Relevant bibliographies by topics / Ferrous Metallurgy

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Ferrous Metallurgy'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "Ferrous Metallurgy"

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Urtsev, V. N., Yu N. Gornostyrev, V. L. Kornilov, and A. V. Shmakov. "Nanoengineering in ferrous metallurgy." Steel in Translation 42, no. 2 (February 2012): 200–201. http://dx.doi.org/10.3103/s096709121202026x.

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Nemenenok, B. M., and I. A. Trusova. "Department «Metallurgy of ferrous and non-ferrous alloys»." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 3 (October 5, 2018): 11–18. http://dx.doi.org/10.21122/1683-6065-2018-3-11-18.

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The information is given about the history of the Department of «Metallurgy of ferrous and non-ferrous alloys», which has undergone three changes in the name:» Foundry of ferrous and non – ferrous metals « – «Metallurgy of casting alloys» – «Metallurgy of ferrous and non-ferrous alloys». The article describes the main developments made at the Department and implemented at the enterprises of the Republic of Belarus, the Russian Federation and Ukraine. The information is provided about the awards and honorary titles of employees of the Department during the existence of the Department. The specialties for which training of specialists with higher education at the I and II stages is implemented in postgraduate and doctoral studies are given. The names of the heads of enterprises, leading specialists and civil servants – graduates of the Department are provided.
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Kunanbaeva, Kymbat, Shakizada Niyazbekova, Symbat Olzheken, and Sergey Ryabichenko. "Increasing the energy efficiency of the city-forming organizations of ferrous metallurgy." E3S Web of Conferences 284 (2021): 01006. http://dx.doi.org/10.1051/e3sconf/202128401006.

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The issues of increasing the energy efficiency of the city-forming organizations of ferrous metallurgy are considered in this paper. Ferrous metallurgy is characterized by a high concentration of city-forming organizations, high social significance, and high energy intensity. The paper studies the issues of energy consumption of the city-forming organizations of ferrous metallurgy, highlights the directions for increasing the efficiency of the use of energy resources.
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NISHIZAWA, Jun-ichi. "Future of Non-ferrous Metallurgy." Journal of the Mining Institute of Japan 104, no. 1201 (1988): 147–55. http://dx.doi.org/10.2473/shigentosozai1953.104.1201_147.

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Pearce, F. J., and I. A. Cameron. "Advances in Ferrous Extractive Metallurgy." Canadian Metallurgical Quarterly 24, no. 1 (January 1985): 1–14. http://dx.doi.org/10.1179/cmq.1985.24.1.1.

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Roelandts, Iwan. "Reference materials in ferrous metallurgy." Spectrochimica Acta Part B: Atomic Spectroscopy 45, no. 7 (January 1990): 815–37. http://dx.doi.org/10.1016/0584-8547(90)80060-v.

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Afonin, S. Z., Yu S. Yusfin, P. I. Chernousov, and S. V. Murinets. "Energy conservation in ferrous metallurgy." Metallurgist 42, no. 8 (August 1998): 292–96. http://dx.doi.org/10.1007/bf02511802.

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Jabłońska, Mariola, Marzena Rachwał, Małgorzata Wawer, Mariola Kądziołka-Gaweł, Ewa Teper, Tomasz Krzykawski, and Danuta Smołka-Danielowska. "Mineralogical and Chemical Specificity of Dusts Originating from Iron and Non-Ferrous Metallurgy in the Light of Their Magnetic Susceptibility." Minerals 11, no. 2 (February 20, 2021): 216. http://dx.doi.org/10.3390/min11020216.

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This study aims at detailed characteristics and comparison between dusts from various iron and non-ferrous metal production processes in order to identify individual mineral phases, chemical composition, and their influence on the values of magnetic susceptibility. Various analytical methods used include inductively coupled plasma optical emission spectroscopy, X-ray diffraction, scanning electron microscopy, and Mössbauer spectroscopy integrated with magnetic susceptibility measurements and thermomagnetic analysis. Metallurgical wastes that have arisen at different production stages of iron and non-ferrous steel are subjected to investigation. The analyzed dust samples from the iron and non-ferrous metallurgy differ in terms of magnetic susceptibility as well as their mineral and chemical composition. The research confirmed the presence of many very different mineral phases. In particular, interesting phases have been observed in non-ferrous dust, for example challacolloite, which was found for the first time in the dusts of non-ferrous metallurgy. Other characteristic minerals found in non-ferrous metallurgy dusts are zincite, anglesite, and lanarkite, while dusts of iron metallurgy contain mostly metallic iron and iron-bearing minerals (magnetite, hematite, franklinite, jacobsite, and wüstite), but also significant amounts of zincite and calcite.
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Rastyannikova, Elizaveta. "GLOBAL NON-FERROUS METALLURGY RESOURCES MARKET." Eastern Analytics, no. 3 (2020): 109–30. http://dx.doi.org/10.31696/2227-5568-2020-03-109-130.

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Since the beginning of the XXI century, the raw material of non-ferrous metallurgy began to acquire new outlines. First, due to the growing demand for resources from the rapidly developing countries of Asia (China, India, South Korea), the volume of world production and international flows of both raw ore and ore dressing – concentrates have increased. Secondly, the concentration of countries that produce raw materials on the one hand and consume them on the other has increased. The article is devoted to comparative statistical analysis of international flows of raw materials of non-ferrous metals. The leading countries in the world exporting non-ferrous metal ores and countries importing them have been identified. The impact of new applications of non-ferrous metals on increasing international trade, such as the expansion of the production of batteries for electromobile and consumer electronics, the development of nuclear energy, etc., is highlighted.
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KONDOH, Katsuyoshi, Takayuki YONEZAWA, Junko UMEDA, Hisashi IMAI, and Ryoichi SOUBA. "Advanced Powder Metallurgy Non-Ferrous Materials." Journal of the Japan Society of Powder and Powder Metallurgy 61, no. 11 (2014): 501–13. http://dx.doi.org/10.2497/jjspm.61.501.

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Dissertations / Theses on the topic "Ferrous Metallurgy"

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Strandkvist, Ida. "A Dissolution Study of Common Ferrous Slag Minerals." Licentiate thesis, Luleå tekniska universitet, Mineralteknik och metallurgi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-60227.

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Slag is a vital part of metal production since it removes impurities from the metal. As slag is continuously produced, the options are either to dispose slag in landfill or acknowledge slag as a product. Slag can be used in many different applications, ranging from fertilizer to construction material; in some cases, the properties of slag make it a superior alternative to virgin stone materials. The properties and thereby the field of application is determined by the mineralogical composition of the slag. Slag is considered an environmentally friendly material as long as the leaching of certain elements stay below specified thresholds, for leaching of chromium the limit is at 0.5 mg/kg for slag to be considered inert material. The most common leaching approach is to compare leaching analyses from slag samples to deduce which elements and/or phases contribute or prevent leaching of specific elements. With this method each slag need to be investigated separately and the result may only apply for that specific slag type. In this thesis the approach is different: individual minerals are synthesized and dissolved separately at various pH to accurately assess their dissolution capabilities. By studying the dissolution of individual minerals the leaching of any type of slag with known mineralogical composition can be anticipated. Slag leaching can then be tailored, for example, chromium leaching can be eliminated if all chromium containing phases are removed or not capable of dissolving. In this thesis the dissolution of akermanite, β- and γ-dicalciumsilicate, merwinte, monticellite, pseudowollastonite and magnesiowüstite with varying FeO/MgO ratios are studied. Leaching tests of magnesiowüstite with 4 wt% Cr2O3 were also included. The dissolution of each mineral is calculated by the acid addition required to maintain a constant pH with 50 mg of mineral in 100 ml water. As expected, the dissolution decreases as pH increases, with exception of the dicalcium silicates which dissolved completely at pH 4 to 10. The dissolution of the minerals is largely connected to the elemental composition. In the silica based minerals a high Ca ratio promotes dissolution while a high Si ratio impedes the dissolution rate. Both dissolution and chromium leaching of magnesiowüstite depends on the FeO content, with increasing FeO content the dissolution and leaching decreases, magnesiowüstite with at least 60 wt% FeO does not dissolve at pH 10. None of the magnesiowüstite compositions were close to the chromium leaching limit of inert material, 0.5 mg/kg, as the highest leaching sample, with 52 wt% FeO, leached 0.069 mg/kg.
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Daenzer, Renaud. "Investigating the role of ferrous iron in the arsenic(V)-iron(II, III) coprecipitation process system." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=103615.

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In this thesis, the effects of iron(II) on arsenic(V) removal from acidic sulphate solutions in lime neutralization systems were investigated. The role of Fe(II) was analyzed via different types of experiments. Firstly, 2-stage continuous coprecipitation (CCPTN) circuit experiments were run, involving variable Fe(II)/Fe(III) fractions whilst maintaining an Fe(tot)/As(V) molar ratio of 4, and the resultant products were subjected to stability testing. It was found that CCPTN results were reproducible; that increasing the Fe(II) content resulted in somewhat lower initial arsenic(V) removal, but still better results than those obtained from equimolar Fe(III)-As(V) solutions in the absence of ferrous pointing to the latter's beneficial effect on arsenic(V) precipitation and retention. Coprecipitates aged at constant pH 8, drifting pH and at various temperatures reached pseudoequilibrium after several months. Notably, long term stability testing of the coprecipitates showed that up to an Fe(II)/Fe(III) ratio of 1 at 20 °C, As(V) release was maintained below 1 mg/L after 463 days with "drifting pH" stabilized at 5 increasing only to 1.9 mg/L upon pH adjustment to 8. Secondly, the behaviour of Fe(II) was studied in batch reactor set-ups as part of hydrolysis and oxidation experiments with and without As(V). It was shown in the absence of As(V), Fe(II) precipitated out of solution completely between pH 7.5 and 8.5. Subsequent oxidation of the ferrous hydroxide slurry was found to proceed via a series of transformations starting from ferrous hydroxide to green rust, to magnetite and finally goethite. The oxidation kinetics were governed by oxygen mass transfer. In the presence of As(V) both Fe(II) and As(V) precipitated from solution starting at pH 3 with the latter ultimately dropping below 1 mg/L between pH 6.5 to 9 via the proposed precipitation of a ferrous arsenate compound (symplesite). Subsequent oxidation of the Fe(II)-As(V) slurry at constant pH 8 led to destabilization of the ferrous arsenate phase and concomitant partial release of As(V). The bulk control of As(V) in the latter case switched from ferrous arsenate to ferric arsenate or arsenate adsorption on freshly formed iron(III) hydroxide.
Cette thèse à pour objet d'étudier les effets des ions ferreux (Fe(II)) sur la stabilisation, par neutralisation à base de chaux, de l'arsenic (As(V)) contenu dans des solutions acides sulfatées. Le rôle des ions ferreux a été analysé à l'aide de différents types d'expériences. Premièrement, des essais de co-précipitation en circuit continu (CCPTN) comprenant deux étapes ont été réalisés pour différentes fractions de Fe(II)/Fe(III), tout en conservant un rapport molaire Fe(tot.)/As(V) égal à 4; les produits obtenus ont par la suite été soumis à des tests de stabilité à long terme. Les résultats de ces tests ont montré de façon reproductible qu'une augmentation de la teneur en ions ferreux réduisait l'effet de stabilisation de l'As(V) initialement présent; ces résultats étaient cependant meilleurs que dans le cas de tests de stabilisation de l'As(V) présent dans des solutions équimolaires de Fe(III)-As(V), en l'absence d'ions ferreux, validant l'effet positif des ces derniers sur la précipitation et la rétention de l'As(V). Après plusieurs mois de vieillissement dans des conditions variées de pH constant (ajusté à pH 8), de pH non-ajusté et de températures, les produits de co-précipitation ont fini par atteindre un état de pseudo-équilibre. Notamment, les tests de stabilité à long terme ont montré que pour une fraction molaire Fe(II)/Fe(III) allant jusqu'à 1 et une température de 20 °C, la libération d'As(V) en solution après 463 jours était maintenue en-dessous de 1 mg/L, respectivement 1.9 mg/L, dans le cas d'une solution au pH non-ajusté (se stabilisant à pH 5), respectivement d'une solution au pH constamment ajusté à pH 8. Deuxièmement, le comportement des ions ferreux a été étudié à l'aide d'un réacteur discontinu, dans le cadre de tests d'hydrolyse et d'oxydation, en présence ou non d'As(V). Les résultats de cette partie de l'étude ont montré qu'en l'absence d'As(V), les ions ferreux précipitent intégralement entre pH 7.5 et 8.5. Par la suite, l'oxydation de la suspension d'hydroxyde de fer (II) procède selon une série de transformations allant de la rouille verte, à la magnétite et finalement à la goethite. Les résultats ont également montré que la cinétique d'oxydation était gouvernée par le transfert de masse d'oxygène. En présence d'As(V), la précipitation du Fe(II) et de l'As(V) à été observée à partir de pH 3, sous la forme suggérée d'un composé d'arséniate de fer (II) (symplésite), la concentration finale d'As(V) non-précipité atteignant moins d'1 mg/L entre pH 6.5 et 9. Par la suite, l'oxydation de la suspension de Fe(II)-As(V) à pH 8 constant a entrainé la déstabilisation de la phase d'arséniate de fer et la remise en solution partielle d'As(V). En effet, dans ce cas particulier, le control de l'As(V) à entrainé la conversion de la majorité de la phase d'arséniate de fer (II) en arséniate de fer (III) ou possiblement son adsorption à la surface d'hydroxyde de fer (III) fraichement oxydé.
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Smith, Graham T. "The secondary machining of Fe-Cu-C ferrous powder metallurgy compacts by turning, boring and drilling." Thesis, University of Birmingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395323.

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Rhodes, Nigel Anthony. "The growth, structure and properties of sinter-necks in mixed ferrous powder systems." Thesis, University of Nottingham, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263406.

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Nicholas, Matthew. "Metallurgy in the gloaming : non-ferrous metalwork from three early Anglo-Saxon cemeteries at RAF Lakenheath, Suffolk." Thesis, Cardiff University, 2016. http://orca.cf.ac.uk/91120/.

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In the late 1990s Suffolk County Council Archaeology Service (now Suffolk Archaeology) began a series of excavations in advance of construction work at the US Air Force base RAF Lakenheath (Eriswell, Suffolk). During the course of this work three substantial Early Anglo-Saxon cemeteries (dated from 475 to 650 CE) were excavated. These sites are some of the largest and best preserved Anglo-Saxon cemeteries excavated in modern times. Many of the inhumations were furnished. Amongst the host of grave goods were approximately 800 non-ferrous metal objects. This presented a significant opportunity to examine Early Anglo-Saxon non-ferrous metallurgy. Previous studies of Early Anglo-Saxon non-ferrous artefacts have tended to focus on acquiring quantitative data using invasive sampling on specific (predominantly cast) object types. The data from these small subsets of objects were then extrapolated to create an interpretation of the technological and metallurgical skills of the era. As this tended to exclude sheet metal objects and the more utilitarian metalwork it is suggested by the author here that this approach is not representative and leaves something to be desired. In this study it was decided to focus on producing a broad data set that, whilst being qualitative, would allow broad trends in alloy composition to be assessed (if present) against a variety of variables. Data was predominantly acquired using handheld portable X-ray fluorescence (HHpXRF). The results showed that the usage of copper and silver alloys in the Early Anglo-Saxon period is more complex than has previously been suggested. It is thought that this is predominantly linked to decisions regarding an object’s manufacturing technique, but there is also evidence to suggest that elements of cultural identity may have also had a role to play. There is also evidence for continuity of practice between the late Romano- British and Early Anglo-Saxon periods.
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Black, Sean C. E. "The effect of abrasive properties on the surface integrity of ground ferrous materials." Thesis, Liverpool John Moores University, 1996. http://researchonline.ljmu.ac.uk/5100/.

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The effect of the thermal properties of alumina and CBN abrasives on workpiece temperatures in grinding was investigated. A review of the literature revealed a lack of knowledge of the thermal properties of CBN limiting the accuracy of theoretical predictions of the heat conduction in CBN grinding. A grain contact analysis was developed to predict the energy partitioning between the workpiece and wheel. The analysis takes into account two dimensional transient heat transfer in the grain and maintains temperature compatibility at the grain wear flatworkpiece interface. The proportion of the total grinding energy entering the workpiece, termed the partition ratio, was estimated by correlating measured temperature distributions with theoretical distributions. The partition ratios when grinding with CBN were substantially lower than grinding with alumina wheels for a range of ferrous materials. The lower partition ratios with CBN grinding were attributed to the higher thermal conductivity of the CBN abrasive. The effective thermal conductivity of alumina and CBN grains were quantified by correlating the theoretical partitioning model with the measured results. The effective thermal conductivity of CBN was found to be considerably lower than the reported theoretical value albeit much higher than the effective thermal conductivity of alumina. A model to predict the background temperature in grinding was proposed based on the experimental findings. The thermal model takes into account a triangular heat flux distribution in the grinding zone, the real length of contact and experimentally validated grain thermal properties. The input parameters to the thermal model were specified. To avoid temper colours on the workpiece surface the maximum background temperature must not exceed 450 to 500deg. C. for commonly used ferrous materials.
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Chandraprabha, M. N. "Studies On Bio-Oxidation A Refractory Gold Containing Sulphidic Concentrate With Respect To Optimization And Modeling." Thesis, Indian Institute of Science, 2000. http://hdl.handle.net/2005/188.

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Although bacterial leaching of sulphidic minerals is a well-known phenomenon, it is only in the last ten years that full-scale bacterial leaching plants have been commissioned for gold processing. In order for bacterial leaching to compete successfully with other pretreatment processes for refractory ores, particularly with established technologies such as roasting and pressure leaching, it needs to be efficient. This requires the optimization of the parameters affecting the leaching reaction and the growth of bacteria. The entire biotreatment process is agitation leaching, carried out in stirred reactors or Pachuca type reactors. The bacterial oxidation is a complex reaction involving gaseous, liquid and solid phases. The interactions are highly complex, and analysis is complicated by the presence of solids in the leaching medium. Inspite of the amount of research that has been performed, kinetic and process models are underdeveloped. Since kinetic data varies widely with the type and source of concentrate, experimental data should be generated before doing the full-scale reactor design. In sizing reactors for a commercial scale process, it would be useful to have a mathematical model that one could use to predict the amount and rate of release of metal, as a function of the various operating parameters of the system. G.R.Halli arsenical gold sulphide concentrate obtained from Hutti Gold Mines Ltd., Karnataka, was chosen for our study, because of its high refractoriness. An indegenous strain of Thiobacillus ferrooxidans was used for biooxidation. The experiments were conducted in a well-agitated stirred tank reactor under controlled conditions. Sparged air was supplemented with carbon-dioxide for optimized growth. In this work, more than 90% gold and 95% silver could be recovered from the sulphidic gold concentrate when bioleaching was used ahead of cyanidation, compared to 40% and 50% by direct cyanidation. A generalized model, which accounts for both direct bacterial attack and indirect chemical leaching, has been proposed for the biooxidation of refractory gold concentrates. The bacterial balance, therefore, accounts for its growth both on solid substrate and in solution, and for the attachment to and detachment from the surface. The overall process is considered to consist of several sub-processes, each of which can be described in terms of a mechanism and related rate expressions. These sub-processes were studied seperately under kinetically controlled conditions. The key parameters appearing in the rate equations were evaluated using the experimental data. Since the refractory concentrate contains pyrite and arsenopyrite as the major leachable entities, leaching studies have been done on pure pyrite and arsenopyrite as test minerals and the key parameters in the rate equations are evaluated using this data. The model so developed is tested with the leaching kinetics of the concentrate. The growth of bacteria is dependent on the availability of the substrate, ferrous iron, and the dependence is modelled by the widely accepted Monod equation. The effect of carbon dioxide supplementation on the bacterial activity was studied and the optimal concentration for growth was found to be l%(v/v). Studies on indirect chemical leaching showed that the rate is sensitive to surface area of concentrate. Indirect rate constant of arsenopyrite was found to be greater than that of pyrite, since pyrite is more nobler than arsenopyrite. Conditions of direct leaching alone was obtained at high pulp density and using substrate adapted bacteria. The rate constant of arsenopyrite was found to be greater than that of pyrite. The parameters obtained were tested with the overall batch leaching data of the concentrate and favourable comparision was obtained. Thus, it has been possible to isolate the various simultaneous sub-processes occurring during the leaching and propose useful models to describe these processes in some detail. The model has been extended successfully to predict the continuous leaching behaviour using the parameters obtained from the batch data. Studies on the effect of residence time and pulp density on steady state behaviour showed that there is a critical residence time and pulp density below which washout conditions occur. The critical residence time at 10% pulp density was found to be 11 hrs. Operation at pulp densities lower than 5% and residence times lower than 72 hrs is not favourable for efficient leaching. Studies on the effect of initial ferric iron concentration showed that there exists an optimum concentration of ferric iron at which the time required to reach steady state is minimum.
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Souza, Fabrício Mendes. "Estudo da microestrutura, da textura cristalográfica e da recristalização em chapas obtidas por lingotamento contínuo e semicontínuo da liga de alumínio AA4006." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-07052012-121639/.

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A liga de alumínio designada AA4006 é muito utilizada na indústria. É uma liga do sistema Al-Fe-Si, com teores (% em massa) de Si na faixa de 0,8 a 1,2% e Fe entre 0,5 e 0,8%. Apesar de ser bastante utilizada, ela foi pouco estudada. Neste trabalho foi realizado um estudo comparativo da microestrutura e da textura cristalográfica entre chapas da liga AA4006 produzidas por dois processos industriais de lingotamento: contínuo (Twin roll caster TRC) e semicontínuo (Direct chill DC). Para a caracterização microestrutural, foram utilizadas as técnicas de microscopia óptica com luz polarizada, microscopia eletrônica de varredura com microanálise química, medidas de condutividade elétrica e ensaios de dureza Brinell. A textura cristalográfica foi determinada por difração de raios X. Foram detectadas e discutidas diferenças significativas nas morfologias e distribuições de grãos e de partículas de fases intermetálicas. O estudo da textura cristalográfica foi realizado ao longo da espessura das tiras e os resultados mostraram variações significativas da textura entre as chapas ao longo da espessura. A chapa produzida por lingotamento contínuo apresentou uma típica textura de cisalhamento nas proximidades de sua superfície, enquanto nas regiões mais internas a fibra foi observada. O estudo da recristalização de chapas metálicas laminadas a frio é muito útil para a obtenção da temperatura de amolecimento do material submetido a um tratamento térmico. Tratamentos térmicos isócronos no intervalo de uma hora foram feitos em amostras das duas chapas e a chapa produzida pelo processo TRC apresentou a temperatura para 50% de recristalização em torno de 290 ºC e a amostra da chapa produzida pelo processo DC em torno de 270 ºC. A textura cristalográfica pode mudar com a recristalização e com a laminação do metal. Utilizando estas etapas de processamento do material, a orientação dos grãos de uma tira metálica pode ser otimizada, a fim de, por exemplo, melhorar a estampabilidade de chapas na obtenção de um dado produto com valor agregado. Neste trabalho as curvas de amolecimento para duas chapas produzidas por lingotamento contínuo e lingotamento semicontínuo da liga de alumínio AA4006 também foram determinadas e comparadas. Embora as diferenças detectadas entre as curvas de amolecimento tenham sido pequenas, foi possível verificar que a recristalização da chapa produzida por twin roll caster TRC ocorre em temperaturas mais elevadas do que na chapa produzida pelo processo direct chill DC. Resultados da textura cristalográfica em amostras destas chapas (laminadas e recozidas) foram obtidos utilizando difração de raios X e difração de elétrons retroespalhados EBSD. Estes resultados indicaram a presença da textura de cisalhamento na superfície e a fibra no centro da amostra laminada a frio (70% de redução) da chapa obtida por lingotamento contínuo. Na amostra da chapa obtida por lingotamento semicontínuo, a componente cubo e a fibra foram vistas na superfície e no centro. Uma textura fraca com grãos orientados ao acaso foi vista nas duas amostras (TRC e DC) recristalizadas das duas chapas, possivelmente, devido à nucleação estimulada por partículas. A fibra desapareceu nas amostras (TRC e DC) recristalizadas.
AA4006 Aluminum alloy is extensively used in industry. It belongs to the Al-Fe-Si system, with Si between 0,8 and 1,2 % mass, and Fe between 0,5 and 0,8 % mass. This alloy is less studied despite its extensive use. A comparative microstructural study has been performed in as-received AA4006 alloy strip produced by two industrial casting processes: twin roll caster (TRC) and direct chill (DC). Polarized optical microscopy, scanning electron microscopy with microanalysis, electrical conductivity measurements and Brinnel hardness tests have been used for microstructural characterization. Significant differences in the grain and intermetallic particle sizes, morphologies and distributions were detected and are discussed. Thermal treatments effects on the silicon content in solid solution were also studied. Crystallographic textures have been also determined. Textures across thickness of both sheets have been analyzed and compared. Results showed significant texture changes across thickness of the specimens. Texture analysis was carried out using X-ray diffraction technique. Twin roll caster (TRC) sheet presented the typical shear texture near the surface, while, in internal regions, the -fibre was observed. A recrystallization study of cold rolled metallic sheets is very important to obtain softening temperature for the material during annealing. After cold rolling with 70% of reduction in thickness, followed by isochronous heat treatments, the samples of the two sheets produced by TRC and DC presented a 50% recrystallization temperature around 290 ºC and 270 ºC, respectively. Crystallographic texture can change during the metal rolling and recrystallization. These processing steps can optimize the grain orientation distribution in a metal strip to improve, for instance, the stamping process, in order to obtain an aggregated value product. Softening curves were also compared and determined for the two sheets (rolled and annealed) of the AA4006 aluminum alloy produced by twin roll caster TRC and direct chill DC processes. It was detected that the recrystallization of the strip produced by TRC process occurs at a higher temperature than that for the DC process, despite the little differences in their softening curves. Crystallographic texture results, for the sheet samples, were obtained by using X-ray diffraction and electron back scatter diffraction EBSD techniques. These results indicated the shear texture presence on the surface and fiber at the center of the cold rolled (70% area reduction) sample for the sheet produced by TRC process. In the sheet sample produced by the DC process, under the same conditions, the cube component and fiber texture (at the surface and at the center) were observed. A texture with random oriented grains was detected in two deformed and recrystallized samples of the two sheets (TRC and DC). It is suggested that this texture occurs due to the particle stimulated nucleation. There was fiber absence in the recrystallized samples (TRC and DC).
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Головко, И., and I. Golovko. "Планирование производства на предприятиях по глубокой переработке цветных металлов : магистерская диссертация." Master's thesis, б. и, 2020. http://hdl.handle.net/10995/86561.

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The main problem of production planning at the enterprise for the processing of non-ferrous metals is a large range of alloys with limited smelting and casting capacities. In this case, it is necessary to connect the cast alloys with the rest of the production in order to balance the capacities of the processing units for rhythmic, uninterrupted and coordinated work. From the validity and accuracy of intra-workshop planning, timeliness, breadth, completeness and reliability of accounting at the enterprise directly depends on the effectiveness and efficiency of its activities in general. Since enterprises for the deep processing of non-ferrous metals have a large number of production sites and technological conversions, for each of which it is necessary to constantly plan production indicators. At the same time, this system should ensure the turnover of metal in a closed metallurgical cycle, prevent the possibility of downtime or overload of existing equipment, personnel, as well as the release of the final product within the time period set by the customer. Thus, the relevance of the research topic lies in the need for continuous planning of production activities that ensure the growth of financial results and reduce the cost of production.
Основной проблемой планирования производства на предприятии по глубокой переработке цветных металлов является большой спектр сплавов с ограниченными плавильно-литейными мощностями. При этом необходимо связать отливаемые сплавы с остальным производством для балансировки мощностей перерабатывающих подразделений для ритмичной, бесперебойной и слаженной работы. От обоснованности и точности внутрицехового планирования, своевременности, широты, полноты и достоверности учета на предприятии напрямую зависит результативность и эффективность её деятельности в целом. Поскольку предприятия по глубокой переработке цветных металлов имеют большое количество производственных участков и технологических переделов, то для каждого из которых необходимо постоянно планировать производственные показатели. При этом данная система должна обеспечить оборачиваемость металла в замкнутом металлургическом цикле, предотвратить возможности простоев или перегрузки имеющегося оборудования, персонала, а также выпуск конечного изделия в установленные заказчиком сроки. Таким образом, актуальность темы исследования заключается в необходимости постоянного планирования производственной деятельности, обеспечивающего рост финансового результата и снижения себестоимости выпускаемой продукции.
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Полуяхтов, С. Б., and S. B. Poluyakhtov. "Совершенствование управления технологическими инновациями на предприятиях по глубокой переработке цветных металлов : магистерская диссертация." Master's thesis, б. и, 2020. http://hdl.handle.net/10995/86607.

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The process of creating technological innovations in enterprises for the processing of non-ferrous metals is characterized by high complexity and complexity, which stems from the large number of functional units involved, as well as the need to balance the interests of individual functional units with client requirements and achieve an acceptable level of economic efficiency for the enterprise. Therefore, the development of a set of issues dedicated to the management of technological innovation is an important and urgent task. The main idea of the study is that the existing system of organizing business processes for the creation and management of technological innovations in enterprises for the processing of non-ferrous metals in the current economic situation does not allow effective management of the business process. The paper presents a process approach to management, the main feature of which is that when optimizing the process, you must be able to stop on time. The novelty of the thesis lies in the development of an algorithm for managing technological innovation in enterprises for the deep processing of non-ferrous metals. A feature of the algorithm is the choice of the direction of innovation, taking into account the capabilities of the enterprise, the analysis of customer requests, the determination of the required parameters for implementation, the selection of the owner of the process and the determination of key performance indicators, which makes it possible to reasonably make managerial decisions and effectively use all types of enterprise resources.
Процесс создания технологических инноваций на предприятиях по глубокой переработке цветных металлов характеризуется высокой сложностью и комплексностью, которая проистекает из большого количества задействованных функциональных подразделений, а также необходимостью балансирования интересов отдельных функциональных подразделений с требованиями клиента и достижением приемлемого уровня экономической эффективности для предприятия. Поэтому разработка комплекса вопросов, посвящённых управлению технологическими инновациями, представляет собой важную и актуальную задачу. Основная идея исследования заключается в том, что существующая система организации бизнес-процессов создания и управления технологическими инновациями на предприятиях по глубокой переработке цветных металлов в сложившейся экономической ситуации не позволяет эффективно управлять бизнес-процессом. В работе представлен процессный подход к управлению, основной особенностью которого является то, что при оптимизации процесса необходимо уметь вовремя остановиться. Новизна диссертации заключается в разработке алгоритма управления технологическими инновациями на предприятиях по глубокой переработке цветных металлов. Особенностью алгоритма является выбор направления инноваций с учётом возможностей предприятия, анализ запросов заказчиков, определение требуемых параметров для внедрения, выбор владельца процесса и определение ключевых показателей эффективности, что позволяет обоснованно принимать управленческие решения и эффективно использовать все виды ресурсов предприятия.
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Books on the topic "Ferrous Metallurgy"

1

Ferrous physical metallurgy. Boston: Butterworths, 1989.

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Šalak, Andrej. Ferrous powder metallurgy. Cambridge: Cambridge International Science Pub., 1995.

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Rittner, Mindy N. Ferrous powder metallurgy. Norwalk, CT: Business Communications Co., 1998.

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1932-, Barsky L., ed. Non-ferrous metal ores. New York: Taylor & Francis, 2002.

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Vereecken, Jean. EMC '91: Non-Ferrous Metallurgy--Present and Future. Dordrecht: Springer Netherlands, 1991.

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European, Metals Conference (1st 1991 Brussels Belgium). EMC '91: Non-ferrous metallurgy, present and future. London: Elsevier Applied Science, 1991.

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Vereecken, Jean. EMC ’91: Non-Ferrous Metallurgy—Present and Future. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3684-6.

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Conference of Metallurgists (24th 1985 Vancouver, B.C). Symposium on quality control in non-ferrous pyrometallurgical processes: Proceedings. Montreal, Qué: Metallurgical Society of CIM, 1985.

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Oden, L. L. Removal of copper from molten ferrous scrap: Results of laboratory investigations. Pittsburgh, Pa: U.S. Dept. of the Interior, Bureau of Mines, 1987.

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Symposium on Recent Developments in Non-ferrous Pyrometallurgy (1994 Toronto, Ont.). Recent developments in non-ferrous pyrometallurgy: Proceedings of the symposium on recent developments in non-ferrous pyrometallurgy, Toronto, Ontario, August 21-25, 1994. Edited by Cameron I. A, Toguri J. M, Metallurgical Society of CIM. Non-Ferrous Pyrometallurgy Section, and CIM Conference of Metallurgists (33rd : 1994 : Toronto, Ont.). [s.l: s.n.]., 1994.

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Book chapters on the topic "Ferrous Metallurgy"

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Beiss, P. "Non ferrous materials." In Powder Metallurgy Data, 460–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/10689123_23.

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Stepanov, Vladimir S. "Energy Balances in Ferrous Metallurgy." In Analysis of Energy Efficiency of Industrial Processes, 73–101. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77148-4_6.

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Dutta, Sujay Kumar, and Dharmesh R. Lodhari. "Fundamentals of Nuclear Metallurgy." In Extraction of Nuclear and Non-ferrous Metals, 3–26. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5172-2_1.

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Tang, Hui Ping, Ji Chang Liao, and Ji Lei Zhu. "Porous Metals of Northwest Institute for Non-Ferrous Metal Research." In Progress in Powder Metallurgy, 1281–84. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-419-7.1281.

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Allanore, Antoine, and Guillaume Lambotte. "Materials Processing Fundamentals: Non-Ferrous Extractive Metallurgy Processes." In 2016 EPD Congress, 27–28. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119274742.part2.

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Ciupitu, Ion, Sever Sontea, and Marin Didu. "The Mechanical Characteristics for Ferrous Sintering Alloys." In Materials Development and Processing - Bulk Amorphous Materials, Undercooling and Powder Metallurgy, 271–75. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/3527607277.ch43.

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Kaune, A., K. H. Peters, U. Härter, M. Hirsch, and K. Janssen. "Recovery of non-ferrous metals from residues of integrated steel works." In EMC ’91: Non-Ferrous Metallurgy—Present and Future, 381–89. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3684-6_42.

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Panayotov, V. "Design of non-cyanide technology for flotation of lead—zinc ores: energy prerequisites, implementation and results." In EMC ’91: Non-Ferrous Metallurgy—Present and Future, 3–9. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3684-6_1.

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Gómez, E., F. González, M. L. Blázquez, and A. Ballester. "Bioleaching of complex sulphides with different cultures of mesophilic microorganisms." In EMC ’91: Non-Ferrous Metallurgy—Present and Future, 97–107. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3684-6_10.

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Groudev, S. N., and V. I. Groudeva. "Recovery of copper by dump leaching with use of bacteria and cementation at the Vlaikov Vrah mine, Bulgaria." In EMC ’91: Non-Ferrous Metallurgy—Present and Future, 109–17. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3684-6_11.

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Conference papers on the topic "Ferrous Metallurgy"

1

Růžička, Jan, Mario Machů, and Jan Haščin. "ARCHaEOMETALLURGY – experimental ferrous metallurgy." In METAL 2020. TANGER Ltd., 2020. http://dx.doi.org/10.37904/metal.2020.3454.

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Doshlov, I. O. "Novel Technology For Production Of Petroleum Pitches For Non-Ferrous Metallurgy." In International Conference "Aviamechanical engineering and transport" (AVENT 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/avent-18.2018.18.

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Mihailov, Emil, and Nadezhda Kazakova. "MODELLING OF THE HEAT TRANSFER DURING THE TECHNOLOGICAL PROCESSES IN FERROUS METALLURGY." In ICHMT International Symposium on Advances in Computational Heat Transfer. Connecticut: Begellhouse, 2017. http://dx.doi.org/10.1615/ichmt.2017.840.

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Mihailov, Emil, and Nadezhda Kazakova. "MODELLING OF THE HEAT TRANSFER DURING THE TECHNOLOGICAL PROCESSES IN FERROUS METALLURGY." In ICHMT International Symposium on Advances in Computational Heat Transfer. Connecticut: Begellhouse, 2017. http://dx.doi.org/10.1615/ichmt.2017.cht-7.840.

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Mbedzi, Ndishavhelafhi, Don Ibana, Laurence Dyer, and Richard Browner. "The effect of oxidant addition on ferrous iron removal from multi-element acidic sulphate solutions." In PROCEEDINGS OF THE 1ST INTERNATIONAL PROCESS METALLURGY CONFERENCE (IPMC 2016). Author(s), 2017. http://dx.doi.org/10.1063/1.4974413.

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Klyuev, Roman, Igor Bosikov, and Oksana Gavrina. "Development of Mathematical Model for Specific Power Consumption of Resistance Furnaces at Non-Ferrous Metallurgy Enterprises." In 2018 International Russian Automation Conference (RusAutoCon). IEEE, 2018. http://dx.doi.org/10.1109/rusautocon.2018.8501831.

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Abdrakhimov, Vladimir Zakirovich. "USE OF WASTE OF NON-COLOR METALLURGY IN THE PRODUCTION OF CERAMIC BRICK ON THE BASIS OF FOREST-LIKE LOAM." In Russian science: actual researches and developments. Samara State University of Economics, 2020. http://dx.doi.org/10.46554/russian.science-2020.03-1-604/608.

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The article is devoted to environmental aspects of ceramic brick production using non-ferrous metallurgy waste. Studies show that the use of polymetallic ore dressing as a tailing agent and the tails of gravity of zircon-ilmenite ore as a plasticizing part makes it possible to obtain ceramic bricks with improved technical characteristics, eliminating the use of traditional raw materials. The study used regression analysis, with the help of which mathematical models were obtained that were not included in the series of the experiment of ceramic masses
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Rutkiewicz, Paweł, Ireneusz Malik, Daniel Gawior, Beata Woskowicz-Ślęzak, and Paweł Kryszczuk. "Geomorphic record of historical ferrous metallurgy in Mała Panew and Czarna River valleys (Poland) – Analysis of DEM from airborne LiDAR." In PROCEEDINGS OF THE INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING 2017 (ICCMSE-2017). Author(s), 2017. http://dx.doi.org/10.1063/1.5012450.

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Gudenau, H. W., H. Hoberg, and A. Mayerhofer. "Hot Gas Cleaning for Combined Cycle Based on Pressurized Coal Combustion." In ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/94-gt-417.

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The aim of a project supported by the Minister of Science and Technology is the development of a process for gas cleaning at temperatures above 1573K. The simultaneous removal of particles and alkalis should be possible with this process. This hot gas cleaning ought to be integrated into an advanced combined cycle based on a pressurized slag tap furnace. The research concerning the development of a venturi scrubber with molten slag have been done at the Institute of Ferrous Metallurgy of the Technical University of Aachen. Studies concerning the chemical and physical properties of slags are necessary to realize such a system for hot gas cleaning. This research must be followed by research concerning the influence of physical properties of slags such as viscosity or surface tension on the atomization of liquids. Furthermore, studies are necessary concerning the precipitation efficiency of a venturi scrubber with a liquid which has the same physical properties as slag. This paper presents thermochemical calculations with regard to the absorption of gaseous alkalis by molten slag. Furthermore, it contains the investigations concerning the influence of alkali oxides on the viscosity of moltén slag.
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Dobrzanski, Janusz, and Jerzy Pasternak. "Reliability and Safety of the Power Equipment in Respect of Properties Evaluation of Welded Joints Made From New Generation Creep-Resisting Steels." In ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-77044.

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The modernisation of power generation sector has involved the construction of new power units, having supercritical parameters e.g. 580/ 600°C with 280bar, and calculated efficiency of approx. 43%. The new boilers are supercritical ones of capacities 440MW and 840MW. Their investors expect that new creep-resistant steels to be used in order to comply with the operational requirements, as well as to assure the appropriate reliability and safety of the boiler equipment in operation. Authors describe a co-operating process has been made with RAFAKO S.A. the Institute for Ferrous Metallurgy in Gliwice, the Institute of Welding and the Silesian Technical University in Katowice, for several years now, initiating research and development programmes. This paper contains selected information, test results and their evaluation before implementation of the new creep-resistant steels, including evaluation of: - working parameters and temperature conditions of main boiler components, which influence reliability and safety procedures, - base material, welded joints and HAZ structure by means of LM and SEM methods in the welding technology implementation process, - the requested level of mechanical properties, including corrosion mechanisms, - corrosion and creep-resistance results, - loss of service life for selected evaporator and steam superheater components, as crucial elements in evaluation of reliability and safety of boiler equipment.
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