Log in

Relevant bibliographies by topics / Grinding additives / Journal articles

To see the other types of publications on this topic, follow the link: Grinding additives.

Journal articles on the topic 'Grinding additives'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Grinding additives.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Wang, Jian Feng, Dong Min Wang, Duan Le Li, Guan Bao Tang, and Cheng Du. "The Theoretical Research on Development Direction of Cement Grinding Aids." Advanced Materials Research 668 (March 2013): 269–73. http://dx.doi.org/10.4028/www.scientific.net/amr.668.269.

Full text

Abstract:

Cement grinding aids has been widely used in cement grinding process. The development of traditional compound cement grinding aids, such as triethanolamine and salts based has encountered a bottleneck. Synthesis of cement grinding aids can be improved by the molecular structure design of traditional cement grinding aids, or even lay aside the shackles of traditional cement additive and synthesize high-grinding effect, high performance and low cost cement grinding aids. In this paper, it has proposed two types of cement additives research direction，medium-small molecule and polymer synthesis system. Finally, it had introduced the application performance advantages of two new synthetic grinding aids, compared to triethanolamine and triisopropanolamine.

APA, Harvard, Vancouver, ISO, and other styles

2

Zhou, Zhao Zhong, Kai Ping Feng, Bing Hai Lv, Hong Wei Fan, and Ju Long Yuan. "Analysis on Wear of Self-Sharpening Fine Super-Hard Abrasive Tool." Advanced Materials Research 797 (September 2013): 528–33. http://dx.doi.org/10.4028/www.scientific.net/amr.797.528.

Full text

Abstract:

In order to improve the efficiency of ultra-precision processing, the self-sharpening fine super-hard abrasive tool is presented to reduce or eliminate the surface and subsurface defects and improve the process efficiency. In the study of efficient experimental research of self-sharpening fine super-hard abrasive tool, base on single factor experiments such as additives composition, grinding speed, grinding pressure and processing liquid. The results showed that the wear rate of the self-sharpening fine super-hard abrasive tool can reach appropriate rate when the additive concentration 30wt%, grinding pressure 45N, grinding speed 60rpm and processing liquid 1wt%.

APA, Harvard, Vancouver, ISO, and other styles

3

Miethke, Lina, Paul Prziwara, Jan Henrik Finke, and Sandra Breitung-Faes. "Opposing Effects of Additives in Dry Milling and Tableting of Organic Particles." Pharmaceutics 13, no. 9 (September 9, 2021): 1434. http://dx.doi.org/10.3390/pharmaceutics13091434.

Full text

Abstract:

Applying additives and excipients during the dry processing of fine particles is a common measure to control the particle–particle interactions, to specifically influence the powder properties and to enhance the process efficiency or product quality. In this study, the impacts of a particulate lubricant, a nano-disperse flow additive and liquid grinding aids on the dry fine milling and subsequent tableting of the ground material were investigated for three different organic model compounds. It is presented that the three additive classes cause varying and partly opposing effects during these process steps. Especially the lubricant and the grinding aids were shown to increase the efficiency of the milling process as well as the product fineness of the ground material, and to avoid critical product adhesions on the machine surfaces. Thereby, stable and efficient grinding conditions were partially not possible without the addition of such additives. However, as these positive effects are attributed to a reduction of the adhesive forces between the particles, much lower tablet strengths were achieved for these additives. This propagation of powder, and in turn, final product properties over whole process chains, has not been studied in detail so far. It was further revealed that the material behavior and the microstructure of the product particles is decisive for the processing as well, which is why additive effects may be product-specific and can even be suppressed under certain processing conditions. In comparison to the process performances, the powder properties and surface energies of the product particles were less influenced by the additives. On the contrary, particle-based morphologies or deformation behavior seem to play a major role in comparison to inorganic materials. Thus, it can be stated that global bulk properties and surface energies provide first indications of powder behavior and susceptibility. However, additional specific properties need to be evaluated to more clearly understand the influences of additives.

APA, Harvard, Vancouver, ISO, and other styles

4

Prziwara, Paul, and Arno Kwade. "Grinding aid additives for dry fine grinding processes – Part II: Continuous and industrial grinding." Powder Technology 394 (December 2021): 207–13. http://dx.doi.org/10.1016/j.powtec.2021.08.039.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Li, Wei, Bin Hu, and Ming Ming Ma. "Grinding Performance of Permeated Grinding Wheel." Advanced Materials Research 189-193 (February 2011): 121–24. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.121.

Full text

Abstract:

The permeated grinding wheel was a new kind of grinding wheel, which was permeated by the chemical additives and solid lubricant into the interior gaps of the grinding wheel. Therefore, the grinding wheel can form a lubrication film on the surface of the grinding wheel. This grinding wheel has some good features, such as lower grinding temperature, smaller grinding force, higher life of the grinding wheel, and can prevent the adhesion of chip onto the grinding wheel surface. The experimental results indicate that the ground surface quality and grinding efficiency have been remarkably improved for more hard-to-cut materials.

APA, Harvard, Vancouver, ISO, and other styles

6

Samchenko, Svetlana, and Dmitriy Zorin. "Electricity costs for grinding of cement with expanding additives." International Journal of Engineering & Technology 7, no. 2.23 (April 20, 2018): 274. http://dx.doi.org/10.14419/ijet.v7i2.23.11930.

Full text

Abstract:

The most popular building material, including on transport facilities, is cement. Cement production is associated with the electricity costs. The biggest cost item is the consumption for the cement clinker grinding. It is known that disperse characteristics of cements, such as fineness of grinding, specific surface, coarseness of grading, largely determine their hydraulic properties, and for expanding cements - the deformation ones. In the paper, the issues of electric power consumption were considered when grinding extender expanders: aluminous slag, sulfoaluminate, sulfoferrite and sulfoalumoferrite clinkers.

APA, Harvard, Vancouver, ISO, and other styles

7

NAKAYAMA, Mamoru, Katsuhisa KUDO, Kentaro TAMAMURA, and Katsuhiko IKEDA. "Effect of EP-additives in grinding oil upon grinding performances - Cylindrical plunge grinding of stainless steels." Journal of the Japan Society of Precision Engineering 51, no. 7 (1985): 1409–13. http://dx.doi.org/10.2493/jjspe1933.51.1409.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Zaikin, Pavel A., Ok Ton Dyan, Innokenty R. Elanov, and Gennady I. Borodkin. "Ionic Liquid-Assisted Grinding: An Electrophilic Fluorination Benchmark." Molecules 26, no. 19 (September 23, 2021): 5756. http://dx.doi.org/10.3390/molecules26195756.

Full text

Abstract:

We demonstrated the influence of liquid additives on the rate and selectivity of mechanochemical fluorination of aromatic and 1,3-dicarbonyl compounds with F-TEDA-BF4. Substoichiometric catalytic quantities of ionic liquids speed up the reaction. We proposed an improved protocol for ionic liquids-assisted fluorination that allows easy and efficient isolation of fluorinated products by vacuum sublimation. A careful choice of additive results in high yields of fluorinated products and low E-factor for the overall process. Here, we report a benchmarking study of various ionic liquids in comparison with representative molecular solvents. A lower viscosity of ionic liquid additive is typically associated with higher yields and a higher degree of difluorination. Ionic liquids with fluorous anions (triflate and triflimide) are shown to be the most efficient catalysts for ionic liquid-assisted grinding.

APA, Harvard, Vancouver, ISO, and other styles

9

Apriliani, Ari, Sukarsa Sukarsa, and Hexa Apriliana Hidayah. "KAJIAN ETNOBOTANI TUMBUHAN SEBAGAI BAHAN TAMBAHAN PANGAN SECARA TRADISIONAL OLEH MASYARAKAT DI KECAMATAN PEKUNCEN KABUPATEN BANYUMAS." Scripta Biologica 1, no. 1 (March 25, 2014): 78. http://dx.doi.org/10.20884/1.sb.2014.1.1.30.

Full text

Abstract:

People can’t detached from plants in fulfilling their needs, such as plant as food additives. This study aimed to know the types and parts of plants as food additives, and its benefits, as well as its utilization by people of Pekuncen District Banyumas Regency. This research used survey method with purposive random sampling and semi-structured interviews. Data were analyzed descriptively. The results of this study indicated 34 species of 19 familia plants used as food additives. The part of plants used as food additives were tubers, rhizomes, seeds, stems, leaves and fruits. Food additive plants were utilized as flavor enhancer, natural dye, preservatives and acid flavor. The plants were utilized by cooking, cuting, crushing, shredding, grinding, "dikeprek", roasting, boiling, and marinating.

APA, Harvard, Vancouver, ISO, and other styles

10

Dai, Qiu Lian, Can Bin Luo, and Cui Jiao Liao. "Experimental Study on Porous Metal Bonded Diamond Grinding Wheels (II) ─ Grinding Performance of Porous Wheels." Key Engineering Materials 359-360 (November 2007): 48–52. http://dx.doi.org/10.4028/www.scientific.net/kem.359-360.48.

Full text

Abstract:

In this paper, two metal-bonded diamond wheels with different porosity were fabricated. The porosity of diamond wheel without additives of pore inducers is 7% and the wheel with pore inducers is 38%. Grinding experiments with these two grinding wheels on marbles were carried out under different grinding conditions. Experimental results revealed that highly porous grinding wheel has smaller grinding forces and better self-sharpening ability than the compact grinding wheel under the same grinding conditions.

APA, Harvard, Vancouver, ISO, and other styles

11

SIKONG, Lek, Hitoshi HASHIMOTO, and Saburo YASHIMA. "Effective fine grinding of coal by a ball-race mill with grinding additives." Shigen-to-Sozai 107, no. 1 (1991): 41–46. http://dx.doi.org/10.2473/shigentosozai.107.41.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Camalan, Mahmut, and Çetin Hoşten. "Assessment of grinding additives for promoting chromite liberation." Minerals Engineering 136 (June 2019): 18–35. http://dx.doi.org/10.1016/j.mineng.2019.03.004.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Rao, R. Bhima, K. S. Narasimhan, and T. C. Rao. "Effect of additives on grinding of magnetite ore." Mining, Metallurgy & Exploration 8, no. 3 (August 1991): 144–51. http://dx.doi.org/10.1007/bf03402947.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Tian, Xin Li, Z. Y. Wu, and Zhong Xiang Hu. "Study on the High Efficiency Organic Grinding Fluid Used for Ceramic Grinding." Key Engineering Materials 280-283 (February 2007): 1787–90. http://dx.doi.org/10.4028/www.scientific.net/kem.280-283.1787.

Full text

Abstract:

Based on retrieval for domestic and international literatures about the grinding fluids special for ceramic machining use, this paper put forward a method to enhance the engineering ceramic grinding machining efficiency using the organic grinding fluid added with the long chain alcohol The experiment, performed on the constant force cutter, greatly increased the ceramic grinding efficiency by 2.4 times through the comparative experiment for several normal grinding fluids as well as by adding additives. In addition, this paper conducted the matter structural analysis for the liquid-solid interface using the Raman Spectrum technology and preliminarily discussed the mechanism of this grinding fluid.

APA, Harvard, Vancouver, ISO, and other styles

15

Mascitti, Andrea, Massimiliano Lupacchini, Ruben Guerra, Ilya Taydakov, Lucia Tonucci, Nicola d’Alessandro, Frederic Lamaty, Jean Martinez, and Evelina Colacino. "Poly(ethylene glycol)s as grinding additives in the mechanochemical preparation of highly functionalized 3,5-disubstituted hydantoins." Beilstein Journal of Organic Chemistry 13 (January 4, 2017): 19–25. http://dx.doi.org/10.3762/bjoc.13.3.

Full text

Abstract:

The mechanochemical preparation of highly functionalized 3,5-disubstituted hydantoins was investigated in the presence of various poly(ethylene) glycols (PEGs), as safe grinding assisting agents (liquid-assisted grinding, LAG). A comparative study under dry-grinding conditions was also performed. The results showed that the cyclization reaction was influenced by the amount of the PEG grinding agents. In general, cleaner reaction profiles were observed in the presence of PEGs, compared to dry-grinding procedures.

APA, Harvard, Vancouver, ISO, and other styles

16

Kaplan, Gökhan, Sadık Alper Yildizel, Selçuk Memiş, and Ali Uğur Öztürk. "The Optimization of Calcareous Fly Ash-Added Cement Containing Grinding Aids and Strength-Improving Additives." Advances in Civil Engineering 2018 (2018): 1–9. http://dx.doi.org/10.1155/2018/8917059.

Full text

Abstract:

This is an experimental study which explores the physical, mechanical, and economic factors involved in the production of type CEM II A-B/W cement. In this context, 4 cement additives were used in two different dosages (200 and 800 g/t). Class C fly ash was used for composite cement production at ratios of 5%, 20%, and 35%. It was shown that Blaine fineness increases with the increasing fly ash content. The use of fly ash at ratios of 5% and 20% was not found to have any unfavorable effects on the compressive strength at the early days. It is found that the use of additive for improving the early-age strength is preferable when fly ash is used. It is possible to produce Class 52.5 N cement using additives to improve early strength and 20% fly ash. Loss in strength was observed in cement mortars produced using glycol-based grinding aid. Increasing the dosage of chemical additive also led to loss in strength due to nonhomogeneous distribution of hydration products. As a result, grinding fly ash with clinker and the use of cement chemicals contribute to the cement sector in terms of sustainability. It is possible to produce cements with improved mechanical properties especially with the use of 20% fly ash.

APA, Harvard, Vancouver, ISO, and other styles

17

Mishra, Ratan K., Martin Weibel, Thomas Müller, Hendrik Heinz, and Robert J. Flatt. "Energy-effective Grinding of Inorganic Solids Using Organic Additives." CHIMIA International Journal for Chemistry 71, no. 7 (August 9, 2017): 451–60. http://dx.doi.org/10.2533/chimia.2017.451.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Fuerstenau, D. W., K. S. Venkataraman, and B. V. Velamakanni. "Effect of chemical additives on the dynamics of grinding media in wet ball mill grinding." International Journal of Mineral Processing 15, no. 4 (November 1985): 251–67. http://dx.doi.org/10.1016/0301-7516(85)90044-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Mestnikov, A. E., A. I. Kudyakov, and V. N. Rozhin. "PORTLAND CEMENT WITH NATURAL MINERAL ADDITIVES." Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture, no. 2 (April 29, 2019): 192–201. http://dx.doi.org/10.31675/1607-1859-2019-21-2-192-201.

Full text

Abstract:

One of the most effective developments of energy saving in the production of Portland cement used worldwide, is joint grinding of Portland cement clinker with injected mineral additives, such as pozzolanic rocks, ashes and slags.The aim of this work is to substantiate the possibility of the quality cement production using joint grinding of Portland cement clinker with natural mineral additives with a view to the of production location.River (quartz-feldspar) sands of the Lena basin and large-tonnage raw materials (zeolitecontaining rocks of the Khonguruu deposit) are considered as mineral additives to Portland cement. The study uses both standard test methods and the X-ray phase analysis for binders and concretes.The activity of the mineral additives to Portland cement is studied. The main properties of clinker, gypsum stone and mineral additives are studied to organize the production of quality Portland cement and products for the support of construction projects in the North-Eastern part of the Arctic and the North of Russia. The effect from additives and fineness of zeolitecontaining clinker and quartz-feldspar sand is studied relative to the thickness and setting time of the cement paste and cement mortar strength.It is shown that the types CEM II/A-P 32.5N and CEM II / A-P 42.5N Portland cement can be produced from imported Portland cement clinker and local mineral additives saving 5–15 % Portland cement clinker.

APA, Harvard, Vancouver, ISO, and other styles

20

Wang, Dan Dan, Xian Fu Wei, and Bei Qing Huang. "Research on the Adhension of Water-Based Ink on UV Varnish." Applied Mechanics and Materials 469 (November 2013): 26–29. http://dx.doi.org/10.4028/www.scientific.net/amm.469.26.

Full text

Abstract:

In order to enhance the adhension of ink, base ink was prepared with proper pigment and grinding resin, as well as dispersing agent, then compounded it and film-forming resin. The paper has studied the major factors, including grinding resin, film-forming resin and additives, which influenced the adhension of water-based ink on UV varnish. The results indicated that the content and the variety of grinding resin had a certain influence on the adhension of water-based ink. Besides, since the structure of film-forming resin is different, it has a significant effect on the adhension of water-based ink with the change of the variety of resin. Whats more, additives, which could decrease the surface tension of ink effectively and made the ink intend to adhere on UV varnish easily, is also an important factor that influences the adhension of the water-based ink on UV varnish.

APA, Harvard, Vancouver, ISO, and other styles

21

TOMITA, Susumu, and Hidemi SHIGEMATSU. "Influence on grinding ability of grinding fluid (2nd report, Action and effect of additives contained grinding fluid on working surface of grinding wheel during dressing." Transactions of the Japan Society of Mechanical Engineers Series C 51, no. 467 (1985): 1596–602. http://dx.doi.org/10.1299/kikaic.51.1596.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

HIGUCHI, Masatoshi, and Kazuhiko YOKOGAWA. "Effects of Additives on the Ability of Emulsion Grinding Fluid." Journal of the Japan Society for Precision Engineering 57, no. 12 (1991): 2181–86. http://dx.doi.org/10.2493/jjspe.57.2181.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

LIU, D. C., D. H. BIRLINGMAIR, L. E. BURKHART, and R. MARKUSZEWSKI. "Attrition Grinding of Coal in the Presence of Polymeric Additives." Coal Preparation 6, no. 3-4 (January 1989): 195–206. http://dx.doi.org/10.1080/07349348908960529.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Lapin, Anatoly A., Marina L. Kalaida, and Valery N. Zelenkov. "Supplements to amaranth feed for fish cultivation. Part 3. Justification of the physical and chemical characteristics of the components of wheat and amaranth herb using a biochemical indicator of total antioxidant activity." Butlerov Communications 61, no. 1 (January 31, 2020): 118–25. http://dx.doi.org/10.37952/roi-jbc-01/20-61-1-118.

Full text

Abstract:

Expanding research to find sources for new effective and environmentally friendly fish feed additives based on natural plant-based raw materials is a pressing agricultural concern Biotechnology. This is especially true because feed additives for fish farming, as opposed to the use of feed additives for farm animals, come into contact with the environment of reservoirs and, accordingly, can have a significant impact on the ecosystem water environment for all inhabitants of reservoirs for breeding fish as aquaculture. The article presents the results of a biochemical study of the total antioxidant activity of the developed feed additives based on the components of the grain of spring wheat (Triticum) of the Kazan Jubilee and amaranth herbs (Amaranthus cruentus L) Shuntuk varieties from the collection of the botanical garden of the All-Russian Research Institute of Medicinal and Aromatic Plants. We show that when applying the technological equipment for grinding the original components for the preparation of feed additives, the total antioxidant activity of the wheat and amaranth grain fractions after grinding depends on the degree of the grinding or from the variance of component particles after sowing on the Sith. It is shown that when preparing fish feed it is best to use wheat with the size of particles 0.25-0.4 mm, which corresponds to the maximum manifestation of the total antioxidant activity of the crushed grain. For the first time in the experiment revealed a synergistic effect on the manifestation of total antioxidant activity when adding protein-vitamin flour from dry amaranth herb to the crushed wheat grain with a maximum value of 4% of its content from the total mass Feed.

APA, Harvard, Vancouver, ISO, and other styles

25

Hasuda, Y., T. Kato, R. Meguriya, Y. Suzuki, S. Kinebuchi, T. Furusawa, and T. Ohashi. "Precision Grinding of High Chromium Steels Using Metal Bonded CBN Wheel." Advanced Materials Research 24-25 (September 2007): 171–76. http://dx.doi.org/10.4028/www.scientific.net/amr.24-25.171.

Full text

Abstract:

In this study, the influences of carbides and alloy additives on ground surface characteristics of several high Chromium (Cr) steels and abrasive grains of working surface were discussed. In the grinding using metal bonded CBN wheel, almost constant values in ground surface roughness and high grinding ratio were shown. 5% Cr steel with Vanadium, 8% Cr steel and 10% Cr steel showed a rougher surface than Cr steels with 3%, 4% and 5% due to the carbide inclusion. The grinding ratio of 5%Cr steel could be raised considerably by adding sulfur to it.

APA, Harvard, Vancouver, ISO, and other styles

26

Nosenko, V. A., N. D. Serdyukov, O. M. Shkoda, and P. I. Smarsky. "COOLANT TEST AT THE PROCESS OF FLAT INFEED GRINDING OF TITANIUM ALLOY." IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY, no. 8(243) (August 28, 2020): 40–43. http://dx.doi.org/10.35211/1990-5297-2020-8-243-40-43.

Full text

Abstract:

When grinding the VT9 titanium alloy, the following types of coolant were tested: an aqueous solution of sodium phosphate trisubstituted o, semi-synthetic with extreme pressure additives, synthetic universal and standard. The height and step parameters of the roughness of the treated surface, the grinding coefficient are determined. The correlation coefficients between these parameters are calculated. The differences in the morphology of the polished surface are shown.

APA, Harvard, Vancouver, ISO, and other styles

27

Фадин, Ю. М., Yuriy Fadin, П. Хахалев, Pavel Hahalev, Е. Трапезникова, and E. Trapeznikova. "MODERN TECHNOLOGIES OF MATERIALS FOR PROTECTION THE WORKING SURFACES OF HYDROCLONE AGAINST WEAR." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 4, no. 7 (July 21, 2019): 135–39. http://dx.doi.org/10.34031/article_5d35d0b65fa355.43100608.

Full text

Abstract:

The article considers the process of portland cement production by wet process. Portland cement is a hydraulic binder that is produced by cement clinker, gypsum and additives. Calcium silicates are commonly used as additives. Portland cement production consists of following processes: crushing of clinker and gypsum stone; preparation of mineral additives (crushing, drying); grinding of clinker with active mineral additives and gypsum; storage, packaging and shipping the cement to consumer. Since grinding is carried out in a closed cycle, it is necessary to select the classifying equipment. For this purpose, an analysis is made, which reveals that the hydrocyclone is the most multi-purpose and less expensive in operation of classifying equipment. The study of the hydrocyclone design demonstrates a significant drawback in the form of increased wear of the hydrocyclone working surfaces, which has an impact on durability and work efficiency. The degree of wear the hydrocyclone surfaces depends on the nature of the pulp impact and the mechanical characteristics of material of the hydrocyclone working surface. This article is devoted to the study of the most popular and frequently used wear-resistant materials to protect work surfaces from wear.

APA, Harvard, Vancouver, ISO, and other styles

28

Bednarikova, Vendula, David Jech, Lenka Klakurková, Ladislav Čelko, and Daniel Holemý. "Structure and Properties of Bakelite Bonded Grinding Wheels." Defect and Diffusion Forum 405 (November 2020): 139–44. http://dx.doi.org/10.4028/www.scientific.net/ddf.405.139.

Full text

Abstract:

The composition of each grinding wheel depends on the specific application, and nowadays, there are many types of grinding wheels on the market. Bakelite bonded grinding wheels are fast becoming the standard choice for grinding and finishing processes in automotive, aerospace and other special fields of industry. Increasing requirements on higher quality and lifetime push manufacture to continuous research and development in this field. From that reason, it is necessary to characterize the structure and properties of already produced commercial grinding tools. In this contribution, two in chemical composition identical bakelite bonded grinding wheels with different properties were studied. Processing parameter like compression force is the main factor resulting in either hard grinding wheel for machining soft materials or soft grinding wheel for machining hard materials. The main components of both grinding wheels are abrasive particles of brown alumina (Al2O3) and two bonding agents based on synthetic rubber and bakelite. In addition, grinding wheels contain additives, e.g. vulcanization accelerators, fillers etc. to improve functional properties of grinding wheel. Fractures and metallographic samples morphology was studied by scanning electron microscopy. Porosity of grinding wheels was estimated using image analysis. Hardness of binder and abrasive brown alumina particles was measured by Rockwell hardness test.

APA, Harvard, Vancouver, ISO, and other styles

29

Paramasivam, R., and R. Vedaraman. "Effects of the physical properties of liquid additives on dry grinding." Powder Technology 70, no. 1 (April 1992): 43–50. http://dx.doi.org/10.1016/0032-5910(92)85052-w.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Hasegawa, M., M. Kimata, M. Shimane, T. Shoji, and M. Tsuruta. "The effect of liquid additives on dry ultrafine grinding of quartz." Powder Technology 114, no. 1-3 (January 2001): 145–51. http://dx.doi.org/10.1016/s0032-5910(00)00290-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Abourahma, Heba, Jennifer M. Urban, Nicole Morozowich, and Benny Chan. "Examining the robustness of a theophylline cocrystal during grinding with additives." CrystEngComm 14, no. 19 (2012): 6163. http://dx.doi.org/10.1039/c2ce25495f.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Meyer, Daniel, and André Wagner. "Influence of metalworking fluid additives on the thermal conditions in grinding." CIRP Annals 65, no. 1 (2016): 313–16. http://dx.doi.org/10.1016/j.cirp.2016.04.016.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Ramesh, K., S. H. Yeo, Z. W. Zhong, and H. Huang. "Ecological grinding with chilled air as coolant." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 217, no. 3 (March 1, 2003): 409–19. http://dx.doi.org/10.1243/095440503321590569.

Full text

Abstract:

Compared with other machining processes, grinding consumes the highest specific energy. Therefore, the use of a water-based coolant is often necessary to overcome thermal damage, to impart better surface integrity and to achieve higher tool life. However, the presence of hazardous chemical additives in the coolant causes environmental problems. As a result, stringent government legislation is being imposed for coolant use and disposal, which could represent up to 7–17 per cent of the total machining cost. This paper reports the development of an ecologically friendly grinding technology that uses chilled air with a biodegradable oil and air mist to replace the conventional water-based coolant. A thermal energy equilibrium model that relates to the grinding energy, heat transfer and internal energy rise was used to discuss the grinding results. This model predicted the maximum material removal for chilled air grinding, which was in agreement with the experiments.

APA, Harvard, Vancouver, ISO, and other styles

34

Wang, Bin, Heng Zhen Dai, and Zhu Ji Jin. "Chemical Mechanical Grinding Wheel for K9 Optical Glass." Advanced Materials Research 712-715 (June 2013): 579–83. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.579.

Full text

Abstract:

Chemical mechanical grinding (CMG) was applied in machining K9 optical glass. Eight types of CMG wheels were developed and their dry grinding performances were analyzed. The specific CMG wheel which contained 28%vol.abrasive,20%vol.porous and certain additives obtained satisfied surface quality and material removal rate, as result that the solid state reaction and mechanical elimination reached equilibrium. The CMG process parameters, including pressure, workpiece speed and wheel speed, were optimized by using orthogonal experimental method. The surface roughness can reach 0.461nm in Ra on the basis of optimized processing parameters.

APA, Harvard, Vancouver, ISO, and other styles

35

Guo, Dong Ming, Y. B. Tian, Ren Ke Kang, Li Bo Zhou, and M. K. Lei. "Material Removal Mechanism of Chemo-Mechanical Grinding (CMG) of Si Wafer by Using Soft Abrasive Grinding Wheel (SAGW)." Key Engineering Materials 389-390 (September 2008): 459–64. http://dx.doi.org/10.4028/www.scientific.net/kem.389-390.459.

Full text

Abstract:

An innovative fixed abrasive grinding process of chemo-mechanical grinding (CMG) by using soft abrasive grinding wheel (SAGW) has been recently proposed to achieve a damage-free ground workpiece surface. The basic principle, ideas and characteristics of CMG with SAGW are briefly introduced in this paper. The CMG experiments using newly developed SAGW for Si wafer are conducted at the condition of dry grinding. The grinding performances are evaluated and analyzed in terms of surface roughness, surface topography and surface/subsurface damage of ground wafer by use of Zygo interferometer, Scan Introduction ning Electron Microscope (SEM) and Cross-section Transmission Electron Microscope (Cross-section TEM). The component of product of ground Si surface is studied by X-ray Photoelectron Spectroscopy (XPS) to verify chemical reaction between the abrasive / additives of grinding wheel and Si wafer. The CMG process model by using SAGW is developed to understand the material removal mechanism and generation principle of damage-free surface. The study results show that the material removal mechanism of CMG by using SAGW can be explained as a hybrid process of chemical and mechanical action.

APA, Harvard, Vancouver, ISO, and other styles

36

Konovalova, Natalia, Elena Rush, Dmitry Bespolitov, and Pavel Pankov. "Soil concrete based on waste of heat power engineering and siftings of rock grinding." E3S Web of Conferences 140 (2019): 05015. http://dx.doi.org/10.1051/e3sconf/201914005015.

Full text

Abstract:

The possibility of recycling large-tonnage waste of heat power engineer-ing and mining industry in road construction is shown. Compositions of road-building materials were researched, containing siftings of rock grinding, fly ash, Portland cement, modified with a stabilizing additive of polymeric nature. X-ray phase analysis showed availability of quartz in fly ash, calcite, feldspars, goethite and X-ray amorphous phase, what is consistent with the data of infrared spectroscopy. By atomic emission spectrometry with inductively coupled plasma it was revealed that fly ash is latent-active and can be disposed in compositions in the presence of a stabilizing additive. The X-ray phase analysis of grinding siftings showed that it contains quartz, feldspars, chlorite, calcite and dolomite. The specific activity of natural radionuclides (226Ra, 232Th, 40К) of fly ash and grinding siftings was 248 and 110 Bq/kg, which allows using such waste in construction without restrictions. It was revealed that the initial mineral raw materials belong to multiphase polymineral systems; therefore, when modifying them with stabilizing additives, binding of finely divided particles should be taken into account. It was revealed that the optimal content of Portland cement and fly ash in samples is 8 and 10 wt.%. It was found that an increase in the mass fraction of fly ash in the composition of soil-concrete up to 30 wt.% leads to softening of the samples and a decrease in their strength characteristics.

APA, Harvard, Vancouver, ISO, and other styles

37

Yang, Gai Xia, Lian Bin Zheng, Jia Zheng He, Wu Xie, and Dong Su. "Study on Applications of Water Soluble Grinding Fluids in Glass Processing with 3M^TM Trizact^TM Diamond Tile (TDT)." Key Engineering Materials 589-590 (October 2013): 269–74. http://dx.doi.org/10.4028/www.scientific.net/kem.589-590.269.

Full text

Abstract:

The water soluble grinding fluids (coolants) with 3MTM TrizactTM Diamond Tile（TDT）used in thinning process of the flat glass contains lubricants, extreme pressure antiwear agents, surfactants and anti-rust additives, which are expected to provide the functions of lubricating, cooling, cleaning, anti-rust. The results showed that the water soluble grinding fluids can improve the processing performance of 3M TDT effectively, keep excellent self-sharpening, increase processing efficiency, extend the service life of the abrasive pads and reduce surface roughness of the glass .

APA, Harvard, Vancouver, ISO, and other styles

38

TOMITA, Susumu, and Hidemi SHIGEMATSU. "Influence on grinding ability of grinding fluid (3rd report, Action and effect of extreme pressure additives on working surface of CBN wheels in grinding)." Transactions of the Japan Society of Mechanical Engineers Series C 51, no. 467 (1985): 1871–75. http://dx.doi.org/10.1299/kikaic.51.1871.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Dyachkova, L. N. "Features of the formation of the structure and properties of powder steels with additives that activate diffusion processes during sintering." Proceedings of the National Academy of Sciences of Belarus, Physical-Technical Series 65, no. 1 (April 6, 2020): 43–53. http://dx.doi.org/10.29235/1561-8358-2020-65-1-43-53.

Full text

Abstract:

Effect of activating the sintering process of powder steel alloyed with nickel or chromium by grinding the initial powders and introducing alkali metal compounds was investigated. The kinetics of grinding the initial iron powders, Cr30, and a mixture of iron powders with 4 % nickel was studied. It is shown that, depending on the hardness of the powder, it is grinded in three or two stages. When grinding more hard powders, there is no stage of intensive deformation of particles and an increase in their size. Crystalline lattice defects resulting from grinding of powders accelerate diffusion processes. This reduces sintering temperature by 100–200 °С compared to the sintering temperature of steels from the initial powders, contributes to a homogeneous structure, reduces porosity by 4–17 %, and increase strength of powder steels by 1.5–1.6 times. The mechanism of the effect of sodium bicarbonate on the acceleration of diffusion of carbon, nickel and chromium into iron has been established. With the introduction of sodium bicarbonate under the action of water vapor, formed upon its decomposition to carbonate, thin oxide films are formed on iron particles, which are actively recovered in a protective-recovering atmosphere during sintering. This leads to formation of a metal contact between the particles, acceleration of the self-diffusion of iron atoms and the diffusion of alloying additives into iron by 5–7 times, depending on the sintering temperature and the amount of added additive. Sodium forms nanodispersed complex compounds of the ferritic type Na3Fe5O9 along the grain boundaries of the iron base, which provide grain refinement and the formation of a homogeneous structure. Changes in the structure of powder steel with the introduction of sodium bicarbonate cause an increase in its strength by 1.5–1.7 times. The results can be used to obtain structural products from alloyed powder steels.

APA, Harvard, Vancouver, ISO, and other styles

40

Cajas, Paola Cristina, R. Muñoz, A. C. Rodríguez, J. E. Rodríguez-Páez, and C. R. M. da Silva. "Synthesis and Characterization of Zirconium Oxide Systems with Yttrium Rich Rare Earth Concentrate Additives." Materials Science Forum 798-799 (June 2014): 174–81. http://dx.doi.org/10.4028/www.scientific.net/msf.798-799.174.

Full text

Abstract:

In this work, the yttrium rich rare earth concentrate (Re2(CO3)3) was used as additive aiming stabilization of cubic an tetragonal phases at commercial zirconium oxide with 3% mol of yttrium oxide. The use of high purity rare earth oxide as additive is being commercially used and this work aims to demonstrate the potential use of lower cost additives to produce solid electrolyte for oxygen sensors and fuel cell applications. The powders for the additive production were synthesized by the controlled precipitation method. After synthesis, the powders were de-agglomerated using mechanical grinding and mixed to commercial zirconia to produce the compositions ZrO2:3% Mol Y2O3:ƞ % Mol Re2O3 (ƞ=3,4,5,6), followed by uniaxial press and sintering at 1500 0C in two hours. The obtained sintered densities were above 96% of theoretical. X-Ray diffractometric analysis and Rietweld refinement demonstrated the stabilization of cubic and tetragonal phases for all samples with yttrium rich rare earth concentrate additives. Finally the electric behavior of the evaluated samples was carried out with complex impedance spectroscopy, showing conductivity improvement for samples with the chosen additive. At 500 0C the sample A-9% had a conductivity of 1,11E-3Ω-1.cm-1, well above of the sample without additive with conductivity 5,88E-4Ω1.cm-1, indicative that use of yttrium rich rare earth concentrate as additive increases considerably the ionic conductivity of comercial zirconium oxide. Key words: rare earth concentrate, controlled precipitation, ionic conductivity

APA, Harvard, Vancouver, ISO, and other styles

41

Klimpel, R. R. "The selection of wet grinding chemical additives based on slurry rheology control." Powder Technology 105, no. 1-3 (November 1999): 430–35. http://dx.doi.org/10.1016/s0032-5910(99)00169-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Bobet, J. L., B. Chevalier, M. Y. Song, B. Darriet, and J. Etourneau. "Reactive mechanical grinding of magnesium in hydrogen and the effects of additives." Materials and Manufacturing Processes 17, no. 3 (June 27, 2002): 351–61. http://dx.doi.org/10.1081/amp-120005381.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Ni, Jing, Yongfeng Yang, and Can Wu. "Assessment of water-based fluids with additives in grinding disc cutting process." Journal of Cleaner Production 212 (March 2019): 593–601. http://dx.doi.org/10.1016/j.jclepro.2018.12.066.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Lou, Ning, Ioan D. Marinescu, and Michael C. Weismiller. "Investigation on Influences by Adapting Additives to Electrolytic In-Process Dressing (ELID) Grinding." Key Engineering Materials 447-448 (September 2010): 169–73. http://dx.doi.org/10.4028/www.scientific.net/kem.447-448.169.

Full text

Abstract:

As demand for high-quality machined tools considerably grows, ELID, a new and efficient technology, has been successfully brought into the precise manufacturing industry of hard and brittle materials with mirror surface finish. Hence, besides conventional functions like lubrication, fluid solutions in this grinding process are required to serve more functions, especially as electrolyte. Writers of this paper mainly work on the methodology to optimize this kind of fluid by adding various related chemical additives. By varying the pH, the accretion of additives is controlled and consequential effects are studied which is the metallic oxide layer variation before and after each test. Corresponding experiments have been carried out with procedures and results analysis included in the paper.

APA, Harvard, Vancouver, ISO, and other styles

45

Dementyev, V. B., and T. N. Ivanova. "Investigation of the Surface Layer Structure of High-Chromium and High-Strength Steels at the Variation of the Heating Temperature." Materials Science Forum 870 (September 2016): 431–36. http://dx.doi.org/10.4028/www.scientific.net/msf.870.431.

Full text

Abstract:

At present, hard-to-machine materials such as structural alloy steels with various chemical element additives – tungsten, chromium, etc. - are most widely used in engineering. When conventional finish methods are used for the treatment of hard-to-machine materials, the most important problems are the difficulty of obtaining work surfaces of a required quality in terms of accuracy, roughness and the physicochemical composition, and the low output. In the present paper, a finish method for metal treatment– grinding – is discussed. Zones of the formation of the surface stress state due to heating have been revealed: the zone of an insignificant increase in temperature in the contour of the contact of a grinding wheel and a work surface; the zone of the temperature intensive growth; and the zone of the temperature abrupt drop. The investigation has been conducted of the surface layer structure of high-strength and high-chromium steels during high-speed heating – grinding. The peculiarities of the change of the surface layer state of the above steels have been revealed after grinding with the use of conventional grinding wheels with a continuous cutting surface and a discontinuous cutting surface. Some recommendations are given for grinding of the high-strength 12Cr18Ni9 and high-chromium Cr12, Cr12Mo and Cr12V steels, taking into account the specific features of different technological situation characteristic of a specific grinding tool, a grinding tool grade, and conditions of grinding and cutting.

APA, Harvard, Vancouver, ISO, and other styles

46

TOMITA, Susumu, and Hidemi SHIGEMATSU. "The influence of grinding fluid on grinding ability (4th report, Action and effect of extreme pressure additives on working surface of diamond wheels in grinding)." Transactions of the Japan Society of Mechanical Engineers Series C 52, no. 477 (1986): 1633–36. http://dx.doi.org/10.1299/kikaic.52.1633.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Nishimura, Toshiyasu, Xin Xu, Naoto Hirosaki, K. Kimoto, Yoo Yamamoto, and Hiroaki Tanaka. "Effect of Aluminium on High-Energy Ball Milling and Spark Plasma Sintering of Silicon Nitride." Key Engineering Materials 287 (June 2005): 156–59. http://dx.doi.org/10.4028/www.scientific.net/kem.287.156.

Full text

Abstract:

A commercial silicon nitride powder with oxide sintering additives was ground with high-energy ball mill to obtain nano-sized powder. Metallic aluminium powder was added as a grinding additive. Effect of high-energy ball milling was evaluated by X-ray diffraction analysis. After milling, height of background increased and peak height of silicon nitride decreased in XRD chart, which suggested that vitrification and/or decrease in grain size of silicon nitride occurred. The milled powders were sintered by spark plasma sintering system. Aluminium nitride was formed during sintering by reaction of aluminium and atmospheric nitrogen. Dense nano-ceramics, which were composed of silicon nitride and sialon, were obtained by sintering at 1550 oC.

APA, Harvard, Vancouver, ISO, and other styles

48

Gawlik, Józef, Magdalena Niemczewska-Wójcik, Joanna Krajewska, Serghej V. Sokhan, E. A. Paščenko, and T. S. Žuk. "The Influence of Tool Composite's Structure During Process of Diamond Grinding of Ceramic Materials." Management and Production Engineering Review 5, no. 4 (December 10, 2014): 9–17. http://dx.doi.org/10.2478/mper-2014-0031.

Full text

Abstract:

Abstract This paper presents the results of the tests performed during the grinding process of the ceramic materials: – polycrystalline ceramics (Zirconium ZrO2) and mono-crystalline ceramics (sapphire α-Al2O3) by the diamond tools. Studies have shown that the concentration (thickening) of the tool composite changes the tool's pore structure when using suitable wetted adamantine additives. Such modified composite has positive impact on tribological properties of the subsurface layer of the machined components. This is manifested by the reduction of the surface roughness and reduction of the vibration amplitude of the coefficient of friction. The possibilities of the positive effects when using wetted additives on the tool's composite during the pressing (briquetting) stage confirm the study results.

APA, Harvard, Vancouver, ISO, and other styles

49

Kostetska, K., I. Ulianych, V. Zheliezna, and M. Holubiev. "Engineering in the technology of manufacture of extruded feed additives." UKRAINIAN BLACK SEA REGION AGRARIAN SCIENCE 109, no. 1 (2021): 44–52. http://dx.doi.org/10.31521/2313-092x/2021-1(109)-6.

Full text

Abstract:

Engineering in the technology of manufacture of extruded feed additives The aim of the work was to expand the range of animal feed and improve the technology of production of extruded feed mixture. Technology of use of preliminary preparation of raw materials: cleaning, reduction of quantity, its dosing according to the recipe, change and special means for improvement of technological authorities and increase of fodder value from processes: preliminary mixing, settling and extrusion of the mixture, cooling and grinding of the product depending on the purpose of the fodder Keywords: grain, fruit and vegetable raw materials, feed additives, extrusion technology, engineering.

APA, Harvard, Vancouver, ISO, and other styles

50

Toleuova, Ainagul, Gulnaz Musina, and Saule Kaldybayeva. "Modifying and Micro-Alloying Effect on Carbon Steels Microstructure." Solid State Phenomena 316 (April 2021): 359–63. http://dx.doi.org/10.4028/www.scientific.net/ssp.316.359.

Full text

Abstract:

Small additives of elements exhibiting high chemical activity with respect to iron and impurities, included in its composition, have a complex effect on the structure and properties of steel. Moreover, as a result of the modifying and refining effect of micro-additives, the amount, dispersion and morphology of nonmetallic inclusions change, and when alloying the matrix, hardenability, uniformity of structure and resistance to brittle fracture of steels change, too. The article presents a metallographic analysis of carbon steel deoxidized by a complex Са – Ва alloy. Deoxidation of steel using the complex Са – Ва alloy allows significant reducing the content of nonmetallic inclusions, modifying residual nonmetallic inclusions into favorable complexes with their uniform distribution in the volume of steel, and significant increasing the mechanical properties of steel. The high surface activity of barium makes it possible to consider barium as a rather effective modifier. The use of barium in alloys leads to grinding of non-metallic inclusions, homogenization of liquid metal, lowering the liquidus temperature, grinding of primary grains of cast steel, and increasing technological ductility.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!