Device for Determination of the Surface Hardness of Abrasive Tools

Kryukov, S. A.; Baydakova, N. V.

doi:10.26896/1028-6861-2017-83-11-62-65

Cited by 2 publications

(2 citation statements)

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“…The development of the direction associated with the optimization of sand formulations and granulometric compositions is quite widely reflected in domestic and foreign scientific works [12,13,18].…”

Section: Research Questionsmentioning

confidence: 99%

“…The most vulnerable places in the structure of an abrasive tool are the areas between the grains of abrasive particles and the binder component (so-called "bridges"). Cracks arising in the structure of the shard develop along easier trajectories, bypassing the abrasive grains of the main component and propagating to the "bridges", destroying the inner cavity of the tool shard [13].…”

Section: Research Questionsmentioning

confidence: 99%

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On the issue of designing and creation of a composite grinding wheels of increased productivity for rails treatment

Maksimov,

Galanskiy,

Zolkin

et al. 2024

J. Phys.: Conf. Ser.

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The article discusses the technological aspects of the development and design of composite modified wheels used in the mechanical treatment of railway rails. It allows to increase the productivity of treatment and tool durability. An increase in the physical and mechanical features of the shard of abrasive wheels can be achieved by modifying the binder component in the composition of the ceramic charge mixture with a nanomodifier such as carbon tubes. As a result of the modification of the abrasive composition of the charge mixture, it was possible to achieve an effective performance of railway rails treatment without a significant loss in the durability of the composite grinding wheel.

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Section: Research Questionsmentioning

confidence: 99%

Section: Research Questionsmentioning

confidence: 99%

On the issue of designing and creation of a composite grinding wheels of increased productivity for rails treatment

Maksimov,

Galanskiy,

Zolkin

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

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Effect of Thermochemical Treatment on the Structure and Mechanical Properties of Materials Based on Aluminum Oxide

Михайлов

Lonzinger

Skotnikov

2018

SSP

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According to the standard process, normal electrocorundum is heat treated at 700°C in a rotating drum followed by air cooling. Such heat treatment increases the strength characteristics of abrasive grain. When abrasive paper made from grains with reduced brittleness is working, the effect of reducing the cutting ability due to damage and failure of the cutting surfaces is observed. An increase in the performance characteristics of the abrasive paper was studied by improving the self-sharpening of the grain. Improvement of this performance is achieved by thermochemical treatment in a regulated gas atmosphere and cooling according to a special schedule. Normal electrocorundum during heat treatment in an oxidizing atmosphere changes the structural characteristics due to the decomposition of a solid solution of Ti2O3 in α-Al2O3 by oxidation to TiO2. The formation of a block grain structure with microcracks increases the probability of chipping during the grinding tool operation and the appearance of new cutting surfaces.

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Device for Determination of the Surface Hardness of Abrasive Tools

Cited by 2 publications

References 0 publications

On the issue of designing and creation of a composite grinding wheels of increased productivity for rails treatment

On the issue of designing and creation of a composite grinding wheels of increased productivity for rails treatment

Effect of Thermochemical Treatment on the Structure and Mechanical Properties of Materials Based on Aluminum Oxide

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