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Manufacture formula of rail grinding wheel and manufacture method thereof

A grinding wheel and rail technology, which is applied in the field of grinding wheels to achieve the effect of good self-sharpening performance, strong strength and not easy to break

Inactive Publication Date: 2014-07-23
李冰湜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above problems, the object of the present invention is to provide a rail grinding wheel with better self-sharpening performance and grinding performance, higher cutting efficiency, and less prone to burns and cracks on the rail during the grinding process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment discloses a preparation formula for rail grinding wheel, which is made of the following components, and its weight fraction ratio is: 70 parts of zirconium corundum, 5 parts of iron sulfide powder, 4 parts of cryolite, 1 part of calcium carbonate, gypsum 1 part of powder and 7 parts of phenolic resin are mixed according to the aforementioned production process, sintered, wound, dried and hardened to shape. In order to make the produced grinding wheel stronger in cutting force, the zirconium corundum with a grain size of 14-16 meshes is selected.

Embodiment 2

[0037] This embodiment discloses a preparation formula of a rail grinding wheel, which is made of the following components, and its weight fraction ratio is: 100 parts of zirconium corundum, 8 parts of iron sulfide powder, 8 parts of cryolite, 3 parts of calcium carbonate, gypsum 4 parts of powder and 10 parts of phenolic resin are mixed according to the above-mentioned production process, sintered, wound, dried and hardened to shape. In order to make the produced grinding wheel stronger in cutting force, the zirconium corundum with a grain size of 14-16 meshes is selected.

Embodiment 3

[0039] As the best embodiment of the present invention, it is made of the following components, and its weight fraction ratio is: 85 parts of zirconium corundum, 6.5 parts of iron sulfide powder, 6 parts of cryolite, 2 parts of calcium carbonate, 2 parts of gypsum powder, phenolic 8.5 parts of resin, mixed, sintered, wound and dried and hardened according to the aforementioned production process. In order to make the produced grinding wheel stronger in cutting force, the zirconium corundum with a grain size of 14-16 meshes is selected.

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PUM

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Abstract

The invention relates to a wheel, in particular to a rail grinding wheel, which is formed by mixing, sintering, wrapping, drying and hardening the following components in parts by weight: 70-100 parts of zirconia alumina, 5-8 parts of vulcanized iron powder, 4-8 parts of cryolite, 1-3 parts of calcium carbonate, 1-4 parts of gypsum powder and 7-10 parts of phenolic resin. In the invention, the zirconia alumina is selected as the main material of the rail grinding wheel and the vulcanized iron powder, the cryolite, the calcium carbonate, the gypsum powder and the phenolic resin for heat rejection, heat conduction and reinforcement are added on condition that the cutting force is ensured. The wheel manufactured by the invention not only has the advantages of better self-sharpening performance and grinding performance, higher cutting efficiency and low frequency of burn and crackle when a rail is grinded via the wheel, but also has the advantages of higher strength and good breakage proofness.

Description

technical field [0001] The invention relates to a grinding wheel, in particular to a formula for making a grinding wheel for rail grinding and a manufacturing method thereof. Background technique [0002] The steel rail is the main component of the railway track. Its function is to guide the wheels of the rolling stock, withstand the huge pressure of the wheels, and transmit them to the sleepers. The steel rail must provide a continuous, smooth and least resistance rolling surface for the wheels. [0003] Now, railway trains are all developing towards high speed, and the running speed is constantly increased. In order to make the trains run safely at high speed, one is to change the performance of the locomotive, and the other is to ensure that the rails are intact. The rails change due to factors such as high speed, heavy pressure, wind, rain, sand and dust, and phenomena such as edge pushing, wear, and corrosion occur, which makes it difficult to ensure the stability and s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/14B24D3/28B24D18/00
Inventor 李冰湜
Owner 李冰湜