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Rail grinding wheel with low grinding smoke and preparation method thereof

A grinding wheel and grinding technology, used in grinding/polishing equipment, grinding devices, abrasives, etc., can solve problems such as inability to eradicate system pollution, and achieve the effect of improving grinding sharpness, high wear resistance, and preventing burns

Active Publication Date: 2016-01-13
江苏新砺河磨具科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In caves and subway tunnels, frequent bursts of dust were blown up by passenger trains to and fro, and the pollution in the system could not be eradicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0042] A method for preparing a steel rail grinding wheel with low grinding smoke and dust, the preparation steps are as follows: 1. Prepare abrasives. Fully mix 90% of the zirconium corundum abrasive and 10% of the white corundum abrasive to obtain the abrasive by weight percentage. 2. Configure the binder. 40% of wollastonite powder, 20% of kyanite powder and 40% of phenolic resin powder are mixed uniformly by dry method, and the binding agent is obtained by weight percentage. 3. Mixing. First use furfural to evenly wet the abrasive, the weight ratio of furfural to abrasive is 1:100, take 78% of abrasive and 22% of binder and mix evenly, calculated by weight percentage. The sum of converted wollastonite powder and kyanite powder weight accounts for 13.2% of the weight of the grinding wheel. 4. Forming. Put the mixture into the mold, hot press at 180°C for 35-40 minutes, and then release the mold to obtain a grinding wheel blank. 5. Dry. The grinding wheel blank is hard...

Embodiment 2

[0046] A method for preparing a steel rail grinding wheel with low grinding smoke and dust, the preparation steps are as follows: 1. Prepare abrasives. 94% of the zirconium corundum abrasive and 6% of the white corundum abrasive were fully mixed evenly, and the abrasive was obtained by weight percentage. 2. Configure the binder. 32% of wollastonite powder, 25% of kyanite powder and 43% of phenolic resin powder are mixed uniformly by dry method, and the binding agent is obtained by weight percentage. 3. Mixing. Wet the abrasive evenly with furfural first, the weight ratio of furfural to abrasive is 1:100. Take 82% of the abrasive material and 18% of the bonding agent and mix uniformly, calculated by weight percentage, and mix uniformly, calculated by weight percentage. The sum of converted wollastonite powder and kyanite powder weight accounts for 10.26% of the weight of the grinding wheel. 4. Forming. Put the mixture into the mold, hot press at 180°C for 35-40 minutes, an...

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Abstract

The invention discloses a steel rail grinding wheel allowing less grinding smoke and dust and a production method thereof. According to the production method of the steel rail grinding wheel allowing the less grinding smoke and dust, cyanite powders and wollastonite powders are used to replace the ferrous sulfide mineral powder filler of an original grinding wheel; the cyanite powders and the wollastonite powders are served as the filler to be uniformly combined together to form into the binding agent which guarantees the intensity of grinding wheel; sulfur-containing harmful gases are not generated during the grinding process and the intensity of the grinding wheel is greatly improved due to the fact that the cyanite powders and the wollastonite powders are served as the filler of the grinding wheel; the grinding sharpness of the grinding wheel is remarkably improved, steel rail surface burn caused by grinding is effectively avoided, and the operation of the production method is convenient due to the fact that a small amount of white corundum and fused zirconia alumina are mixed to be used.

Description

technical field [0001] The invention relates to a preparation method of a steel rail grinding wheel and a preparation method thereof, in particular to a steel rail grinding wheel with low grinding dust and a preparation method thereof. Background technique [0002] In the process of grinding the rail on the railway line with the grinding wheel, the rail grinding dust and the abrasive scattered particles consumed by the grinding wheel are generated. At the same time, the binder containing filler is added during the preparation of the grinding wheel, and smoke is formed due to the damage of the grinding heat. , and with the consumption of the grinding surface, it is scattered around the grinding area. On modern large-scale rail grinding trains, when nearly a hundred grinding wheels grind the rail surfaces on both sides at a speed of 3 m / s at the same time, a cloud of smoke and dust that cannot be completely extracted by the vacuum cleaner under the train is formed, following t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D3/28B24D3/34B24D18/00
Inventor 仲怀民袁春晓
Owner 江苏新砺河磨具科技有限公司
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