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Metal resin composite material grinding wheel special for steel rail grinding and manufacturing method thereof

A technology of metal resin and composite materials, which is applied in the field of grinding wheels, can solve the problems of low rail material removal efficiency, fast consumption of grinding edges, and short service life of grinding wheels, so as to reduce burn bluing, reduce grinding heat, good surface quality

Pending Publication Date: 2018-07-06
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

Due to the weak holding force of the resin bond on the abrasive, the abrasive is easy to fall off, resulting in a short service life of the grinding wheel; at the same time, under the high-speed and heavy-load grinding conditions of the corundum abrasive, the grinding edge is consumed quickly and is easy to passivate, resulting in a long-term wear of the grinding wheel. Not sharp enough during use, resulting in high grinding heat, resulting in low removal efficiency of rail material, poor surface quality of rail grinding, and extremely prone to burn bluing

Method used

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  • Metal resin composite material grinding wheel special for steel rail grinding and manufacturing method thereof
  • Metal resin composite material grinding wheel special for steel rail grinding and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Weigh the CBN abrasive with a mass ratio of 40%, and the abrasive concentration is 0.88g / cm 3, the mass proportion is 55% Cu-Sn-Ti alloy solder powder, the mass proportion is 5% HBN powder, and 3% liquid paraffin forming agent of the total mass of the mixture is added. The brazed CBN sintered block 3 was prepared according to the above steps. Brazed CBN grinding block 3 has a bottom surface radius of 5mm and a height of 50mm.

[0041] Then select the phenolic resin binder and the zirconium corundum abrasive to mix, and the mass ratio of the modified phenolic resin is 18%; the particle size is selected to be 14-16 mesh zirconium corundum as the abrasive, and the mass ratio is 82%, and the zirconium corundum abrasive is uniformly wetted with furfural first, and then Then add a resin bond, mix the materials, and mix evenly to prepare the resin bond zirconium corundum abrasive 4.

[0042] There are 12 brazing CBN sintered blocks 3, which are distributed equiangularly over...

Embodiment 2

[0044] Weigh the CBN abrasive with a mass ratio of 30%, and the abrasive concentration is 0.66g / cm 3 , the mass proportion of Cu-Sn-Ti alloy solder powder is 62.5%, and the mass proportion of HBN powder is 7.5%. And add 3% liquid paraffin forming agent of the total mass of the mixture. The brazed CBN sintered block 3 was prepared according to the above steps. Brazed CBN grinding block has a bottom radius of 5mm and a height of 50mm.

[0045] Then choose modified phenolic resin (phenolic resin binder) and zirconium corundum abrasive to mix, the mass ratio of modified phenolic resin is 22%; choose zirconium corundum with a particle size of 14-16 mesh as the abrasive, and the mass ratio is 78, first use furfural to evenly wet Zirconium corundum abrasive, and then add a resin bond, mix the materials, mix evenly, and prepare the resin bond zirconium corundum abrasive 4.

[0046] There are 12 brazed CBN sintered blocks 3, which are equiangularly distributed over the entire circum...

Embodiment 3

[0048] Weigh the mass of CBN abrasive as 40%, and the abrasive concentration is 0.88g / cm 3 , the mass proportion of Cu-Sn-Ti alloy solder powder is 55%, and the mass proportion of HBN powder is 5%. And add 3% liquid paraffin forming agent of the total mass of the mixture. The brazed CBN sintered block 3 was prepared according to the above steps. The brazed CBN grinding block has a bottom radius of 10mm and a height of 70mm.

[0049] Then choose modified phenolic resin (phenolic resin binder) and zirconium corundum abrasive to mix, the mass ratio of modified phenolic resin is 20%; choose zirconium corundum with a particle size of 14-16 mesh as abrasive, and the mass ratio is 80%, first use furfural to uniform Wet the zirconium corundum abrasive, and then add the resin bond, mix the materials, mix evenly, and prepare the resin bond zirconium corundum abrasive 4.

[0050] There are 24 brazing CBN sintered blocks 3, which are distributed equiangularly over the entire circumfere...

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Abstract

The invention discloses a metal resin composite material grinding wheel special for steel rail grinding and a manufacturing method thereof, and belongs to the technical field of grinding wheels. The metal resin composite material grinding wheel comprises a base body and a grinding wheel working layer at the upper end of the base body. The grinding wheel working layer comprises brazed CBN agglomerates and resin bond zirconia corundum abrasives; and the brazed CBN agglomerates are cylindrical brazed CBN grinding blocks, and the round surfaces of the brazed CBN agglomerates are grinding surfaces.The brazed CBN agglomerates are evenly and vertically inserted into the resin bond zirconia corundum abrasives at intervals. The metal resin composite material grinding wheel special for steel rail grinding can maintain good sharpness under long time working conditions, generates less grinding heat, improves the removal efficiency of steel rail materials, and reduces the bluing phenomenon of therail burn; and the ground steel rail has better surface quality, lower roughness and finer rail surface.

Description

technical field [0001] The invention belongs to the technical field of grinding wheels, and relates to a grinding tool, in particular to a special metal resin composite material grinding wheel for rail grinding and a manufacturing method thereof. Background technique [0002] In the process of continuous advancement of my country's social economy, railways have always been the most important infrastructure of the country and the main artery of the national economy. Especially in recent years, with the rapid development of high-speed railways, railway construction has occupied a dominant position in my country's comprehensive transportation system. The rail is the carrier of all railway running equipment. It directly contacts the train wheel and bears the wheel load from the upper part. It is very prone to damage, such as corrugation, cracks, fat edges, crushing, pitting, etc., endangering the running Safety. In order to avoid the impact of these diseases on driving safety, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D7/14B24D18/00
CPCB24D7/14B24D18/0009
Inventor 仲怀民肖皓中肖博吴恒恒肖冰
Owner 江苏新砺河磨具科技有限公司
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