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Composite matrix material for grinding wheel, preparation method and grinding wheel

A technology of base material and grinding wheel, applied in the field of grinding wheel, can solve the problems of low bonding strength and self-consumption, damage to the processed workpiece, etc., and achieve the effects of not easy to disengage the ring or block, reduce the cost of the base body, and enhance the bonding force.

Active Publication Date: 2017-08-29
ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a composite matrix material for grinding wheels, which solves the problems of low bonding strength between the matrix of the existing superabrasive grinding wheel and the abrasive layer, no self-consumption effect, and easy damage to the workpiece

Method used

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  • Composite matrix material for grinding wheel, preparation method and grinding wheel
  • Composite matrix material for grinding wheel, preparation method and grinding wheel
  • Composite matrix material for grinding wheel, preparation method and grinding wheel

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Embodiment 1

[0045] The composite base material for the grinding wheel of the present embodiment comprises the following components in mass percent:

[0046]

[0047] The preparation method of the composite base material for the emery wheel of the present embodiment comprises the following steps:

[0048] 1) Take γ-aminopropyltriethoxysilane (KH550), dilute it with water according to the dilution ratio of 1:100, spray it on the surface of brown corundum dust in mist form, mix it evenly, and place it in a blast oven at 80°C Dry for 12 hours, sieve to obtain mixed powder A;

[0049] 2) Take the thermosetting polyimide resin powder, copper powder and the mixed powder A obtained in step 1) in the formula amount, place them in a mixer, mix and disperse for 2 hours until they are evenly mixed, and then get the mixed powder B;

[0050] 3) Select the matrix mold according to the shape and specification of the grinding wheel, put the mixed powder B obtained in step 2) into the mold, scrape it fla...

Embodiment 2

[0058] The composite base material for the grinding wheel of the present embodiment comprises the following components in mass percent:

[0059]

[0060] The preparation method of the composite base material for the emery wheel of the present embodiment comprises the following steps:

[0061] 1) Take γ-(2,3-glycidyloxypropoxy)propyltrimethoxysilane (KH560), dilute it with water according to the dilution ratio of 1:120, spray it on the surface of brown corundum dust in mist form, and mix it evenly. Dry in a blast oven at 100°C for 8 hours, and sieve to obtain mixed powder A;

[0062] 2) Take the thermosetting polyimide resin powder, copper powder and the mixed powder A obtained in step 1) in the formula amount, put them in a mixer, mix and disperse for 2 hours until they are evenly mixed, and then get the mixed powder B;

[0063] 3) Select the matrix mold according to the shape and specification of the grinding wheel, put the mixed powder B obtained in step 2) into the mold...

Embodiment 3

[0071] The composite base material for the grinding wheel of the present embodiment comprises the following components in mass percent:

[0072]

[0073] The preparation method of the composite base material for the emery wheel of the present embodiment comprises the following steps:

[0074] 1) Take γ-(methacryloyloxy)propyltrimethoxysilane (KH570), dilute it with water according to the dilution ratio of 1:150, spray it on the surface of brown corundum dust in the form of mist, mix it evenly, and place it at 90 Dry in a blast oven at ℃ for 10 hours, and sieve to obtain mixed powder A;

[0075] 2) Take the thermosetting polyimide resin powder, iron powder and the mixed powder A obtained in step 1) in the formula amount, put them in a mixer, mix and disperse for 2 hours until they are evenly mixed, and then get the mixed powder B;

[0076] 3) Select the matrix mold according to the shape and specification of the grinding wheel, put the mixed powder B obtained in step 2) int...

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Abstract

The invention discloses a composite matrix material for a grinding wheel, a preparation method and a grinding wheel. The composite matrix material comprises, by mass, 30% to 60% of brown corundum ash, 25% to 55% of polyimide resin, 10% to 20% of metal additives and 0.2% to 2% of silane coupling agents. According to the composite matrix material for the grinding wheel, the matrix material comprises recovered materials which are the same as or are similar to a grinding material layer in composition and are obtained in production of polyimide resin and brown fused alumina, the interface between a matrix and the grinding material layer is good in compatibility and high in bonding strength, and decyclization or chip off-falling is not likely to be caused on the grinding material layer; the self-consumption effect is achieved, the composite matrix material can be disengaged like the grinding material layer under the effect of grinding force when making contact with a workpiece, the workpiece will not be damaged, and the grinding quality of the grinding wheel can be improved; the composite matrix material is used for the polyimide resin binder grinding wheel, and has the effects of being resistant to pressure, reducing vibration and improving the machining quality of the grinding wheel.

Description

technical field [0001] The invention belongs to the technical field of grinding wheels, and in particular relates to a composite matrix material for grinding wheels, and also relates to a preparation method of the composite matrix material for grinding wheels and a grinding wheel using the matrix material. Background technique [0002] Grinding wheel refers to a consolidated abrasive tool with a through hole in the center made of abrasives and binders. It is the most widely used abrasive tool and it rotates at high speed when used. It is suitable for processing various metals and non-metallic materials. There are many types of grinding wheels, and different grinding wheels can be used for rough grinding, semi-finishing and fine grinding, as well as cutting and grooving of the outer circle, inner circle, plane and various profiles of the workpiece. According to the different abrasives used, grinding wheels are divided into two types: ordinary abrasive (corundum and silicon c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D3/02B24D3/34B24D18/00C09K3/14
CPCB24D3/001B24D3/28B24D3/34B24D18/0009C09K3/14
Inventor 赵延军张高亮刘权威王礼华
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD