A kind of cubic boron nitride grinding wheel and its preparation method

A cubic boron nitride and grinding wheel technology, applied in the field of grinding wheels, can solve the problems of not being able to grind workpieces of different materials at the same time, not being able to grind workpieces of various materials at the same time, and not being able to process workpieces of various materials, etc., to achieve high Grinding efficiency and workpiece surface quality, easy to realize, high surface activity effect

Active Publication Date: 2017-08-25
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

However, the existing grinding wheel products can only be used for grinding workpieces of a single material, and do not have the grinding performance that can be used for grinding workpieces of various materials
The existing resin grinding wheel products can respectively meet the grinding processing requirements of the compressor diaphragm (material cast iron), blade (material high-speed steel), sliding vane (material stainless steel), bearing ring (material bearing steel), but one The grinding wheel cannot grind workpieces of various materials at the same time, and it is not "universal"
[0003] Chinese patent CN202010956U discloses a vitrified bonded cubic boron nitride grinding disc for grinding flat and thin-sheet alloy steel workpieces, which solves the problems of high efficiency, high precision, large diameter, and large-scale grinding. However, this grinding disc It is still not possible to grind workpieces of different materials at the same time, and it is not universal
However, in the manufacturing process of parts, it is usually necessary to grind workpieces of different materials, and the replacement of grinding wheels for workpieces of different materials consumes a lot of time and labor costs.
Therefore, a kind of high "universality" is developed, which can meet the grinding requirements of workpieces of three or more materials at the same time, and ensure that the workpieces of different materials to be ground have good surface quality and high processing efficiency, and have relatively high Grinding wheels with high durability and service life, thus solving the problem that a pair of grinding wheels and discs in the current parts production line cannot process workpieces of various materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The cubic boron nitride grinding wheel of this embodiment is made of the following raw materials in mass percentage: phenolic resin powder 25%, cubic boron nitride abrasive 18%, chromium oxide 15%, silicon carbide 12%, polyaluminosilicate calcium 30% %;

[0024] The preparation method of the cubic boron nitride grinding wheel of the present embodiment, the specific operation steps are:

[0025] 1) Weigh phenolic resin powder, cubic boron nitride abrasive, chromium oxide, zinc oxide, graphite, silicon carbide and calcium polyaluminosilicate and mix to obtain the mixture;

[0026] 2) Add the mixture prepared in step 1) into the grinding wheel mold, and use a hot press to press and form at a pressure of 8 MPa and a temperature of 185° C. to obtain a grinding wheel blank;

[0027] 3) The end surface of the abrasive layer is trimmed on the grinding wheel blank, and the outer circle of the grinding wheel is trimmed to obtain a cubic boron nitride grinding wheel.

Embodiment 2

[0029] The cubic boron nitride grinding wheel of this embodiment is made of the following raw materials in mass percentage: 30% of phenolic resin powder, 5% of cubic boron nitride abrasive, 60% of silicon carbide, and 5% of calcium polyaluminosilicate;

[0030] Among them, the cubic boron nitride abrasive is a mixture of FNK800 with a particle size of 80 mesh and FM B1500 with a particle size of 100 mesh; among them, FNK800 was purchased from Funike Superhard Materials Co., Ltd.; FM B1500 was purchased from Henan Feimeng Superhard Materials Ltd.

[0031] The preparation method of the cubic boron nitride grinding wheel of the present embodiment, the specific operation steps are:

[0032] 1) Weigh phenolic resin powder, cubic boron nitride abrasive, chromium oxide, zinc oxide, graphite, silicon carbide and calcium polyaluminosilicate and mix to obtain the mixture;

[0033] 2) Add the mixture prepared in step 1) into the grinding wheel mold, and use a hot press to press and form...

Embodiment 3

[0036] The cubic boron nitride emery wheel of this embodiment is made of the following raw materials in mass percentage: phenolic resin powder 60%, cubic boron nitride abrasive 5%, chromium oxide 4%, zinc oxide 4%, graphite 10%, silicon carbide 12%, calcium polyaluminosilicate 5%;

[0037] The cubic boron nitride abrasive is a mixture of bare material and plating material; the bare material is a mixture of FNK800 with a particle size of 80 mesh and cubic boron nitride with a particle size of 100 mesh FM B1500; among them, FNK800 was purchased from Fu Nike Superhard Materials Co., Ltd. Company; FM B1500 was purchased from Henan Feimeng Superhard Materials Co., Ltd.; the plating material is a cubic boron nitride abrasive that shows a nickel layer.

[0038] The preparation method of the cubic boron nitride grinding wheel of the present embodiment, the specific operation steps are:

[0039] 1) Weigh phenolic resin powder, cubic boron nitride abrasive, chromium oxide, zinc oxide, ...

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Abstract

The invention discloses a cubic boron nitride grinding wheel and a manufacturing method for the cubic boron nitride grinding wheel and belongs to the technical field of grinding wheels. The cubic boron nitride grinding wheel is prepared from the following raw materials: phenolic resin powder, cubic boron nitride, chromic oxide, zinc oxide, graphite, silicon carbide and polysilicate aluminous calcium. The polysilicate aluminous calcium serving as an inorganic high polymer material is added into the raw material, is high in mechanical strength, high in surface activity with grinding material, high in interface energy effect and high in infiltration, is capable of fully covering the grinding material and improving the holding strength of the phenolic resin powder on the grinding material, and is also capable of permeating into the cracks of the grinding material with cracks to repair the grinding material and improving the performance of the grinding material, so that the grinding wheel is high in self-sharpening performance and can be used for simultaneously grinding steel alloy parts with different hardness. The cubic boron nitride grinding wheel is high in grinding efficiency, high in workpiece surface quality and stable in product quality during the grinding of the steel alloy parts with different hardness. The manufacturing method for the cubic boron nitride grinding wheel is simple in process and convenient to implement, and is suitable for industrial popularization and application.

Description

technical field [0001] The invention belongs to the technical field of grinding wheels, and in particular relates to a cubic boron nitride grinding wheel and a preparation method thereof. Background technique [0002] With the rapid development of China's machinery manufacturing industry, cubic boron nitride (CBN) grinding wheels are increasingly used in domestic compressor parts, hydraulic parts, seals, and various parts in automobile engines, gearboxes, steering pumps, etc. Face grinding. Workpiece materials include cast iron, stainless steel, bearing steel, high-speed steel, iron-based powder metallurgy and other material types. These workpieces of different materials have different requirements on the grinding performance of the end grinding wheel. The universality of the grinding wheel refers to the use of the same The grinding wheel produced by formula and process has the ability to be used for grinding workpieces of three or more different materials, and has high dur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D3/14B24D3/34B24D18/00C04B26/10
CPCB24D3/14B24D3/34B24D18/0009C04B26/10
Inventor 赵秀香史林峰李克华
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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