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Diamond honing oilstone and preparation method thereof

A honing oil stone and diamond technology, which is applied in the field of diamond honing oil stone and its preparation, can solve the problems of substandard surface roughness, low cylindricity, poor straightness, etc., and achieve the effects of sufficient wrapping, high ductility, and improved heat dissipation performance

Active Publication Date: 2016-12-14
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

[0007] The present invention provides a diamond honing oil stone and its preparation method in view of the defects in the prior art. The oil stone produced by the invention solves the problem of low cylindricity and poor straightness of the hydraulic cylinder barrel honing oil stone processing hydraulic cylinder cylinders currently. , the surface roughness is not up to standard, and there are problems such as burns, burrs, and surface scratches on the inner hole of the hydraulic cylinder, while improving the hardness, shape retention and service life of the oil stone

Method used

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  • Diamond honing oilstone and preparation method thereof
  • Diamond honing oilstone and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A diamond honing oil stone is made of the following raw materials in weight percent: 5% to 10% of diamond micropowder with a particle size of 400 mesh to 1000 mesh and 90% to 95% of a metal bond; 55%, silver powder 12-20%, magnesium powder 30-33% and talcum powder 2-5%; the copper-tin pre-alloyed powder is made of the following raw materials by weight percentage: copper 40-58% and tin 42-60% %.

[0034] The purity of the silver powder is ≥99.0%, and the particle size is 100 mesh to 200 mesh.

[0035] The purity of the magnesium powder is more than or equal to 99.0%, and the particle size is 100 mesh to 200 mesh.

[0036] The purity of copper in the raw materials for the preparation of the copper-tin pre-alloyed powder is ≥99.8%, and the particle size is 100 mesh to 200 mesh.

[0037]The purity of tin in the raw materials for the preparation of the copper-tin pre-alloyed powder is ≥99.8%, and the particle size is 100 mesh to 200 mesh.

[0038] A preparation method for...

Embodiment 2

[0045] A kind of diamond honing oil stone, is made of the raw material of following percentage by weight: particle size is 800 order diamond powder 7% and metal bonding agent 93%; Said metal bonding agent is made of copper-tin pre-alloy powder 55%, silver powder 12%, magnesium powder 30% and talcum powder 3%; the copper-tin pre-alloyed powder is made of the following raw materials in weight percentage: 52% copper and 48% tin.

[0046] The purity of the silver powder is ≥99.0%, and the particle size is 100 mesh to 200 mesh.

[0047] The purity of the magnesium powder is more than or equal to 99.0%, and the particle size is 100 mesh to 200 mesh.

[0048] The purity of copper in the raw materials for the preparation of the copper-tin pre-alloyed powder is ≥99.8%, and the particle size is 100 mesh to 200 mesh.

[0049] The purity of tin in the raw materials for the preparation of the copper-tin pre-alloyed powder is ≥99.8%, and the particle size is 100 mesh to 200 mesh

[0050] ...

Embodiment 3

[0057] A kind of diamond honing oil stone, is made of the raw material of following percentage by weight: particle size is 400 order diamond powder 5% and metal bonding agent 95%; Said metal bonding agent is made of copper-tin pre-alloy powder 50%, silver powder 14%, magnesium powder 33% and talcum powder 3%; the copper-tin pre-alloyed powder is made of the following raw materials in weight percentage: 40% copper and 60% tin.

[0058] The preparation method of this embodiment can refer to embodiment 2.

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Abstract

The invention provides a diamond honing oilstone and a preparation method thereof. The diamond honing oilstone is prepared from, by weight percent, 5%-10% of diamond micro-powder with the granularity ranging from 400 meshes to 1000 meshes and 90%-95% of a metal bond. The metal bond is composed of 45%-55% of copper-tin pre-alloyed powder, 12%-20% of silver powder, 30%-33% of magnesium powder and 2%-5% of talcum powder with the granularity ranging from 200 meshes to 800 meshes. The specific preparation method includes the steps that an oilstone blank is prepared through the procedures such as material mixing, mold forming, sintering and equal channel angular extrusion; and finally, machining is conducted on the oilstone blank, and a finished product with the qualified size precision is obtained. The oilstone manufactured through the method solves the problems that at present, a hydraulic cylinder barrel honing oilstone machining hydraulic cylinder barrel is low in cylindricity and poor in straightness accuracy, the surface roughness does not reach the standard, and burns, burrs and hydraulic cylinder barrel inner hole surface scratches exist, meanwhile, hardness of the oilstone is improved, the shape retention is improved, and the service life is prolonged.

Description

technical field [0001] The invention belongs to the field of cylinder barrel honing of hydraulic cylinders, and in particular relates to a diamond honing oil stone and a preparation method thereof. Background technique [0002] Honing is a finishing method that applies a certain pressure on the surface of the workpiece with the oil stone embedded in the honing head, and the honing tool or workpiece performs relative rotation and axial linear reciprocating motion at the same time, and removes a very small margin on the workpiece. Because honing can make the workpiece reach Due to its high precision and surface finish, it is widely used in precision and ultra-precision machining of inner holes of various parts such as hydraulic cylinders, bearing rings, and cylinder liners of internal combustion engines. The key factors affecting the quality of honing include machine tool performance and honing oilstone. As a key factor, honing oilstone not only affects the machining accuracy...

Claims

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Application Information

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IPC IPC(8): B24D3/06B24D3/34B24D18/00B24B33/08
CPCB24B33/08B24D3/06B24D3/342B24D18/0009B24D18/0063
Inventor 赵炯邵俊永闫宁陈恩厚韩欣夏举学
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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