Manufacturing method for diamond honing oilstone

A technology for honing oil stone and diamond, which is applied in the field of preparation of tungsten-coated diamond honing oil stone, which can solve the problems of poor cleanliness of tungsten atoms, graphitization of diamond, weak interface bonding force, etc., achieve excellent self-sharpening, increase matrix hardness, strengthen binding effect

Active Publication Date: 2016-07-20
ZHENJIANG N E T DIAMOND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the method of coating other metals on the surface of diamond, there are problems such as weak interfacial bonding force and a large amount of graphitization of diamond after coating.
In the method of surface tungsten plating, there are problems such as poor cleanliness of tungsten atoms, or cumbersome process and high process cost, and it has not been applied to honing stones.

Method used

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  • Manufacturing method for diamond honing oilstone
  • Manufacturing method for diamond honing oilstone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0031] (1) Combine commercially available diamond with a particle size of about 120 μm, ammonium tungstate (calculated in moles of tungsten atoms), and salt (sodium chloride: potassium chloride = 1:1, molar ratio) at a molar ratio of 20:1:20 Mix and then put it in a ball mill jar for roller milling for 24 hours; take out the ball milled mixed powder, put it in an alumina crucible, heat it to 1000°C under vacuum, keep it warm for 120min, and subject the obtained product to multiple times of ultrasonic vibration and boiling in distilled water To remove the salt, tungsten-coated diamond is obtained.

[0032] (2) the volume ratio obtained above is 8% tungsten-coated diamond and metal powder (mass composition is 50% Cu, 25% Sn, 8% Ag, 12% Co, 5% Ti, the particle size is about 40 μm) mixed ball mill, wherein the ball milling balls are agate balls, the ball milling medium is alcohol, the ball-to-material ratio is 1:1, the ball milling speed is 100r / min, the ball milling time is 24h, ...

Embodiment example 2

[0034] (1) The commercially available diamond with a particle size of about 120 μm, ammonium paratungstate (calculated in terms of moles of tungsten atoms), and salt (sodium chloride: sodium carbonate: barium chloride = 1:1:1, molar ratio) at a ratio of 15:1:15 The molar ratio is mixed, and then placed in a ball mill tank for roller milling for 48 hours; the milled mixed powder is taken out, placed in an alumina crucible, heated to 1100°C under vacuum, and kept for 60 minutes, and the obtained product is subjected to multiple ultrasonic vibrations Boil with distilled water to remove the salt, and then get tungsten-coated diamond.

[0035] (2) the volume ratio obtained above is 25% tungsten-coated diamond and metal powder (mass composition is 50% Cu, 25% Sn, 8% Ag, 12% Co, 5% Ni, the particle size is about 40 μm) mixed ball milling, wherein the ball milling balls are agate balls, the ball milling medium is alcohol, the ball-to-material ratio is 1:1, the ball milling speed is 10...

Embodiment example 3

[0037] (1) The commercially available diamond with a particle size of about 120 μm, ammonium metatungstate (calculated in terms of moles of tungsten atoms), and salt (sodium chloride: sodium carbonate: sodium sulfate = 1:1:1, molar ratio) at a ratio of 15:1 : mixed at a molar ratio of 15, and then placed in a ball mill tank for roller milling for 36 hours; the milled mixed powder was taken out, placed in an alumina crucible, heated to 1200 ° C under vacuum, kept for 30 minutes, and the resulting product was subjected to multiple Ultrasonic vibration and distilled water boiling to remove the salt, that is, tungsten-coated diamond.

[0038] (2) the volume ratio obtained above is 15% tungsten-coated diamond and metal powder (mass composition is 50% Cu, 25% Sn, 8% Ag, 12% Co, 2.5% Ti and 2.5% Fe, the particle size is about 40 μm) mixed ball mill, wherein the ball milling ball is agate ball, the ball milling medium is alcohol, the ball material ratio is 1:1, the ball milling speed ...

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Abstract

The invention relates to the technical field of superhard honing, in particular to a manufacturing method for tungsten-plated diamond honing oilstone. The manufacturing method is characterized in that diamond subject to surface metallization treatment serves as an abrasive material to prepare the honing oilstone. The manufacturing method includes the steps that diamond particles are subject to tungsten-plated pretreatment, and the pretreated diamond particles and a metallic bond are mixed according to a certain proportion to be subject to ball milling; and ball-milled mixing powder is placed into a graphite die to be subject to hot pressing sintering, or arranged in a steel die to be pressed into a green body, and pressureless sintering is carried out in a reducing atmosphere. The diamond honing oilstone manufactured through the method has the beneficial effects of being high in intensity, hardness, grinding efficiency and self-sharpening performance, long in service life, low in process cost, easy and convenient in process and the like.

Description

technical field [0001] The invention relates to the technical field of superhard honing, in particular to a method for preparing a tungsten-coated diamond honing stone, the purpose of which is to enhance the interface bonding between diamond abrasive grains and metal adhesives and optimize the preparation process to improve the grinding of the honing stone Efficiency, service life and reduced production costs. Background technique [0002] Diamond honing is a method of smoothing and finishing the inner hole, outer circular surface, plane, and special curved surface of metal, ceramic, glass, and hard alloy workpieces using diamond honing tools (such as honing rods, wheels, and discs, etc.) processing methods. Diamond honing tools are widely used in engineering and mining machinery, energy and chemical industry, electronic appliances, aerospace, vehicles and ships and other industries. High-performance diamond honing tools have high efficiency, high precision, long life, stro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F5/00B22F1/00B22F9/04B24D18/00
CPCB22F1/0003B22F5/00B22F9/04B22F2009/043B24D18/0009
Inventor 刘桂武方国祥乔冠军陶俊楠周彰伟邵海成张相召
Owner ZHENJIANG N E T DIAMOND
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