CN103029046B - Novel diamond disk - Google Patents
Novel diamond disk Download PDFInfo
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- CN103029046B CN103029046B CN201210589756.5A CN201210589756A CN103029046B CN 103029046 B CN103029046 B CN 103029046B CN 201210589756 A CN201210589756 A CN 201210589756A CN 103029046 B CN103029046 B CN 103029046B
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Abstract
The invention discloses a novel diamond disk. The novel diamond disk is formed by tire body materials and diamond grains through a conventional hot-press sintering process after the tire body materials and the diamond grains are mixed in proportion, wherein the concentration of the diamond grains is 0.6-0.8 cts/cm<3>, and the tire body materials comprise the following compositions in parts by weight: 60-75 parts of Fe-Cu pre-alloy powder, 4-8 parts of Ni powder, 4-8 parts of Cr powder, 2-8 parts of Sn powder, 2-8 parts of Zn powder, 2-8 parts of P powder in which the P content is 22 wt%, 0.1-0.5 part of rare earth CeO2 powder and 2-5 parts of wolfram carbide powder. According to the novel diamond disk disclosed by the invention, the holding force from a tire body to a diamond is strong, and the problems of low grinding efficiency, short service life, poor stability, low comprehensive efficiency and the like existing in the traditional diamond disk are solved.
Description
Technical field
The present invention relates to a kind of hard material machining tool, specifically a kind of diamond disk.
Background technology
Diamond disk is the grinding tool on grinder, and it forms through sintering process sintering after being mixed in proportion by carcass material and diamond abrasive grain, implements smooth polishing during use by the High Rotation Speed of grinding machine to working face.
Now widely used diamond disk, the problems such as the hold of its carcass is poor, thus it is low to cause diamond disk to there is grinding efficiency, and service life is short, poor stability, and comprehensive benefit is lower.
Summary of the invention
The object of this invention is to provide the diamond grinding disk that a kind of carcass hold is stronger, the grinding efficiency solving the existence of existing diamond disk is low, the problems such as service life is short, poor stability, and comprehensive benefit is lower.
To achieve these goals, the present invention adopts following technical scheme:
A kind of diamond grinding disk, form through conventional hot-press sintering process sintering after being mixed in proportion by carcass material and diamond abrasive grain, wherein, the concentration of diamond abrasive grain is 0.6-0.8cts/cm
3, carcass material comprises 60-75 weight portion iron copper prealloy powder, 4-8 weight portion nickel by powder, 4-8 weight portion chromium powder end, the tin powder of 2-8 weight portion, the zinc powder of 2-8 weight portion, 2-8 weight portion phosphorus content are 22wt% ferrophosphorus powder, 0.1-0.5 weight portion Rare-Earth Ce O
2powder and 2-5 weight portion tungsten-carbide powder.
The grade of above-mentioned diamond abrasive grain is MBD4; Wherein, granularity 45/50 account for 5%, granularity 50/60 account for 45%, granularity 60/70 account for 45%, granularity 100/120 account for 5%.
The granularity of above-mentioned iron copper prealloy powder is 200-400 order, and the granularity of above-mentioned nickel by powder, above-mentioned chromium powder end, above-mentioned tin powder, above-mentioned zinc powder and above-mentioned ferrophosphorus powder is 300-400 order, and the granularity of above-mentioned tungsten-carbide powder is 220-320 order, above-mentioned Rare-Earth Ce O
2the granularity of powder is 220-320 order.
In above-mentioned iron copper prealloy powder, iron content accounts for 60wt%, and copper content accounts for 40wt%.
Above-mentioned Rare-Earth Ce O
2the purity of powder is 99%.
After adopting such scheme, diamond grinding disk of the present invention, its carcass material adopts the iron copper prealloy powder of low cost, and adds strong carbon thing forming element nickel and chromium.During sintering, iron copper and chromium, nickel can partial miscibilities, improve carcass to adamantine affinity, adding of nickel and chromium, also play the effect of solution strengthening, improve wearability and the hold of carcass, the grinding efficiency solving the existence of existing diamond disk is low, the problems such as service life is short, poor stability, and comprehensive benefit is lower.Novel grinding disc of the present invention, the life-span can reach 3 ~ 5 times of common mill, although cost has certain increase, cost performance is higher than common mill on the contrary, and use cost reduces; Can also be changed by sintering processing, the bonding strength of structural adjustment increase and disk body, and then reach the object improving the life-span and reduce cost of transportation.
Wherein, the grade of diamond abrasive grain is MBD4, and granularity 45/50 account for 5%, granularity 50/60 account for 45%, granularity 60/70 account for 45%, granularity 100/120 account for 5%.By this diamond grit scope and formation, can play the effect that milling corrects, reach the combination of grinding and milling, this feature is other features not available for common mill, specific to this Novel grinding disc.
Ferrophosphorus powder in carcass material can reduce carcass sintering temperature, reduces iron at high temperature to adamantine corrode, avoids diamond graphitization and affect its performance, can reduce graphite jig injury simultaneously, improve the access times of graphite jig, reduce production cost.Like this, the liquid-phase sintering of carcass generating portion, powder is subjected to displacement at a lower temperature, and diffusion, densified, the series of physical chemical changes such as alloying, obtain desirable dense sintering body.
In carcass material, Rare-Earth Ce O
2rare earth element in powder can react with the oxygen in carcass material, sulphur, nitrogen impurity, improves Impurity Distribution state, and purification carcass material and diamond faying face, improve carcass and hold diamond, diamond exposure is significantly improved.As Rare-Earth Ce O
2when powder accounts for 0.1-0.5wt% in carcass material, tyre body alloy bending strength can be made to improve 20-30%, and diamond exposure can improve 30%.
Tungsten-carbide powder in carcass material can improve the elastic modelling quantity of carcass, strengthens the mechanical property of carcass, greatly improves diamond caking property, thus improves grinding life-span and the grinding efficiency of diamond disk.
Detailed description of the invention
A kind of diamond grinding disk of the present invention, through conventional hot-press sintering process sintering forms after being mixed in proportion by carcass material and diamond abrasive grain.
In diamond disk of the present invention, the concentration of diamond abrasive grain is 0.6 ~ 0.8cts/cm
3.The grade of diamond abrasive grain is MBD4, wherein, granularity 45/50 account for 5%, granularity 50/60 account for 45%, granularity 60/70 account for 45%, granularity 100/120 account for 5%.
The ferrophosphorus powder that carcass material comprises 60-75 weight portion iron copper prealloy powder, 4-8 weight portion nickel by powder, 4-8 weight portion chromium powder end, the tin powder of 2-8 weight portion, the zinc powder of 2-8 weight portion, 2-8 weight portion phosphorus content are 22wt%, 0.1-0.5 weight portion purity are the Rare-Earth Ce O of 99%
2powder and 2-5 weight portion tungsten-carbide powder.
In above-mentioned iron copper prealloy powder, iron content accounts for 60wt%, and copper content accounts for 40wt%.
The granularity of above-mentioned iron copper prealloy powder is 200-400 order, and the granularity of above-mentioned nickel by powder, above-mentioned chromium powder end, above-mentioned tin powder, above-mentioned zinc powder and above-mentioned ferrophosphorus powder is 300-400 order, and the granularity of above-mentioned tungsten-carbide powder is 220-320 order, above-mentioned Rare-Earth Ce O
2the granularity of powder is 220-320 order.
Diamond grinding disk of the present invention, its performance test results is as follows:
Claims (5)
1. a diamond grinding disk, form through conventional hot-press sintering process sintering after being mixed in proportion by carcass material and diamond abrasive grain, it is characterized in that: wherein, the concentration of diamond abrasive grain is 0.6 ~ 0.8cts/cm
3, carcass material comprises 60 ~ 75 weight portion iron copper prealloy powder, 4-8 weight portion nickel by powder, 4-8 weight portion chromium powder end, the tin powder of 2-8 weight portion, the zinc powder of 2-8 weight portion, 2-8 weight portion phosphorus content are 22wt% ferrophosphorus powder, 0.1-0.5 weight portion Rare-Earth Ce O
2powder and 2-5 weight portion tungsten-carbide powder.
2. a kind of diamond grinding disk according to claim 1, is characterized in that: the grade of above-mentioned diamond abrasive grain is MBD4; Wherein, granularity 45/50 account for 5%, granularity 50/60 account for 45%, granularity 60/70 account for 45%, granularity 100/120 account for 5%.
3. a kind of diamond grinding disk according to claim 1, it is characterized in that: the granularity of above-mentioned iron copper prealloy powder is 200-400 order, the granularity of above-mentioned nickel by powder, above-mentioned chromium powder end, above-mentioned tin powder, above-mentioned zinc powder and above-mentioned ferrophosphorus powder is 300-400 order, the granularity of above-mentioned tungsten-carbide powder is 220-320 order, above-mentioned Rare-Earth Ce O
2the granularity of powder is 220-320 order.
4. a kind of diamond grinding disk according to claim 1, is characterized in that: in above-mentioned iron copper prealloy powder, iron content accounts for 60wt%, and copper content accounts for 40wt%.
5. a kind of diamond grinding disk according to claim 1, is characterized in that: above-mentioned Rare-Earth Ce O
2the purity of powder is 99%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210589756.5A CN103029046B (en) | 2012-12-29 | 2012-12-29 | Novel diamond disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210589756.5A CN103029046B (en) | 2012-12-29 | 2012-12-29 | Novel diamond disk |
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| CN103029046A CN103029046A (en) | 2013-04-10 |
| CN103029046B true CN103029046B (en) | 2015-05-20 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495936A (en) * | 2013-09-26 | 2014-01-08 | 秦皇岛星晟科技有限公司 | Formula of diamond-impregnated wheel |
| CN104175237B (en) * | 2014-07-24 | 2016-08-17 | 华侨大学 | Rare earth modified tungstenio binder diamond emery wheel and manufacture method thereof |
| CN105252448B (en) * | 2015-10-28 | 2018-07-06 | 江苏锋泰工具有限公司 | A kind of preparation process for diamond-impregnated wheel of dry grinding |
| CN107824268A (en) * | 2017-10-25 | 2018-03-23 | 安徽赵老五油脂有限公司 | A kind of automatic grinding stone mill |
| CN108907176B (en) * | 2018-07-19 | 2020-04-10 | 江苏华昌工具制造有限公司 | Matrix powder and diamond sintered body |
| CN109822465A (en) * | 2019-03-14 | 2019-05-31 | 泉州众志金刚石工具有限公司 | A kind of tile edge Metal Substrate emery wheel material |
| CN111571464B (en) * | 2020-05-26 | 2021-09-24 | 新乡市荣锋材料科技有限公司 | Matrix for high-speed grinding wheel, preparation method of matrix and superhard abrasive grinding wheel |
| CN111961938B (en) * | 2020-09-11 | 2022-02-18 | 成都新世佳材料科技有限公司 | Application of pure iron-based matrix to preparation of diamond tool bit and preparation method of diamond tool bit |
| CN114318099B (en) * | 2022-01-13 | 2022-09-23 | 河南黄河旋风股份有限公司 | Metal matrix-diamond composite material for drilling hard rock and preparation method thereof |
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| CN103029046A (en) | 2013-04-10 |
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