CN202297783U - Diamond particle with compositely pre-alloyed surface - Google Patents
Diamond particle with compositely pre-alloyed surface Download PDFInfo
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- CN202297783U CN202297783U CN2011203754271U CN201120375427U CN202297783U CN 202297783 U CN202297783 U CN 202297783U CN 2011203754271 U CN2011203754271 U CN 2011203754271U CN 201120375427 U CN201120375427 U CN 201120375427U CN 202297783 U CN202297783 U CN 202297783U
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Abstract
The utility model relates to a diamond particle with a compositely pre-alloyed surface, comprising a diamond particle body, wherein a titanium layer is plated on the surface of the diamond particle body, a nickel layer is plated on the surface of the titanium layer, and a chromium layer is plated on the surface of the nickel layer. The diamond particle with a compositely pre-alloyed surface disclosed by the utility model enhances the bonding strength of diamond and bonding agent, and enhances the holding force on diamond particle acted by matrix. Diamond has the characteristics of a plurality of metals simultaneously, and has high thermal conductivity due to pre-alloying for the surface of diamond. Diamond is isolated from the outside by metal layers on surface, so that the occurrences of graphitization and oxidization for diamond can be prevented in the condition of high-temperature grinding and cutting; simultaneously, the compression strength of diamond particle can be enhanced, and the bonding strength of matrix material and diamond abrasive particle can be enhanced, and then the life of diamond tool can be prolonged.
Description
Technical field
The utility model relates to a kind of diamond particles, the pre-alloyed diamond particles of particularly a kind of surface recombination.
Background technology
Diamond is widely used in machinery, electronics, and building, probing, opticglass processing, oil production, processing of stone, industries such as mechanical precision sizing can be made such as various saw blades, emery wheel, emery wheel diamond tools such as geology drill bit.Diamond tool commonly used mainly is that metal-powder mixes with diamond abrasive grain and presses the embryo sintering to process, and only by mechanical bond, diamond particles is prone to come off on diamond abrasive grain and carcass material interface, and the abrasive material utilization ratio is low, and lack life tools.For solving the problem of above-mentioned existence, research both at home and abroad makes the diamond abrasive grain surface pre-alloyed, makes diamond surface pre-alloyed, thereby has improved the bonding strength between carcass and the diamond abrasive grain.Because the diamond particles structure is to plate the single metal level of one deck at diamond surface before, has a lot of defectives through regular meeting.
The utility model content
The main purpose of the utility model is to combine difficulty and diamond and the common metal wellability shortcoming poor with bonding with other wedding agents for solving existing diamond, and the pre-alloyed diamond particles of producing of surface recombination.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
The diamond particles that surface recombination is pre-alloyed comprises the diamond particles body, is coated with one deck titanium layer on the said diamond particles body surface, and said titanium layer is coated with one deck nickel dam on the surface, is coated with one deck chromium layer on the said nickel dam surface.
Preferably, form one deck titanium carbide layer between said diamond particles body and the said titanium layer.
Technique scheme has following beneficial effect: the pre-alloyed diamond particles of this surface recombination is coated with titanium layer, nickel dam, chromium layer successively at the diamond particles body surface; Make the surperficial pre-alloyed of diamond particles body; This diamond particles just can have the characteristic of multiple metal simultaneously like this, has higher thermal conductivity, can improve the ultimate compression strength of diamond particles simultaneously; Improve the bonding strength of carcass material and this diamond particles, and then prolong the life-span of diamond tool.The metal level on surface can be hedged off from the outer world the diamond particles body, under the condition of high temperature grinding and cutting, can prevent the generation of diamond particles body greying, oxidation.
Description of drawings
Fig. 1 is the sectional view of the diamond particles of the utility model.
1 diamond, 2 titanium carbide layers, 3 titanium layers, 4 nickel dams, 5 chromium layers.
Embodiment
Further specify the utility model below in conjunction with accompanying drawing.
As shown in Figure 1; The pre-alloyed diamond particles of the utility model surface recombination comprises diamond particles body 1; Be coated with one deck titanium layer 3 on the diamond particles body surface; Form one deck titanium carbide layer 2 between diamond particles body 1 and the titanium layer 3, titanium layer is coated with one deck nickel dam 4 on 3 surfaces, is coated with one deck chromium layer 5 on nickel dam 4 surfaces.
The method for making of the diamond particles that the utility model surface recombination is pre-alloyed, concrete operation steps is following:
The first step adopts the little evaporation titanizing of vacuum, makes the even plating one deck of diamond surface titanium, and makes the contact surface of diamond and titanium generate TiC, and weightening finish is than being generally 0.5%～5%.Titanizing equipment is special-purpose titanizing stove and vacuum apparatus.The diamond that mixes and titanium valve are packed in the specific container, and put into the titanizing stove.Impose a condition for: temperature 750-850 ℃, soaking time 2-4 hour.
Second step, use diamond rolling electroplating machine, on titanium layer, adopt electro-plating method to plate one deck nickel, and water clean 3 times, weightening finish is than being generally 25%～60%.
Will carry out electroless plating before the diamond electroplating, wherein the step of electroless plating is following: prepare electroplate liquid according to prescription, wherein plating solution formula is: nickel sulfamic acid 370g/l, nickelous chloride 25～40g/l, boric acid 35～50g/l; Electroplate liquid is prepared in beaker according to prescription, when the water-bath stove is heated to 85 ℃, beaker is put into the water-bath stove; Diamond particles is poured in the beaker; And stir with glass stick simultaneously, the temperature of water-bath is controlled between 80～90 ℃, soaking time 1.5 hours; In plating bath, do not have bubble to emerge, diamond is washed 3-5 time.
The step of electronickelling: diamond is put into the plating bottle, add the electroplate liquid for preparing simultaneously, will electroplate bottle and be placed on the electroplating machine, install galvanized positive and negative electrode, set weightening finish per-cent.Ic:1～2A/dm
2, PH is controlled between 4.0～5.5.
The 3rd step, adopt the little evaporation coating method of vacuum, on nickel dam, plate one deck chromium.Weightening finish is than being generally 1.5%～6%.Chrome plating equipment is special-purpose chromium plating stove and vacuum apparatus.The diamond that mixes and chromium powder are packed in the specific container, and put into the chromium plating stove.Impose a condition for: temperature 800-1000 ℃, soaking time 3-5 hour.
The 4th step placed the above diamond of plating just in the one special special heating furnace, and design temperature is no more than 650-900 ℃, carries out once new pre-alloyed effect, makes this produce a kind of hot eutectic, and is for use.
In the method for making of the diamond particles that this surface recombination is pre-alloyed, with titanium valve ratio 1000ct/40g, 100 orders are with the ratio 1000ct/140g of thin diamond with titanium valve with thick diamond for 100 orders; With chromium powder ratio 1000ct/30g, 100 orders are with the ratio 1000ct/50g of thin diamond with chromium powder with thick diamond for 100 orders.Titanium valve after the little vapor deposition treatment of vacuum and chromium powder are reusable after special plating bath is handled, and can improve raw-material recycling degree like this, practice thrift cost.
The pre-alloyed diamond particles of this surface recombination is coated with titanium layer, nickel dam, chromium layer successively at the diamond particles body surface; Make the surperficial pre-alloyed of diamond particles body; This diamond particles just can have the characteristic of multiple metal simultaneously like this, has higher thermal conductivity, can improve the ultimate compression strength of diamond particles simultaneously; Improve the bonding strength of carcass material and this diamond particles, and then prolong the life-span of diamond tool.The metal level on surface can be hedged off from the outer world the diamond particles body, under the condition of high temperature grinding and cutting, can prevent the generation of diamond particles body greying, oxidation.
Claims (2)
1. the diamond particles that surface recombination is pre-alloyed comprises the diamond particles body, it is characterized in that: be coated with one deck titanium layer on the diamond particles body surface, said titanium layer is coated with one deck nickel dam on the surface, is coated with one deck chromium layer on the said nickel dam surface.
2. the pre-alloyed diamond particles of surface recombination according to claim 1 is characterized in that: form one deck titanium carbide layer between said diamond particles body and the said titanium layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203754271U CN202297783U (en) | 2011-09-29 | 2011-09-29 | Diamond particle with compositely pre-alloyed surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203754271U CN202297783U (en) | 2011-09-29 | 2011-09-29 | Diamond particle with compositely pre-alloyed surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202297783U true CN202297783U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2011203754271U Expired - Fee Related CN202297783U (en) | 2011-09-29 | 2011-09-29 | Diamond particle with compositely pre-alloyed surface |
Country Status (1)
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| CN (1) | CN202297783U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107434435A (en) * | 2017-08-02 | 2017-12-05 | 中南钻石有限公司 | A kind of graphite enamel material and preparation method thereof |
| CN108517520A (en) * | 2018-06-15 | 2018-09-11 | 北京铂阳顶荣光伏科技有限公司 | A kind of diamond laminated film and its preparation method and application |
| CN108823532A (en) * | 2018-08-02 | 2018-11-16 | 泉州众志金刚石工具有限公司 | A kind of diamond tool and preparation method thereof of diamond surface metallization processing |
| CN109648484A (en) * | 2019-01-12 | 2019-04-19 | 深圳西斯特科技有限公司 | A kind of water-based milling liquid valve processing electroplating CBN grinding wheel |
| CN114653936A (en) * | 2022-05-05 | 2022-06-24 | 中国科学院过程工程研究所 | Sintering method of double-layer coated diamond tool |
| CN117862967A (en) * | 2024-03-13 | 2024-04-12 | 长沙百通新材料科技有限公司 | Diamond surface treatment process |
-
2011
- 2011-09-29 CN CN2011203754271U patent/CN202297783U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107434435A (en) * | 2017-08-02 | 2017-12-05 | 中南钻石有限公司 | A kind of graphite enamel material and preparation method thereof |
| CN108517520A (en) * | 2018-06-15 | 2018-09-11 | 北京铂阳顶荣光伏科技有限公司 | A kind of diamond laminated film and its preparation method and application |
| CN108823532A (en) * | 2018-08-02 | 2018-11-16 | 泉州众志金刚石工具有限公司 | A kind of diamond tool and preparation method thereof of diamond surface metallization processing |
| CN109648484A (en) * | 2019-01-12 | 2019-04-19 | 深圳西斯特科技有限公司 | A kind of water-based milling liquid valve processing electroplating CBN grinding wheel |
| CN114653936A (en) * | 2022-05-05 | 2022-06-24 | 中国科学院过程工程研究所 | Sintering method of double-layer coated diamond tool |
| CN114653936B (en) * | 2022-05-05 | 2023-03-10 | 中国科学院过程工程研究所 | Sintering method of double-layer coated diamond tool |
| CN117862967A (en) * | 2024-03-13 | 2024-04-12 | 长沙百通新材料科技有限公司 | Diamond surface treatment process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20160929 |