CN101780543A - Copper-based powder sintered diamond composite material and preparation method thereof - Google Patents
Copper-based powder sintered diamond composite material and preparation method thereof Download PDFInfo
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- CN101780543A CN101780543A CN200910117440A CN200910117440A CN101780543A CN 101780543 A CN101780543 A CN 101780543A CN 200910117440 A CN200910117440 A CN 200910117440A CN 200910117440 A CN200910117440 A CN 200910117440A CN 101780543 A CN101780543 A CN 101780543A
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Abstract
The invention discloses a copper-based powder sintered diamond composite material and a preparation method thereof. The matrix materials of the copper-based powder sintered diamond composite material comprise the following components in percentage by weight: 58.00 to 63.00 percent of Cu, 15.50 to 18.50 percent of Ni, 14.00 to 18.00 percent of Co, 2.00 to 5.00 percent of Fe, 1.50 to 3.50 percent of Cr, and 1.50 to 3.50 percent of Sn; and diamond powder is mixed with the matrix materials by accounting for 3.60 to 5.10 percent of the total weight of the matrix materials. The preparation method comprises the following steps: mixing the components, and performing ball milling for 20 minutes under the working conditions that the rotating speed is 200r/min and the ratio of grinding media to the material is 5:1; weighing the material according to product weight requirements, filling the material in a moulding die, and pressing the moulding die with a press for compression moulding; pressurizing with a graphite mould in a vacuum induction sintering press in a pressure range of 2 to 3.5MPa, sintering the material into a formed material at the temperature of between 650 and 840, and preserving the heat for 6 to 12 minutes.
Description
Technical field
The present invention relates to stone material and glass cutting machining tool material, specifically is copper-based powder sintered diamond composite material and preparation method thereof.
Background technology
Diamond saw blade is the important tool of processing industries such as pottery, crystal, glass, quartz, jewel, carbide alloy, semiconductor, magnetic material, and the matrix material of diamond saw blade generally adopts phenolic resins at present.Resin saw blade bending strength, hardness, impact flexibility is low, porosity is high, and is poor with the diamond wetability, and the diamond drop-off degree is bigger, causes adamantine utilization rate lower.Recently, the copper-iron-based powder sintered diamond composite material of new development under the water cooling condition during sawing corrosion product many, seriously polluted to product and processing site.
Summary of the invention
The objective of the invention is to prepare heat conduction, wear-resisting, copper-based powder sintered diamond composite saw blade matrix material that corrosion resistance is good, improve saw blade bending strength, hardness, impact flexibility and corrosion resistance, reduce porosity, improve the diamond utilization rate.
The present invention is copper-based powder sintered diamond composite material and preparation method thereof, the component of measuring the Cu-base powder matrix material by weight percentage is: Cu 58.00～63.00%, Ni 15.50～18.50%, Co14.00～18.00%, Fe 2.00～5.00%, Cr 1.50～3.50%, and Sn 1.50～3.50%, other impurity≤1%; Diamond dust is by 3.60～5.10% batchings of above matrix material gross weight.
The copper-based powder sintered diamond composite material preparation method, component and diamond dust component by above-mentioned Cu-base powder matrix material are prepared burden, at rotating speed is that 200r/min, ratio of grinding media to material are to carry out ball mill mixing under 5: 1 the operating mode, time remaining 20 minutes, by using forcing press compression moulding in product weight requirement weighing, the pressing mold of packing into, in vacuum induction sintering press, pressurize then with graphite jig, pressure limit is 2～3.5Mpa, sinter moulding material into, sintering temperature is 650～840 ℃, is incubated 6～12 minutes.
Beneficial effect of the present invention is: Cu, Ni, Sn are sintering matrix major components, play a supportive role mechanical performances such as the hardness of decision material, intensity.Sn and Cu, Ni counterdiffusion mutually in the sintering process form αGu Rongti, and the hardness of material is strengthened to some extent; Sn and Cu, Ni counterdiffusion very easily mutually, and along with the increase of Sn content, solid solubility increases, and the hardness of material increases; When the content of Cu greater than 55% the time, the tissue of Cu base sintered body forms a large amount of light-weight metal-Fu copper ε phases that can the filling perforation crack, the hardness of material is improved; Ni, Fe, Cr have formed Fe in sintering process
7Ni
3, CrFe
4, intermetallic compound such as FeCrNi, the sintering matrix has been played the effect of strongization of disperse; Therefore the intensity of Co particle and hardness all are higher than matrix alloy, are uniformly distributed in the effect that Co particle in the matrix can play particle strengthening.Diamond mainly plays dissection, and other composition in diamond and the matrix material does not play any chemical reaction, but can be wetting by parent metal Cu, Ni.The hardness HB of copper-iron-based powder sintered diamond composite material 〉=160, stable performance.
The specific embodiment
Embodiment 1:
Count by weight percentage, composition of the present invention (being the granularity order number that uses powder in the bracket) is: Cu 63.00% (+220), Co 14.00% (+250), Ni 18.00% (+250), Fe 2.00% (+200), Cr 1.50% (+220), Sn 1.50% (+220).Diamond is by 3.63% batching of above matrix material gross weight, and granularity is selected for use+140 orders.Prepare burden in proportion by above-mentioned composite material compositions and powder size, at rotating speed is that 200r/min, ratio of grinding media to material are to carry out ball mill mixing under 5: 1 the operating mode, time remaining 20 minutes, by using forcing press compression moulding in product weight requirement weighing, the pressing mold of packing into, in vacuum induction sintering press, be pressurized to 2.5MPa then, sinter moulding material into graphite jig.Sintering range is 820 ℃, and temperature retention time is 6 minutes.The copper-based powder sintered diamond composite material saw blade of thermal sintering can be used for sawings such as pottery, crystal, glass, quartz, jewel, carbide alloy, semiconductor, magnetic material.
Embodiment 2:
Count by weight percentage, composition of the present invention (being the granularity order number that uses powder in the bracket) is: Cu 58.00% (+180), Co 18.00% (+300), Ni 16.00% (+300), Fe 5.00% (+150), Cr 1.50% (+180), Sn 1.50% (+180).Diamond is by 5.10% batching of above matrix material gross weight, and granularity is selected for use+100 orders.Prepare burden in proportion by above-mentioned composite material compositions and powder size, at rotating speed is that 200r/min, ratio of grinding media to material are to carry out ball mill mixing under 5: 1 the operating mode, time remaining 20 minutes, by using forcing press compression moulding in product weight requirement weighing, the pressing mold of packing into, in vacuum induction sintering press, be pressurized to 3.0MPa then, sinter moulding material into graphite jig.Sintering range is 790 ℃, and temperature retention time is 8 minutes.The copper-based powder sintered diamond composite material saw blade of thermal sintering can be used for sawings such as pottery, crystal, glass, quartz, jewel, carbide alloy, semiconductor, magnetic material.
Embodiment 3:
Count by weight percentage, composition of the present invention (being the granularity order number that uses powder in the bracket) is: Cu 60.00% (+220), Co 15.50% (+300), Ni 17.00% (+300), Fe 3.00% (+200), Cr 2.50% (+220), Sn 2.00% (+180).Diamond is by 4.10% batching of above matrix material gross weight, and granularity is selected for use+140 orders.Prepare burden in proportion by above-mentioned composite material compositions and powder size, at rotating speed is that 200r/min, ratio of grinding media to material are to carry out ball mill mixing under 5: 1 the operating mode, time remaining 20 minutes, by using forcing press compression moulding in product weight requirement weighing, the pressing mold of packing into, in vacuum induction sintering press, be pressurized to 3.5MPa then, sinter moulding material into graphite jig.Sintering range is 670 ℃, and temperature retention time is 12 minutes.The copper-based powder sintered diamond composite material saw blade of thermal sintering can be used for sawings such as pottery, crystal, glass, quartz, jewel, carbide alloy, semiconductor, magnetic material.
Claims (4)
1. copper-based powder sintered diamond composite material, it is characterized in that the component of measuring the Cu-base powder matrix material by weight percentage is: Cu 58.00～63.00%, Ni 15.50～18.50%, Co 14.00～18.00%, Fe 2.00～5.00%, Cr 1.50～3.50%, and Sn 1.50～3.50%, other impurity≤1%; Diamond dust is by 3.60～5.10% batchings of above matrix material gross weight.
2. copper-based powder sintered diamond composite material according to claim 1, the starting powder granularity order that it is characterized in that ingredient composition is counted scope: Cu-180～+ 220, Ni-250～+ 300, Co-250～+ 300, Fe-150～200, Cr-180～+ 220, Sn-180～+ 220, diamond is selected-80～+ 140 order granularity powder for use.
3. copper-based powder sintered diamond composite material preparation method, it is characterized in that preparing burden by the component of claim 1, at rotating speed is that 200r/min, ratio of grinding media to material are to carry out ball mill mixing under 5: 1 the operating mode, time remaining 20 minutes by using forcing press compression moulding in product weight requirement weighing, the pressing mold of packing into, pressurizes with graphite jig in vacuum induction sintering press then, pressure limit is 2～3.5Mpa, sinter moulding material into, sintering temperature is 650～840 ℃, is incubated 6～12 minutes.
4. copper-based powder sintered diamond composite material preparation method, it is characterized in that preparing burden by claim 1 and the described composition of claim 2 and powder size, at rotating speed is that 200r/min, ratio of grinding media to material are to carry out ball mill mixing under 5: 1 the operating mode, time remaining 20 minutes, by using forcing press compression moulding in product weight requirement weighing, the pressing mold of packing into, in vacuum induction sintering press, pressurize then with graphite jig, pressure limit is 2～3.5Mpa, sinter moulding material into, sintering temperature is 650～840 ℃, is incubated 6～12 minutes.
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| CN2009101174404A CN101780543B (en) | 2009-09-02 | 2009-09-02 | Copper-based powder sintered diamond composite material and preparation method thereof |
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| CN2009101174404A CN101780543B (en) | 2009-09-02 | 2009-09-02 | Copper-based powder sintered diamond composite material and preparation method thereof |
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| CN101780543A true CN101780543A (en) | 2010-07-21 |
| CN101780543B CN101780543B (en) | 2011-08-31 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277510A (en) * | 2011-07-25 | 2011-12-14 | 哈尔滨工业大学 | Mixing method for preparation of diamond enhanced metal matrix composite material |
| CN102513539A (en) * | 2011-12-30 | 2012-06-27 | 长沙市德天冶金科技有限公司 | Manufacture method for tire casing of diamond wire saw sintered type bead |
| CN104368806A (en) * | 2014-10-27 | 2015-02-25 | 苏州莱特复合材料有限公司 | Copper-based composite material and preparation method thereof |
| CN106623898A (en) * | 2016-12-19 | 2017-05-10 | 西安欧中材料科技有限公司 | Metal Cu powder and preparation method thereof |
| CN109082548A (en) * | 2018-07-13 | 2018-12-25 | 湖州市道场乡资产经营有限公司 | A kind of Cu-Ni system powder sintering process |
| CN111676382A (en) * | 2020-05-21 | 2020-09-18 | 南京航空航天大学 | Preparation method of high-thermal-conductivity diamond/Cu-Ni composite material heat sink |
| CN113182522A (en) * | 2021-03-24 | 2021-07-30 | 郑州磨料磨具磨削研究所有限公司 | Hot isostatic pressing method for degreasing and sintering metal ultrathin grinding wheel |
-
2009
- 2009-09-02 CN CN2009101174404A patent/CN101780543B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277510A (en) * | 2011-07-25 | 2011-12-14 | 哈尔滨工业大学 | Mixing method for preparation of diamond enhanced metal matrix composite material |
| CN102277510B (en) * | 2011-07-25 | 2012-10-31 | 哈尔滨工业大学 | Mixing method for preparation of diamond enhanced metal matrix composite material |
| CN102513539A (en) * | 2011-12-30 | 2012-06-27 | 长沙市德天冶金科技有限公司 | Manufacture method for tire casing of diamond wire saw sintered type bead |
| CN102513539B (en) * | 2011-12-30 | 2013-11-06 | 长沙市德天冶金科技有限公司 | Manufacture method for tire casing of diamond wire saw sintered type bead |
| CN104368806A (en) * | 2014-10-27 | 2015-02-25 | 苏州莱特复合材料有限公司 | Copper-based composite material and preparation method thereof |
| CN106623898A (en) * | 2016-12-19 | 2017-05-10 | 西安欧中材料科技有限公司 | Metal Cu powder and preparation method thereof |
| CN109082548A (en) * | 2018-07-13 | 2018-12-25 | 湖州市道场乡资产经营有限公司 | A kind of Cu-Ni system powder sintering process |
| CN111676382A (en) * | 2020-05-21 | 2020-09-18 | 南京航空航天大学 | Preparation method of high-thermal-conductivity diamond/Cu-Ni composite material heat sink |
| CN113182522A (en) * | 2021-03-24 | 2021-07-30 | 郑州磨料磨具磨削研究所有限公司 | Hot isostatic pressing method for degreasing and sintering metal ultrathin grinding wheel |
| CN113182522B (en) * | 2021-03-24 | 2023-04-18 | 郑州磨料磨具磨削研究所有限公司 | Hot isostatic pressing method for degreasing and sintering metal ultrathin grinding wheel |
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|---|---|
| CN101780543B (en) | 2011-08-31 |
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