CN105648257A - Continuous hot isostatic pressure dipping method for preparing large-size carbon and copper composite materials - Google Patents
Continuous hot isostatic pressure dipping method for preparing large-size carbon and copper composite materials Download PDFInfo
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- CN105648257A CN105648257A CN201511021546.6A CN201511021546A CN105648257A CN 105648257 A CN105648257 A CN 105648257A CN 201511021546 A CN201511021546 A CN 201511021546A CN 105648257 A CN105648257 A CN 105648257A
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- carbon
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- hot isostatic
- copper alloy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
- B22D23/04—Casting by dipping
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1073—Infiltration or casting under mechanical pressure, e.g. squeeze casting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Organic Chemistry (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The invention belongs to the technical field of composite material preparation and particularly relates to a continuous hot isostatic pressure dipping method for preparing large-size carbon and copper composite materials. According to the method, pure copper or copper alloy ingots are heated and molten in a crucible under the vacuum condition, porous carbon materials are dipped into pure copper or copper alloy melt, pressure is kept for a period of time after pressurization, and dipped carbon and copper composite materials are extracted from the melt; and a hot isostatic pressure dipping device is designed in the manner that blowing in can be performed in a heat state, on one hand, the dipped carbon and copper composite materials can be taken out of an upper discharging port, carbon materials to be dipped are prepared again, and on the other hand, pure copper or copper alloy ingots can be supplemented in a lower feeding port, and the requirement of continuous dipping is met. By means of the continuous hot isostatic pressure dipping method, the requirement of the melting temperature of the pure copper or the copper alloy ingots can be met, fast dipping of large-size and thick-wall carbon and copper composite material products can be achieved, the dipping uniformity is excellent, the continuous operation can be achieved, the production efficiency is high, it is avoided that the materials are taken out after being cooled, and machining is not needed.
Description
Technical field
The invention belongs to technical field of composite preparation, particularly relate to a kind of serialization hot isostatic pressing dipping method preparing large-size carbon carbon/carbon-copper composite material.
Background technology
Carbon-copper material has excellent conduction, heat conduction, wear-resistant, high strength, self-lubricating and corrosion resistance nature, and it is widely used as the contact material of sliding conduction, pantograph pan in modern electrical railway, particularly high-speed railway Pantograph-OCS system, the conduction carbon brush in generator motor, slip electrical contact etc. are all be made up of carbon-copper material.
Along with the performance of carbon-copper material is updated, its Application Areas is more and more wider, the performance of carbon-copper material, size and shape is proposed requirements at the higher level, has impelled the improvement of carbon-copper material preparation technology. Hot isostatic pressing dipping is the advanced technologies preparing carbon-copper material at present, existing a small amount of application in high-speed railway Pantograph-OCS system pantograph pan, but still there are some problems:
1) impregnation pressure is lower, for the product that wall thickness is thicker, impregnating depth is difficult to meet requirement, and the patent of invention such as China Patent No. No.201010106908.2 provides a kind of copper/graphite composite material and manufacture method thereof, and pressure during dipping is 60��80MPa;
2) cannot produce continuously, efficiency is low, cost height, patent of invention such as China Patent No. No.200710158757.3 provides a kind of carbon graphite thermal isostatic pressing silver leaching process, need after hot isostatic pressing has flooded, be cooled to less than 100 DEG C to come out of the stove, and silver-colored melting after liquid solidifies is wrapped in around carbon matrix, it is necessary to just can obtain product by machining processes. Therefore, in order to adapt to every profession and trade to the high performance requirements of large size, low cost carbon-copper material, hot isostatic pressing impregnation technology need to be improved.
Summary of the invention
It is an object of the invention to provide a kind of low cost, the serialization hot isostatic pressing dipping method of preparing large-size carbon carbon/carbon-copper composite material, solve that impregnation pressure is lower, the dipping that is difficult to meet thick wall product completely, and cannot be produced continuously, inefficient problem.
In order to realize above-mentioned purpose, the present invention provides following technical scheme:
The present invention provides a kind of serialization hot isostatic pressing dipping method preparing large-size carbon carbon/carbon-copper composite material, comprises the steps:
(1) raw material prepare: the chemical composition of carbon-copper material by volume per-cent be: carbon 75��85%, all the other be copper or copper alloy;
(2) copper or copper alloy are placed in crucible, vacuumize, be warming up to and copper or copper alloy are fully melted;
(3) after copper or copper alloy melt completely, lead to into argon pneumatic control impregnation pressure, after temperature-stable, utilize frock to be immersed by carbon material to be impregnated in molten liquid;
(4) carbon-copper material flooded is proposed from molten liquid, and take out and obtain carbon-copper material product from top discharge mouth;
(5) rationally add copper or copper alloy ingot according to the molten liquid measure of the residue in crucible, carbon-copper material product can be produced continuously.
The method is suitable for the dipping of high heat conduction, High-conductivity carbon/fine copper matrix material and carbon/copper alloy composite material.
The chemical composition of described copper or copper alloy is by mass percentage: Cu85��100%, Zn0��15%.
In described step (2), being evacuated to 10��30Pa, be warming up to 1100��1250 DEG C, soaking time is 2��3h.
In described step (3), impregnation pressure is 100��200MPa, and soaking time is 10��20min; It is suitable for the dipping of large size, thick wall product.
Described method can take out the material that flooded and supplementation with copper or copper alloy ingot in hot lower blow-on, is suitable for continuous prodution.
Compared with prior art, the useful effect of the present invention is:
1, dipping temperature height, it is possible to meet the temperature of fusion requirement of fine copper, can rationally select fine copper or low melting-point coper alloy according to performance requriementss such as the conduction of carbon-copper material product, heat conduction;
2, impregnation pressure height, it is possible to meet the quick dipping of large size, thick wall carbon-copper material product, the excellent in uniformity of dipping;
3, it is convenient to continuous prodution, by can the design of hot blow-on, it is possible to realize the function of blow-on under dipping temperature, the carbon-copper material flooded is taken out from top discharge mouth, and carbon material to be impregnated is loaded in stove, it is not necessary to feeding after cooling, it is not necessary to machining processes; Supplement fine copper or copper alloy ingot from lower opening for feed, the continuous operations of dipping process can be realized.
Embodiment
Below in conjunction with embodiment, the present invention is further described.
The serialization hot isostatic pressing dipping method preparing large-size carbon carbon/carbon-copper composite material of the present invention, first it is the heating and melting in crucible by fine copper or copper alloy ingot under vacuum, then lead to and reach 100��200MPa into argon gas to furnace pressure, being immersed by porous carbon materials in fine copper or molten alloyed copper, pressurize for some time takes out from molten liquid and obtains the carbon-copper material flooded; Hot isostatic pressing impregnating equipment is designed to can in hot lower blow-on, the carbon-copper material flooded can be taken out from upper outlet on the one hand, again prepare carbon material to be impregnated, fine copper or copper alloy ingot can be supplemented on the other hand at lower opening for feed, meet the requirement of continuous impregnating.
The present invention provides a kind of serialization hot isostatic pressing dipping method preparing large-size carbon carbon/carbon-copper composite material, comprises the steps:
(1) according to composition and the proportioning of the conduction of product, heat conduction, the performance requriements appropriate design carbon-copper material such as wear-resisting, the chemical composition of carbon-copper material by volume per-cent be: carbon 75��85%, copper or copper alloy 15��25%;Wherein, the chemical composition of copper or copper alloy is by mass percentage: Cu85��100%, Zn0��15%;
(2) being placed in crucible by copper or copper alloy, be evacuated to 10��30Pa, be warming up to 1100��1250 DEG C, insulation 2��3h makes copper or copper alloy fully melt;
(3) after copper or copper alloy melt completely, leading to into argon gas to furnace pressure is 100��200MPa, utilizes frock to be immersed by carbon material to be impregnated in molten liquid, insulation 10��20min after temperature-stable;
(4) carbon-copper material flooded is proposed from molten liquid, and take out and obtain carbon-copper material product from top discharge mouth;
(5) rationally add copper or copper alloy ingot according to the molten liquid measure of the residue in crucible, carbon-copper material product can be produced continuously.
Embodiment 1-hot isostatic pressing impregnated carbon/fine copper matrix material
1, the proportioning of carbon-copper material is 75% carbon, 25% fine copper (volume ratio);
2, being placed in crucible by fine copper, be evacuated to 10Pa, be warming up to 1250 DEG C, insulation 3h makes fine copper fully melt;
3, after fine copper melts completely, leading to into argon gas to furnace pressure is 200MPa, utilizes frock to be immersed by carbon material to be impregnated in molten liquid, insulation 10min after temperature-stable;
4, the material flooded is proposed from molten liquid, and take out and obtain carbon/fine copper composite products from top discharge mouth;
5, rationally add fine copper ingot according to the molten liquid measure of the residue in crucible, carbon/fine copper composite products can be produced continuously.
Embodiment 2-hot isostatic pressing impregnated carbon/brass matrix material
1, the proportioning of carbon-copper material is 85% carbon, 15% copper alloy (volume ratio), and the composition of copper alloy is 85%Cu, 15%Zn (mass ratio);
2, being placed in crucible by copper alloy, be evacuated to 30Pa, be warming up to 1100 DEG C, insulation 2h makes copper alloy fully melt;
3, after copper alloy melts completely, leading to into argon gas to furnace pressure is 100MPa, utilizes frock to be immersed by carbon material to be impregnated in molten liquid, insulation 20min after temperature-stable;
4, the material flooded is proposed from molten liquid, and take out and obtain carbon/brass composite products from top discharge mouth;
5, rationally add copper alloy ingot according to the molten liquid measure of the residue in crucible, carbon/brass composite products can be produced continuously.
Claims (6)
1. prepare the serialization hot isostatic pressing dipping method of large-size carbon carbon/carbon-copper composite material for one kind, it is characterised in that: the method comprises the steps:
(1) raw material prepare: the chemical composition of carbon-copper material by volume per-cent be: carbon 75��85%, all the other be copper or copper alloy;
(2) copper or copper alloy are placed in crucible, vacuumize, be warming up to and copper or copper alloy are fully melted;
(3) after copper or copper alloy melt completely, lead to into argon pneumatic control impregnation pressure, after temperature-stable, utilize frock to be immersed by carbon material to be impregnated in molten liquid;
(4) carbon-copper material flooded is proposed from molten liquid, and take out and obtain carbon-copper material product from top discharge mouth;
(5) rationally add copper or copper alloy ingot according to the molten liquid measure of the residue in crucible, carbon-copper material product can be produced continuously.
2. the serialization hot isostatic pressing dipping method preparing large-size carbon carbon/carbon-copper composite material according to claim 1, it is characterised in that: the method is suitable for the dipping of high heat conduction, High-conductivity carbon/fine copper matrix material and carbon/copper alloy composite material.
3. the serialization hot isostatic pressing dipping method preparing large-size carbon carbon/carbon-copper composite material according to claim 1, it is characterised in that: the chemical composition of described copper or copper alloy is by mass percentage: Cu85��100%, Zn0��15%.
4. the serialization hot isostatic pressing dipping method preparing large-size carbon carbon/carbon-copper composite material according to claim 1, it is characterised in that: in described step (2), being evacuated to 10��30Pa, be warming up to 1100��1250 DEG C, soaking time is 2��3h.
5. the serialization hot isostatic pressing dipping method preparing large-size carbon carbon/carbon-copper composite material according to claim 1, it is characterised in that: in described step (3), impregnation pressure is 100��200MPa, and soaking time is 10��20min; It is suitable for the dipping of large size, thick wall product.
6. the serialization hot isostatic pressing dipping method preparing large-size carbon carbon/carbon-copper composite material according to claim 1, it is characterised in that: described method can take out the material that flooded and supplementation with copper or copper alloy ingot in hot lower blow-on, is suitable for continuous prodution.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511021546.6A CN105648257B (en) | 2015-12-31 | 2015-12-31 | A kind of serialization high temperature insostatic pressing (HIP) dipping method for preparing large-size carbon carbon/carbon-copper composite material |
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| CN201511021546.6A CN105648257B (en) | 2015-12-31 | 2015-12-31 | A kind of serialization high temperature insostatic pressing (HIP) dipping method for preparing large-size carbon carbon/carbon-copper composite material |
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| CN105648257A true CN105648257A (en) | 2016-06-08 |
| CN105648257B CN105648257B (en) | 2017-09-29 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424667A (en) * | 2016-12-19 | 2017-02-22 | 湖南顶立科技有限公司 | Impregnating equipment and method |
| CN106733421A (en) * | 2016-12-19 | 2017-05-31 | 湖南顶立科技有限公司 | A kind of immersion system and dipping method |
| CN106756190A (en) * | 2016-11-21 | 2017-05-31 | 新冶高科技集团有限公司 | Prepare the serialization high temperature insostatic pressing (HIP) dipping method of pickup composite carbon-copper material high |
| CN108251733A (en) * | 2018-01-30 | 2018-07-06 | 哈尔滨工业大学 | A kind of preparation method of high heat-conductive diamond/carbon/carbon-copper composite material |
| CN109574667A (en) * | 2019-01-15 | 2019-04-05 | 深圳大学 | A kind of brush preparation method of low-friction coefficient long-life |
| CN115948672A (en) * | 2022-11-22 | 2023-04-11 | 宁波坤铜合金材料有限公司 | Copper/carbon composite material, preparation method thereof and application thereof in electric contact material |
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| CN101450871A (en) * | 2007-12-07 | 2009-06-10 | 中国科学院金属研究所 | Carbon graphite thermal isostatic pressing silver leaching process |
| CN102146552A (en) * | 2010-02-09 | 2011-08-10 | 航天材料及工艺研究所 | Copper/graphite compound material and preparation method thereof |
| CN104774012A (en) * | 2015-04-29 | 2015-07-15 | 四川理工学院 | Electric locomotive pantograph copper-soaking carbon contact strip producing method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106756190A (en) * | 2016-11-21 | 2017-05-31 | 新冶高科技集团有限公司 | Prepare the serialization high temperature insostatic pressing (HIP) dipping method of pickup composite carbon-copper material high |
| CN106756190B (en) * | 2016-11-21 | 2019-04-02 | 新冶高科技集团有限公司 | Prepare the serialization hot isostatic pressing dipping method of high impregnation increment composite carbon-copper material |
| CN106424667A (en) * | 2016-12-19 | 2017-02-22 | 湖南顶立科技有限公司 | Impregnating equipment and method |
| CN106733421A (en) * | 2016-12-19 | 2017-05-31 | 湖南顶立科技有限公司 | A kind of immersion system and dipping method |
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| CN108251733A (en) * | 2018-01-30 | 2018-07-06 | 哈尔滨工业大学 | A kind of preparation method of high heat-conductive diamond/carbon/carbon-copper composite material |
| CN109574667A (en) * | 2019-01-15 | 2019-04-05 | 深圳大学 | A kind of brush preparation method of low-friction coefficient long-life |
| CN115948672A (en) * | 2022-11-22 | 2023-04-11 | 宁波坤铜合金材料有限公司 | Copper/carbon composite material, preparation method thereof and application thereof in electric contact material |
| CN115948672B (en) * | 2022-11-22 | 2024-05-31 | 宁波坤铜合金材料有限公司 | Copper/carbon composite material, preparation method thereof and application thereof in electric contact material |
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| CN105648257B (en) | 2017-09-29 |
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Effective date of registration: 20201029 Address after: 100081 Haidian District Institute of South Road, Beijing, No. 76 Patentee after: CHINA IRON & STEEL RESEARCH INSTITUTE Group Patentee after: Gangyan Haopu Technology Co.,Ltd. Address before: 100081 Haidian District Institute of South Road, Beijing, No. 76 Patentee before: CHINA IRON & STEEL RESEARCH INSTITUTE Group Patentee before: NEW METALLURGY HI-TECH GROUP Co.,Ltd. |