CN103706796A - Method for preparing copper-based self-lubricating material - Google Patents
Method for preparing copper-based self-lubricating material Download PDFInfo
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- CN103706796A CN103706796A CN201310755248.4A CN201310755248A CN103706796A CN 103706796 A CN103706796 A CN 103706796A CN 201310755248 A CN201310755248 A CN 201310755248A CN 103706796 A CN103706796 A CN 103706796A
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Abstract
The invention relates to a method for preparing a copper-based self-lubricating material. The method comprises the following steps: preparing ingredients of 10-20% of copper sulphide powder, 35-40% of copper-iron alloy powder and a remaining copper powder ingredient; blending the ingredients, wherein uniformly mixed raw materials are pressed into a compressed blank; sending the blank into a sintering furnace, sintering the blank into ingot under the protection of hydrogen atmosphere; repressing; performing extrusion forming. Self-lubricant FeS is firmly compounded with Cu through reactive synthesis, and the sintering and extrusion process further improves the compound capacity of the self-lubricant FeS and the matrix Cu and enables FeS particles to be uniformly distributed in the Cu matrix in a scattering mode.
Description
Technical field
The invention belongs to metal-base composites field, specifically refer to a kind of copper radical self-lubricating materials preparation method.
Background technology
Existing copper radical self-lubricating materials includes, copper or copper alloy foundation stone China ink solid self lubricant material, copper or copper alloy foundation stone China ink-oxide self-lubricating material, copper or copper alloy base MoS2 solid self lubricant material and copper-mould self-lubricating material.
Copper or copper alloy foundation stone China ink solid self lubricant material adopt the cold-rolled sintered method of conventional powder metallurgy to produce material, and its process is mixed powder-compacting-sintering.
Copper or copper alloy foundation stone China ink-oxide self-lubricating material adopt the free sintering process of powder metallurgy to prepare material, by the mixed powder-compacting-sintering of copper powder, graphite and lead oxide powder.
Copper or copper alloy base MoS2 solid self lubricant material adopt powder metallurgical technique to prepare this material, and matrix material normal temperature is shaped, sintering under hydrogen shield, water-cooled after insulation; Under low vacuum, flood kollag, and dry at 100-110 ℃.Dipping repeats 3-4 time with oven dry.Finally, at 370-380 ℃, under hydrogen shield, solidify 30min.
Copper-mould self-lubricating material kollag to be generally polytetrafluoroethylene (PTFE), the organic materials such as polyformaldehyde.
Summary of the invention
The object of this invention is to provide a kind of copper radical self-lubricating materials.
The present invention is achieved through the following technical solutions:
A copper radical self-lubricating materials preparation method,
Batching, is the copper sulfide powder of 10-20%, the copper-iron alloy powder of 35-40% by weight percentage, and surplus is copper powder batching;
Batch mixing, sends above-mentioned batching into batch mixer and mixes, mixing time 1-10 hour;
The raw material mixing is colded pressing and made pressed compact, pressed compact briquetting pressure 100-200Mpa, the press time is 15-30 second;
Blank is sent in sintering furnace and sinter ingot blank into, sintering temperature 700-750 ℃, time 6-8 hour under nitrogen atmosphere protection;
After temperature is reduced to 600-650 ℃, ingot blank carries out multiple pressure, multiple pressure pressure 650-750Mpa, and the pressure time is 3-5 second again;
After multiple pressure, temperature is increased to 850-1000 ℃ of extrusion modling.
Described copper sulfide powder is chemical pure copper sulfide powder.
Iron content in described copper-iron alloy powder is 5-8% by weight percentage.
The particle diameter of described copper sulfide powder, copper-iron alloy powder and copper powder is below 200 orders.
The invention has the beneficial effects as follows:
Machinery, physical property is excellent, antifriction effect is good, and that raw material of the present invention is prepared is simple, technical process is easily controlled, production cost is low.
The specific embodiment
A copper radical self-lubricating materials, includes copper sulfide powder, copper-iron alloy powder and copper powder; Its composition is the copper sulfide powder of 10-20%, the copper-iron alloy powder of 35-40% by weight percentage, and surplus is copper powder.
Described copper sulfide powder is chemical pure copper sulfide powder.
Iron content in described copper-iron alloy powder is 5-8% by weight percentage.
The particle diameter of described copper sulfide powder, copper-iron alloy powder and copper powder is below 200 orders.
The preparation method of described copper radical self-lubricating materials is,
Batching, is the copper sulfide powder of 10-20%, the copper-iron alloy powder of 35-40% by weight percentage, and surplus is copper powder batching;
Batch mixing, sends above-mentioned batching into batch mixer and mixes, mixing time 1-10 hour;
The raw material mixing is colded pressing and made pressed compact, pressed compact briquetting pressure 100-200Mpa, the press time is 15-30 second;
Blank is sent in sintering furnace and sinter ingot blank into, sintering temperature 700-750 ℃, time 6-8 hour under nitrogen atmosphere protection;
After temperature is reduced to 600-650 ℃, ingot blank carries out multiple pressure, multiple pressure pressure 650-750Mpa, and the pressure time is 3-5 second again;
After multiple pressure, temperature is increased to 850-1000 ℃ of extrusion modling.
Embodiment 1
A copper radical self-lubricating materials, includes copper sulfide powder, copper-iron alloy powder and copper powder; Its composition is 10% copper sulfide powder, 35% copper-iron alloy powder by weight percentage, and surplus is copper powder.
Described copper sulfide powder is chemical pure copper sulfide powder.
Iron content in described copper-iron alloy powder is 5% by weight percentage.
The particle diameter of described copper sulfide powder, copper-iron alloy powder and copper powder is below 200 orders.
The preparation method of described copper radical self-lubricating materials is,
Batching, is that 10% copper sulfide powder, its iron content of copper-iron alloy powder of 35% are 5% by weight percentage by weight percentage, and surplus is copper powder batching;
Batch mixing, sends above-mentioned batching into batch mixer and mixes, mixing time 5 hours;
The raw material mixing is colded pressing and made pressed compact, pressed compact briquetting pressure 180Mpa, the press time is 15 seconds;
Blank is sent in sintering furnace and sinter ingot blank into, sintering temperature 700-750 ℃, 6 hours time under nitrogen atmosphere protection;
After temperature is reduced to 600-650 ℃, ingot blank carries out multiple pressure, multiple pressure pressure 650Mpa, and the pressure time is 3 seconds again;
After multiple pressure, temperature is increased to 850 ℃ of extrusion modlings.
Embodiment 2
A copper radical self-lubricating materials, includes copper sulfide powder, copper-iron alloy powder and copper powder; Its composition is 20% copper sulfide powder, 40% copper-iron alloy powder by weight percentage, and surplus is copper powder.
Described copper sulfide powder is chemical pure copper sulfide powder.
Iron content in described copper-iron alloy powder is 8% by weight percentage.
The particle diameter of described copper sulfide powder, copper-iron alloy powder and copper powder is below 200 orders.
The preparation method of described copper radical self-lubricating materials is,
Batching, is that 20% copper sulfide powder, its iron content of copper-iron alloy powder of 40% are 8% by weight percentage by weight percentage, and surplus is copper powder batching;
Batch mixing, sends above-mentioned batching into batch mixer and mixes, mixing time 8 hours;
The raw material mixing is colded pressing and made pressed compact, pressed compact briquetting pressure 150Mpa, the press time is 30 seconds;
Blank is sent in sintering furnace and sinter ingot blank into, sintering temperature 700-750 ℃, 8 hours time under nitrogen atmosphere protection;
After temperature is reduced to 600-650 ℃, ingot blank carries out multiple pressure, multiple pressure pressure 750Mpa, and the pressure time is 5 seconds again;
After multiple pressure, temperature is increased to 1000 ℃ of extrusion modlings.
Embodiment 3
A copper radical self-lubricating materials, includes copper sulfide powder, copper-iron alloy powder and copper powder; Its composition is 15% copper sulfide powder, 38% copper-iron alloy powder by weight percentage, and surplus is copper powder.
Described copper sulfide powder is chemical pure copper sulfide powder.
Iron content in described copper-iron alloy powder is 7% by weight percentage.
The particle diameter of described copper sulfide powder, copper-iron alloy powder and copper powder is below 200 orders.
The preparation method of described copper radical self-lubricating materials is,
Batching, is that 15% copper sulfide powder, its iron content of copper-iron alloy powder of 38% are 7% by weight percentage by weight percentage, and surplus is copper powder batching;
Batch mixing, sends above-mentioned batching into batch mixer and mixes, mixing time 10 hours;
The raw material mixing is colded pressing and made pressed compact, pressed compact briquetting pressure 180Mpa, the press time is 25 seconds;
Blank is sent in sintering furnace and sinter ingot blank into, sintering temperature 700-750 ℃, 7 hours time under nitrogen atmosphere protection;
After temperature is reduced to 600-650 ℃, ingot blank carries out multiple pressure, multiple pressure pressure 700Mpa, and the pressure time is 4 seconds again;
After multiple pressure, temperature is increased to 950 ℃ of extrusion modlings.
Claims (4)
1. a copper radical self-lubricating materials preparation method, is characterized in that:
Batching, is the copper sulfide powder of 10-20%, the copper-iron alloy powder of 35-40% by weight percentage, and surplus is copper powder batching;
Batch mixing, sends above-mentioned batching into batch mixer and mixes, mixing time 1-10 hour;
The raw material mixing is colded pressing and made pressed compact, pressed compact briquetting pressure 100-200Mpa, the press time is 15-30 second;
Blank is sent in sintering furnace and sinter ingot blank into, sintering temperature 700-750 ℃, time 6-8 hour under nitrogen atmosphere protection;
After temperature is reduced to 600-650 ℃, ingot blank carries out multiple pressure, multiple pressure pressure 650-750Mpa, and the pressure time is 3-5 second again;
After multiple pressure, temperature is increased to 850-1000 ℃ of extrusion modling.
2. copper radical self-lubricating materials preparation method according to claim 1, is characterized in that: described copper sulfide powder is chemical pure copper sulfide powder.
3. copper radical self-lubricating materials preparation method according to claim 1, is characterized in that: the iron content in described copper-iron alloy powder is 5-8% by weight percentage.
4. copper radical self-lubricating materials preparation method according to claim 1, is characterized in that: the particle diameter of described copper sulfide powder, copper-iron alloy powder and copper powder is below 200 orders.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691935A (en) * | 2013-12-27 | 2014-04-02 | 黄忠波 | Copper-based self-lubricating material and method for manufacturing same |
| CN104532039A (en) * | 2014-12-08 | 2015-04-22 | 薛亚红 | Copper-based self-lubricating material preparation method |
| CN105252008A (en) * | 2015-11-04 | 2016-01-20 | 深圳艾利门特科技有限公司 | Method for preparing porous heat conduction copper pipes through powder extrusion forming technology |
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| JPS5534679A (en) * | 1978-09-05 | 1980-03-11 | Nippon Teppun Kk | Iron powder containing copper and production thereof |
| CN1910300A (en) * | 2004-01-15 | 2007-02-07 | 大丰工业株式会社 | Pb free copper alloy sliding material |
| CN101041870A (en) * | 2007-04-26 | 2007-09-26 | 昆明理工大学 | Preparation method of copper radical self-lubricating materials |
| JP2010090470A (en) * | 2008-10-10 | 2010-04-22 | Jfe Steel Corp | Iron-based sintered alloy and method for producing the same |
| CN102228991A (en) * | 2011-06-16 | 2011-11-02 | 中南大学 | Environment-friendly lead-free copper-based self-lubricating material and preparation process thereof |
| CN103691935A (en) * | 2013-12-27 | 2014-04-02 | 黄忠波 | Copper-based self-lubricating material and method for manufacturing same |
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2013
- 2013-12-27 CN CN201310755248.4A patent/CN103706796A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5534679A (en) * | 1978-09-05 | 1980-03-11 | Nippon Teppun Kk | Iron powder containing copper and production thereof |
| CN1910300A (en) * | 2004-01-15 | 2007-02-07 | 大丰工业株式会社 | Pb free copper alloy sliding material |
| CN101041870A (en) * | 2007-04-26 | 2007-09-26 | 昆明理工大学 | Preparation method of copper radical self-lubricating materials |
| JP2010090470A (en) * | 2008-10-10 | 2010-04-22 | Jfe Steel Corp | Iron-based sintered alloy and method for producing the same |
| CN102228991A (en) * | 2011-06-16 | 2011-11-02 | 中南大学 | Environment-friendly lead-free copper-based self-lubricating material and preparation process thereof |
| CN103691935A (en) * | 2013-12-27 | 2014-04-02 | 黄忠波 | Copper-based self-lubricating material and method for manufacturing same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691935A (en) * | 2013-12-27 | 2014-04-02 | 黄忠波 | Copper-based self-lubricating material and method for manufacturing same |
| CN104532039A (en) * | 2014-12-08 | 2015-04-22 | 薛亚红 | Copper-based self-lubricating material preparation method |
| CN105252008A (en) * | 2015-11-04 | 2016-01-20 | 深圳艾利门特科技有限公司 | Method for preparing porous heat conduction copper pipes through powder extrusion forming technology |
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Application publication date: 20140409 |