CN106756215A - A kind of high ferro earthing or grounding means selfreparing conduction wear-resistant copper alloy and preparation method thereof - Google Patents
A kind of high ferro earthing or grounding means selfreparing conduction wear-resistant copper alloy and preparation method thereof Download PDFInfo
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- CN106756215A CN106756215A CN201611264835.3A CN201611264835A CN106756215A CN 106756215 A CN106756215 A CN 106756215A CN 201611264835 A CN201611264835 A CN 201611264835A CN 106756215 A CN106756215 A CN 106756215A
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- copper alloy
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- grounding means
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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
- C22C9/02—Alloys based on copper with tin as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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Abstract
A kind of high ferro earthing or grounding means selfreparing conduction wear-resistant copper alloy, the copper alloy is made up of the element of following mass percent：Sn 6.0% 12.0%, Ni 1.0% 5.0%, Fe 0 4.0%, P 0 1.0%, Zn 0 1.0%, Pb 0 4.0%, remaining material is Cu.Relative to prior art, the present invention provide through the copper alloy after Overheating Treatment, be metastable state homogeneous structure, face-centred cubic structure, with relatively low hardness and toughness high.Under micro- electric arc or high-speed friction effect, homogeneous structure produces decomposition, forms the heterogeneous structure containing precipitated phase hardening constituent, and hardness can be increased substantially, material wear ability increases, resistance to arc damage ability is improved；If local surfaces sustain damage, the indenture of generation as common alloys because micro- arcing is further deepened, and will not can form self-reparing capability in follow-up mechanical wear and electric erosion wear.
Description
Technical field
The present invention relates to an Albatra metal, and in particular to a kind of high ferro earthing or grounding means frictional disk conductive wear-resisting copper of selfreparing
Alloy and preparation method thereof.
Background technology
Tin and copper containing alloy is excellent because of its electric conductivity, mechanical performance, arc extinguishing ability, is always high ferro earthing or grounding means frictional disk
Optimal material selection.With the fast development of China's high ferro cause, the operation of EMUs runs through various regions within Chinese territory, to the east of upper
Sea, west to Urumchi, south to Sanya, north to Harbin, running environment from several meters of height above sea level to several kms, air humidity,
Temperature various regions difference is also very big.From Europe, Japan and other countries imported with original packaging EMUs with earthing or grounding means lack Chinese difference compared with
Test and associated use experience under the conditions of overall situation, at home using when occur in that bulk failure.
The abnormal wear phenomenon of frictional disk is the relatively common problem of a class.Due to external import frictional disk used by copper close
Gold is difficult in adapt to the running environment condition of Chinese complexity, frictional disk occur after loading operation the irregular and wear rate of abrasion compared with
The phenomenon such as big, the indenture produced when being impacted can be increasingly deeper due to galvanic action, and frequently can lead to frictional disk is not having
Normal work just cannot be continued in the case of reaching regulation mileage, even if more renewing frictional disk also is difficult to the determination time.So not
Can only increase input cost, and can produce great potential safety hazard, or even can cause serious motor-car accident.This is just urgent
Need it is a kind of it is more wear-resisting, replace current material with more long life, safety coefficient material higher.
The content of the invention
The purpose of the present invention is that to overcome copper alloy used by external frictional disk short, safe hidden in Chinese useful life
Suffer from defect high, there is provided a kind of long-life with self-healing function, suitable for the conductive resistance to of high ferro earthing or grounding means frictional disk
Mill copper alloy, while providing the method for preparing the copper alloy.
The purpose of the present invention is accomplished in the following manner：
A kind of high ferro earthing or grounding means with selfreparing conduction wear-resistant copper alloy, the copper alloy by following mass percent element group
Into：Sn 6.0%-12.0%, Ni 1.0%-5.0%, Fe 0-4.0%, P 0-1.0%, Zn 0-1.0%, Pb 0-4.0%, remaining material
It is Cu.
The copper alloy is made up of the element of following mass percent：Sn 8.0%-10.0%、Ni 1.0%-1.5%、Fe 0-
0.5%th, P 0-0.6%, Zn 0.6%-1.0%, Pb 0.5%-2.0%, remaining material are Cu.
Using above-mentioned raw materials cast molding, gained casting is heat-treated at a temperature of 450 DEG C -650 DEG C, and the time is 1-
4h, water-cooled of directly coming out of the stove.
The copper alloy being made after the water-cooled of coming out of the stove is metastable state homogeneous structure, face-centred cubic structure.
Copper alloy after heat treatment forms the complex phase group containing precipitated phase hardening constituent under micro- electric arc or high-speed friction effect
Knit, if local surfaces sustain damage, the indenture of generation forms self-reparing capability in follow-up mechanical wear and electric erosion wear.
Relative to prior art, the present invention provide through the copper alloy after Overheating Treatment, be metastable state homogeneous structure, the center of area
Cubic structure, with relatively low hardness and toughness high.Under micro- electric arc or high-speed friction effect, homogeneous structure is produced point
Solution, forms the heterogeneous structure containing precipitated phase hardening constituent, and hardness can be increased substantially, material wear ability increases, resistance to arc damage
Ability is improved；If local surfaces sustain damage, the indenture of generation will not be as common alloys because micro- arcing further adds
It is deep, and self-reparing capability can be formed in follow-up mechanical wear and electric erosion wear.Used compared to external import frictional disk
Copper alloy service life is longer, safety coefficient is higher.
Specific embodiment
Embodiment 1
A kind of high ferro earthing or grounding means with selfreparing conduction wear-resistant copper alloy, the copper alloy by following mass percent element group
Into：Sn 6.0%-12.0%, Ni 1.0%-5.0%, Fe 0-4.0%, P 0-1.0%, Zn 0-1.0%, Pb 0-4.0%, remaining material
It is Cu.Preferably：The copper alloy is made up of the element of following mass percent：Sn 8.0%-10.0%、Ni 1.0%-1.5%、Fe
0-0.5%, P 0-0.6%, Zn 0.6%-1.0%, Pb 0.5%-2.0%, remaining material are Cu.
The high ferro earthing or grounding means as described above preparation method of selfreparing conduction wear-resistant copper alloy, comprises the following steps：
（1）Melting：The various raw materials that copper alloy will be prepared are put into heating melting are carried out in stove；
（2）Cast molding：By step（1）In the melting liquid cast in molten condition in mold, obtain casting；
（3）Heat treatment：By step（2）In the casting that obtains be heat-treated at a temperature of 450 DEG C -650 DEG C, the time is 1-4h,
Then directly come out of the stove water-cooled, it is ensured that be metastable state homogeneous structure, face-centred cubic structure.
The copper alloy that the present invention is provided, under micro- electric arc or high-speed friction effect, metastable state homogeneous structure produces decomposition,
The heterogeneous structure containing precipitated phase hardening constituent is formed, hardness can be increased substantially, material wear ability increases, resistance to arc damage ability
Improve；If local surfaces sustain damage, the indenture of generation, will not as common alloys because micro- arcing is further deepened,
And self-reparing capability can be formed in follow-up mechanical wear and electric erosion wear.
The high ferro earthing or grounding means frictional disk prepared by the copper alloy, when 300,000 kilometers of running assessments are carried out after loading operation
It was found that, working condition is good, surface damage without exception and polishing scratch is uniform, and average wear goes out very much less than 0.1mm, performance
Color.
Embodiment 2
A kind of high ferro earthing or grounding means with selfreparing conduction wear-resistant copper alloy, the copper alloy by following mass percent element group
Into：Sn 9.0%, Ni 3%, Fe 1%, P 0.5%, Zn 0.5%, Pb 2%, remaining material are Cu.
The high ferro earthing or grounding means as described above preparation method of selfreparing conduction wear-resistant copper alloy, comprises the following steps：
（1）Melting：The various raw materials that copper alloy will be prepared are put into heating melting are carried out in stove；
（2）Cast molding：By step（1）In the melting liquid cast in molten condition in mold, obtain casting；
（3）Heat treatment：By step（2）In the casting that obtains be heat-treated at a temperature of 550 DEG C, the time is 3h, then directly
Come out of the stove water-cooled, it is ensured that be metastable state homogeneous structure, face-centred cubic structure.
The high ferro earthing or grounding means frictional disk prepared by the copper alloy, when 300,000 kilometers of running assessments are carried out after loading operation
It was found that, working condition is good, surface damage without exception and polishing scratch is uniform, and average wear goes out very much less than 0.1mm, performance
Color.
Embodiment 3
A kind of high ferro earthing or grounding means with selfreparing conduction wear-resistant copper alloy, the copper alloy by following mass percent element group
Into：Sn 9.0%, Ni 1.0%, Fe 0%, P 0%, Zn 0.7%, Pb 0%, remaining material are Cu（89.3%）.
The high ferro earthing or grounding means as described above preparation method of selfreparing conduction wear-resistant copper alloy, comprises the following steps：
（1）Melting：The various raw materials that copper alloy will be prepared are put into heating melting are carried out in stove；
（2）Cast molding：By step（1）In the melting liquid cast in molten condition in mold, obtain casting；
（3）Heat treatment：By step（2）In the casting that obtains be heat-treated at a temperature of 600 DEG C, the time is 4h, then directly
Come out of the stove water-cooled, it is ensured that be metastable state homogeneous structure, face-centred cubic structure.
Embodiment 4
A kind of high ferro earthing or grounding means with selfreparing conduction wear-resistant copper alloy, the copper alloy by following mass percent element group
Into：Sn 6.5%, Ni 3.5%, Fe 0%, P 0.4%, Zn 0.6%, Pb 1.5%, remaining material are Cu（87.5%）.
The high ferro earthing or grounding means as described above preparation method of selfreparing conduction wear-resistant copper alloy, comprises the following steps：
（1）Melting：The various raw materials that copper alloy will be prepared are put into heating melting are carried out in stove；
（2）Cast molding：By step（1）In the melting liquid cast in molten condition in mold, obtain casting；
（3）Heat treatment：By step（2）In the casting that obtains be heat-treated at a temperature of 500 DEG C, the time is 4h, then directly
Come out of the stove water-cooled, it is ensured that be metastable state homogeneous structure, face-centred cubic structure.
Embodiment 5
A kind of high ferro earthing or grounding means with selfreparing conduction wear-resistant copper alloy, the copper alloy by following mass percent element group
Into：Sn 12%, Ni 1.5%, Fe 0.5%, P 0.1%, Zn 0.2%, Pb 1.0%, remaining material are Cu（84.7%）.
The high ferro earthing or grounding means as described above preparation method of selfreparing conduction wear-resistant copper alloy, comprises the following steps：
（1）Melting：The various raw materials that copper alloy will be prepared are put into heating melting are carried out in stove；
（2）Cast molding：By step（1）In the melting liquid cast in molten condition in mold, obtain casting；
（3）Heat treatment：By step（2）In the casting that obtains be heat-treated at a temperature of 450 DEG C, the time is 2h, then directly
Come out of the stove water-cooled, it is ensured that be metastable state homogeneous structure, face-centred cubic structure.
Embodiment 6
A kind of high ferro earthing or grounding means with selfreparing conduction wear-resistant copper alloy, the copper alloy by following mass percent element group
Into：Sn 10.5%, Ni 5%, Fe 3%, P 0.6%, Zn 0%, Pb 0%, remaining material are Cu（80.9%）.
The high ferro earthing or grounding means as described above preparation method of selfreparing conduction wear-resistant copper alloy, comprises the following steps：
（1）Melting：The various raw materials that copper alloy will be prepared are put into heating melting are carried out in stove；
（2）Cast molding：By step（1）In the melting liquid cast in molten condition in mold, obtain casting；
（3）Heat treatment：By step（2）In the casting that obtains be heat-treated at a temperature of 600 DEG C, the time is 1h, then directly
Come out of the stove water-cooled, it is ensured that be metastable state homogeneous structure, face-centred cubic structure.
Embodiment 7
A kind of high ferro earthing or grounding means with selfreparing conduction wear-resistant copper alloy, the copper alloy by following mass percent element group
Into：Sn 10.0%, Ni 2.0%, Fe 1.0%, P 0.2%, Zn 0.9%, Pb 1.5%, remaining material are Cu（84.4%）.
The high ferro earthing or grounding means as described above preparation method of selfreparing conduction wear-resistant copper alloy, comprises the following steps：
（1）Melting：The various raw materials that copper alloy will be prepared are put into heating melting are carried out in stove；
（2）Cast molding：By step（1）In the melting liquid cast in molten condition in mold, obtain casting；
（3）Heat treatment：By step（2）In the casting that obtains be heat-treated at a temperature of 5500 DEG C, the time is 2.5h, Ran Houzhi
Pick out stove water-cooled, it is ensured that be metastable state homogeneous structure, face-centred cubic structure.
Copper alloy formula is shown in Table 1-2 in embodiment of the present invention 8-25, and other are with embodiment 2.
Table 1
Table 2
Above-described is only the preferred embodiment of the present invention, it is noted that cardinal principle of the present invention is, through Overheating Treatment
The wearability under micro- electric arc or high-speed friction effect of copper alloy afterwards increases and with self-repair function.For the technology of this area
For personnel, under the premise of general idea of the present invention is not departed from, some changes and improvements can also be made, these should also be considered as
Protection scope of the present invention.
Claims (5)
1. a kind of high ferro earthing or grounding means with selfreparing conduction wear-resistant copper alloy, it is characterised in that：The copper alloy is by following quality hundred
Divide the element composition of ratio：Sn 6.0%-12.0%、Ni 1.0%-5.0%、Fe 0-4.0%、P 0-1.0%、Zn 0-1.0%、Pb 0-
4.0%, remaining material is Cu.
2. high ferro earthing or grounding means as claimed in claim 1 with selfreparing conduction wear-resistant copper alloy, it is characterised in that：The copper alloy
It is made up of the element of following mass percent：Sn 8.0%-10.0%、Ni 1.0%-1.5%、Fe 0-0.5%、P 0-0.6%、Zn
0.6%-1.0%, Pb 0.5%-2.0%, remaining material are Cu.
3. the high ferro earthing or grounding means as described in claim any one of 1-2 with selfreparing conduction wear-resistant copper alloy preparation method,
It is characterized in that：Using above-mentioned raw materials cast molding, gained casting is heat-treated at a temperature of 450 DEG C -650 DEG C, and the time is
1-4h, water-cooled of then directly coming out of the stove.
4. the high ferro earthing or grounding means as claimed in claim 3 preparation method of selfreparing conduction wear-resistant copper alloy, its feature exists
In：The copper alloy being made after the water-cooled of coming out of the stove is metastable state homogeneous structure, face-centred cubic structure.
5. the high ferro earthing or grounding means as claimed in claim 3 preparation method of selfreparing conduction wear-resistant copper alloy, its feature exists
In：Under micro- electric arc or high-speed friction effect, homogeneous structure produces decomposition, formation to contain precipitated phase to copper alloy after heat treatment
The heterogeneous structure of hardening constituent, if local surfaces sustain damage, the indenture of generation, the shape in follow-up mechanical wear and electric erosion wear
Into self-reparing capability.
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| CN201611264835.3A CN106756215B (en) | 2016-12-30 | 2016-12-30 | A kind of high ferro earthing or grounding means selfreparing conduction wear-resistant copper alloy and preparation method thereof |
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| CN201611264835.3A CN106756215B (en) | 2016-12-30 | 2016-12-30 | A kind of high ferro earthing or grounding means selfreparing conduction wear-resistant copper alloy and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107779654A (en) * | 2017-11-09 | 2018-03-09 | 四川城际轨道交通材料有限责任公司 | A kind of train earthing or grounding means collection electroplax alloy material |
| CN108588476A (en) * | 2018-06-21 | 2018-09-28 | 新乡市海山机械有限公司 | Wear-resisting copper sheathing of a kind of oil-free lubrication for crusher and preparation method thereof |
| CN111009791A (en) * | 2019-12-26 | 2020-04-14 | 河南和实科技有限公司 | A grounding device composite metal friction disc and its production process |
| CN111471888A (en) * | 2020-05-09 | 2020-07-31 | 南京工程学院 | Nano intermetallic compound dispersion strengthening high-conductivity wear-resistant copper alloy and manufacturing method and application thereof |
| CN114645155A (en) * | 2022-03-23 | 2022-06-21 | 浙江惟精新材料股份有限公司 | High-strength copper alloy and preparation method thereof |
-
2016
- 2016-12-30 CN CN201611264835.3A patent/CN106756215B/en not_active Expired - Fee Related
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| 宋练鹏等: "高强耐磨Cu-Ni-Sn合金的研究", 《湖南有色金属》 * |
| 林国标等: "热处理对锡青铜合金组织和性能的影响", 《铸造》 * |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107779654A (en) * | 2017-11-09 | 2018-03-09 | 四川城际轨道交通材料有限责任公司 | A kind of train earthing or grounding means collection electroplax alloy material |
| CN108588476A (en) * | 2018-06-21 | 2018-09-28 | 新乡市海山机械有限公司 | Wear-resisting copper sheathing of a kind of oil-free lubrication for crusher and preparation method thereof |
| CN111009791A (en) * | 2019-12-26 | 2020-04-14 | 河南和实科技有限公司 | A grounding device composite metal friction disc and its production process |
| CN111471888A (en) * | 2020-05-09 | 2020-07-31 | 南京工程学院 | Nano intermetallic compound dispersion strengthening high-conductivity wear-resistant copper alloy and manufacturing method and application thereof |
| CN114645155A (en) * | 2022-03-23 | 2022-06-21 | 浙江惟精新材料股份有限公司 | High-strength copper alloy and preparation method thereof |
| CN114645155B (en) * | 2022-03-23 | 2023-01-13 | 浙江惟精新材料股份有限公司 | High-strength copper alloy and preparation method thereof |
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