CN101928858B - High-strength wear-resistant copper alloy and manufacturing method thereof - Google Patents
High-strength wear-resistant copper alloy and manufacturing method thereof Download PDFInfo
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- CN101928858B CN101928858B CN2010102769208A CN201010276920A CN101928858B CN 101928858 B CN101928858 B CN 101928858B CN 2010102769208 A CN2010102769208 A CN 2010102769208A CN 201010276920 A CN201010276920 A CN 201010276920A CN 101928858 B CN101928858 B CN 101928858B
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Abstract
The invention discloses high-strength wear-resistant copper alloy and a manufacturing method thereof, and the copper alloy contains the following components in percentage by weight: 57-63 percent of Cu, 4.3-5.2 percent of Al, 2-3 percent of Ni, 1.2-2 percent of Ti and 26.8-35.4 percent of Zn. The copper alloy has the advantages that: the material has good comprehensive mechanical properties, and ring gears processed by the material have excellent wear performance; the Al enhances the strength of material matrix, the Ni enhances the toughness of the matrix material, and the Ti participates in forming the strengthening phase, thereby not only enhancing the strength of the material matrix but also enhancing the wear resistance of the material.
Description
Technical field
The present invention relates to the Metal smelting technical field, a kind of specifically high-strength wear-resistant copper alloy and method of manufacture thereof.
Background technology
The automobile component that speed change is used in the wheel box during synchro converter ring, material is a copper alloy generally speaking.When high engine speeds is rotated, require the required time of moving gear and quiet gear meshing short, engagement is wanted steadily.Reactive force when being reflected in gearshift is little, and it is quick that gearshift is wanted.The frictional coefficient of this synchro high-abrasive material of will seeking common ground will be got well, and it is high that wear resistance is wanted, and frictional coefficient and wear resistance are contradiction and unification between the two, when improving wear resistance, will certainly improve the hardness of material, and frictional coefficient was just little when hardness was high; Increase frictional coefficient and generally can increase copper content, the copper content increase can cause ring gear locking phenomenon (ring gear sticks on the cone), the gearshift difficulty.
Summary of the invention
The objective of the invention is to study good high-strength wear-resistant copper alloy of a kind of wear resisting property and method of manufacture thereof.
A kind of high-strength wear-resistant copper alloy, its weight percentages of components is following:
Cu 57-63％
Al 4.3-5.2％
Ni 2-3％
Ti 1.2-2％
Zn 26.8-35.4％。
This high-strength wear-resistant copper alloy is mechanical tensile strength to be 747.23MPa, and unit elongation is 12%.
The wear hardness of this high-strength wear-resistant copper alloy can be stable be controlled in the 0.3mm.
A kind of high-strength wear-resistant copper alloy method of manufacture, its step is following:
(1) by composition weight fusing Cu, Al, Ni simple substance, temperature overheating to 1100 ℃, insulation is left standstill more than the 10min;
(2) reduce below the temperature to 1000 ℃, add Zn by composition weight;
(3) after Zn melts fully, add sodium aluminum fluoride and carry out the refining slagging-off;
(4) temperature rises to 1100 ℃ and adds the simple substance titanium by composition weight in batches, leaves standstill 10min after the fusing fully;
(5) sampling, the adjustment composition is to qualified;
(6) adopt vertical D.C.casting to cast ingot casting.
The advantage of a kind of high-strength wear-resistant copper alloy of the present invention and method of manufacture thereof is: this material has good comprehensive mechanical performance, and the ring gear wear hardness of processing is excellent; The intensity of metal A l strongthener matrix, metal Ni improve body material toughness, metal Ti participates in forming strengthening phase, improve the intensity of the matrix of material on the one hand, and improve material wear ability.
Embodiment
Embodiment one
A kind of high-strength wear-resistant copper alloy, its composition weight is following:
Cu 575kg
Al 51.5kg
Ni 29.6kg
Ti 19.4kg
Zn 324.5kg。
This high-strength wear-resistant copper alloy hardness is 101.2HRB, and mechanical can tensile strength be 747.47MPa, and unit elongation is 12%, and wear hardness is 0.11mm.
A kind of high-strength wear-resistant copper alloy method of manufacture, its step is following:
(1) fusing 575kgCu, 51.5kgAl, 29.6kgNi simple substance, temperature overheating to 1100 ℃, insulation is left standstill more than the 10min;
(2) reduce below the temperature to 1000 ℃, add 324.5kgZn;
(3) after Zn melts fully, add sodium aluminum fluoride and carry out the refining slagging-off;
(4) temperature rises to 1100 ℃ and adds 19.4kg simple substance titanium in batches, leaves standstill 10min after the fusing fully;
(5) sampling, the adjustment composition is to qualified;
(6) adopt vertical D.C.casting to cast ingot casting.
Embodiment two
A kind of high-strength wear-resistant copper alloy, its composition weight is following:
Cu 590.2kg
Al 46.9kg
Ni 24.7kg
Ti 17.1kg
Zn 321.1kg。
This high-strength wear-resistant copper alloy hardness is 95.5HRB, and mechanical can tensile strength be 747.23MPa, and unit elongation is 12%, and wear hardness is 0.16mm.
A kind of high-strength wear-resistant copper alloy method of manufacture, its step is following:
(1) fusing 590.2kgCu, 46.9kgAl, 24.7kgNi simple substance, temperature overheating to 1100 ℃, insulation is left standstill more than the 10min;
(2) reduce below the temperature to 1000 ℃, add 321.1kgZn;
(3) after Zn melts fully, add sodium aluminum fluoride and carry out the refining slagging-off;
(4) temperature rises to 1100 ℃ and adds 17.1kg simple substance titanium in batches, leaves standstill 10min after the fusing fully;
(5) sampling, the adjustment composition is to qualified;
(6) adopt vertical D.C.casting to cast ingot casting.
Embodiment three
A kind of high-strength wear-resistant copper alloy, its weight percentages of components is following:
Cu 610.3kg
Al 44.9kg
Ni 20.8kg
Ti 12.9kg
Zn 311.1kg。
This high-strength wear-resistant copper alloy hardness is 96HRB, and mechanical can tensile strength be 742.78MPa, and unit elongation is 12%, and wear hardness is 0.19mm.
A kind of high-strength wear-resistant copper alloy method of manufacture, its step is following:
(1) fusing 610.3kgCu, 44.9kg Al, 20.8kgNi simple substance, temperature overheating to 1100 ℃, insulation is left standstill more than the 10min;
(2) reduce below the temperature to 1000 ℃, add 311.1kgZn;
(3) after Zn melts fully, add sodium aluminum fluoride and carry out the refining slagging-off;
(4) temperature rises to 1100 ℃ and adds 12.9kg simple substance titanium in batches, leaves standstill 10min after the fusing fully;
(5) sampling, the adjustment composition is to qualified;
(6) adopt vertical D.C.casting to cast ingot casting.
The invention is not restricted to above embodiment, can realize a plurality of different embodiment according to the difference of temperature, component.
Claims (3)
1. high-strength wear-resistant copper alloy, it is characterized in that: its weight percentages of components is following:
2. high-strength wear-resistant copper alloy according to claim 1 is characterized in that: this high-strength wear-resistant copper alloy mechanical property tensile strength is 747.23Mpa, and unit elongation is 12%.
3. high-strength wear-resistant copper alloy method of manufacture according to claim 1, it is characterized in that: its step is following:
(1) by composition weight fusing Cu, Al, Ni simple substance, temperature overheating to 1100 ℃, insulation is left standstill more than the 10min;
(2) reduce below the temperature to 1000 ℃, add Zn by composition weight;
(3) after Zn melts fully, add sodium aluminum fluoride and carry out the refining slagging-off;
(4) temperature rises to 1100 ℃ and adds the simple substance titanium by composition weight in batches, leaves standstill 10min after the fusing fully;
(5) sampling, the adjustment composition is to qualified;
(6) adopt vertical D.C.casting to cast ingot casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102769208A CN101928858B (en) | 2010-09-01 | 2010-09-01 | High-strength wear-resistant copper alloy and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102769208A CN101928858B (en) | 2010-09-01 | 2010-09-01 | High-strength wear-resistant copper alloy and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN101928858A CN101928858A (en) | 2010-12-29 |
| CN101928858B true CN101928858B (en) | 2012-03-14 |
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| CN2010102769208A Active CN101928858B (en) | 2010-09-01 | 2010-09-01 | High-strength wear-resistant copper alloy and manufacturing method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018783A (en) * | 2015-07-24 | 2015-11-04 | 武汉泛洲中越合金有限公司 | Copper alloy matrix material and preparation method thereof |
| CN109706341B (en) * | 2019-01-18 | 2021-02-12 | 沈阳金科有色产品研制有限公司 | Cobalt-containing high-strength high-hardness wear-resistant copper alloy and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3309451B2 (en) * | 1992-11-10 | 2002-07-29 | 三菱マテリアル株式会社 | Copper alloy valve guide for Ti alloy valve |
| DE4240157A1 (en) * | 1992-11-30 | 1994-06-01 | Chuetsu Metal Works | Brass-alloy coated synchroniser ring surface - exhibits good wear-resistance and adhesion, said synchroniser rings for use in gears of high performance vehicles. |
| JP3279109B2 (en) * | 1994-10-27 | 2002-04-30 | 三菱マテリアル株式会社 | Copper alloy synchronizer ring with excellent wear resistance |
| DE19548124C2 (en) * | 1995-12-21 | 2002-08-29 | Euroflamm Gmbh | Friction body and method for producing such |
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