CN102534296A - Copper alloy material - Google Patents
Copper alloy material Download PDFInfo
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- CN102534296A CN102534296A CN2012100461526A CN201210046152A CN102534296A CN 102534296 A CN102534296 A CN 102534296A CN 2012100461526 A CN2012100461526 A CN 2012100461526A CN 201210046152 A CN201210046152 A CN 201210046152A CN 102534296 A CN102534296 A CN 102534296A
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- copper alloy
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Abstract
The invention provides a high-performance copper alloy material which comprises the following components in percentage by weight: 56.5-60.0% of Cu, 0.7-3.3% of Pb, 0.2-0.8% of Al, 0.02-0.05% of As, 0.88-0.92% of Sn, 0.78-0.82% of Fe, 0.58-0.62% of Ni and the balance of Zn and inevitable impurity elements. The high-performance copper alloy material has the advantages of high plasticity, high strength and low cost, can be subjected to hot forging, and can be easily cut.
Description
Technical field
The present invention relates to field of metallurgy, particularly a kind of Cu alloy material that is used to make processing.
Background technology
Recent two decades comes, China's copper and copper alloy processing industry fast development.Kind is increasing, and output and consumption are doubled and redoubled, and the novel process new equipment continues to bring out.The one's best quality of the uniqueness that copper and alloy thereof had and characteristic, along with science and technology development is understood and grasped by people step by step, thereby increasingly extensive in all departments of national economy, obtaining used.
But copper alloy contains a large amount of impurity elements, and the copper material processing characteristics is had very big influence.Aspect the copper product processing in civilian each field; GB 59 copper alloys are owing to have good physicals, mechanical property and machinability; Obtained using widely in departments such as machinery, light industry, clock and watch, but its as-cast structure is thick, mechanical property is lower; Because low, the easy to leak of casting strength is difficult to satisfy high performance requirement.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can be used for forge hot processing and machining, forge that efficient is high, the high-performance copper alloy material of the high and low cost of ratio of briquetting.
The technical scheme that realizes above-mentioned purpose is following:
A kind of Cu alloy material comprises following component in percentage by weight: Cu:56.5-60.0%, Pb:0.7-3.3%; Al:0.2-0.8%, As:0.02-0.05%, Sn:0.88-0.92%; Fe:0.78-0.82%, Ni:0.58-0.62%, all the other are Zn and unavoidable impurities element.。
Preferably, said Cu alloy material comprises following component in percentage by weight: Cu:56.17%, Pb:3%, Fe:0.8%, As:0.03%, Al:0.5%, Ni:0.6%, Sn:0.9%, Zn:36.5%, impurity element 1.5%.
Preferably, said Cu alloy material comprises following component in percentage by weight: Pb:0.7%, Fe:0.8%, As:0.02%, Al:0.5%, Ni:0.6%, Sn:0.9%, Zn:37%, impurity element 1.5%, Cu:57.98%.
Preferably, said Cu alloy material comprises following component in percentage by weight: Pb:3.3%, Fe:0.8%, As:0.05%, Al:0.8%, Ni:0.6%, Sn:0.9%, Zn:36%, impurity element 1.5%, Cu:56.05%.
The principle of work of above-mentioned technical scheme is: because the zinc of adjustment in the copper alloy, iron, lead, nickel, etc. the content of metallic element; And add metallic elements such as an amount of aluminium, tin; It is learnt from other's strong points to offset one's weaknesses each other; Obtained optimum combination, obtained to have the forge hot processing characteristics, cutting ability, plasticity, intensity is unusual ideal high property copper alloy cheaply all.
Zinc content is at the brass below 35%, and the microstructure under the room temperature is made up of monophasic αGu Rongti, is called alpha brass.
The brass of zinc content in the 36%-46% scope, the microstructure under the room temperature are called (alpha+beta) brass (alpha-beta brass) by (alpha+beta) two phase composites.
Zinc content surpasses the brass of 46%-50%, and the microstructure under the room temperature only by the β phase composite, is called beta brass.
β at high temperature has very high plasticity mutually, and β phase (ordered solid solution) character under the low temperature is crisp firmly.So (alpha+beta) brass should forge under hot.Zinc content is crisp firmly because of performance greater than the beta brass of 46%-50%, can not carry out press working.
So should can carry out hot-work by brass, can keep enough plasticity and intensity to carry out cold working again, need its tissue performance between α and (alpha+beta) alpha-beta brass, so need control zinc content at 32.1%-38.8%, individuality is partial to the α phase.
The aluminium element that adds 0.3%-0.8% in the copper alloy helps improving the plasticity of alloy, and it is big to form the trend of β phase, and strengthening effect is good.In addition, the ionization tendency of copper alloy surface aluminium is bigger than zinc, can be preferentially with corrosive gases or solution in oxygen combine, form the sull of hard and compact, make alloy have good solidity to corrosion.
Suitably carry plumbic content, its content is controlled in the 0.7-3.3%,, make copper alloy can carry out high speed cutting, can obtain bright and clean surface, improve the quality of products, increase substantially production efficiency simultaneously because lead element has lubricant effect in the copper alloy.So the lead element upper content limit is controlled in the permission content range, can farthest utilize plumbous lubrication, improve the cutting ability and the surface quality of copper alloy.
In addition, through a large amount of experiments, optimum is selected the content to 0.8% of adjustment iron, the cutting ability that HS that iron solid solution matter shows in the copper material and hardness have significantly improved copper material.HS and hardness can to a certain degree increase cutting speed, avoid because of insufficient strength, and the high temperature that high speed cutting brings makes product generation deformation or because of hardness is not enough, can't be by both dimensioning cuttings and the audio and video products quality.
Optimum is selected and is added 0.9% tin, can not only improve alloy strength and hardness, also can suppress dezincify, improves the solidity to corrosion of brass.
Control nickel content most preferably makes it remain on 0.6%, and nickel is the important element in the copper alloy; Can enlarge the alpha phase zone of brass; In copper alloy, add nickel, can obtain to have the high-strength alloy of a spot of β phase, can improve alloy toughness and solidity to corrosion; It is cold that copper alloy can be born, hot-work.
Add 0.02-0.05% arsenic, the solubleness of arsenic in brass is less than 1%, and the excessive frangible compounds that then produces is distributed on the crystal boundary, reduces the plasticity of brass, can prevent dezincification of brass, improves the solidity to corrosion of brass.
Beneficial effect of the present invention
The present invention through the zinc in adjustment GB 59 copper alloys, iron, lead, nickel, etc. the content of metallic element; And add metallic elements such as an amount of aluminium, tin and obtain a kind of high performance Cu alloy material; This high-performance copper alloy material can be used for forge hot processing and machining, have forge that efficient is high, ratio of briquetting is high, cost is low etc. advantage.
Embodiment
Below through specific embodiment the present invention is done further elaboration.
Embodiment 1
Cu:56.17%, Pb:3%, Fe:0.8%, As:0.03%, Al:0.5%, Ni:0.6%, Sn:0.9%, Zn:36.5%, impurity element 1.5%.
The high property copper alloy and the processing condition of HPb59-1 leaded brass of the prior art in forging and machining process of present embodiment are compared, and its result sees table 1:
Table 1: the high property copper alloy of present embodiment and HPb59-1 leaded brass forge and the contrast of machining condition
| Alloy | Tensile strength | Yield-point | Annealing temperature | Eliminate internal stress low-temperature annealing temperature | Hot processing temperature |
| HPb59-1 | 340N/mm 2 | 400Mpa | 600-650℃ | 285℃ | 640-780℃ |
| Embodiment | 428.9N/mm 2 | 530Mpa | 500-700℃ | 270℃ | 600-780℃ |
Contrast high property copper alloy of the present invention and HPb59-1 leaded brass ratio of briquetting, tooling cost, working (machining) efficiency and the quality product in forging and machining process.
Aspect forging, high property copper alloy forging molding rate of the present invention is higher than GB leaded brass 12%, and it is low by 8% to forge cost simultaneously, and forging efficient is high by 10.3%;
The machining aspect, this high property copper alloy machining rate of becoming a useful person is higher than GB leaded brass 5%, and tooling cost reduces by 8% simultaneously, and processing quality is excellent, and working (machining) efficiency is high by 13.2%.
Embodiment 2
The weight percent of the composition of the high-performance copper alloy material of present embodiment is: Cu:57.98%, Pb:0.7%, Fe:0.8%, As:0.02%, Al:0.5%, Ni:0.6%, Sn:0.9%, Zn:37%, impurity element 1.5%.
The high property copper alloy and the processing condition of HPb59-1 leaded brass of the prior art in forging and machining process of present embodiment are compared, and its result sees table 2:
Table 2: the high property copper alloy of present embodiment and HPb59-1 leaded brass forge and the contrast of machining condition
| Alloy | Tensile strength | Yield-point | Annealing temperature | Eliminate internal stress low-temperature annealing temperature | Hot processing temperature |
| HPb59-1 | 340N/mm 2 | 400Mpa | 600-650℃ | 285℃ | 640-780℃ |
| Embodiment | 402.67N/mm 2 | 498Mpa | 550-680℃ | 285℃ | 620-780℃ |
Contrast high property copper alloy of the present invention and HPb59-1 leaded brass ratio of briquetting, tooling cost, working (machining) efficiency and the quality product in forging and machining process.
Aspect forging, high property copper alloy forging molding rate of the present invention is higher than GB leaded brass 11.2%, and it is low by 8% to forge cost simultaneously, and forging efficient is high by 9.33%;
The machining aspect, this high property copper alloy machining rate of becoming a useful person is higher than GB leaded brass 3%, and tooling cost reduces by 8% simultaneously, and processing quality is excellent, and working (machining) efficiency is high by 10.6%.
Embodiment 3
Cu alloy material according to claim 1 is characterized in that, comprises following component in percentage by weight: Cu:56.05%, Pb:3.3%; Fe:0.8%, As:0.05%, Al:0.8%, Ni:0.6%; Sn:0.9%, Zn:36%, impurity element 1.5%.
The high property copper alloy and the processing condition of HPb59-1 leaded brass of the prior art in forging and machining process of present embodiment are compared, and its result sees table 3:
Table 3: the high property copper alloy of present embodiment and HPb59-1 leaded brass forge and the contrast of machining condition
| Alloy | Tensile strength | Yield-point | Annealing temperature | Eliminate internal stress low-temperature annealing temperature | Hot processing temperature |
| ?HPb59-1 | 340N/mm 2 | 400Mpa | 600-650℃ | 285℃ | 640-780℃ |
| Embodiment | 439.06N/mm 2 | 500Mpa | 545-700℃ | 290℃ | 640-750℃ |
Contrast high property copper alloy of the present invention and HPb59-1 leaded brass ratio of briquetting, tooling cost, working (machining) efficiency and the quality product in forging and machining process.
Aspect forging, high property copper alloy forging molding rate of the present invention is higher than GB leaded brass 11%, and it is low by 8% to forge cost simultaneously, and forging efficient is high by 9.5%;
The machining aspect, this high property copper alloy machining rate of becoming a useful person is higher than GB leaded brass 5%, and tooling cost reduces by 8% simultaneously, and processing quality is excellent, and working (machining) efficiency is high by 12.7%.
More than be merely specific embodiment of the present invention, do not limit protection scope of the present invention with this; Not violating any replacement and the improvement of being done on the basis of the present invention, all belong to protection scope of the present invention.
Claims (4)
1. a Cu alloy material is characterized in that, comprises following component in percentage by weight: Cu:56.5-60.0%; Pb:0.7-3.3%, Al:0.2-0.8%, As:0.02-0.05%; Sn:0.88-0.92%; Fe:0.78-0.82%, Ni:0.58-0.62%, all the other are Zn and unavoidable impurities element.
2. Cu alloy material according to claim 1 is characterized in that, comprises following component in percentage by weight: Pb:3%, Fe:0.8%; As:0.03%, Al:0.5%, Ni:0.6%, Sn:0.9%; Zn:36.5%, impurity element 1.5%, Cu:56.17%.
3. Cu alloy material according to claim 1 is characterized in that, comprises following component in percentage by weight: Pb:0.7%, Fe:0.8%; As:0.02%, Al:0.5%, Ni:0.6%, Sn:0.9%; Zn:37%, impurity element 1.5%, Cu:57.98%.
4. Cu alloy material according to claim 1 is characterized in that, comprises following component in percentage by weight: Pb:3.3%, Fe:0.8%; As:0.05%, Al:0.8%, Ni:0.6%, Sn:0.9%; Zn:36%, impurity element 1.5%, Cu:56.05%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100461526A CN102534296A (en) | 2012-02-27 | 2012-02-27 | Copper alloy material |
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| CN2012100461526A CN102534296A (en) | 2012-02-27 | 2012-02-27 | Copper alloy material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109439957A (en) * | 2018-11-29 | 2019-03-08 | 路达(厦门)工业有限公司 | It is a kind of to be hot-forged the inexpensive brass alloys haveing excellent performance and its manufacturing method |
| CN109487118A (en) * | 2018-12-30 | 2019-03-19 | 镇江汇通金属成型有限公司 | A kind of processing technology of plate casting die |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030095887A1 (en) * | 2000-06-30 | 2003-05-22 | Dowa Mining Co., Ltd. | Copper-base alloys having resistance to dezincification |
| CN101225487A (en) * | 2008-01-15 | 2008-07-23 | 胡旭红 | Arsenic-containing low-lead brass alloy |
-
2012
- 2012-02-27 CN CN2012100461526A patent/CN102534296A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030095887A1 (en) * | 2000-06-30 | 2003-05-22 | Dowa Mining Co., Ltd. | Copper-base alloys having resistance to dezincification |
| CN101225487A (en) * | 2008-01-15 | 2008-07-23 | 胡旭红 | Arsenic-containing low-lead brass alloy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109439957A (en) * | 2018-11-29 | 2019-03-08 | 路达(厦门)工业有限公司 | It is a kind of to be hot-forged the inexpensive brass alloys haveing excellent performance and its manufacturing method |
| CN109487118A (en) * | 2018-12-30 | 2019-03-19 | 镇江汇通金属成型有限公司 | A kind of processing technology of plate casting die |
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Application publication date: 20120704 |