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Elastic alloy brass with high strength

An elastic alloy, high-strength technology, applied in the field of copper alloys, can solve the problems of low strength and elasticity of ordinary brass, unable to replace tin phosphor bronze, and high production cost, saving scarce resource metal copper, reducing material costs, and cost-effective. Effect

Inactive Publication Date: 2011-11-02
菏泽广源铜带有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, tin phosphor bronze is mainly used for copper products such as electronic and electrical connectors. Tin phosphor bronze has defects such as reverse segregation in the as-cast state, and the production cost is high. With the increasing resource consumption and the high copper price, in order to reduce The cost of raw materials and the consumption of copper resources, the use of brass instead of tin phosphor bronze has been widely proposed, but the strength and elasticity of ordinary brass are lower than tin phosphor bronze, so it cannot replace tin phosphor bronze

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] This embodiment is composed of the following components in weight percentage: copper 62.0%, tin 1.5%, phosphorus 0.02%, and the balance is zinc. The process of using it to make copper strips is as follows: First, the alloy is designed according to the above component proportions, and the 15mm thick cast slab is produced after horizontal continuous casting, and then homogenized and annealed at 500-560 ° C. The annealing time is 4-5 hours. Then face milling, the thickness after milling is 12.5 ~ 13.5mm, then rough rolling to 3.0mm, then after several times of intermediate annealing and cold rolling, the surface is brushed after each annealing for thickness below 3.0mm, the annealing temperature is 480 ~ 560°C , the annealing time is 4 to 5 hours, and then the finished product is rolled, the thickness of the finished product is determined by the customer's requirements, and finally the finished product is finished and packaged.

Embodiment 2

[0014] This embodiment is composed of the following components in weight percentage: copper 62.0%, tin 0.8%, phosphorus 0.03%, and the balance is zinc. The process of using it to make copper strips is as follows: First, the alloy is designed according to the above component proportions, and after horizontal continuous casting, a 17mm thick cast slab is produced, which is homogenized and annealed at 500-560°C for 4-5 hours, and then Face milling, the thickness after milling is 14.5~15.5mm, then rough rolling to 3.0mm, then after several times of intermediate annealing and cold rolling, the surface is brushed after each annealing for thickness below 3.0mm, the annealing temperature is 480~560℃, The annealing time is 4 to 5 hours, and then the finished product is rolled. The thickness of the finished product is determined by the customer's requirements, and finally the finished product is packaged.

Embodiment 3

[0016] This embodiment is composed of the following components by weight percentage: copper 63.5%, tin 1.5%, phosphorus 0.04%, and the balance is zinc. The process of using it to make copper strips is as follows: First, the alloy is designed according to the above component proportions, and the cast slab is produced after semi-continuous casting. The whole package is qualified bar.

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Abstract

The invention provides elastic alloy brass with high strength, relating to the field of copper alloys. The elastic alloy brass with the high strength is characterized in that the strength and elasticity of the alloy are improved through adding elements of tin and phosphorus on the basis of a copper-zinc binary alloy; the alloy brass comprises the following components in percentage by weight: 59.0-65.0 % of copper, 0.2-1.5 % of tin and 0.015-0.15 % of phosphorus as well as the balance of zinc and not more than 0.05 % of inevitable impurities; and the alloy is prepared by smelting and rolling. The elastic alloy brass with the high strength, provided by the invention, has the advantages of reasonable mixing ratio design and higher performance cost; compared with the copper content of 93.0 % in the tin-phosphorus brass, the copper content in the alloy brass is reduced by 28.0 % and domestic scarce resource copper metal is saved. The elastic alloy brass with the high strength, provided by the invention, is mainly used for manufacturing electronic appliance connectors, springs, connectors, switches, contacts and the like as well as various copper alloy parts used under the marine environment; hardness and elastic modulus which are equivalent to those of the tin-phosphorus brass are obtained; and good dezincification corrosion resistance is also obtained; and the tin-phosphorus brass can be partially replaced with the elastic alloy brass.

Description

Technical field [0001] The invention relates to the field of copper alloys, in particular to high-strength elastic alloy brass. Background technique [0002] In the prior art, tin phosphor bronze is mainly used for copper products such as electronic and electrical connectors. Tin phosphor bronze has defects such as reverse segregation in the as-cast state, and the production cost is high. With the increasing resource consumption and the high copper price, in order to reduce The cost of raw materials and the consumption of copper resources, the use of brass instead of tin phosphor bronze has been widely proposed, but the strength and elasticity of ordinary brass are lower than tin phosphor bronze, so it cannot replace tin phosphor bronze. Contents of the invention [0003] The purpose of the present invention is to provide high-strength elastic alloy brass, which can not only meet the requirements of tensile strength and elastic performance through alloy design, but also re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04
Inventor 冯天杰韩新俊刘洪勤彭作华常保平马力于连生徐继玲孟祥东赵新建
Owner 菏泽广源铜带有限公司
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