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Alloy brass

A brass and alloy technology, applied in the field of alloy brass, can solve the problems of high production cost, inability to replace bronze, low strength and elasticity, etc., and achieve the effect of reducing the consumption of copper resources, saving the scarce resource metal copper, and high cost performance

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] At present, tin-phosphorus bronze is the main material for manufacturing various conductive elastic components such as electronic and electrical connectors, springs, connectors, switches, and contacts. Tin-phosphorus bronze has defects such as cast reverse segregation, and its production cost is high, so it is scarce in my country. Resources—Copper consumption is large. In order to reduce the cost of raw materials and copper resource consumption, the use of brass instead of tin phosphor bronze has been widely proposed, but because the strength and elasticity of ordinary brass are lower than that of tin phosphor bronze, it cannot replace bronze

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] This embodiment is composed of the following components by weight percentage: copper 66.5%, tin 0.7%, phosphorus 0.02%, and the balance is zinc. The production process 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 for 4-5 hours, and then the surface is milled. , the thickness after milling is 12.5-13.5mm, then rough rolling to 3.0mm, and 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, and the annealing time is 4 ~5 hours, then the finished product is rolled, the thickness of the finished product is determined according to the customer's requirements, and finally the finished product is finished and packaged.

Embodiment 2

[0013] This embodiment is composed of the following components by weight percentage: copper 67.5%, tin 1.2%, phosphorus 0.04%, and the balance is zinc. The production process is as follows: First, the alloy is designed according to the above component proportions, and the 17mm thick cast slab is produced after horizontal continuous casting, and then homogenized and annealed at 500-560°C for 4-5 hours, and then the surface is milled. , the thickness after milling is 14.5~15.5mm, then rough rolling to 3.0mm, and 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, and the annealing time is 4 ~5 hours, then the finished product is rolled, the thickness of the finished product is determined according to the customer's requirements, and finally the finished product is finished and packaged.

Embodiment 3

[0015] This embodiment is composed of the following components by weight percentage: copper 68.5%, tin 1.5%, phosphorus 0.06%, and the balance is zinc. The production process is as follows: Firstly, the alloy is designed according to the proportion of the above components, and the cast slab is produced after semi-continuous casting. After hot extrusion, it undergoes multiple intermediate annealing and cold rolling, drawing, and finally finishing and packaging. of bars.

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Abstract

The invention provides alloy brass relating to the field of copper alloys. The alloy brass is characterized by comprising the following components in percentage by weight: 65.0-69.0 % of copper, 0.3-1.8 % of tin and 0.015-0.15 % of phosphorus as well as the balance of zinc and not more than 0.3% of inevitable impurities; and the alloy brass is prepared by smelting and rolling. In the invention, the strength and elasticity of the alloy are improved by adding elements of tin and phosphorus on the basis of a common Cu-Zn brass; after being machined, the alloy brass obtains equivalent mechanical property and chemical property with the tin-phosphorus brass; a finished product also obtains more excellent elongation and dezincification corrosion resistance under a marine environment so that copper resources are saved and higher cost performance is obtained. The alloy brass provided by the invention is widely used for electronic appliance connectors, springs, connectors, switches, contacts and the like as well as various copper alloy parts used under the marine environment.

Description

Technical field [0001] The invention relates to the field of copper alloys, in particular to an alloy brass. Background technique [0002] At present, tin-phosphorus bronze is the main material for manufacturing various conductive elastic components such as electronic and electrical connectors, springs, connectors, switches, and contacts. Tin-phosphorus bronze has defects such as cast reverse segregation, and its production cost is high, so it is scarce in my country. Resources—Copper consumption is large. In order to reduce the cost of raw materials and copper resource consumption, the use of brass instead of tin phosphor bronze has been widely proposed. However, ordinary brass cannot replace bronze because its strength and elasticity are lower than that of tin phosphor bronze. Contents of the invention [0003] The purpose of the present invention is to make up for the deficiencies of the prior art, and to provide an alloy brass with better strength and elasticity that ca...

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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