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A high-performance tin phosphor bronze strip and its production method

A technology of high-performance tin-phosphorus and production method, applied in the field of high-performance tin-phosphorus bronze strip and its production, can solve the problems of affecting tolerance and rolling safety, increasing absolute reduction of thin strip rolling, etc.

Active Publication Date: 2017-12-26
安徽鑫科铜业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are currently the following problems in the production of tin-phosphorus bronze: for the casting process, the problems of microshrinkage, dendrite segregation and reverse segregation in the cast high-performance tin-phosphorus bronze alloy structure are the primary problems that need to be solved; the rolling process, High-performance thin strip products require large processing rate rolling to meet the product performance requirements. However, compared with thick strips, at the same processing rate, the absolute reduction of thin strip rolling will increase. Therefore, thin strips The pass distribution of the rolling process is the difficulty of rolling; the annealing process, the sticking caused by annealing can easily affect the tolerance and rolling safety during rolling, especially for thin strip products

Method used

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  • A high-performance tin phosphor bronze strip and its production method
  • A high-performance tin phosphor bronze strip and its production method
  • A high-performance tin phosphor bronze strip and its production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A high-performance tin phosphor bronze strip contains the substances shown in Example 1 in Table 2 by weight percentage.

[0027] The production method of the above-mentioned high-performance tin-phosphorus bronze strip includes the following processes: melting and casting—double-side milling—slab rolling in a rough rolling mill—edge trimming—intermediate annealing in a bell furnace—degreasing and cleaning—retaining in a finishing mill Bottom rolling—annealing at the bottom of the air cushion furnace—finished product rolling in the finishing mill—annealing of the finished product in the bell furnace—degreasing and cleaning—straightening the shape—slitting and packaging of the finished product; the parameters of each process are as shown in Table 3 Shown in embodiment 1.

[0028] A kind of production method of high-performance tin phosphor bronze strip, wherein the parameter of each process is as shown in embodiment 1 in table 3;

[0029] Wherein the traction process pa...

Embodiment 2

[0035] A high-performance tin phosphor bronze strip contains the substances shown in Example 2 in Table 2 by weight percentage.

[0036] The production method of the above-mentioned high-performance tin-phosphorus bronze strip includes the following processes: melting and casting—double-side milling—slab rolling in a rough rolling mill—edge trimming—intermediate annealing in a bell furnace—degreasing and cleaning—retaining in a finishing mill Bottom rolling—annealing at the bottom of the air cushion furnace—finished product rolling in the finishing mill—annealing of the finished product in the bell furnace—degreasing and cleaning—straightening the shape—slitting and packaging of the finished product; the parameters of each process are as shown in Table 3 Shown in embodiment 2.

[0037] A kind of production method of high-performance tin phosphor bronze strip, wherein the parameter of each process is as shown in embodiment 2 in table 3;

[0038] Wherein the traction process pa...

Embodiment 3

[0044] A high-performance tin phosphor bronze strip contains the substances shown in Example 3 in Table 2 by weight percentage.

[0045] The production method of the above-mentioned high-performance tin-phosphorus bronze strip includes the following processes: melting and casting—double-side milling—slab rolling in a rough rolling mill—edge trimming—intermediate annealing in a bell furnace—degreasing and cleaning—retaining in a finishing mill Bottom rolling—annealing at the bottom of the air cushion furnace—finished product rolling in the finishing mill—annealing of the finished product in the bell furnace—degreasing and cleaning—straightening the shape—slitting and packaging of the finished product; the parameters of each process are as shown in Table 3 Shown in embodiment 3.

[0046] A kind of production method of high-performance tin phosphor bronze strip, wherein the parameter of each process is as shown in embodiment 3 in table 3;

[0047]Wherein the traction process par...

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Abstract

The invention discloses a high-performance tin-phosphor bronze strip and a production method thereof. The high-performance tin-phosphor bronze strip comprises, by weight percent, 9% to 11% of Sn, 0.03% to 0.35% of P, not larger than 0.2% of Zn, not larger than 0.1% of Fe, not larger than 0.2% of Pb and the balance copper. Through the strict control over a casting technology, a rolling technology and an annealing technology of a tin-phosphor bronze alloy, a high-performance tin-phosphor bronze strip alloy product with the tin content ranging from 9% to 11% can be produced, and the application requirement of an IT industry and an electrommunication industry for a high-elasticity, high-strength and high-hardness copper alloy can be met.

Description

technical field [0001] The invention relates to a high-performance tin phosphor bronze strip and a production method thereof. Background technique [0002] Tin phosphor bronze has high strength; excellent elasticity; corrosion resistance, wear resistance, antimagnetic; easy brazing, electroplating; and good processing performance. In electronic and electrical equipment, it is widely used to make various components such as connectors, connectors, relays, contactors, wire terminals, contacts and springs. [0003] Currently, tin phosphor bronze strips, which are widely used in emerging fields of electronics, must have uniform properties, high surface quality and high dimensional accuracy. However, there are currently the following problems in the production of tin-phosphorus bronze: for the casting process, the problems of microshrinkage, dendrite segregation and reverse segregation in the cast high-performance tin-phosphorus bronze alloy structure are the primary problems to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/02B22D11/045C22F1/08
CPCB22D11/004B22D11/045C22C9/02C22F1/08
Inventor 赵莉谢宁
Owner 安徽鑫科铜业有限公司
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