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High-strength,high-elasticity and bending-resistant copper alloy as well as preparation method and application thereof

A copper alloy, high-elastic technology, applied in the field of alloys, can solve the problems of high cost, harmful to human body, high Sn content, etc.

Active Publication Date: 2021-05-28
浙江惟精新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, beryllium bronze alloys are generally used for components with high elasticity requirements, but beryllium in beryllium bronze is harmful to the human body; another widely used is tin phosphor bronze, which has excellent processing performance, ductility, Corrosion resistance and fatigue resistance, conventionally produced tin phosphor bronzes include QSn10-0.3, QSn9-0.3, QSn8-0.3 and QSn6.5-0.1, but the Sn content in tin phosphor bronze is high, resulting in high cost, and tin phosphor bronze Bronze has poor bending resistance

Method used

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  • High-strength,high-elasticity and bending-resistant copper alloy as well as preparation method and application thereof
  • High-strength,high-elasticity and bending-resistant copper alloy as well as preparation method and application thereof
  • High-strength,high-elasticity and bending-resistant copper alloy as well as preparation method and application thereof

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preparation example Construction

[0040]The present invention also provides a method for preparing the high-strength, high-elasticity and bending-resistant copper alloy described in the above technical solution, comprising the following steps:

[0041] The alloy raw materials are smelted and drawn in turn to obtain alloy strips;

[0042] The alloy strip is sequentially subjected to preliminary rolling, intermediate rolling, first annealing, first cold finish rolling, second annealing and second cold finish rolling to obtain the high-strength, high-elasticity and bending-resistant copper alloy.

[0043] In the invention, alloy raw materials are smelted and cast in sequence to obtain alloy strips.

[0044] In the present invention, there is no special limitation on the element ratio of the alloy raw material, and the element composition of the high-strength, high-elasticity and bending-resistant copper alloy shall prevail. In the present invention, the alloy raw materials preferably include copper block, copper...

Embodiment 1

[0071] The raw material alloys are: copper block, copper foil, nickel block, iron block, phosphorus element, magnesium block, tin block, lead block, zinc block, copper-titanium master alloy (the element composition is 1.0wt.% of Ti and the balance of Cu ) and copper-vanadium master alloy (element composition is 4.0wt.% of V and the balance of Cu); the ratio of alloy elements is shown in Table 1.

[0072] Preparation method: Put the copper block in a non-vacuum induction furnace, melt it into copper liquid at 1200 ° C, add nickel block and iron block to the copper liquid, add elemental phosphorus after melting, add charcoal powder as a covering agent, and pour into the obtained smelting system Add copper foil-wrapped magnesium block, copper-titanium master alloy and copper-vanadium master alloy, add copper-foil-wrapped tin block and copper-foil-wrapped lead block before taking out the furnace, keep warm for 8 minutes and then stand at 1200°C for 7 minutes to obtain alloy melt l...

Embodiment 2

[0076] The raw material alloys are: copper block, copper foil, nickel block, iron block, phosphorus element, magnesium block, tin block, lead block, zinc block and copper-titanium master alloy (the element composition is 1.0wt.% of Ti and the balance of Cu ); see Table 1 for the ratio of alloying elements.

[0077] Preparation method: Put the copper block in a non-vacuum induction furnace, melt it into copper liquid at 1210 ° C, add nickel block and iron block to the copper liquid, add elemental phosphorus after melting, add charcoal powder as a covering agent, and pour into the obtained smelting system Add copper-foil-wrapped magnesium block and copper-titanium intermediate alloy, add copper-foil-wrapped tin block and copper-foil-wrapped lead block before leaving the furnace, heat for 8 minutes and then stand at 1205°C for 8 minutes to obtain alloy melt;

[0078] After the alloy melt is obtained, the obtained alloy melt is drawn and cast at 1160° C., and the temperature of th...

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Abstract

The invention belongs to the technical field of alloys, and particularly relates to a high-strength, high-elasticity and bending-resistant copper alloy as well as a preparation method and application thereof. The high-strength, high-elasticity and bending-resistant copper alloy is prepared from the following elements in percentage by mass: 0.02-3.2% of Zn, 0.01-2.2% of Mg, 1.5-2.0% of Sn, 0.05-0.3% of Fe, 0.05-0.19% of Ni, 0.001-0.003% of Pb, 0.01-0.05% of P, 0.01-0.1% of strengthening elements and the balance of Cu, wherein the strengthening element is one or more of Ti, Co and V. The embodiment shows that the high-strength, high-elasticity and bending-resistant copper alloy has the tensile strength of 280-680 MPa, the ductility of 3-40%, the conductivity of 30-35% IACS, the elastic modulus of 108-113 GPa, and is bending-resistant.

Description

technical field [0001] The invention belongs to the technical field of alloys, in particular to a high-strength, high-elasticity and bending-resistant copper alloy, a preparation method and application thereof. Background technique [0002] High-strength and high-elastic copper alloy materials have excellent characteristics of high strength, good elasticity, fatigue resistance, small elastic hysteresis and corrosion resistance, and are widely used in the fields of manufacturing information industry, communication engineering, instrumentation and automobile industry, especially as electrical connection Component alloys. At present, beryllium bronze alloys are generally used for components with high elasticity requirements, but beryllium in beryllium bronze is harmful to the human body; another widely used is tin phosphor bronze, which has excellent processing performance, ductility, Corrosion resistance and fatigue resistance, conventionally produced tin phosphor bronzes inc...

Claims

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Application Information

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IPC IPC(8): C22C9/02C22C9/04C22F1/08B21B1/16C22C1/02C22C9/00
CPCB21B1/16C22C1/02C22C9/00C22C9/02C22C9/04C22F1/08
Inventor 王建立刘志成韩淑敏廖骏骏王轶胡文江张洪福洪晴胜李凌锋李钊赵勇张东宝
Owner 浙江惟精新材料股份有限公司
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