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High-strength copper-iron-phosphorus alloy and production method thereof

A production method, copper-iron-phosphorus technology, applied in high-strength copper-iron-phosphorus alloy and its production field, can solve problems such as difficulty in achieving hardness, performance deviation, and difficulty in reaching 540Mpa in tensile strength, so as to improve alloy strength and ensure electrical conductivity The effect of improving performance and mechanical properties

Inactive Publication Date: 2016-01-06
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

[0004] However, the improvement of the strength and hardness of this type of material is a relatively difficult problem to solve. Generally, the performance is biased towards the lower limit of the standard range.
The hardness is difficult to reach above 160HV, and the tensile strength is difficult to reach above 540Mpa, which cannot meet the market demand

Method used

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  • High-strength copper-iron-phosphorus alloy and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A high-strength copper-iron-phosphorus alloy comprises the following elements by weight percentage: Fe2.5%; P0.13%; Zn0.15%; Pb0.03%; Ni0.09%; Sn0.1%;

[0018] A production method of a high-strength copper-iron-phosphorus alloy, comprising the following steps: mixing raw materials according to the formula ratio, heating, casting, hot rolling, cold rolling, heat treatment, cleaning, stretching and straightening, and heat treatment to obtain a finished product; removing the finished product from annealing Except for the process, other processes are existing processes. The annealing process for the finished product is: heating to 200°C at a heating rate of 2°C / min, holding the heat for 3 hours, cooling with the furnace, and releasing it below 50°C. The annealing process maintains a hydrogen protective atmosphere.

Embodiment 2

[0020] A high-strength copper-iron-phosphorus alloy comprises the following elements by weight percentage: Fe2.3%; P0.15%; Zn0.2%; Pb0.02%; Ni0.04%; Sn0.06%;

[0021] A production method of a high-strength copper-iron-phosphorus alloy, comprising the following steps: mixing raw materials according to the formula ratio, heating, casting, hot rolling, cold rolling, heat treatment, cleaning, stretching and straightening, and heat treatment to obtain a finished product; removing the finished product from annealing Except for the process, other processes are existing processes. The annealing process for the finished product is: heating to 210°C at a heating rate of 3°C / min, holding the heat for 3 hours, cooling with the furnace, and releasing it below 50°C. The annealing process maintains a hydrogen protective atmosphere.

Embodiment 3

[0023] A high-strength copper-iron-phosphorus alloy, including the following elements by weight percentage: Fe2.1%; P0.1%; Zn0.1%; Pb0.01%; Ni0.06%; Sn0.07%;

[0024] A production method of a high-strength copper-iron-phosphorus alloy, comprising the following steps: mixing raw materials according to the formula ratio, heating, casting, hot rolling, cold rolling, heat treatment, cleaning, stretching and straightening, and heat treatment to obtain a finished product; removing the finished product from annealing Except for the process, other processes are existing processes. The annealing process for the finished product is: heating to 210°C at a heating rate of 4°C / min, holding the heat for 3 hours, cooling with the furnace, and releasing it below 50°C. The annealing process maintains a hydrogen protective atmosphere.

[0025] The mechanical properties of the products prepared in Examples 1-3 and the C19400 alloy in the traditional process were compared, and the results are sho...

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Abstract

The invention discloses a high-strength copper-iron-phosphorus alloy and a production method thereof. The formula of the copper-iron-phosphorus alloy comprises the following elements in percentage: 2.1-2.6% of Fe, 0.015-0.15% of P, 0.05-0.20% of Zn, Pb of which the percentage is smaller than or equal to 0.03%, 0.01-0.1% of Ni, 0.01-0.1% of Sn, and the balance being Cu. Compared with the prior art, according to the copper-iron-phosphorus alloy disclosed by the invention, trace amounts of Sn elements and Ni elements, which play a solution strengthening role in the alloy, are added in the raw material formula, so that the hardness of the materials under various states can be improved by nearly 5-10%. During the production of the copper-iron-phosphorus alloy disclosed by the invention, the condition of low-temperature annealing is adopted, so that on one hand, atoms of solution strengthening elements Sn and Ni are clustered at the periphery of a dislocation generated after being processed and hardened so as to perform dislocation pinning, and the strength of the alloy is improved; on the other hand, through low-temperature annealing, a short-range ordered structure formed in an organization and the dislocation perform interaction, so that the alloy is hardened.

Description

technical field [0001] The invention belongs to the field of copper-iron-phosphorus alloy manufacture, and in particular relates to a high-strength copper-iron-phosphorus alloy and a production method thereof. Background technique [0002] Copper-iron-phosphorus alloy C19400 alloy composition: Fe2.1% ~ 2.6%; P0.015% ~ 0.15%; Zn0.05% ~ 0.20%; Pb0.03%; Cu balance. The alloy is made into a finished product through processes such as casting, hot rolling, cold rolling, heat treatment, cleaning, stretch bending and straightening. [0003] According to the JIS standard, it is divided into different states according to the performance. Normally, the hardness of the O state is about 90-110HV, the tensile strength is 330-380Mpa, and the conductivity is ≥60%IACS; the hardness of the product in the 1 / 2H state is about 115-137HV, the tensile strength is 365-435Mpa, and the conductivity is ≥60 %IACS; the hardness of the product in the H state is about 125-145HV, the tensile strength is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00
Inventor 付真荣李岩叶东皇
Owner 安徽鑫科铜业有限公司
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