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Lead-free copper alloy wire material and preparation method thereof

A lead-copper alloy and alloy wire technology, applied in the field of preparation of environment-friendly copper alloy materials, can solve problems such as difficulty in guaranteeing quality stability, inability to satisfy connectors, and easy cracks in wire blanks, and achieve low cost and production process. Short, low energy consumption

Active Publication Date: 2014-05-07
TIELING FUXING COPPER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the tellurium exceeds 0.4%, the continuous casting billet cannot realize cold deformation such as cold drawing and cold rolling, but another characteristic of the alloy is that under high temperature conditions, Cu2Te brittle phases will precipitate along the grain boundaries, and the wire billets are easily deformed during hot working. Cracks are generated, and the stability of quality is difficult to guarantee. Compared with the semi-continuous casting billet and hot-rolled wire billet production method, the production method of continuous casting billet and hot rolling wire billet has been greatly improved, but the energy consumption is still high and the yield is low. , can not meet the requirements of automatic production of connectors

Method used

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  • Lead-free copper alloy wire material and preparation method thereof

Examples

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example 1

[0018] Take 0.2 parts of tellurium, 0.02 parts of trace elements, and 99.78 parts of copper; wherein, the trace elements are composed of the following components and parts by weight: 0.009 parts of phosphorus, 0.001 parts of boron, and 0.01 parts of magnesium;

[0019] The process of horizontal continuous casting wire billet is to put the above components into the furnace body respectively. The furnace body is a cored induction melting furnace and a cored induction holding furnace installed through a submerged launder. The melting sequence in the cored induction melting furnace is First add 99.78 parts of copper, then add 0.01 parts of trace elements, and finally add 0.2 parts of tellurium. The temperature in the cored induction melting furnace is 1150°C-1250°C. When the chemical components in the cored induction melting furnace melt After the copper alloy liquid is formed, the copper alloy liquid in the cored induction melting furnace flows into the cored induction holding fur...

example 2

[0023] Take 0.4 parts of tellurium, 0.03 parts of trace elements, and 99.57 parts of copper; wherein, the trace elements are composed of the following components and parts by weight: 0.008 parts of phosphorus, 0.002 parts of boron, and 0.02 parts of magnesium;

[0024] The process of horizontal continuous casting wire billet is to put the above components into the furnace body respectively. The furnace body is a cored induction melting furnace and a cored induction holding furnace installed through a submerged launder. The melting sequence in the cored induction melting furnace is First add 99.57 parts of copper, then add 0.015 parts of trace elements, and finally add 0.4 parts of tellurium. The temperature in the cored induction melting furnace is 1150°C-1250°C. When the chemical components in the cored induction melting furnace melt After the copper alloy liquid is formed, the copper alloy liquid in the cored induction melting furnace flows into the cored induction holding fu...

example 3

[0027] Take 0.6 parts of tellurium, 0.05 parts of trace elements, and 99.35 parts of copper; wherein, the trace elements are composed of the following components and parts by weight: 0.01 parts of phosphorus, 0.012 parts of boron, and 0.028 parts of magnesium;

[0028]The process of horizontal continuous casting wire billet is to put the above components into the furnace body respectively. The furnace body is a cored induction melting furnace and a cored induction holding furnace installed through a submerged launder. The melting sequence in the cored induction melting furnace is First add 99.35 parts of copper, then add 0.03 parts of trace elements, and finally add 0.6 parts of tellurium. The temperature in the cored induction melting furnace is 1150°C-1250°C. When the chemical components in the cored induction melting furnace melt After the copper alloy liquid is formed, the copper alloy liquid in the cored induction melting furnace flows into the cored induction holding furn...

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Abstract

The invention relates to a lead-free copper alloy wire material which is prepared from the following components in parts by weight: 0.2-0.8 part of tellurium, 0.01-0.06 part of microelements and 99.14-99.79 parts of copper. The microelements are composed of the following components in parts by weight: 0.004-0.015 part of phosphorus, 0.001-0.015 part of boron and 0.005-0.03 part of magnesium. The preparation method of the lead-free copper alloy wire is technically characterized by comprising the following steps: horizontal continuous casting of a wire blank, hot-shrinkage deformation by continuous extrusion, cold-shrinkage deformation by multi-disk pulling. The wire blank can directly enter the continuous extrusion machine to a thermally-deformed wire blank with corresponding size of the finished product without heating, and a multi-disk pulling machine is utilized to obtain the wire blank with the size of the finished product by primary processing without annealing in the middle. The invention overcomes the difficulties of high cracking tendency in cold working and high-temperature brittleness in hot working in the tellurium-containing copper master alloy cast wire blank.

Description

technical field [0001] The invention relates to the technical field of preparation of environment-friendly copper alloy materials, in particular to a lead-free copper alloy wire material and a preparation method thereof. Background technique [0002] The connector is an indispensable main part of the electronics industry and the IT industry. With the development of the electronics industry and the IT industry, the connector gradually requires miniaturization and precision, which requires copper alloy materials to have higher reliability, stability, The requirements for high strength, high conductivity and low oxygen content are getting higher and higher. With the development of modern technology, the requirements for miniaturization and precision are required. The connector industry must realize high-efficiency automated mass production, which in turn requires material reliability. At the same time, it requires materials Easy-to-cut, large-length, heavy-duty, and easy-to-cut...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/00B22D11/045B21C37/04B21C23/08B21C1/04
Inventor 廉英云王善忠廉旭李胤杰
Owner TIELING FUXING COPPER IND
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