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A kind of production technology of copper-magnesium alloy strip

A copper-magnesium alloy and production process technology, applied in the field of production technology of copper-magnesium alloy strip, can solve the problems of high energy consumption, large equipment investment, long process flow, etc., and achieve excellent mechanical properties, uniform composition and high purity. Effect

Active Publication Date: 2017-11-17
温州元鼎铜业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process is long, and at the same time, the energy consumption is high, and the equipment investment is large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The production technology of a kind of copper-magnesium alloy strip of present embodiment 1 comprises the steps:

[0041] Upward continuous casting—continuous extrusion—rough rolling—annealing—intermediate rolling—annealing—cleaning—finish rolling—cleaning—slitting

[0042] The specific steps are:

[0043] 1. Upward continuous casting

[0044] Using high-purity cathode copper as raw material, the high-purity cathode copper is preheated and dried and then melted in the smelting device. Charcoal and graphite flakes are used to cover the surface of the copper liquid, and the copper rod is drawn up by the traction unit.

[0045] Add a copper-magnesium master alloy with a magnesium content of 20% to the smelting device at a rate of 0.05%.

[0046] Add a copper-phosphorus master alloy with a phosphorus content of 20% to the smelting device at a ratio of 0.002%.

[0047] A rare earth copper master alloy containing 20% ​​of rare earth elements is added to the smelting device...

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PUM

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Abstract

The invention relates to a production process of a copper-magnesium alloy strip. The production process comprises the following steps that (1) a copper part is subjected to updraft continuous casting; (2) a copper strip blank is continuously extruded; (3) the copper strip blank is subjected to rough rolling through a four-roll cold rolling unit; (4) annealing is carried out; (5) intermediate rolling is carried out; (6) annealing is carried out; (7) cleaning is carried out; (8) finish rolling is adopted; (9) cleaning and passivating are carried out; and (10) slitting is carried out. The produced copper-magnesium alloy strip is low in oxygen content, high in conductive performance and excellent in mechanical property, and the process is short in procedure and efficient and saves energy.

Description

technical field [0001] The invention relates to the technical field of nonferrous metal processing, in particular to a production process of a copper-magnesium alloy strip. Background technique [0002] Copper-magnesium alloy is a solid-solution-strengthened alloy with a small amount of magnesium as an added element. Since the atomic radii of copper and magnesium are relatively close, when magnesium atoms are doped into copper metal, its strength will be greatly improved, but its electrical conductivity will be greatly improved. Less affected. [0003] Copper-magnesium alloy strips are mainly used in automotive terminals, relays, contacts, terminal blocks and other fields. Traditional copper-magnesium alloy strips are mainly made of ingot casting, heating, hot rolling, face milling, multi-pass cold rolling, multi-pass annealing, Cleaning and other processes. This technological process is long, and energy consumption is high at the same time, and equipment investment is rel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C37/02C22C1/03C22F1/08C22C9/00C22F1/02
CPCB21C37/02C22C1/03C22C9/00C22F1/02C22F1/08
Inventor 汤小梨刘巧荣
Owner 温州元鼎铜业有限公司