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Copper alloy band used on auto radiator

A technology for copper alloy belts and automobile water tanks, which is applied in indirect heat exchangers, heat exchanger types, heat exchange equipment, etc., can solve the problems of softening resistance temperature and comprehensive performance indicators of tensile strength that cannot fully meet market demand, and achieves The effect of meeting the needs of large quantities and being easy to process and produce

Inactive Publication Date: 2013-12-04
徐高磊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In recent years, the demand for automotive water tank belts has developed towards ultra-thin direction. Conventional Cu-Ni-Sn, Cu-Te, Cu-Sn-Zr and other series of copper alloys have comprehensive performance indicators such as electrical conductivity, anti-softening temperature, and tensile strength. Cannot fully meet the market demand

Method used

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example

[0017] Example: A copper alloy strip for radiators of automobile radiators, with copper content ≥ 99.7%, tin content 0.05-0.20%; antimony content 0.005-0.05%; indium content 0.005-0.05%; oxygen content ≤ 0.0005%; copper The sum of the contents of the four elements, tin, antimony and indium ≥ 99.99%, and the sum of other impurities < 0.01%; the processing technology of a copper alloy strip for automobile water tank radiators is as follows: the copper alloy with the above chemical composition is produced by semi-continuous casting 140×400×3500mm ingot, soaking time 3 hours; hot-rolled billet, the starting temperature is not lower than 850°C, the final rolling temperature is not lower than 650°C, and the final rolling thickness is 14mm; hot-rolled billet face milling , the thickness of the milling strip is controlled at 12mm; the billet is opened by a four-roll reversible cold rolling mill, the total processing rate of the billet is controlled at 80-90%, and the thickness of t...

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Abstract

The invention relates to a copper alloy band used on an auto radiator. The copper alloy band comprises the following chemical constituents by weight: more than or equal to 99.7% of copper, 0.05 to 0.20% of tin; 0.005 to 0.05% of antimony, 0.005 to 0.05% of indium; o to 0.0005% of oxygen, wherein the total content of copper, tin, antimony and indium is more than or equal to 99.99%; the total content of other impurities is smaller than 0.01%. The copper alloy band has the advantages that the components are reasonably optimized, the performance index is excellent, the electrical conductivity is larger than 85% IACS, the anti-softening temperature is higher than 390 DEG C, the tensile strength is 380-450 MPa, and the Vickers hardness is larger than 120. Therefore, the copper alloy band can completely meet the performance indexes required by the auto radiator.

Description

technical field [0001] The invention relates to the field of copper alloys, in particular to a copper alloy strip for radiators of automobile water tanks. Background technique [0002] Water tank radiator copper strip is an important raw material required by the automobile industry. The required technical indicators are electrical conductivity greater than 80%IACS, oxidation resistance temperature greater than 380°C, tensile strength 350~450Mpa, Vickers hardness HV: 110~150 . In recent years, the demand for automotive water tank belts has developed towards ultra-thin direction. Conventional Cu-Ni-Sn, Cu-Te, Cu-Sn-Zr and other series of copper alloys have comprehensive performance indicators such as electrical conductivity, anti-softening temperature, and tensile strength. Can not fully meet the market demand. Contents of the invention [0003] The object of the present invention is to provide a kind of copper alloy strip for radiator of automobile water tank, solve the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/02F28F21/08F28D1/04F01P11/00
Inventor 徐高磊
Owner 徐高磊
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