High-copper alloy strip for heat sink of automobile

A car radiator and high-copper alloy technology, which is applied in the field of high-copper alloys, can solve the problems that the comprehensive performance indicators of anti-softening temperature and tensile strength cannot fully meet the market demand, and achieve the effect of short process and energy saving

Active Publication Date: 2013-05-08
南通市电梯部件业商会
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

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 market demand

Method used

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Embodiment Construction

[0029] 1) Upward continuous casting: After preheating and drying electrolytic copper and other raw materials, they are melted in a smelting device, and the surface of the molten copper is covered with charcoal and graphite flakes. The copper rod is drawn up by vacuum, and then the copper rod enters the take-up device;

[0030] The electrolytic copper in the step 1) uses high-purity cathode copper; the temperature of the smelting furnace in the smelting device is 1150°C to 1200°C, and the copper liquid in the smelting furnace is covered with charcoal; the holding furnace in the smelting device is The temperature is 1150°C to 1180°C, covered with graphite phosphorus sheets; the inert gas used in the online degassing device is one of 99.996% argon or 99.996% nitrogen, and the outlet pressure of the gas source is 0.5MPa. The flow rate is 1~1.25Nm 3 / h, the rotor speed is 50-150r / min; the speed of the lead rod of the traction unit is 500-1500mm / min, the diameter of the lead rod is...

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Abstract

The invention relates to a high-copper alloy strip for a heat sink of an automobile. The high-copper alloy strip comprises the following components in percentage by weight: more than or equal to 99.6% of copper, 0.05-0.20% of silver, 0.01-0.02% of stibium, 0.01-0.02% of chromium, 0.005-0.01% of phosphorus, 0.01-0.05% of rare earth and less than 0.0005% of oxygen. A production process of the high-copper alloy strip comprises the following steps of: (1) upward continuous casting; (2) continuous extruding; (3) cold rolling; (4) intermediate annealing; (5) finish rolling; (6) washing and passivating; (7) slitting; and (8) packaging and warehousing. The high-copper alloy strip provided by the invention has the technical advantages that composition of a high-copper alloy strip for an ultrathin water tank strip of an automobile is reasonably optimized and the problems that comprehensive performances such as electrical conductivity, anti-softening temperature and tensile strength can not meet operating requirements as a strengthened red copper alloy is adopted for preparing the ultrathin water tank belt in the prior art are solved.

Description

technical field [0001] The invention relates to the field of high-copper alloys, in particular to a high-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. [0003] Contents of the invention [0004] The purpose of the present invention is to provide a kind of high-copper alloy strip material for automobile...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22F1/08C21D8/02F28F21/08
Inventor 徐高磊
Owner 南通市电梯部件业商会
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