A kind of high conductivity aluminum alloy and its heat treatment process
An aluminum alloy, high-conductivity technology, applied in the direction of conductive materials, conductive materials, metal/alloy conductors, etc., can solve problems such as easy cracking or breaking, increased contact resistance, creep, etc., to reduce mechanical properties and improve electrical conductivity , cost reduction effect
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[0017] A highly conductive aluminum alloy comprising the following components: 0.39% Si, 0.1% Fe, 0.124% Cu, 0.65% Mg, 0.04% Zn, 0.05% Cr, 0.12% other unavoidable The impurity element and the balance are Al.
[0018] The preparation method of high-conductivity aluminum alloy: (1) Add the raw materials into the melting furnace in order according to the block weight and size from large to small, then raise the temperature of the furnace gas by 20°C and keep it warm until it is completely melted, then raise the temperature of the furnace gas by 20°C After ℃, add pure zinc ingots one by one, keep warm until it is completely melted to obtain an alloy solution, reduce the temperature of the alloy melt to 730°C, add a covering refining flux, the recommended composition of the covering refining flux is (%, mass fraction): 30 %NaCl, 47% KCl, 23% cryolite, after forming a protective layer on the mirror surface of the melt, refining, refining once during the alloy melting process, the ti...
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