A method for manufacturing high-strength and high-conductivity aluminum alloy thick-walled pipes for power equipment
A technology of power equipment and high conductivity, which is applied in the field of aluminum alloy pipe preparation, which can solve the problems of poor corrosion resistance, inappropriate online quenching, and high quenching sensitivity, so as to improve production efficiency, meet order requirements, and save costs Effect
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Embodiment １
[0029] (1) The cast aluminum alloy is a six-series aluminum alloy round ingot, and the mass percentages of elements in the aluminum alloy ingot are as follows: Si is 1.21%, Fe is 0.12%, Cu is 0.09%, Mn is 0.91%, and Mg is 1.11 %, Cr is 0.23%, Zn is 0.159%, Ti is 0.05%, single impurity ≤0.05%, total impurity ≤0.15%, and the rest is Al; the ingot specification is Φ320mm×4000mm or the specification is Φ380mm×4000mm. When smelting No. 6 aluminum alloy round ingots, it is required to calculate ingredients, liquid slag removal, degassing, and to filter when casting.
[0030] (2) Cut the No. 6 aluminum alloy round ingot wagon with a specification of Φ320mm×4000mm or a specification of Φ380mm×4000mm, cut the head, cut the tail, take the low magnification, chemical composition, low magnification, and cut the wool. The wool specification is Φ320mm×1200mm or The specification is Φ380mm×1450mm;
[0031] Homogenous wool, heating temperature: 560°C, heat preservation for more than 9 hours,...
Embodiment 2
[0038] Example 3
Embodiment 3
[0040] The cooling method in the uniform fire system is strong wind cooling to 200 ° C and water cooling to achieve rapid cooling, ensure the maximum solid solution of strengthening elements, reduce the waiting time of the process for more than 24 hours, improve production efficiency, and process high-strength and high-conductivity thick-walled pipes After forming, the surface is treated with various oxidations or coatings, and the luster is beautiful without dark lines or dark lines, which not only ensures the performance but also improves the aesthetic feeling; low-magnification inspection of the oxide film can ensure the internal quality of the ingot and prevent the strength of the pipe caused by the oxide film reduce.
[0041] Example 4
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Abstract
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