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How to deal with aluminum after welding
Release time:
2022-08-12
Residual flux and welding slag left in and near the weld after welding will destroy the passivation film on the surface of aluminum, and sometimes corrosion aluminum parts, which should be cleaned up. The workpiece with simple shape and general requirements can be cleaned by simple methods such as hot water washing or steam blowing brush.
Residual flux and welding slag left in and near the weld after welding will destroy the passivation film on the surface of aluminum, and sometimes corrosion aluminum parts, which should be cleaned up. The workpiece with simple shape and general requirements can be cleaned by simple methods such as hot water washing or steam blowing brush. The aluminum parts with high requirements and complex shape can be washed with a hard brush in hot water, and then soaked in 2%-3% chromic anhydride aqueous solution or potassium dichromate solution in about 60℃ ~ 80℃ for 5 min ~ 10 min, and washed with a hard brush, and then washed in hot water, dried in an oven, or dried with hot air, and also dried naturally.
(2) Post-welding heat treatment Aluminum containers generally do not require heat treatment after welding.
Recycling Optional recycling
Aluminum is one of the most important non-ferrous metals. Because of its good properties (low density, good plasticity and formability) and easy recycling, pure aluminum and aluminum alloys have become important basic materials in home appliances. It is widely used in the remaking of hot parts and conductive parts of household appliances. The recycling of waste aluminum has become the most important part of non-ferrous metal recycling, and its energy consumption and recycling cost are much lower than that of primary aluminum production (about 10%).
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