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Method for pretreating the surfaces of weld parts of aluminum or alloys thereof and corresponding weld parts
Method for pretreating the surfaces of weld parts of aluminum or alloys thereof and corresponding weld parts
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机译:铝或铝合金的焊接零件及相应焊接零件的表面预处理方法
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摘要
Described here is a method for pretreating the surfaces of weld parts of aluminum or alloys thereof, and weld parts produced with said method. Prior to welding, the weld parts are subjected to a treatment (17) in an acidic, aqueous solution, wherein the acidic, aqueous solution contains ions of the elements boron and/or silicon and/or titanium and/or zirconium and/or hafnium. The invention consists in that a polishing step (9) is carried out prior to the treatment in the acidic, aqueous solution to make for better sliding in a feed apparatus during the welding process.
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