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Aluminum post weld treatment
Oct 12, 2016

1. welding Hou left in weld and the near of remaining flux and welding slag, will damage aluminum surface of passivation film, sometimes also will corrosion aluminum pieces, should cleanup clean. shape simple, and requirements General of artifacts can with hot scour or steam gas blow brush, simple method cleanup. requirements high and shape complex of aluminum pieces, in hot used hard hair brush wash Hou, again in 60 ℃ ~ 80 ℃ around, and concentration for 2%~3% of chrome anhydride water solution or heavy chrome acid potassium solution in the dip wash 5min~10min, and hard hair brush wash, And then washed in hot water washing, oven dried, or dried with hot air or natural drying 2. post-weld heat treatment, aluminum containers generally post-weld heat treatment is not required.

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