Hot dip galvanizing additive
A hot-dip galvanizing and additive technology, applied in the field of hot-dip galvanizing additives, can solve problems such as human health hazards, poor fluidity of zinc liquid, product sales restrictions, etc., to expand sales range, ensure quality and corrosion resistance, and improve flow performance effect
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[0009] A hot-dip galvanizing additive, consisting of zinc-bismuth multi-element alloy, is characterized in that: the content of each element is 98.5-99.5% by weight of zinc; 0.35-0.40% of bismuth; 0.42-0.48% of rare earth and other elements; adding zinc-bismuth multi-element The temperature during alloying is generally controlled at 440°C-460°C; the amount of the zinc-bismuth multi-element alloy added accounts for 5-10% of the amount of zinc ingots required for hot-dip galvanizing.
[0010] In specific implementation, the bottom dross needs to be removed before heating the galvanizing additive for the first time, and the hot-dip galvanizing additive is added evenly with a hanging basket. When adding, the temperature of the zinc solution is generally controlled at 440°C-460°C to reduce temperature fluctuations and ensure the quality of the coating. The invention improves the fluidity of the zinc solution in the galvanizing process, reduces the thickness of the coating, reduc...
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