Hot-dipping aluminum-zinc alloy containing rare earths and preparation method thereof
A hot-dip aluminum and zinc alloy technology, applied in hot-dip galvanizing process, metal material coating process, coating, etc., can solve the problems of poor surface appearance quality, coarse surface spangles, poor processing formability, etc., and achieve wet Good corrosion resistance, refined spangles, and improved corrosion resistance
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example 1
[0035] The material composition is:
[0036] 55.0wt% Al, 1.5wt% Si, 0.07wt% La+Ce, the balance being Zn. According to the material composition, industrial pure aluminum, industrial pure zinc, industrial pure silicon, industrial pure rare earth Ce or La or La+Ce (or aluminum rare earth master alloy) are melted in the intermediate frequency furnace (or industrial frequency furnace) and poured into the mold It is made into an alloy ingot for hot-dip plating, which is used in a continuous production line of hot-dip steel strip or a production line of hot-dip steel components. The hot-dip process used is the same as that of the original Galvalume alloy.
example 2
[0038] The material composition is:
[0039] 55.0wt% Al, 1.5wt% Si, 0.12wt% La+Ce, the balance is Zn. According to the material composition, industrial pure aluminum, industrial pure zinc, industrial pure silicon, industrial pure rare earth Ce or La or La+Ce (or aluminum rare earth master alloy) are melted in the intermediate frequency furnace (or industrial frequency furnace) and poured into the mold It is made into an alloy ingot for hot-dip plating, which is used in a continuous production line of hot-dip steel strip or a production line of hot-dip steel components. The hot-dip process used is the same as that of the original Galvalume alloy.
example 3
[0041] The material composition is:
[0042] 55.0wt% Al, 1.5wt% Si, 0.07wt% La+Ce, the balance being Zn. According to the material composition, industrial pure aluminum, industrial pure zinc, industrial pure silicon, industrial pure rare earth Ce or La or La+Ce (or aluminum rare earth master alloy) are directly melted in the zinc pot or pre-melting pot on the hot-dip line , Direct hot-dip production.
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