Production method of zinc-aluminum-manganese-magnesium alloy for hot dipping
A technology of zinc-aluminum-manganese-magnesium alloy and production method, which is applied in the field of nonferrous metallurgy to achieve the effects of reducing the amount of production, improving adhesion, and thinning bright adhesion
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[0010] The preparation process of zinc-aluminum-manganese-magnesium alloy: first, the main alloying element zinc is added into the melting zinc furnace to melt, then aluminum is added and the temperature continues to rise to 500-600°C, and then the elements manganese and magnesium are simultaneously pressed into the molten zinc with a pressure cover made of SiC. Stir in the zinc liquid, continue to heat up to 600-700°C, add refining agent and keep the temperature constant for 10-20 minutes, cool down to 450-550°C, remove slag and cast into zinc-aluminum-manganese-magnesium alloy ingots.
[0011] The proportion of zinc-aluminum-manganese-magnesium alloy ingredients: by mass percentage: Al: 0.1-2.0, Mn: 0.1-2.0, Mg: 0.1-0.5, Zn as the balance.
[0012] The ratio of zinc, aluminum, manganese and magnesium alloy ingredients can be adjusted within a limited range.
Embodiment
[0014] 1. Al: 0.1%; Mn: 0.1%; Mg: 0.1%; Zn is the balance.
[0015] 2. Al: 0.5%; Mn: 0.5%; Mg: 0.2%; Zn is the balance.
[0016] 3. Al: 1.0%; Mn: 1.0%; Mg: 0.3%; Zn is the balance.
[0017] 4. Al: 1.5%; Mn: 1.5%; Mg: 0.4%; Zn is the balance.
[0018] 5. Al: 2.0%; Mn: 2.0%; Mg: 0.5%; Zn is the balance.
[0019] 6. Al: 2.0%; Mn: 2.0%; Mg: 0.1%; Zn is the balance.
[0020] 7. Al: 1.5%; Mn: 1.5%; Mg: 0.2%; Zn is the balance.
[0021] 8. Al: 1.0%; Mn: 1.0%; Mg: 0.3%; Zn is the balance.
[0022] 9. Al: 0.5%; Mn: 0.5%; Mg: 0.4%; Zn is the balance.
[0023] 10. Al: 0.1%; Mn: 0.1%; Mg: 0.5%; Zn is the balance.
[0024] The more preferred combination of ingredients in the above embodiments is Al: 0.5%-1.5%; Mn: 0.5-1.0%; Mg: 0.1-0.3%; Zn is the balance.
[0025] In the examples, except zinc, aluminum, manganese and magnesium elements, the rest are impurity elements, which should meet the requirements of hot-dip galvanized product standards: Fe<0.005%, Cd<0.003%, Sn<0.002%, Pb<0.0...
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