Low zinc hot dipping aluminium alloy plating material containing Ca multi-combination metamorphism
A technology of hot-dip plating and aluminum alloy, which is applied in the field of low-zinc hot-dip aluminum alloy coating materials, can solve the problems of reduced ability to wet the surface of the steel substrate, deterioration of the ductility and appearance of the coating, and increased viscosity of the zinc solution. The effect of wetting and fusion ability, reducing cold barrier, and reducing eutectic temperature
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[0017] According to the weight percentage of elements in the present invention, the alloy composition is Zn: 10-13, alloy strengthening agent Cu: 5.0, polarization modifier Ca: 0.03, solvent passivating agent Mo: 0.2, precipitation hardening agent Sn: 0.1, crystal grain Refining agent Zr: 0.1, matrix interface reaction buffer Fe: 0.5, rare earth additive: 0.5, the rest is Al and unavoidable trace impurities.
[0018] Select a group of elements according to the formula combination table, according to the percentage by weight: polarization modifier Ca: 0.03, alloy strengthening agent Cu: 5.0, solvent passivator Mo: 0.2, precipitation hardening agent Sn: 0.1, grain refinement Agent Zr: 0.1, rare earth additive: 0.5, matrix interface reaction buffer element Fe: 0.5, second solvent element Zn: 13, and the balance is Al;
[0019] The rare earth additive is one of the 17 rare earth elements, or more than one mixed rare earth element.
[0020] The total amount of the prepared alloy i...
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