A set of reference parameters for high aluminum galvanizing of scaffolding
Scaffolding material thickness: 3.5mm:
Plating solution ingredients: zinc chloride about 120g/L, ammonium chloride about 80g/L
Plating solution temperature: within 65℃
Iron salt in plating solution: within 5g/L, of course not the best, unlikely
High aluminum anti-leakage plating agent: must be more than 1.5% of the rinsing water
High aluminum anti-leakage plating agent: pH cannot be lower than 1.5
High aluminum anti-leakage plating agent soaking time: 20~40s;
Zinc liquid composition: nickel 0.02% or more; aluminum 0.04% or less; iron 0.03% (maximum melting degree at zinc liquid temperature)
Zinc liquid temperature: 438~440℃ [Regardless of color difference, increasing the temperature can save the amount of nickel alloy]
Coating effect: The surface of the galvanized layer is smooth, and the thickness of the zinc layer is within 50 μm.
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