Hot Dip Galvanized Standard Parts Formation Process

What are the formation processes of hot-dip galvanized standard parts? Hot dip galvanized layer formation process is the most out of pure iron substrate and formed between the zinc layer of iron, zinc alloy, the process of workpiece surface formed in hot dip plating of iron - zinc alloy layer, and makes good combination between iron and pure zinc layer, the process can be simply described as follows: when the blacksmith a immersed in molten zinc liquid, zinc first formed in the interface and alpha (heart) solid solution.

This is a kind of crystal formed by zinc atoms dissolved in the matrix metal iron in the solid state. There is fusion between the two metal atoms, and the attraction between atoms is relatively small. So when zinc in solid solution after reaching saturation, two kinds of zinc iron atom diffusion, spread to (or called infiltration) iron matrix of zinc atom in the lattice matrix migration, gradually formed and iron alloy, and spread to molten zinc liquid iron and zinc in the formation of intermetallic compounds FeZn13, sank into the hot dip galvanizing pot is zinc slag. When the workpiece is removed from the zinc immersion solution, the surface forms a pure zinc layer, which is hexagonal crystal. It contains no more than 0.003% iron.