Several commonly used method of roofing nail plating
Roofing nail of the technological principle of hot dip galvanizing and zinc plating
In the production process, the production of roofing nail is improved by the technology of roofing nails, and the anti corrosion performance is improved.
Roofing nail of the technological principle of hot dip galvanizing and zinc plating
1. Hot dip galvanized zinc also liquefied state, roofing nails on the liquefaction of solution of zinc layer, in high temperature, roofing nail on the surface of the iron and zinc are dissolved to form alloy layer. With this time, surface of zinc ions slowly to the iron into diffusion and eventually cover all posted once, the surface from the solution of zinc layer after cooling will into a layer of zinc layer.
2. Electro galvanized is the use of positive and negative electrodes of the mobile ions galvanization, the liquefaction in the solution of zinc negative pole and roofing nail positive and negative docking, anions in the current move towards the cathode. Roofing nail itself is a steel body, zinc and steel in electroplating forming micro battery, roofing nail steel by cathodic protection and coating is formed.
Comparison of performance of hot dip galvanizing and zinc plating
1. Electro galvanized layer formed layers are thick, uniform coverage and show smooth. Zinc layer of relatively pure, can adapt to various environment, and anti - corrosion performance is very good, in the environment of strong acid and alkali corrosion degree is not very ideal.
2 hot plating method is the nominal iron zinc alloy layer, zinc layer closely covered the surface, the surface layer of iron and zinc mixed layer is very strong.
Galvanized roofing nails in many areas have a good application, its quality of physical properties in the furniture production, = wood processing, decoration materials and other industries a large number of use.
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