Zinc plating is the most common coating for steel products, but galvanizing can be used in a variety of processes. How to choose the galvanizing process and galvanizing additives depends on the requirements of the products for the parts. Only according to the design requirements of the product and the characteristics of the product itself, the relevant galvanizing process can be selected according to the conditions in which the plating meets the product requirements in different galvanizing processes.
For the general protection coating, an alkaline zincate galvanizing color passivation process can be used. Sometimes for the color matching of the product, blue-white passivation process, such as military green passivation, black passivation, etc., can also be used.
For some parts that need to be deformed after galvanizing, a low-brittle galvanizing process is adopted, which does not require the brightness, thereby reducing the amount of bright additives.
For the galvanizing of the paint base as a paint, due to the drying or curing process of the paint, zinc plating such as zincate or chloride galvanizing is not suitable for galvanizing. Instead, use cyanide galvanizing or low-brittle zincate galvanizing. Otherwise, in the case where the temperature is higher than 160 ° C, the phenomenon of blistering of the plating may occur.
For small parts suitable for barrel plating such as standard parts, it is preferable to use potassium chloride bright galvanizing. This kind of coating has good lightness and high current efficiency. The disadvantage is that the passivation performance is slightly worse, but it is enough to meet the requirements of the product.
For wire plating with higher deposition speed and current efficiency, a sulphate galvanizing process can be used. Compared with the ancient sulphate galvanizing, the current sulphate galvanizing can achieve a bright coating effect due to the use of the brightener technology, and the wire exhibits good protection and decorative effects. Sulfate galvanizing is also suitable for steel products such as castings that have a rough surface or a large surface area.
For the general protection coating, an alkaline zincate galvanizing color passivation process can be used. Sometimes for the color matching of the product, blue-white passivation process, such as military green passivation, black passivation, etc., can also be used.
For some parts that need to be deformed after galvanizing, a low-brittle galvanizing process is adopted, which does not require the brightness, thereby reducing the amount of bright additives.
For the galvanizing of the paint base as a paint, due to the drying or curing process of the paint, zinc plating such as zincate or chloride galvanizing is not suitable for galvanizing. Instead, use cyanide galvanizing or low-brittle zincate galvanizing. Otherwise, in the case where the temperature is higher than 160 ° C, the phenomenon of blistering of the plating may occur.
For small parts suitable for barrel plating such as standard parts, it is preferable to use potassium chloride bright galvanizing. This kind of coating has good lightness and high current efficiency. The disadvantage is that the passivation performance is slightly worse, but it is enough to meet the requirements of the product.
For wire plating with higher deposition speed and current efficiency, a sulphate galvanizing process can be used. Compared with the ancient sulphate galvanizing, the current sulphate galvanizing can achieve a bright coating effect due to the use of the brightener technology, and the wire exhibits good protection and decorative effects. Sulfate galvanizing is also suitable for steel products such as castings that have a rough surface or a large surface area.
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