The processing process of galvanized pipes includes pre -processing, electroplating and post -processing. The impact of electroplating process on the quality of plating is also affected by many factors in electroplating processes and materials. Summarized six factors.
1. Zinc: Zinc and zinc blocks have high purity and narrow light. Car steel plates are easier to obtain thick coating with lower iron content. When the purity of zinc block is too low, the light will become larger, and the thickness of the zinc layer in the rules will become longer, resulting in high iron content in the zinc layer.
2. There are two effects of sodium hydroxide and sodium hydroxide. When the content of sodium hydroxide is too high, the operation process of high temperature combustion is prone to occur. When the content of sodium hydroxide is too low and the solution is not adjusted, the coating quality will decrease.
3. Iron content: When the iron content is too high, the iron content in the coating will be more appropriate, and the brightness of passivation and the lack of product; too low iron content will lead to low iron content in the zinc layer, corrosion resistance of the car board, and make the car board's corrosion resistance, and make the car board's corrosion resistance, and make the car board's corrosion resistance and make the car plates resistance and make the car boards and make the car board resistance and make the car plates resistance and make the car plate. The surface of the car forms polystumin. Torion
4. Polishing: Now more light is mixed through ZF-100A and ZF-100B. Excessive concentration will increase the crispness of the coating. Too low will constitute a low-current area coating is relatively rare and there is no passion.
5. High temperature will reduce the relaxation of plating liquid treatment process, increase the iron content of the plating layer, and uneven passivation; when the reaction temperature is low, the high -current density zone of the burning in the short term. high. Slow down accumulation.
6. Cathode movement speed: It is necessary to ensure that the cathode plating process is in a state of movement. If the movement speed is too fast, the plating process in the high current density area will be rough; if the movement speed is too slow, the data flow may be formed, and the plating layer is uneven.
Galvanized pipes for galvanized metals. They are electrolytic in the zinc solution, and then deposit on the surface of the tube to form a square, uniform, fine -galvanized metal layer. Compared with other metals, zinc is a gender metal that is easily dissolved in acid and alkali, and is easily electrolytic from metal ions in the solution. During the processing of galvanized square pipes, the above factors should be considered in order to produce qualified galvanized galvanized pipe products.
