The advantages of galvanized wire drawing anti-corrosion and high strength are widely used in tennis nets and other fields. The thickness of galvanized wire drawing is multiplied by the area (1 square meter), and then multiplied by the density of metal zinc (7.14 grams/cubic centimeter), you can find the amount of zinc (g/square meter or mg/square meter). Galvanized wire drawing selection of low-carbon galvanized wire drawing, the surface treatment of zinc dipping process, conventional British standard production, smooth and neat, solid and uniform structure, good overall performance.
Compared with other galvanizing processes, cyaniding galvanizing requires lower cleaning standards for substrate before plating. However, under the current trend of increasing the quality grade of cyanide zinc coating, some pollutants are brought into the plating tank. Obviously becomes something harmful. Cleaning the galvanized layer wastes a lot of time and reduces the output. Galvanized to wire drawing before electroplating. Proper cleaning and effective rinsing of the substrate is very important.
In order to remove the surface film, surface inclusion and other defects locally on the surface of the deposited layer, it can be found and treated by conventional techniques. Excess foam is caused by the surfactant of soap and saponifiable fats being brought into the tank. A moderate rate of foam formation may be harmless. The presence of a large number of small homogeneous particles in the tank can stabilize the foam layer, but the accumulation of too many solid particles will cause explosion.
Matting with activated carbon to remove surfactants, or filtering to make the foam less stable, are effective measures. Other measures should also be taken to reduce the amount of surfactant brought in. The introduction of organic matter can significantly reduce the plating speed. Although the chemical formulation is conducive to a high deposition rate, the thickness of the coating cannot meet the requirements after the organic matter is brought in, so activated carbon can be used to treat the bath.
Galvanizing refers to the surface treatment technology of plating a layer of zinc on the surface of metals, alloys or other materials to play the role of aesthetics and rust prevention. Zinc is soluble in acids and also soluble in bases, so it is an amphoteric metal. Zinc changes little in dry air. In moist air, a dense basic zinc carbonate film forms on the surface of zinc. Zinc coating is an anodic coating, which is mainly used to prevent steel corrosion, and its protective performance is closely related to the thickness of the coating. The protection and decoration of zinc coating can be improved significantly after passivation, dyeing or coating with light protector.
Post time: 18-07-23