Metallization process - Surface Treatment

                 

Can be made into almost any kind of metal wire can be sputtering, metal spraying has many important applications, metallized decorative effect can be provided for the product.

Metallization technology has certain requirements:

Metallization process work must be pretreated substrate surface, the membrane material and the substrate metallization citation belongs mechanical bond, to get a good degree of mechanical bonding must be cleaned. Wire must be free of rust, grease-free, clean, standards-compliant. The substrate to be frosted.

Spraying construction environment metallization process should be higher than 5 degrees Celsius, if the air is humid, rain must be indoors. Spraying using thermal spraying method, the distance preferably 100-200mm, thermally sprayed belong manual operation, with respect to the vacuum coating apparatus by certain disadvantages for coating system.

When spraying, the spray gun should be perpendicular to the substrate, the angle of not less than 45 degrees, the maximum distance of not more than 200mm.

Spray coating thickness should grasp, generally after more than 0.1mm thickness to be layered deposition, the substrate temperature must not exceed 100 degrees Celsius, the moving speed of the gun should be uniform, 300-400mm / s better, spraying process can not hand touching sprayed surfaces.

Qualified metallized surfaces should be evenly without bubbles, no adhesion to the metal, you can use a magnifying glass to check the appearance, not only the appearance of quality to be qualified, but also qualified plating thickness, during an inspection if found to be defective should be re-fill plating .

Common metallization

Chrome: Chrome is a silvery white metal, a little bluish, there are five types, it is now widely used product modeling plating. There are chrome-plated guard, black chrome plating, hard chrome plating, porous chrome, white chrome.

Plated alloy: Alloy is required development of industrial production, some products require alloy properties, such as cobalt alloy, it looks pale pink, has strong corrosion resistance, plating out the effect of the system is very warm. For example tin alloy, corrosion resistance is better, a higher wear resistance and hardness, good polishing performance.

Silvered: a white light, high plasticity of the noble metal, silver having good conductive properties, can be improved conductivity performance of the product, it is fine silver metal, also commonly used for decoration.