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Precautions for mold plating

update:09-07-2020
abstract:

Due to the development of new technologies and aluminum […]

Due to the development of new technologies and aluminum templates, especially for the design of injection molds, aluminum molds are also more and more commonly used in the fields of blow molds, R.I.M. molds, rubber molds, structural foam molds, and R.T.M. molds. Although it may not be suitable for all applications, in fact, its use has become more and more common. Everyone wants to extend the service life of the mold, for example, the mold is made of traditional tool steel, and the surface is plated with hard chromium or nickel metal

Due to the development of new technologies and aluminum templates, especially for the design of injection molds, aluminum molds are also more and more commonly used in the fields of blow molds, R.I.M. molds, rubber molds, structural foam molds, and R.T.M. molds. Although it may not be suitable for all applications, in fact, its use has become more and more common. Everyone hopes to prolong the service life of the mold. For example, the mold is made of traditional tool steel, and the surface is plated with hard chromium or nickel metal, or a more specialized engineering coating is used to prevent the surface from wearing or Corrosion promotes better demolding. Since then, in pursuit of the same goal, aluminum molds have been adopted and practical solutions have been found.

Air cooler mould

In order to be able to produce more decorative parts by injection molding, in addition to extending the service life of the mold, the manufacturer also hopes that the surface of the aluminum mold can maintain a certain degree of gloss, so it is recommended to use electroless nickel spraying process, because This method helps to extend the life of the mold surface finish, making it relatively easy to produce decorative parts.

Due to the soft texture of aluminum, if no surface coating is used, it is easy to be worn by plastics, accelerating the degree of damage, thereby changing the gloss of injection molded parts. The electroless nickel coating can increase the mold surface by 50RC, which is enough to protect and extend the gloss and structure of the mold surface. Electroless nickel coating can obtain better surface finish quality than aluminum itself, but it must be pointed out that before the mold can be electroplated, some surface treatment is required first