Why do plastic molds need to be coated with PVD？
① Enhance the demolding ability of the mold, reduce the adhesion between the product and the mold, improve product quality, avoid using demolding agents, and thus reduce the secondary processing cost of the product.
② Improve the service life of the mold. Coating can protect the surface of the mold, reduce damage to the forming surface, and the surface of the coated mold has extremely high hardness, which can resist high pressure erosion and damage from high hardness, high fiberglass materials to the mold, thereby extending the service life of the mold.
③ Protect high mirror molds and special machining surfaces (such as precision EDM machining surfaces). Coating can ensure that it does not affect surface smoothness while reducing high repair costs.
④ Realize oil-free lubrication. Mold components such as ejector pins, valve needles, and diagonal pins can achieve oil-free or low oil lubrication with the help of coatings, effectively preventing jamming, improving the service life of the mold and reducing the trouble of requiring secondary cleaning of the product.
⑤ Improve production efficiency. Due to the ability of coatings to reduce friction and improve quality, plastic molds can operate at high production efficiency, thereby increasing production per unit time.
⑥ Reduce costs.
The use of coatings in plastic mold manufacturing can reduce surface wear of the mold, thereby reducing the shutdown time of the mold and saving practical operation and processing costs. Due to high efficiency, plastic mold coatings and reliable performance operate at high production efficiency, thereby increasing production volume per unit time.
⑦ Clear color indication
Different from metal materials, coatings have different colors. When the coating fails, technicians can clearly understand the replacement and maintenance cycle of the mold. This can avoid damage, mold accuracy, and unnecessary material loss