PVD coating technology improves the performance of moulds by providing a protective film on the surface of the mould, thus solving the problems of sticking and poor release. This coating This coating has high hardness, thermal stability and denseness, which can effectively block the direct scouring contact between the mould and the high temperature aluminium liquid, reduce the generation of molten material, and then improve the situation of sticking material and poor mould release.
(1) Improve the hardness of the mould: the high hardness property of PVD coating can enhance the wear resistance of the mould and reduce the sticking problem caused by the interpenetration of materials.
2) Enhance the thermal stability of the mould: the thermal stability of the coating can prevent the mould from being deformed or damaged at high temperatures, which further reduces the sticking of materials and the difficulty of mould release.
(3) Optimise the surface properties of the mould: by improving the surface properties of the mould, the PVD coating can reduce the affinity between the mould and the die-casting alloy liquid, thus reducing the generation of molten material and making the surface of the mould smoother and easier to release.