As we all know, zinc die casting is currently widely used in various decorations, such as household accessories or bathroom accessories. Because of the many applications, relatively speaking, the surface quality requirements for zinc die casting will be higher. Next, talk about the problems that must be paid attention to during the use of zinc die casting.
Aging effect. The structure of zinc die casting is mainly composed of a zinc-rich solid solution containing Al and Cu and an Al-rich solid solution containing Zn, and their solubility decreases with the decrease of temperature. However, due to the extremely fast solidification rate of die castings, the solubility of the solid solution is greatly saturated at room temperature. After a certain period of time, this kind of oversaturation will gradually be relieved, and the shape and size of the casting will slightly change.
Zinc die casting is not suitable for use in high temperature and low temperature (below 0℃) working environment. Zinc alloy has better mechanical properties at room temperature. However, the tensile strength at high temperatures and the impact performance at low temperatures is significantly reduced.
Like zinc die casting, lead die casting has a wide range of applications, so the surface quality requirements are also very high.
