Do you know the difference between China lead die casting and zinc die casting? Many companies now want to use aluminum alloys to replace zinc alloys in order to save costs, but some cannot be replaced because zinc alloys are much better in strength, hardness and formability than aluminum alloys. If the surface of your product needs to be polished and electroplated, and high appearance quality is required, then zinc alloy must be used. It is difficult for aluminum alloy materials to meet high surface quality requirements, because aluminum alloy die-casting performance is poor, and there are many pores on the product surface, and the surface quality after electroplating is very poor.

Zinc alloy casting has better performance and many advantages. Zinc alloy has a low melting point, a small solidification temperature range, easy filling and molding, and a small shrinkage tendency. It can die-cast precision parts with complex shapes and thin walls. The surface of the casting is smooth and the dimensional accuracy is high. ; The pouring temperature is low, the mold has a long service life, is not easy to stick to the mold, and does not corrode the mold. In addition, the mechanical properties of zinc alloys at room temperature are also high, especially the compression resistance and wear resistance. The zinc alloy die castings can well accept various surface treatments, such as electroplating, spraying, and painting.

However, both lead die casting and zinc die casting have their own advantages and disadvantages. China zinc die casting manufacturer and other manufacturers have made a series of improvements to address these shortcomings. Although the results have been minimal, they are still working hard to improve.