Zinc die casting is a method of casting liquid die forg […]
Zinc die casting is a method of casting liquid die forging. The zinc die casting die forging process is a process completed on a dedicated die casting die forging machine. The basic process of zinc die-casting is: the molten metal is firstly cast into the cavity of the mold at low or high speed. The mold has an active cavity surface. It is forged with pressure during the cooling process of the molten metal, which eliminates the shrinkage of the blank Shrinkage defects also bring the internal structure of the blank to forged broken grains. The comprehensive mechanical properties of the blank have been significantly improved.
Zinc pressure casting, referred to as zinc die casting for short, is a casting method in which molten alloy liquid is poured into a pressure chamber, the cavity of a steel mold is filled at high speed, and the alloy liquid is solidified under pressure to form a casting. The main characteristics of die casting different from other casting methods are high pressure and high speed. The zinc metal liquid fills the cavity at a high speed, usually in the range of 10-50 meters/second, and some may exceed 80 meters/second, (the linear velocity of the cavity introduced through the gate-the speed of the gate), so the liquid metal The filling time is extremely short, which can fill the cavity in about 0.01-0.2 seconds (depending on the size of the casting). Die-casting die-casting machines, die-casting alloys and die-casting molds are the three major elements of die-casting production and are indispensable. The so-called die-casting process is the organic use of these three elements to enable stable and rhythmic and efficient production of qualified castings with good appearance, intrinsic quality, and dimensions that meet the requirements of the drawings or agreement, even high-quality castings.
Zinc die-casting is a good combination of the characteristics of die-casting and non-ferrous metal zinc. Therefore, as a new industry, zinc die-casting has a very mature market.