Die casting is a kind of pressure casting part. It uses a pressure casting machine die casting machine equipped with a casting mold to pour liquid copper, zinc, aluminum, or aluminum alloy into the inlet of the die casting machine and pass it through the die casting machine. Die casting is to cast copper, zinc, aluminum parts, or aluminum alloy parts of the shape and size restricted by the mold. Such parts are usually called die castings. However, in the process of producing zinc die casting , there will be many problems. Now let's take a look at the problems and solutions in the production of die-casting parts.
During production, if the surface of the casting swells with micro-cracks, it is a phenomenon that the alloy composition meets the requirements but a large number of pores appear, then the cause of the defect may be the premature opening of the mold or the mold temperature may be too high. There are likely a lot of bubbles inside the casting. When the metal solidification time is not enough, the strength is not established, and the mold is opened prematurely to eject the casting. The pressure bubbles expand and the surface of the casting is raised and hot cracks are generated. The solution is not without, we adjust the process parameters in the die-casting process to keep the mold longer and reduce the mold temperature in the defect area.
The above is the solution to the phenomenon that the surface of the casting swells and has micro-cracks, but we will have other problems when we produce lead die casting or other die castings, so we still need the accumulation of experience and the precipitation of time, so Don't be too hasty, slowly accumulate little by little.
