Control Aluminum Die Casting Raw Materials

My country's die-casting industry is constantly developing new technologies, new materials, and can be seen everywhere in life. The characteristics of aluminum pressure castings have determined the level of process technology such as production, management, die casting. If the control is not good, the die-cast scrap rate is high, which will cause the waste of human, material resources, and financial resources, and seriously affect economic benefits and product quality. How can I control the quality of aluminum die castings?
Control raw materials: In order to ensure the quality of die casting, improve product pass rates, strict control quality when selecting raw materials, usually determined by each feed sampling test, and then cast, processed according to each element in alloy, processing, The effects of surface treatment and other subsequent processes are strictly controlled by chemical components of chemical components such as aluminum, zinc, magnesium, copper and iron.