Brief analysis of preheating requirements and continuous production of aluminum die castings

Aluminum die castings need to be preheated before use. The cast aluminum molds should be preheated to a fixed temperature before use. Preheating can extend the life of the molds like preheating multi-purpose appliances or induction heating. Preheating temperature is controlled at 250 °C ~ 300 °C. The mold can be directly preheated by using molten metal (aluminum water) for about 0.5h, because the cold mold is directly in contact with the hot liquid metal, which is subject to thermal shock, which causes thermal erosion and accelerates cracking caused by thermal fatigue. And peeling off.

In the process of making aluminum die castings, the surface quality of the mold cavity can be effectively improved. The surface of the mold cavity should not have obvious deep machining tool marks, which prevents the cracking of the mold due to stress concentration during the working of the mold. When the cavity surface is effectively polished and polished, the surface roughness of the cavity is controlled to be below 0.8 μm.

Aluminum die castings need to be preheated before use. The cast aluminum molds should be preheated to a fixed temperature before use. Preheating can extend the life of the molds like preheating multi-purpose appliances or induction heating. Preheating temperature is controlled at 250 °C ~ 300 °C. The mold can be directly preheated by using molten metal (aluminum water) for about 0.5h, because the cold mold is directly in contact with the hot liquid metal, which is subject to thermal shock, which causes thermal erosion and accelerates cracking caused by thermal fatigue. And peeling off.

In the process of making aluminum die castings, the surface quality of the mold cavity can be effectively improved. The surface of the mold cavity should not have obvious deep machining tool marks, which prevents the cracking of the mold due to stress concentration during the working of the mold. When the cavity surface is effectively polished and polished, the surface roughness of the cavity is controlled to be below 0.8 μm.