The main classification of investment casting

Lost foam casting technology We all know that the production technology for steel or other raw materials is relatively comprehensive. There are still many classifications. We should roughly understand its classification. Different situations will require different types of classification methods. Today we will What are the important classifications of precision casting?

1. The ceramic type is all poured with ceramic slurry. The production process is to first fix the shape on the shape plate, coat the sandbox, and then pour the fried ceramic slurry into the sandbox. After the glue hardens, the mold is released, and it becomes a metal mold after high-temperature roasting.

2. Choose a bushing, pour ceramic slurry into the gap between the bushing and the shape to make a metal mold. The bushing can be sand molded or metal molded. Watering the ceramic shell with a bushing can save a lot of ceramic slurry, which is used more in manufacturing. The surface roughness of lost foam castings can reach Ra10~1.25μm, and the processing accuracy can reach 3~5 grades, which can achieve the effect of less grinding and no grinding. The production cycle of ceramic mold casting is short, and the utilization rate of metal materials is high. Large castings can reach more than ten tons, mainly used in precision casting of large and medium-sized thick-walled pipes and small batch production of stamping dies, forging dies, plastic molds, metal molds, die-casting molds, laminated glass molds, etc. mold. The service life of lost foam casting sand abrasives can be compared with abrasives made by mechanical processing, and the cost of raw materials is lower than that of abrasives made by mechanical processing.