Shelling mould casting side plate

In the 1940s, contemporary investment casting was applied in industrial production. At that time, the development of the aviation turbojet engine specified the complex shape, specifications and its surface finish wear-resistant alloy steel parts, such as elephant leaves, impellers, nozzles, etc.. Because the wear-resistant alloy steel material is difficult to process, the shape of the parts is complex, can not or difficult to manufacture in other ways, must find a new precision molding process, so reference to the ancient wax casting, after the improvement of materials and processes, contemporary investment casting methods in the ancient process has been the key development of the premise. Thus, the development of the aerospace industry has promoted the application of investment casting, and the continuous refinement and improvement of investment casting has created useful standards for the aerospace industry to further improve its characteristics.

Melt casting era in the 50s and 60s, China began to use the melting die casting in industrial production. Since then, this advanced casting process has been a huge development, overlay sand casting bearing seat is widely used in aviation, vehicles, machine tools, ships, internal combustion engines, small turbines, telecommunications instruments, weapons, equipment and its tools and other manufacturing industries, overlay sand casting parts for the manufacture of ceramic art.