0.7兆帕以上。高压造型化粪池模具 精密铸造 钢纤维 盐水注射机 风电基础模具 nsk轴承经销商 nsk轴承总代理 保定空调移机
The working principle of compaction molding machine is to use air
pressure or hydraulic pressure to apply pressure to the molding sand in
the sand box through the indenter or pattern to compact the molding
sand. The pressure is generally 0.25-0.4 MPa. This kind of molding
machine makes the sand mold far away from the pressure surface have poor
compactness. In the early 1950s, a high-pressure molding machine
appeared, and the pressure on the sand mold plane was more than 0.7 MPa.
The head of high pressure molding machine is divided into flat head,
forming head and multi contact head. Among them, the high-voltage multi
contact molding machine is the most widely used.