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我厂生产的大型阀体铸件重3400Kg,材料为HT200.其形状虽然不是太复杂,但尺寸精度和表面粗糙度的要求很高,所以决定采用树脂砂造型工艺生产.
The large-scale valve castings produced by our factory weigh 3400Kg and the material is HT200.Its shape is not too complicated, but the requirements of size precision and surface roughness are very high, so it is decided to adopt resin sand molding process to produce.