铸件

抽真空

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请教:将合好的壳模(覆膜砂)放在箱里再填砂,抽真空,浇注。可行吗?

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理论上可行,但实际做起来比较复杂。另外不知是砂箱内抽真空,类似于消失模, 还是类似于低压铸造或差压铸造,每一项技术使用都有其条件。
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