吹塑模具锌基合金型腔的精密铸造工艺

Precision Casting of Zn-base Alloy Die Cavity for Blow-plastic Die

基于石膏型精密铸造工艺，采取在塑料样品上翻脱出石膏凹模作铸型浇注锌基合金凸模，然后在锌基合金凸模上浇注模具锌基合金型腔的新工艺，从而有效地缩短模具的生产周期，降低模具的生产成本。

To cast negative die from the plastic sample and then to get the positive die from the negative die with the Zn-base alloy,we can shorten the period of die production,and reduce the cost of the die.