loose core

基本解释

Hollow core was linked with hydraulic loose-core implement fixed on the moving die.
空心型芯与固定在动模上的液压抽芯器相连。
The utility model relates to a loose-core concrete structure, pertaining to the field of civil engineering.
一种疏芯体混凝土结构，土木工程领域。
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The opening force of die casting machine drives the crossed compound dog-led cam mechanism draw core in inboard concave, and then make the hydraulic loose-core implement to draw the hollow core.
开模时，压铸机开模力驱动交叉复合弯销机构进行铸件内侧凹抽芯，然后液压抽芯器抽拔杯形型芯。