交叉复合弯销与液压抽拔交叉型芯压铸模结构，用于压铸带内侧凹的杯形零件。
A die casting die with pumping crossed cores by crossed compound dog-led cams and hydraulic pressure is used for cupulate parts with inboard concave.
重点分析了在焙烧过程中，棒形产品和瓷套产品黄芯缺陷的形成过程，认为该缺陷是坯件在焙烧过程中还原不足造成的。
The formation process of tawny core defect in porcelain bydy of insulator at firing were be analysis in detail. The author atributes it to the body was not deoxidized safficiently at firing.
解决了长径比大，刚性差细长管形复材零件抽芯困难的问题。
The problems of large length-diameter ratio and difficult core pulling for slender pipe-shaped composite parts with poor rigidity can be solved.
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