根据体收缩原则，研究了适用于模具镶块铸钢件加发热覆盖剂保温的冒口设计工艺。
Based on the principle of volume contraction of freezing, the designing process of riser fitting to the cast steel inserted die with exothermic covering flux has been studied.
该模具采用了手动齿轮抽芯和活动镶块两种机构。
Adopted manual gear core-pulling and the moving insert block core-pulling .
该模具的凸模和活动凹模镶块分别在斜楔和楔形滑块作用下水平相向运动完成冲裁。
By controlling the wedge block and springs, its punches and movable plate blocks achieve the horizontal punch movement.
针对原弹簧座镦挤模具结构的缺陷，设计了新型镶块式模具结构，使模具成本显著降低。
The weaknesses have been pointed out of former die structure for upsetting and extruding dumb iron. A de-sign of new type of combination die has been presented, resulting in markedly reduced die cost.
通过对主体压铸件的结构工艺性分析，确定了模具结构设计方案，介绍了台阶分型面选择、立式缝隙浇口浇注系统设计、预复位推出机构设计和镶块镶拼结构设计。
Througn designing three axial slots in internal threaded portion and optimizing nib structure, a design was made on the injection mould with a two-step ejecting mechanism with non-rotating.
通过对主体压铸件的结构工艺性分析，确定了模具结构设计方案，介绍了台阶分型面选择、立式缝隙浇口浇注系统设计、预复位推出机构设计和镶块镶拼结构设计。
Througn designing three axial slots in internal threaded portion and optimizing nib structure, a design was made on the injection mould with a two-step ejecting mechanism with non-rotating.
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