Through the analysis of the technological process for the delivery box lid, the structure working process of the flanging and pattern_pressing die were introduced.
通过对投递箱箱盖的成形工艺分析 ，介绍了其弯形压边模结构及工作过程 ，阐述了在有花纹及字母的成形模设计中应注意的事项。
The accuracy steadiness of the technological process is an important part for reliability analysis of the technological process which is usually remarked with continuous difference method.
工艺过程精度稳定性是工艺过程可靠性分析的重要组成部分，常用续差法对其进行评定。
The resin sand with high collapsibility is chosen to make the core of the near closed hollow ring on the basis of many technological experimentations through analysis of structure and process.
通过结构分析和工艺分析，在大量工艺试验的基础上，选用高溃散性树脂砂制作型芯，并成功地研制出大型薄壁复杂结构的封闭型腔铸件。
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