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型壳
shell
- 精铸型壳浇冒口的合理设计和发热剂成分的科学配比与使用,是解决精铸产品浇冒口下方出现缩孔问题的关键,也是提高钢水利用率的有效途径。
Elimination of shrinkage hole encountered down ingate/riser investment castings and is an effective way to increase production yield by rationally designing ingate/riser in shell-mold in the investment casting and using lunkerite proportion. - 通过对型壳强度性能的要求与不同硬化剂的分析，在粘结剂和耐火材料不变的情况下，应用氯化铵与结晶氯化铝混合硬化工艺，取得较好的经济效果。
Through analyzing for requirement of shell strength and various hardeners,good economical benefit has been achieved by using technology of NH4Cl and AlCl3 crystal mixed hardener with the same binder and refractory staff. - 摘要为了解决快速熔模铸造中型壳开裂问题，对树脂模型与型壳材料在消失过程中的热变形机理和型壳开裂条件进行了有限元分析，建立了原型－型壳热变形数学模型，并应用于新型燃气涡轮导向器的快速铸造。
In order to avoid the shell cracking during baking process of quick investment casting based on stereolithography (SL) pattern, an expanding model of SL pattern-ceramic shell is proposed via analyzing the interaction between investment shell and SL pattern, then the cracking condition of investment shell is given.
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