熔模铸造型壳强度与硬化工艺改进

Improvement of Shell Strength and Hardening Technology in Investment Casting

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 NH_4Cl and AlCl_3, crystal mixed hardener with the same binder and refractory staff.