结晶氯化镁—氯化铵混合硬化剂制壳工艺

Shell-making Process of Sodium Silicate Investment Mold Hardened by Crystal MgCl_2 and NH_4Cl Additive

介绍结晶氯化镁———氯化铵混合硬化剂的配制方法和硬化工艺方法。采用该工艺后,提高型壳的品质,改善生产环境,降低生产成本。

The prescription of crystal MgCl_2 and NH_4Cl additive and shell-making process of mold shell are introduced. The quality of shell and production environment are improved, but the production cost is reduced by adopting the above proposes.