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精密铸造有什么概念简介？
精密铸造基本概念：它包括：熔模铸造、陶瓷型铸造、金属型铸造、压力铸造、消失模铸造。其中较为常用的是熔模铸造：选用适宜的熔模材料制造珩齿机熔模；
The basic concepts of precision casting include investment casting, ceramic casting, metal casting, pressure casting and lost foam casting. Among them, investment casting is more commonly used: selecting suitable investment material to make honing machine investment mould;
在熔模上重复沾涂料与撒砂工序，硬化型壳及干燥；再将内部的熔模溶化掉，获得型腔；焙烧型壳以获得足够的强度，烧掉残余的熔模材料，浇注所需要的金属材料，脱壳后清砂，从而获得高精度的成品。根据产品需要或进行热处理与冷加工。
Repeated coating and sand spraying process, hardening shell and drying on the melting die; then melting the internal melting die to obtain the cavity; calcining the shell to obtain sufficient strength, burning the residual melting material, pouring the required metal materials, removing the sand after shelling, so as to obtain high-precision products. According to product requirements or heat treatment and cold processing.
The basic concepts of precision casting include investment casting, ceramic casting, metal casting, pressure casting and lost foam casting. Among them, investment casting is more commonly used: selecting suitable investment material to make honing machine investment mould;
在熔模上重复沾涂料与撒砂工序，硬化型壳及干燥；再将内部的熔模溶化掉，获得型腔；焙烧型壳以获得足够的强度，烧掉残余的熔模材料，浇注所需要的金属材料，脱壳后清砂，从而获得高精度的成品。根据产品需要或进行热处理与冷加工。
Repeated coating and sand spraying process, hardening shell and drying on the melting die; then melting the internal melting die to obtain the cavity; calcining the shell to obtain sufficient strength, burning the residual melting material, pouring the required metal materials, removing the sand after shelling, so as to obtain high-precision products. According to product requirements or heat treatment and cold processing.
