Precoated Sand Mold Core 精铸覆膜砂型芯
sodium silicate precoated sand 水玻璃覆膜砂
To decrease the strength of pipe shell mold,silica sol shell making was introduced by coating precoated sand in cavity,which could effectively improve the strength of shell mold,eliminating the problems in sand clean.
以降低管状型壳层强度为出发点,提出在内腔部位涂撒覆膜砂的硅溶胶熔模铸造制壳工艺,可以有效降低内腔型壳强度,从而解决内腔型壳清砂难的问题。
参考来源 - 覆膜砂在硅溶胶熔模铸造中的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
Properties of modified phenol resin, precoated sand preparation and property test have been narrated.
叙述了改性酚醛树脂的性能、及膜砂制备配方及其性能测定。
Precoated sand made of mixing this kind of resin and sand can serve as laser sintering material which suits laser rapid molding process much more.
这种烧结剂是一种改性酚醛树脂，它和作为耐火骨料的原砂混合制成覆膜砂作为激光烧结材料更加适用于激光快速成型过程。
Resin sand mould was adopted with precoated sand core. The upper and bottom half boxes used horizontal pouring design with box middle line as parting face.
采用树脂砂砂型、覆膜砂砂芯，上、下两个箱体均采用平做平浇的工艺方案，并选取箱体中线为分型面。
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