一种环形薄壁铸件的精铸工艺

聂勇泉

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一种环形薄壁铸件的精铸工艺
Production of a Ring-thin-walled Parts in Investment Casting
2008年第10期页码：781-782
纸质出版日期： 2008 ，
DOI：

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[1]聂勇泉.一种环形薄壁铸件的精铸工艺[J].特种铸造及有色合金,2008(10):781-782+736.

Nie Yongquan. Production of a Ring-thin-walled Parts in Investment Casting[J]. Special Casting & Nonferrous Alloys, 2008,(10):781-782.
[1]聂勇泉.一种环形薄壁铸件的精铸工艺[J].特种铸造及有色合金,2008(10):781-782+736. DOI：

Nie Yongquan. Production of a Ring-thin-walled Parts in Investment Casting[J]. Special Casting & Nonferrous Alloys, 2008,(10):781-782. DOI：

摘要

分析了环形薄壁铸件的几种浇注方案。对于这种座体薄壁铸件

筋与壁的交汇处形成的热节

虽然不大

但也不能忽略

而采用将浇口直接开在热节处的多浇道方案

虽然工艺出品率有所下降

但却能有效地解决由热节处产生的缩松、缩孔等铸造缺陷。

Abstract

Some kinds of gating systems were designed to produce a ring-thin-walled parts. Hot spot formed at congregation between rib and wall can obviously affect the shrinkage porosity （hole） defects in the ring-thin-walled parts. The shrinkage porosity （hole） defects in the castings can be obviously eliminated by multi-gating sketch with directly setting runner on the hot spot position

however

the production yield rate is slightly decreased.