Elimination of Defects in F3 Cylinder Cap

Cui Wei; Li Jugang; Hu Jiawang; Wang Gongping; Xiong Yu

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Elimination of Defects in F3 Cylinder Cap
Issue 1, Pages: 52-53(2007)
Published： 2007 ，
DOI：

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[1]崔伟,李举刚,胡家旺,王公平,熊渝.F3汽缸盖铸造缺陷的防止[J].特种铸造及有色合金,2007(01):52-53+10.

Cui Wei, Li Jugang, Hu Jiawang, et al. Elimination of Defects in F3 Cylinder Cap. [J]. Special Casting & Nonferrous Alloys (1):52-53(2007)
[1]崔伟,李举刚,胡家旺,王公平,熊渝.F3汽缸盖铸造缺陷的防止[J].特种铸造及有色合金,2007(01):52-53+10. DOI：

Cui Wei, Li Jugang, Hu Jiawang, et al. Elimination of Defects in F3 Cylinder Cap. [J]. Special Casting & Nonferrous Alloys (1):52-53(2007) DOI：

摘要

针对低压铸造F3汽缸盖出现的铸件缺陷

在铸造工艺上进行了改进。解决铸件气道粘砂问题的办法

一是气道砂芯表面刷细密涂料;二是改进砂芯摆放方式

由原来的堆码式改为分层分件隔离式。对于壁厚复杂铸件常出现的缩松、缩孔问题

采用激冷方式得到解决;而对于局部厚大部位的缩松问题

采用顺序凝固

开辟补缩通道也行之有效。

Abstract

The improvement of casting process was conducted to eliminate the defects in F3 cylinder cap in low pressure casting.Sand-adhesion was avoided by brushing fine and sound coating on sand-core surface in exhausted channel and altering set-ways of sand-core.Shrinkage porosity（hole）in thick-walled complex parts can be eliminated by chilling method.Meanwhile

it is an effective way to resolve shrinkage porosity in thick partial location by adopting directional solidification and setting feeding channel.