Investment Casting Components with the Long Hole and Narrow Groove

Bao Yuqiu; Zhang Dawei; Lu Rui; Qin Lei

doi:10.15980/j.tzzz.2013.07.027

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Investment Casting Components with the Long Hole and Narrow Groove
Vol. 33, Issue 7, Pages: 646-648(2013)
Published： 2013 ，
DOI： 10.15980/j.tzzz.2013.07.027

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[1]包玉秋,张大伟,鲁蕊,秦磊.长孔、窄槽类铸件的熔模铸造工艺[J].特种铸造及有色合金,2013,33(07):646-648.

Bao Yuqiu, Zhang Dawei, Lu Rui, et al. Investment Casting Components with the Long Hole and Narrow Groove. [J]. Special Casting & Nonferrous Alloys 33(7):646-648(2013)
[1]包玉秋,张大伟,鲁蕊,秦磊.长孔、窄槽类铸件的熔模铸造工艺[J].特种铸造及有色合金,2013,33(07):646-648. DOI： 10.15980/j.tzzz.2013.07.027.

Bao Yuqiu, Zhang Dawei, Lu Rui, et al. Investment Casting Components with the Long Hole and Narrow Groove. [J]. Special Casting & Nonferrous Alloys 33(7):646-648(2013) DOI： 10.15980/j.tzzz.2013.07.027.

摘要

长孔、窄槽类熔模铸件由于孔长、槽窄而不易上涂料和撒砂

浇注时孔、槽内易跑火

并有缩松缺陷出现

经过生产实践摸索出浸浆法、长孔内插木条法、型壳局部保温法、陶瓷型芯法、自硬型芯法等

基本上解决了这些问题

且工艺简便

具有较强的可操作性。

Abstract

Run-out and dispersed shrinkage defects often occur in investment castings with the long hole and narrow groove because of difficulty in coating and stuccoing operation for long hole and narrow groove. Some ways were presented including dipping slurry

inserting the batten in the long hole

keeping temperature in the partial shell

the ceramic core and the self-hardening core

which could eliminate effectively the problems in a certain extent. In addition

the ways mentioned have the advantages of convenient operation.

关键词

长孔、窄槽类铸件浸浆法陶瓷型芯法自硬型芯法

Keywords

Castings with Long Hole and Narrow GrooveDipping SlurryCeramic Corethe Self-hardening Core

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