Elimination of Burning-on in Blind and Tenuous Hole in Negative Pressure Lost Foam Casting

Zhu Lijuan; Wang Mingna; Zhang Yu; Dong Xiuqi

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Elimination of Burning-on in Blind and Tenuous Hole in Negative Pressure Lost Foam Casting
Vol. 29, Issue 11, Pages: 1040-1041(2009)
Published： 2009 ，
DOI：

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[1]朱丽娟,王明娜,张喻,董秀琦.消失模铸造中盲孔及细深孔粘砂问题的解决途径[J].特种铸造及有色合金,2009,29(11):1040-1041+977-978.

Zhu Lijuan, Wang Mingna, Zhang Yu, et al. Elimination of Burning-on in Blind and Tenuous Hole in Negative Pressure Lost Foam Casting. [J]. Special Casting & Nonferrous Alloys 29(11):1040-1041(2009)
[1]朱丽娟,王明娜,张喻,董秀琦.消失模铸造中盲孔及细深孔粘砂问题的解决途径[J].特种铸造及有色合金,2009,29(11):1040-1041+977-978. DOI：

Zhu Lijuan, Wang Mingna, Zhang Yu, et al. Elimination of Burning-on in Blind and Tenuous Hole in Negative Pressure Lost Foam Casting. [J]. Special Casting & Nonferrous Alloys 29(11):1040-1041(2009) DOI：

摘要

揭示了消失模负压铸造中

盲孔和细深孔机械粘砂的机理

认为有3种途径可以解决机械粘砂:①减小涂料中粉料的粒度;②降低金属液温度;③减小负压。并指出防治机械粘砂的有效方法——用级配石灰石砂做涂料及填料。通过对铸钢件、铸铁件试验验证

级配石灰石粉做涂料和填料

可以有效减少粘砂。

Abstract

The origination of generated mechanical burning-on in blind and tenuous hole in negative pressure lost foam casting were expounded theoretically.A way to prevent mechanical burning-on was presented including using proportional CaCO3 as coating and filler to coat and fill into the hole.The results are verified.

关键词

消失模负压铸造细深孔粘砂

Keywords

Negative Pressure CastingTenuous HoleBurning-on

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