Origination and Prevention of Eccentricity of a Hollow Bar Castings

Qin Weishun1; Zhao Ertuan2; Zhou Hongbao2

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Origination and Prevention of Eccentricity of a Hollow Bar Castings
Issue 12, Pages: 951-952(2007)
Published： 2007 ，
DOI：

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[1]秦维顺,赵而团,周洪宝.精密铸造空心杆状件的偏心原因分析与对策[J].特种铸造及有色合金,2007(12):951-952+900.

Qin Weishun1, Zhao Ertuan2, Zhou Hongbao2. Origination and Prevention of Eccentricity of a Hollow Bar Castings. [J]. Special Casting & Nonferrous Alloys (12):951-952(2007)
[1]秦维顺,赵而团,周洪宝.精密铸造空心杆状件的偏心原因分析与对策[J].特种铸造及有色合金,2007(12):951-952+900. DOI：

Qin Weishun1, Zhao Ertuan2, Zhou Hongbao2. Origination and Prevention of Eccentricity of a Hollow Bar Castings. [J]. Special Casting & Nonferrous Alloys (12):951-952(2007) DOI：

摘要

对一种空心杆状件的偏心原因进行了分析

由于浇注系统的不合理

在钢液浮力和热变形的共同作用下

型芯产生挠度变形

从而产生铸件偏心现象。通过改变浇注系统将杆状铸件水平组树方案改为倾斜组树

该缺陷可以基本克服。

Abstract

The origination of eccentricity of a hollow bar castings was analyzed.The formation of eccentricity in the bar castings was attributed to the deflection deformation of core resulting from co-action of floating force and thermal deformation due to irrational gating system.The eccentric defects in hollow bar can be obviously eliminated by modifying gating system.