Effects of Centrifugal Forces on Porosity and Dimensional Contraction Rate of TC4 Alloy Castings

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Effects of Centrifugal Forces on Porosity and Dimensional Contraction Rate of TC4 Alloy Castings
Vol. 29, Issue 9, Pages: 827-829(2009)
Published： 2009 ，
DOI：

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[1]贾丽敏,徐达鸣,赵光伟,李丽丽,宋广,龚海军,郭景杰,傅恒志.离心力对TC4钛合金铸件孔洞及线收缩率的影响[J].特种铸造及有色合金,2009,29(09):827-829+780.

Jia Limin, Xu Daming, Zhao Guangwei, et al. Effects of Centrifugal Forces on Porosity and Dimensional Contraction Rate of TC4 Alloy Castings. [J]. Special Casting & Nonferrous Alloys 29(9):827-829(2009)
[1]贾丽敏,徐达鸣,赵光伟,李丽丽,宋广,龚海军,郭景杰,傅恒志.离心力对TC4钛合金铸件孔洞及线收缩率的影响[J].特种铸造及有色合金,2009,29(09):827-829+780. DOI：

Jia Limin, Xu Daming, Zhao Guangwei, et al. Effects of Centrifugal Forces on Porosity and Dimensional Contraction Rate of TC4 Alloy Castings. [J]. Special Casting & Nonferrous Alloys 29(9):827-829(2009) DOI：

采用真空石墨型立式离心铸造方法

研究了离心力大小对Ti-6Al-4V（TC4）钛合金铸件内部孔洞率以及铸件宏观尺寸收缩率的影响。结果表明

随着重力系数的增加

铸件中的孔洞率呈指数方式明显减小

给出了两者之间统计关系的表达式;离心转速从0增加到210r/min时

阶梯铸件长度方向尺寸收缩率呈较明显的减小趋势;同一浇注工艺条件下

与离心力相比

铸型的冷却能力对铸件线收缩率的影响更显著。

Effects of centrifugal forces on porosity rate and dimensional contraction rate of Ti-6Al-4V（TC4） alloy casting

which was prepared with vacuum graphite mould by vertical centrifugal casting

were investigated. The results reveal that with the increase of gravity coefficient

the porosity rate in the casting is decreased as a function of exponent

and the corresponding regression equation is presented. With increasing in rotating velocity from 0 to 210 r/min

dimensional contraction rate of the multi-step castings in length is significantly decreased. At a given pouring condition

the effects of casting mould on dimensional contraction rate are higher that those of centrifugal forces.

Ti-6Al-4V立式离心铸造离心力孔洞率尺寸收缩率

TC4 AlloyVertical Centrifugal CastingCentrifugal ForcesPorosity RateDimensional Contraction Rate

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