Both Numerically and Experimentally Solving Microshrinkage in Casting

HU Xing-ye; LIU Hong-hui; ZHANG Yong

doi:10.15938/j.jhust.2016.03.017

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Both Numerically and Experimentally Solving Microshrinkage in Casting

更新时间：2026-08-31

- Both Numerically and Experimentally Solving Microshrinkage in Casting
- Vol. 21, Issue 3, Pages: 87-90(2016)
- 作者机构：
  
  中航工业哈尔滨东安发动机集团有限公司铸造优中心,黑龙江,哈尔滨,150066
- 作者简介：
- 基金信息：
- DOI：10.15938/j.jhust.2016.03.017
  CLC： TG249.2
- Published：2016
- 稿件说明：
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HU Xing-ye, LIU Hong-hui, ZHANG Yong. Both Numerically and Experimentally Solving Microshrinkage in Casting[J]. 2016, 21(3): 87-90.
DOI：

HU Xing-ye, LIU Hong-hui, ZHANG Yong. Both Numerically and Experimentally Solving Microshrinkage in Casting[J]. 2016, 21(3): 87-90. DOI： 10.15938/j.jhust.2016.03.017.

摘要

针对大型镁合金（137kg）主机匣铸件法兰边的疏松缺陷，采用数值模拟结合实验验证的方法，研究了冒口种类和冷铁结构对主机匣法兰边内部疏松缺陷的变化规律，从补缩凝固角度分析了产生缺陷的原因，给出了解决缺陷的基本思路．结果表明：对于模数为1．3cm的法兰边，分散布置φ50mm的保温冒口，在其中间放置厚度为（1．5—2．0）倍法兰边厚度的冷铁，对冒口颈加R角，可使得ZM6合金液在保温冒口中形成模数变化梯度，保证补缩通道通畅，消除法兰边内部的疏松缺陷．

Abstract

Aiming at micro-shrinkage of large magnesium alloy casting （e. g. 137 kilogram）

which refers to main housing of helicopter

the influence of both feeder＇ s characteristic and chiller＇ s dimension on micro-shrinkage in flange was investigated in both numerical and experimental way. The reason for the defect was analyzed according to feeding solidification principle. Results show that for flange with 1.3 cm modulus

using disperse φ50 mm sleeves

putting each chiller with its thickness （ 1.5 - 2.0） times of flange＇ s thickness in between

two feed- ers and putting radius on feeder＇ s neck are able to obtain better modulus gradient for melt of ZM6 alloy in a sleeve and make feeding channel available

thus solving the micro-shrinkage which occurs in flange.

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Related Institution

AECC Harbin Dongan Engine Co. , Ltd.

School of Materials Science and Engineering, Harbin Institute of Technology

School of Materials Science and Chemical Engineering, Harbin University of Science and Technology

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AECC Harbin Dong’an Engine Co. Ltd.

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