Visualization Analysis of Gating System for Aluminum Alloy Cylinder Head of Engine

Feng Zhenhua~1; Su Yong~1; Huang Yuhao~1; Wang Chengguo~1; Zhang Qinglang~1; Jin Mei~2; Zhang Gaowei~2

Views : 0 下载量: 194 CSCD: 4

Export
Share
Collection
Album

Visualization Analysis of Gating System for Aluminum Alloy Cylinder Head of Engine
Vol. 31, Issue 11, Pages: 1002-1006(2011)
Published： 2011 ，
DOI：

扫描看全文

[1]冯振华,苏勇,黄煜豪,王成国,张晴朗,金梅,章高伟.铝合金发动机缸盖铸造工艺的计算机模拟分析[J].特种铸造及有色合金,2011,31(11):1002-1006.

Feng Zhenhua~1, Su Yong~1, Huang Yuhao~1, et al. Visualization Analysis of Gating System for Aluminum Alloy Cylinder Head of Engine. [J]. Special Casting & Nonferrous Alloys 31(11):1002-1006(2011)
[1]冯振华,苏勇,黄煜豪,王成国,张晴朗,金梅,章高伟.铝合金发动机缸盖铸造工艺的计算机模拟分析[J].特种铸造及有色合金,2011,31(11):1002-1006. DOI：

Feng Zhenhua~1, Su Yong~1, Huang Yuhao~1, et al. Visualization Analysis of Gating System for Aluminum Alloy Cylinder Head of Engine. [J]. Special Casting & Nonferrous Alloys 31(11):1002-1006(2011) DOI：

摘要

在对铝合金发动机缸盖进行工艺分析的基础上

制定了3组浇注方案

分别为缝隙式顶冒口补缩浇注系统、顶冒口直接浇注系统、半开放式半包围型横浇道浇注系统。通过使用铸造数值模拟软件对金属液的充型和凝固过程进行数值模拟

认为缝隙式顶冒口补缩浇注系统为最优方案。确定了缸盖的优化工艺参数:模具预热温度为400℃

浇注温度为720℃。在该组优化的工艺参数下

通过对金属液的充型和凝固过程的动态观察

预测了充型时间、凝固时间和可能存在的缩松、缩孔及气孔缺陷的分布与体积分数。

Abstract

Through analyzing technological process for aluminum engine cylinder head

three sets of gating systems

such as pouring with slit top feeding riser

direct pouring with top riser and pouring with half-open and half-enclose runner

were designed.Visualization of filling and solidification of liquid aluminum alloy was carried out by the simulation software.It is presented that the gating system with slit top feeding riser is the desirable design.The optimized processing parameters are as follows:preheating mould at 400 ℃ and pouring at 720 ℃.Based on the optimized processing parameters

the dynamic visualization of filling and solidification of liquid aluminum alloy was conducted

and filling time

solidification time

and distribution and volumetric fraction of possible shrinkage porosity（hole） and gas hole were predicted

providing a reference to the practical production.