高真空压铸汽车底盘结构件浇注系统分析

安肇勇; 黄志垣

doi:10.15980/j.tzzz.2018.07.012

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高真空压铸汽车底盘结构件浇注系统分析
Analysis of Gating System on High Vacuum Die Casting Automobile Chassis Structural Part
2018年38卷第7期页码：738-741
纸质出版日期： 2018 ，
DOI： 10.15980/j.tzzz.2018.07.012

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[1]安肇勇,黄志垣.高真空压铸汽车底盘结构件浇注系统分析[J].特种铸造及有色合金,2018,38(07):738-741.

An Zhaoyong, Huang zhiyuan. Analysis of Gating System on High Vacuum Die Casting Automobile Chassis Structural Part[J]. Special Casting & Nonferrous Alloys, 2018,38(7):738-741.
[1]安肇勇,黄志垣.高真空压铸汽车底盘结构件浇注系统分析[J].特种铸造及有色合金,2018,38(07):738-741. DOI： 10.15980/j.tzzz.2018.07.012.

An Zhaoyong, Huang zhiyuan. Analysis of Gating System on High Vacuum Die Casting Automobile Chassis Structural Part[J]. Special Casting & Nonferrous Alloys, 2018,38(7):738-741. DOI： 10.15980/j.tzzz.2018.07.012.

摘要

介绍了汽车底盘结构件的高真空压铸成形设计

以可热处理的Al-Si-Mn-Mg系高强韧铝合金汽车底盘结构件的压铸技术开发与应用为研究对象

通过设置不同的浇注系统

应用数值模拟方法

定性分析了铝合金液流动的充型状态与铸件缺陷的分布

着重研究了梳形浇道、扇形浇道、集中进浇、分散进浇、长浇道与短浇道对充型流动状态、充型温度、充型速度、气压阻力与铸件成形的关系;确定了铸件的浇注系统与排气系统

大大缩短了模具的开发周期。

Abstract

The high vacuum die casting of the car automotive chassis structural parts was analyzed

and the die casting technology development and application of the heat-treatable Al-Si-Mg-Mn high strength aluminum alloy car automotive chassis structural parts were described.The numerical simulation method was adopted to analyze the flow and filling of the aluminum alloy liquid and the distribution of the casting defects with different pouring gates.In addition

the effects of gating system were analyzed

such as the comb-shaped pouring gate

the sector pouring gate

pouring concentrate and pouring disperse

long pouring gate and short pouring gate

on the filling process

filling temperature

the filling velocity and the drag pressure.The optimized pouring system and exhausted system was determined to reduce greatly the mold development period.