大型压铸机压射系统保压状态静态结构力学仿真分析  

Static Structural Mechanical Simulation Analysis of the Pressure-Holding State in the Injection System of a Large Die-Casting Machine

作　　者：林兆富 王淳 徐慧 夏伟 王庆文 辜诚 赵建华[2] LIN Zhao-fu;WANG Chun;XU Hui;XIA Wei;WANG Qing-wen;GU Cheng;ZHAO Jian-hua(Chongqing Changan Automobile Co.,Ltd.,Chongqing 400023,China;College of Material Science and Engineering,Chongqing University,Chongqing 400045,China)

机构地区：[1]重庆长安汽车股份有限公司,重庆400023 [2]重庆大学材料科学与工程学院,重庆400045

出　　处：《铸造》2025年第2期227-236,共10页Foundry

摘　　要：压射系统作为压铸机的关键系统,生产过程包含快压射、慢压射、减速以及保压四个阶段。其中保压阶段压射系统近似承受静态载荷,是系统受力最大的阶段,对该阶段进行研究具有重要意义。本文将压铸机压射系统拆分为三大部分,分别为压射室部分、液压缸部分以及增压缸部分,基于有限元方法对其进行了保压状态下的静态结构仿真,分析不同关键部件在保压状态的变形、应力与应变,并进一步针对压射系统中的易损件冲头进行不同尺寸的仿真分析,探究其影响规律。The injection system,as a key component of the die-casting machine,encompasses four stages in the production process:fast injection,slow injection,deceleration,and pressure-holding.The injection system is subjected to the maximum quasi-static loads during the pressure-holding stage,hence,it is of great significance to study this stage.This paper divides the die-casting machine's injection system into three main parts:the injection chamber,the hydraulic cylinder,and the intensifier cylinder.Based on the finite element method,static structural simulations were conducted to analyze the deformation,stress,and strain of the above parts under pressure-holding condition.Additionally,simulations of the punch,a consumable part in the injection system,were performed with varying sizes to investigate its influence patterns.

关 键 词：压铸机 压射系统 保压 静力学分析 数值模拟 

分 类 号：TG249.2[金属学及工艺—铸造]