农用耕地机发动机曲轴箱体一体化压铸模浇排系统的设计与优化  

Design and Optimization of Crankcase Integrated Die Casting Mold Casting System for Agricultural Cultivator Engine

作　　者：孙振宇 张伟 薛鹏基 李俊杰 于文波 SUN Zhenyu;ZHANG Wei;XUE Pengji;LI Junjie;YU Wenbo(School of Mechanical and Electronic Control Engineering,Beijing Jiaotong University,Beijing 100044;Beijing Supreium Technology Co.,Ltd.,Beijing 100044)

机构地区：[1]北京交通大学机械与电子控制工程学院,北京100044 [2]北京适创科技有限公司,北京100044

出　　处：《特种铸造及有色合金》2024年第8期1132-1136,共5页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(52175284)。

摘　　要：对农用耕地机发动机的曲轴箱体采用一体化压铸,以实现产品功能集成化和轻量化。由于铸件体积较大且壁厚不均匀,成形过程中铸件底面出现了较为严重的冷隔缺陷,并且部分区域出现粘模。为消除这些缺陷,使用智铸超云软件对压铸过程进行分析,进而对原方案的浇排系统进行优化设计,即在铸件中部引入辅助内浇口以提高铸件底面充填温度。使用新方案后产品合格率达到97%。The integrated die casting was used for the crankcase of agricultural cultivator engines to achieve product functional integration and lightweight.Due to the large size of casting and uneven wall thickness,the bottom surface of the casting during the molding process reveal more serious cold shut defects,and mold sticking phenomenon occurrs in some region.To eliminate these defects,Cast Supre software was used to analyze the die-casting process and optimize the design of the gating and exhaust system of the original plan.The auxiliary inner gate was introduced in the middle of the casting to increase the filling temperature of the bottom surface of the casting.Finally,the product qualification rate reached up to 97%by new scheme.

关 键 词：一体化压铸 冷隔缺陷 浇排系统 

分 类 号：TG249.2[金属学及工艺—铸造] TP311[自动化与计算机技术—计算机软件与理论]