齿轮室集成铸件主体芯制芯工艺研究  

Research on Core Making of Gear Chamber Integrated Castings

作　　者：李菲 陈秀明 齐建 任怀喜 王建 周强 王传伟 孙志扬 LI Fei;CHEN Xiuming;QI Jian;REN Huaixi;WANG Jian;ZHOU Qiang;WANG Chuanwei;SUN Zhiyang(Weichai(Weifang)Material Molding Manufacturing Center Co.,Ltd.,Weifang 261061,Shandong China;Weichai Power Co.,Ltd.,Weifang 261061,Shandong China)

机构地区：[1]潍柴(潍坊)材料成型制造中心有限公司,山东潍坊261061 [2]潍柴动力股份有限公司,山东潍坊261061

出　　处：《铸造工程》2023年第4期39-43,共5页Foundry Engineering

摘　　要：针对缸体中齿轮室集成结构越来越普遍,加大了主体芯制芯难度的情况,研究了齿轮室集成铸件主体芯射砂紧实和固化时间的影响因素。通过分析射砂嘴、砂芯排布与射砂效果的关系,以及排气设计与吹胺固化时间的关系,最终得到了适合笔者公司的齿轮室集成铸件主体芯制芯的最优方案。经实践,主体芯制芯80%左右可实现一次射砂,且吹胺固化时间降为了55 s左右。In view of the fact that the integrated structure of gear chamber in cylinder block is becoming more and more common,which increases the difficulty of main core making,the influencing factors of sand core compaction and curing time of gear chamber integrated castings were studied.Through the analysis of the relationship between the sand shooting nozzle,the sand core arrangement and the effect of the sand injection,and the relationship between the exhaust design and the curing time of blowing amine,the optimum core-making scheme suitable for the main core of the gear chamber integrated casting of the author's company was finally obtained.After practice,about 80%of the core can realize one time sand shot,and the curing time of blowing amine is reduced to about 55 s.

关 键 词：射砂 紧实度 吹胺固化 射砂嘴 排气设计 

分 类 号：TG242.7[金属学及工艺—铸造]