压铸用高真空控制系统的开发与应用  

Development and Application of High Vacuum Control System for Die Casting Process

作　　者：万里[1] 林海[1] 何伟[1] 吴树森[1] 

机构地区：[1]华中科技大学材料科学与工程学院,材料成形与模具技术国家重点实验室,武汉430074

出　　处：《特种铸造及有色合金》2010年第7期633-635,共3页Special Casting & Nonferrous Alloys

基　　金：广东省教育部产学研结合项目(2009B090300243)

摘　　要：针对国内压铸企业在高真空压铸技术方面的应用现状,开发了一套具有自主知识产权、基于PLC和触摸屏的、在普通压铸机上使用的高真空控制系统。该系统能和现有的压铸机匹配,适应于压铸机的普通压铸(无真空)和高真空压铸工作模式,并能对模具的密封状态及真空系统管路进行检测。同时,在压铸过程中系统可自动监测模具型腔中的真空度、真空抽气管路的堵塞情况,以确保高真空压铸生产的可靠性和稳定性。该系统已在某汽车底盘保安零件的压铸生产中得到应用,满足了高真空压铸的要求。According to practical environment of HVDC (high vacuum die casting)process in the domestic plant,a set of high vacuum control system was developed based on the PLC and touching screen technology to apply for common DC machine.The control system exhibits the features of automatically matching with DC machine and two modes feasible for general DC and for HVDC process as well as detecting die sealing and pipe blocking in vacuum system.Meanwhile,cavity vacuum in the die and blocking of vacuum pumping line can be monitored automatically in order to improve production stability and reliability of DC process.The system has been used to produce car chassis part,meeting the requirement of HVDC.

关 键 词：高真空压铸 真空控制装置 PLC 

分 类 号：TG249.2[金属学及工艺—铸造] TG249.9