一体化压铸模具液压真空阀极速响应控制方案设计与应用  

Design and Application of Speed Response Control Scheme for Hydraulic Vacuum Valve in Integrated Die Casting Mold

作　　者：但昭学 聂俊毅 万里 黄志垣 林韵 DAN Zhaoxue;NIE Junyi;WAN Li;HUANG Zhiyuan;LIN Yun(Guangdong Hongtu Technology Co.,Ltd.,Zhaoqing 526108)

机构地区：[1]广东鸿图科技股份有限公司,肇庆526108

出　　处：《特种铸造及有色合金》2024年第8期1037-1040,共4页Special Casting & Nonferrous Alloys

基　　金：国家重点研发计划资助项目(2023YFB2504602)。

摘　　要：一体化压铸件具有投影面积大和壁厚较薄等特点,其生产需要使用大型的模具以及真空压铸工艺,因此需要配置多个油缸驱动的模具液压真空阀。目前模具液压真空阀的关闭动作响应时间较长,而关闭不及时易发生模具液压真空阀进料,导致模具故障;预留充足的安全关阀时间则会缩短抽真空时间,导致真空度不足,影响产品品质。因此,改善模具液压真空阀的响应时间,可以减少模具故障,有利于生产。本文对一体化压铸模具液压真空阀极速响应控制的设计与应用进行探究,实现一体化压铸模具液压真空阀极速响应时间控制在35 ms以内。Integrated die-casting parts have the characteristics of large projection area and thin wall thickness,which requires large molds and vacuum die-casting technology.Therefore,multiple hydraulic vacuum valves driven by oil cyl⁃inders are required.The closing response time of hydraulic vacuum valve in the mold is currently long,while the untimely closing causes feeding of hydraulic vacuum valve,leading to mold failure.Sufficient safety valve closing time can shorten the vacuum pumping time,resulting in an increase in production vacuum degree,thus affecting product quality.Therefore,improving the response time of hydraulic vacuum valve in the mold can reduce mold failures,con⁃tributing to production.The design and application of the maximum speed response control of the hydraulic vacuum valve in integrated die casting mold were investigated,achieving the maximum speed response time within 35 ms.

关 键 词：一体化压铸 模具液压真空阀 响应设计 

分 类 号：TG249.2[金属学及工艺—铸造]