一、概述在铸造行业中,垂直分型无箱射压造型方式具有生产率高、质量好、工艺装备少(不需砂箱)和工作环境好等显著优点;同时它也存在结构复杂、定型产品价格高和调整维修困难等问题。因而,使这项技术的推广受到一定程度的限制。我厂是一个以生产铁路配件为主的小型工厂,年产铸铁件五千吨。为进一步提高铸造生产能力,高效、优 First, an overview In the foundry industry, the vertical sub-type boxless injection molding method has the advantages of high productivity, good quality, less process equipment (without sand box) and good working environment, etc. At the same time it also has complex structure, stereotypes products High prices and adjustment and maintenance problems and other issues. Thus, to promote the technology to some extent limited. Our factory is a small factory mainly producing railway accessories, with an annual output of 5,000 tons of cast iron. To further improve the casting production capacity, efficient, excellent