铸铁屏是化工设备中起屏蔽作用的铸件。铸件所有部位要经无损伤检验。铸件绝大部分是大平面(1—4米~2、大厚度(50—350毫米),这便增加了生产铸铁屏的困难。为提高铸件质量,根据平板类铸件的凝固特点,改变过去用孕育铸铁的习惯,适当提高 Cast iron screen is a casting of chemical equipment in the role of shielding. All parts of the casting to be tested without damage. Most castings are large flat surfaces (1-4m ~ 2, large thickness (50-350mm), which increases the difficulty of producing cast iron panels.) In order to improve the quality of castings, according to the solidification characteristics of flat castings, The habit of nurturing cast iron, appropriate increase