筒管类铸钢件的铸造方法有两种,一是直立式浇注;一是水平式浇注。直立式浇注方法,多用于质量要求高,表面不得有夹渣,砂眼,气孔,内部组织要求致密,不允许有缩松、裂纹等缺陷的铸件,如汽缸、套筒,卷筒等。水平式浇注方法,在铸件质量要求不太高或细长铸件,为了造型操作方便和浇注安全而常用之。质量要求高的筒管类铸钢件,浇注方式固然很重要,但若浇注系统设计不当,也难得 There are two kinds of casting methods for tube castings, one is vertical pouring; the other is horizontal pouring. Vertical casting method, used for high quality requirements, the surface may not have slag, trachoma, porosity, internal organization requires dense, does not allow shrinkage, cracks and other defects casting, such as cylinder, sleeve, reel and so on. Horizontal casting method, casting quality requirements are not too high or slender castings, in order to facilitate the operation of molding and pouring safety and commonly used. High quality requirements of the tube type castings, pouring way is of course important, but if the pouring system design is improper, it is rare