Large steel casting manufacturers can control castings from these aspects:

1. slag pot casting process, generally casting steel manufacturers are based on the structure of the casting, size, required conditions, weight, to choose the appropriate core and modeling methods, will also be based on these conditions to set the cold iron, riser and pouring system and so on.

2. Slag pots design process, the general manufacturer will have a custom pattern to the drawing, when the steel factory receives the drawing, the technician will determine the shape and size of the product according to its working conditions and material, and so on, in addition, we also have to consider the rationality of the design from the casting process characteristics, which can also effectively avoid casting defects.

3. Slag pots process operation, when the design process and casting process are determined, it is necessary to process the operation, the production staff should strictly follow the established reasonable process procedures to operate, at the same time, we also need to improve the technical level of workers to ensure that the process can be normally implemented.

4. The premise of all these processes, or depends on the quality of raw materials, if the quality of the selected raw materials is not up to standard, it is easy to appear casting pinholes, slag inclusion, pores and sticky sand and other defects, which will directly lead to the appearance of the casting quality and internal quality unqualified, serious, but also make the casting directly scrapped.