source：http://en.zzdsyc.com/product555657.html time：2020-5-12 11:38:16
flux manufacturer considers riser as a supplementary part attached to the top or side of the casting to avoid casting defects.Function in the casting,flux manufacturer considers that the cavity of the riser is a cavity for storing liquid metal,flux manufacturersupplying metal during casting formation, which can prevent shrinkage, porosity, exhaust and slag accumulation,flux manufacturer considers that the main part of the riser is riser. The main function is to compensate. Mold powder manufacturer thinks that the design function of riser is different, and its form, size and opening position are different. @ Mold powder manufacturer thinks that the design function of riser is different.