Today, the main contradiction of dissolved mold casting of precision production is the main problem is what?There is no doubt is the casting defects of carbon, is in the bubble shape (whether EPSH or STMMA) of the mass fraction of 92% and 69.6% respectively in carbon caused by a variety of defects in the casting process.Carbon defects is the main contradiction, the contradiction is due to the objective existence of carbon in EPS and people with EPS production activities and interdependence, the presence of carbon and its impact is the main aspects of the principal contradiction, to refuse this contradiction can only put the carbon to eliminate or minimize.Can definitely say that any mold precision casting enterprise if this entrenched carbon defects, its development prospects will be impeded.