An effective method to prevent sand inclusion in stainless steel castings

The sand in the sand mold is not clean and there is residual sand and gravel, which is caused by the molten iron washing the sand on the sprue wall during the pouring process. Some use paint to prevent, get a better effect, but there will be castings appear sand, because the gate paint is more hard and difficult.

Methods: to improve the finished product rate of castings, improve the quality of castings, reduce the total cost of castings; the use of casting gate ceramic tube, the product is very convenient to use, with smooth circulation, resistance to molten iron, molten steel erosion, does not absorb molten steel and other characteristics, can simplify the molding process, save the difficulty of coating on the inside of the gate, and improve the layout of the gating system, to avoid casting sand. In this way, the phenomenon of sand clamping can be fundamentally solved.