High Quality Foundry Coal Powder for Casting

As a core clay sand casting material and cast iron auxiliary material, this foundry coal powder is developed specifically for green sand casting processes. It effectively improves the air permeability and collapsibility of sand molds, reducing casting defects such as sand adhesion and slag inclusion. When used with foundry compound sand (casting mixed soil), it enhances the high-temperature resistance of sand molds; when compounded with foundry sodium bentonite, it optimizes bonding performance; and when used in synergy with foundry starch, it further improves sand mold toughness. Made from low-sulfur high-quality raw coal, the product undergoes fine grinding, with uniform particle size (80-120 mesh), fixed carbon content ≥85%, and volatile matter controlled between 32%-38%, fully suitable for the production of various castings such as cast iron and cast steel. Whether for mass production of small and medium-sized castings or custom processing of large complex parts, this foundry coal…