Foundry Starch for High Quality Casting Applications

In clay sand casting production, casting defects caused by molding sand thermal expansion have always been an industry problem. Foundry Starch (α-Starch), as a special clay sand casting material, has become an efficient cast iron auxiliary material to solve this problem by virtue of its unique thermal stress absorption mechanism. This product has complete α-modification, high expansion rate and uniform dispersion. It forms a complete functional chain of "high-temperature loss - space retention - stress absorption" in the sand mold, which can greatly reduce sand mold expansion pressure and avoid casting quality problems such as cracks, blowholes, sand swelling and sand inclusion. As a professional clay sand casting material, this product can also strengthen the sand mold surface structure, prevent dry sand drop and cavity damage caused by excessive water volatilization, and improve molding stability and pouring success rate. This product works synergistically with foundry coal powder, f…