Keramyske gieterij sân foar grien sân proses

Green Sand Castings are castings made using wet sand or “green sand” molds. The sand is not green in color nor do the molds use “greensand,” a greenish color sandstone. Instead of the sand is called “green” because it has moisture in it (like green wood) before the sand dries out when molten metal is poured in the mold.

What gives the sand moisture and helps the sand stick together when making molds is the clay that is mixed in the sand. Bentonite clay and the sand mixed together provide strong molds that can be created on an automated assembly line.

Sintered keramyske gietsân is benammen makke fan mineralen dy't Al2O3 en SiO2 befetsje en tafoege mei oare minerale materialen. In sfearysk gietsân makke troch poeder, pelletisearjen, sinterjen en gradearjende prosessen. Syn wichtichste kristal struktuer is Mullite en Corundum, mei rûne nôt foarm, hege refraktoriness, goede thermochemical stabiliteit, lege termyske útwreiding, impact en abrasion ferset, eigenskippen fan sterke fragmintaasje. Doe't de keramyske sân applicated yn grien sân proses, it koe fergrutsje de rauwe sân werbrûkte tiden, redusearre ôffal sân útstjit, ferbettere casting opbringst.