Pasir pengecoran keramik untuk proses pasir hijau

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.

Pasir pengecoran keramik sing disinter utamane digawe saka mineral sing ngemot Al2O3 lan SiO2 lan ditambahake karo bahan mineral liyane. Wedhi pengecoran bunder sing digawe kanthi proses bubuk, pelletizing, sintering lan grading. Struktur kristal utama yaiku Mullite lan Corundum, kanthi bentuk gandum sing dibunderaké, refractoriness dhuwur, stabilitas termokimia sing apik, ekspansi termal sing kurang, impact lan resistance abrasion, fitur fragmentasi sing kuwat. Nalika wedhi Keramik ditrapake ing proses wedhi ijo, bisa nambah wektu digunakake maneh wedhi mentahan, suda emisi wedhi sampah, apik casting ngasilaken.