Yashil qum jarayoni uchun keramik quyish qumi

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.

Sinterlangan keramik quyish qumi asosan Al2O3 va SiO2 o'z ichiga olgan minerallardan tayyorlanadi va boshqa mineral materiallar bilan qo'shiladi. Kukun, granulalash, sinterlash va tasniflash jarayonlari natijasida tayyorlangan sharsimon quyma qum. Uning asosiy kristall tuzilishi mullit va korund bo'lib, yumaloq don shakli, yuqori refrakterlik, yaxshi termokimyoviy barqarorlik, past termal kengayish, zarba va aşınma qarshilik, kuchli parchalanish xususiyatlariga ega. Yashil qum jarayonida keramik qum qo'llanilganda, u xom qumni qayta ishlatish vaqtini oshirishi, chiqindi qum emissiyasini kamaytirishi, quyma hosildorligini oshirishi mumkin.