Menene tsarin harbe-harbe na tubali masu ratsa jiki?

The harbe-harbe tsari na refractory tubalin shi ne yafi aiwatar da ci gaba da bushewa da bazuwar kaolin don samar da lu’ulu’u (3Al2O3 · 2SiO2). SiO2 da Al2O3 a cikin bulo mai jujjuyawa suna samar da silicate mai ƙarancin narkewa tare da ƙazanta yayin aiwatar da harbe-harbe, wanda ke kewaye da lu’ulu’u masu yawa. Mafi girman zafin jiki yayin aikin harbe-harbe ana sarrafa shi gabaɗaya a 1350 ° C zuwa 1380 ° C. Idan an ƙara yawan zafin wuta na tubalin yumbu mai ƙananan porosity daidai (1420 ° C), raguwar tubalin da aka yi amfani da su zai karu kadan, don haka yawan tubalin tubalin zai karu kadan, kuma ana iya samun ƙananan porosity. rage.