Ungazibala kanjani izindawo ezinokushisa okuphezulu okukhanyayo kwama-Refractories?

Lapho refractory kuthwalwa umthwalo othize ongaphansi kwamandla ayo wokugcina emazingeni okushisa aphakeme, kwenzeka ukusikeka kwepulasitiki, futhi inani lokukhubazeka lizokhula kancane kancane ngokuhamba kwesikhathi, futhi libhubhise nokuphindisela emuva. Lesi simo sibizwa ngokuthi ukungena. Lapho kuklanywa ama-kilns okushisa okuphezulu, ngokuya ngomthamo wokuthanjiswa komthwalo kanye nensalela yokuncipha kwensalela yezinto ezisetshenziswayo, ukuzinza kwevolumu yokushisa okuphezulu kwezinto ezisetshenziswayo kungafakwa ezingeni elithile. Izinga lokushisa eliphakeme lokungena kwezinto zokwakha ezisetshenziswayo libhekisa ekuguqulweni kwemikhiqizo ngaphansi kwezimo zokushisa eziphakeme njalo ngaphansi kwengcindezi.

Indlela yokuthola ukungena kwezinga lokushisa eliphakeme yile: ngaphansi kwengcindezi engapheli, ukufudumeza ngejubane elithile, ukubamba isikhathi eside ngemuva kokufinyelela izinga lokushisa elicacisiwe, ukuqopha ukusikeka kwesampula kusiqondiso sokuphakama ngokuhamba kwesikhathi, nokubala isilinganiso sokuhamba. Ifomula yokubala ithi:

P = (Ln-Lo) / L1 *

Lapho izinga lokushisa lokuminyanisa lokushisa okuphezulu kwe-P-high kwamasampuli womkhiqizo we-refractory,%;

Ln – ukuphakama kwesampula ngemuva kokushisa okungapheli nh, mm;

Bheka – ukuphakama kwesampuli ngemuva kokuqala kokushisa okungaguquki, mm;

L1 – Ukuphakama kwasekuqaleni kwesampuli, mm.

Inani le-deformation kanye nejika lesikhathi sezinto zokwakha ezingaphansi kokushisa okuphezulu nezimo zokulayisha ziyahlukahluka ngokushintsha kwezinto eziningi ezifana nezinto, izinga lokushisa, ukushisa okushisa njalo, usayizi wokulayisha, futhi umehluko mkhulu kakhulu. Ngakho-ke, kwimikhiqizo yezinto ezehlukene, izimo ezifana nokushisa okuphezulu kokushisa kokushisa kufanele kuchazwe ngokwehlukana ngokuya ngezimo zokusebenzisa kwazo.