Hauv ntej, cov ntsiab lus tseem ceeb ntawm refractory castable siv tshuab. Cov khoom xyaw ua kev cuam tshuam yuav tsum nchuav tsis pub dhau 30 feeb lossis nyob rau lub sijhawm teev tseg raws li cov lus qhia kev tsim kho. Yuav tsum tsis txhob siv cov castable pib. Refractory castable yog cov khoom sib xyaw ua ke, hmoov thiab binder, uas yog cov khoom siv hydraulic. Nws yuav tsum siv nyob rau hauv lub sijhawm teev tom qab sib xyaw nrog dej. Lub sijhawm siv tshwj xeeb yuav tsum yog nyob ntawm hom thiab cov khoom siv uas castable muab los ntawm cov khoom siv, thiab nws yog qhov zoo tshaj rau kev ua haujlwm raws li cov lus qhia kev tsim kho ntawm tus xa khoom.
Cov khoom ntim yuav tsum muab cia rau hauv lub tsev rau khoom nrog cov npog saum toj kawg nkaus, thiab yuav tsum tsis raug rau nag thiab noo. Lub txee lub neej yog tsib lub hlis. Thaum tsim cov castable, qhov kev sib koom tes nthuav dav yuav tsum tswj hwm nruj raws li kev qhia tshwj xeeb thiab nthuav dav txheej txheej coefficient. Kev sib koom tes nthuav tawm yuav tsum tseg rau txheej npoo av tiv toj nrog castable nrog ntaub ntawv lossis pob zeb plaub. Thaum lub sij hawm tsim kho, tus yuam khoom sib xyaw yuav tsum tau siv lub zog kom do cov khoom, thiab tsis muaj rab koob cuav siv tau. Nws yog txwv tsis pub sib xyaw ntau hom ntawm castable. Thaum siv, txhua yam khoom siv hauv txhua lub hnab (suav nrog cov hnab loj loj thiab cov hnab hmoov me me) yuav tsum muab nchuav rau hauv lub tov khoom, thiab tsis muaj ib qho seem lossis ib feem ntawm lawv yuav tsum nqa tawm los siv.
Nws tau hais tias qhov ntsuas kub ntawm cov khoom siv txhaj tshuaj yuav tsum yog 10 ~ 30 ℃. Thaum lub sijhawm tsim kho nyob rau lub caij ntuj sov, nws raug txwv tsis pub tso rau qhov chaw tawm mus qhib, thiab nws yuav tsum muab tso rau qhov chaw txias. Kev tsim kho ntu yuav tsum muab ntxoov ntxoo, thiab tov dej sib tov yuav tsum tsis txhob siab tshaj 20 ℃. Thaum lub caij tsim ua lub caij ntuj no, thaum qhov chaw tso cua sov tsawg dua 5 ℃, kev sib xyaw dej sov yuav tsum siv. Tom qab kev tsim kho, tsim nyog ntsuas rwb thaiv tsev yuav tsum ua kom lub chaw nyob ib puag ncig kub tshaj 5 ℃, thiab lub sijhawm demoulding yuav tsum tsis pub tsawg dua 48 teev. Thaum qhov ntsuas kub ntawm qhov kev tsim kho qis dua - 5 ℃, nws yog nruj me ntsis txwv tsis pub.
