Cov ntaub ntawv rwb thaiv tsev refractory rau hauv qab thiab phab ntsa ntawm lub qhov cub iav 2

2. Kev rwb thaiv tsev ntawm phab ntsa qhov cub:
Rau phab ntsa lub qhov cub, raws li kev lig kev cai, qhov chaw uas raug xeb thiab puas tsuaj tshaj plaws yog qhov dej ntws thiab cov pob qij txha cib. Ua ntej tsim cov txheej rwb thaiv tsev, cov haujlwm hauv qab no yuav tsum tau ua: ① zom cov pob zeb ntawm phab ntsa lub qhov cub kom txo cov pob qij txha ntawm cov cib; ② siv cov cib loj ntau li ntau tau kom txo cov pob qij txha cib. Cov khoom rwb thaiv tsev rau phab ntsa lub qhov cub feem ntau yog cov cib rwb thaiv tsev av nplaum sib dua.
Kev siv cov khoom zoocov khoom siv rwb thaiv tsev refractorytxiav txim siab lub neej ua haujlwm, kev siv hluav taws xob ntawm chav tsev, thiab cov zis ntawm cov qhov cub hluav taws xob thiab cov khoom siv kub siab. Kev txhim kho sai ntawm cov khoom siv rwb thaiv tsev refractory thiab kev tshawb fawb thiab kev txhim kho ntawm ntau yam khoom siv rwb thaiv tsev tshiab kuj tseem txhawb nqa kev txhim kho ntawm cov qhov cub hluav taws xob.