Lub nozzle ntawm zawv zawg rooj teeb yog tsuas yog ntsia rau hauv qab ntawm lub ladle, thiab nws cov kev pab cuam tej yam kev mob tau zoo heev txhim khu kev qha piv nrog lub monolithic stopper, thiab lub refractory ib feem ntawm nws tsis yog immersed nyob rau hauv molten hlau ntev. Tab sis rau lub rooj vag zawv zawg teeb, lub qhov rooj zawv zawg qhov rooj yog ib feem tseem ceeb, thiab nws qhov zoo cuam tshuam ncaj qha rau kev pab cuam lub neej ntawm lub rooj vag zawv zawg.
Lub taub hau sab sauv thiab sab qis ntawm lub qhov rooj zawv zawg teeb tsuas yog ua lub luag haujlwm ntawm cov hlau ntws, tab sis cov khoom siv ntawm lub taub hau sab saud yuav tsum tau tiv taus kub, corrosion thiab yaig ntawm cov hlau molten, thiab nws yog synchronized nrog lub neej. ntawm lub rooj zaum cib. Qhov qis nozzle feem ntau tsuas yog siv rau ib zaug xwb, thiab nws cov kev xav tau yog qis dua li ntawm lub taub hau sab saud.
Thaum lub sij hawm ua hauj lwm ntawm lub sab sauv thiab sab swb rooj vag daim hlau, fastening siab rau lawv, thiab lawv thov kom swb. Thaum lub sij hawm pouring txheej txheem, nws yog ib qhov tsim nyog los xyuas kom meej tias tsis muaj to ntawm molten steel ntawm cov slides. Yog li ntawd, nws yog ib qho tsim nyog los ua kom tiav qhov zawv zawg saum npoo ntawm daim hlau sab saud thiab qis kom ntseeg tau tias tsis tshua muaj siab sib luag thiab smoothness. Nws kuj tseem yuav tsum muaj cov khoom siv thermomechanical siab.
Thaum lub sij hawm pouring, zawv zawg qhov chaw ntawm lub sab sauv thiab qis daim hlau thiab lub bore rau ntws steel dais lub erosion thiab yaig ntawm kub kub molten hlau. Yog li ntawd, lub rooj vag swb yuav tsum muaj cov khoom ntawm qhov kub thiab txias, tiv thaiv corrosion, tev tawm, thermal shock thiab hnav tsis kam.
Tam sim no, kev xaiv ntawm cov rooj vag swb feem ntau suav nrog: siab alumina, magnesia, aluminium silicon carbide, alumina-magnesia, aluminium carbon thiab aluminium zirconia carbon hom.
Qee cov ntaub ntawv saum toj no tuaj yeem ua rau raug rho tawm haujlwm lossis tsis muaj hluav taws xob swb qhov rooj thaiv.
Rau qhov zoo tshaj plaws refractory swb rooj vag, vim yog tus nqi siab, cov khoom sib xyaw tuaj yeem siv tau, uas yog siv tau ntau dua thiab kev lag luam.
