Lub cub tawg yog ib qho ntawm cov khoom siv smelting uas yooj yim tshaj plaws, uas feem ntau yog siv los yaj cov hlau tsis muaj hlau nrog cov ntsiab lus melting tsawg, xws li tooj liab, txhuas thiab lawv cov alloys. Nyob rau hauv lub qhov cub zoo li no, cov hlau yog melted nyob rau hauv lub crucible, thiab lub tshav kub yog pauv mus rau tus nqi los ntawm lub crucible, thiab tus nqi thiab cov khoom combustion tsis nyob rau hauv kev sib cuag ncaj qha, yog li cov tshuaj muaj pes tsawg leeg ntawm cov alloy yog yuav luag tsis cuam tshuam. los ntawm lub cub tawg, thiab qhov kub thiab txias ntawm cov kua alloy kuj tseem sib xws, uas yog nws lub ntsiab kom zoo dua. Nws qhov tsis zoo yog txo qis thermal efficiency, roj noj siab, lub peev xwm me me, thiab kev ua haujlwm tsis zoo.
Thaum smelting, cov hlau yog muab tso rau hauv ib lub thawv hu ua crucible. Lub crucible yog muab tso rau hauv lub cub tawg thiab rhuab nrog diesel, hnyav roj, roj los yog coke li roj. Raws li qhov yuav tsum tau ua, lub crucible tuaj yeem ua los ntawm cov khoom sib txawv xws li graphite, refractory av nplaum, cam khwb cia hlau, thiab lwm yam. Muaj ntau ntau hom rauv lub cev, xws li hom pit, taag hom thiab rotating hom. Kuj tseem muaj qhov hluav taws xob tiv thaiv hluav taws xob, uas feem ntau muaj lub peev xwm me me thiab feem ntau yog siv hauv chav kuaj.
Lub tshuab hluav taws xob crucible muaj cov qauv yooj yim, kev nqis peev me me thiab kev tsim khoom sai, thiab tau siv dav hauv cov chaw tsim khoom ntawm cov khoom siv me me thiab nruab nrab uas tsis yog-ferrous alloy ua cov nroj tsuag thiab cov tshuab tsim khoom. Txawm li cas los xij, lub tshuab hluav taws xob crucible muaj kev siv hluav taws xob tsawg, cov khoom siv me me, kev ua haujlwm tsis zoo, thiab tsis haum rau kev tsim khoom loj.
Lub tshuab hluav taws xob crucible yeej ib txwm yog ib qho khoom siv rau smelting tooj liab alloys. Niaj hnub no, qhov kev faib ua feem ntawm crucible furnaces siv rau smelting tooj liab alloys yog loj heev. Nyob rau hauv ancient sij hawm, charcoal tau siv los ua lub tshav kub rau smelting, tab sis tam sim no nws yog hnyav roj, roj, hluav taws xob, thiab coke. Tsis ntev los no, txhawm rau txuag hluav taws xob thiab tiv thaiv ib puag ncig, thiab txhawm rau txhim kho kev ua haujlwm zoo, qee qhov chaw cua sov tau hloov pauv los ntawm cov roj hnyav rau roj thiab qee qhov rau qhov cub induction.
Tib yam yog pom nyob rau hauv crucible furnaces rau smelting lub teeb alloys xws li Al thiab Zn. Cov khoom siv melting loj tau hloov mus rau reverberatory furnaces, teb rauv, induction furnaces, thiab lwm yam, thiab me me rauv rau me me batch ntau lawm los yog casting tseem crucible furnaces. Vim yog kev txhim kho cov txheej txheem cua sov, kev txhim kho yav tom ntej yog kev siv cov roj huv thiab lub teeb thiab roj; Kev tuav me me tuaj yeem txuag hluav taws xob los ntawm kev siv cov khoom siv hluav taws xob ceramic thiab ntau txheej txheej phab ntsa.