Thaum lub sij hawm melting txheej txheem, vim yog cov nplaum nplaum ntawm lub cub tawg, qhov tob tob ntawm cov clicks, thiab calibration ntawm lub crucible, qhov saum npoo ntawm cov khoom yog breathable thiab flammable. Vim li no, lub qhov ua pa yuav tsum tau muab tso rau hauv, uas yog, cov hlau puag ncig yog muab tso rau hauv qhov airtight ib feem ntawm cov ntaub. Tsis txhob qhib nws. Txoj kev no feem ntau siv rau hauv ferrosilicon smelting kom nce huab cua permeability.
Qhov chaw uas ventilated lugs yuav tsum tau pierced:
1. Qhov qis ntawm lub cev vertebral lossis thaj chaw loj ntawm cov khoom siv tsis zoo rau huab cua permeability.
2. Nyob ib ncig ntawm qhov chaw tua hluav taws.
Piercing lub qhov muag ventilated tuaj yeem ua tiav cov hom phiaj hauv qab no:
1. Ua kom cov pa roj carbon monoxide ntau ntau tom qab cov tshuaj tiv thaiv tawm sai sai, uas tsis yog tsuas yog ua kom lub ntsej muag preheating ntawm cov khoom siv rauv, tab sis kuj txhim kho cov huab cua permeability ntawm cov khoom nto, nthuav cov crucible, thiab accelerates cov tshuaj tiv thaiv nyob rau hauv. lub cub tawg.
2. Txo qhov tshwm sim ignition thiab txo cov cua sov.
