Essentials of Safe Operation of Metal Melting Rauv

(1) Tshawb xyuas qhov cub hauv ob sab phlu. Thaum lub thickness ntawm lub qhov cub hauv ob sab phlu (tsis suav asbestos board) yog 65-80mm me dua qhov hnav, nws yuav tsum tau khaws cia.

(2) Tshawb xyuas cov kab nrib pleb. Cov kab nrib pleb saum toj no 3 hli yuav tsum tau ntim nrog cov khoom siv hluav taws xob hauv cov khoom siv los kho kom ntseeg tau tias cov dej txias tsis thaiv. 2. Kev ceev faj rau kev ntxiv cov hlau melting rauv

(3) Tsis txhob ntxiv cov nqi ntub dej. Thaum nws yog qhov tsim nyog kiag li, muab tus nqi ntub rau nws tom qab tso rau hauv cov nqi qhuav, thiab siv txoj kev ziab los ntawm cov cua sov hauv qhov cub kom evaporate cov dej ua ntej melting.

(4) Cov chips yuav tsum tau muab tso rau ntawm qhov seem hlau nplaum tom qab tapping kom ntau li ntau tau, thiab cov tswv yim ntawm ib lub sij hawm yuav tsum tsawg tshaj li 10% ntawm lub cub tawg, thiab nws yuav tsum sib npaug zos cov tswv yim.

(5) Tsis txhob ntxiv tubular lossis hollow sealant. Qhov no yog vim huab cua nyob rau hauv lub kaw nqi nthuav dav heev vim cua sov, uas tuaj yeem yooj yim ua rau tawg tawg.

(6) Txawm li cas los xij, muab tso rau hauv cov nqi ntxiv ua ntej tus nqi dhau los yuav yaj.

(7) Yog tias koj siv tus nqi nrog ntau xeb lossis xuab zeb, lossis ntxiv cov khoom siv ntau dhau ntawm ib lub sijhawm, “txhim kho” yooj yim tshwm sim, thiab cov kua theem yuav tsum tau xyuas ntau zaus kom tsis txhob “bridging”. Thaum “bypass” tshwm sim, cov hlau molten nyob rau hauv qis qis yuav overheat, ua rau corrosion ntawm lub qhov cub hauv ob sab phlu, thiab txawm lub cub tawg hnav tsoos tsho.

(8) Kev tswj kub ntawm cov hlau molten hauv cov hlau melting rauv. Nco ntsoov tsis txhob tsa cov hlau molten rau qhov kub siab tshaj qhov xav tau ntawm cov khoom siv casting thaum lub sij hawm tsim khoom. Kub kub kub molten hlau yuav txo tau lub neej ntawm lub cub tawg hauv ob sab phlu. Cov tshuaj tiv thaiv hauv qab no tshwm sim hauv cov kua qaub: Sio2 + 2C = Si + 2CO. Cov tshuaj tiv thaiv no tshwm sim sai sai thaum cov hlau molten nce mus txog 1500 ° C, thiab tib lub sijhawm, cov khoom sib xyaw ntawm cov hlau molten hloov, cov roj carbon tau hlawv, thiab cov ntsiab lus silicon nce.