Ua haujlwm lub tshuab ua kom sov melting kom nyab xeeb thiab saib xyuas 7 tus cwj pwm zoo!

(1) Frequently observe the melting situation in the furnace. The charge should be added in time before the charge is completely melted. It is found that the scaffolding should be treated in time to avoid the furnace wearing out due to the sharp rise of the molten iron temperature under the shed, which exceeds the melting point of the charge (quartz sand 1704℃). To

(2) Tom qab cov hlau yaj tau yaj, cov slag yuav tsum tau muab tshem tawm thiab qhov ntsuas kub yuav tsum tau ntsuas nyob rau lub sijhawm, thiab cov hlau molten yuav tsum tau tso tawm hauv lub sijhawm thaum nws mus txog qhov cub kub. Rau

(3) Raws li qhov xwm txheej ib txwm muaj, thaum cov phab ntsa crucible yog 1/3 ntawm lub hauv paus txheej txheej txheej tuab, lub tshuab ua kom sov yuav tsum tau muab rhuav thiab rov kho dua. Rau

(4) Cov hlau yaj yuav tsum tau muab pov tseg ib zaug ib lub lim tiam txhawm rau ntsuas qhov loj ntawm lub qhov cub tawg thiab saib xyuas nws qhov xwm txheej saum npoo av, kom nkag siab qhov xwm txheej tiag tiag ntawm lub qhov cub tawg hauv lub sijhawm, thiab daws teeb meem txhua lub sijhawm. Rau

(5) Tus recarburizer zoo tshaj ntxiv me ntsis los ntawm lub sijhawm ua cov txheej txheem ntxiv cov hlau. Ntxiv thaum ntxov yuav ua rau hauv qab ntawm lub cub tawg thiab yuav tsis yooj yim yaj mus rau hauv cov hlau yaj. Ntxiv qhov lig dhau yuav ua rau lub sij hawm yaj thiab cua sov, uas yuav tsis tsuas yog ua rau qeeb hauv kev kho kom haum, tab sis kuj tseem tuaj yeem ua rau kub ntau dhau. Qhov ntxiv ntawm ferrosilicon (nce Si), rau induction melting rauv nrog lub zog tsis muaj zog, vim tias Si cov ntsiab lus siab hauv cov hlau yaj yuav ua rau C tsis zoo, nws zoo dua ntxiv Si hlau tom qab, tab sis nws yuav ua rau hlau hauv lub cub tawg . Ncua hauv kev tshuaj xyuas cov tshuaj sib xyaw thiab hloov kho. Rau

(6) Tawm hauv cov hlau ua kua rau hauv lub cub tawg thaum lub sij hawm yaj tuaj yeem pab txhim kho kev siv hluav taws xob zoo ntawm qee lub qhov cub hluav taws xob thiab txhim kho lub zog hluav taws xob ntawm theem yaj. Txawm li cas los xij, cov hlau yaj tuaj yeem ua kom sov hauv lub cub tawg ntev thiab ua rau muaj kev phom sij rau cov hlau. Yog li ntawd, cov hlau molten uas seem yuav tsum suav txog 15% ntawm lub cub tawg. Cov hlau molten tsawg dhau yuav ua rau lub xeev muaj cua sov ntau dhau, thiab cov hlau ntau dhau yuav txo qhov kev siv cov hlau yaj thiab ua kom lub zog siv zog ntau dua. Rau

(7) Lub thickness ntawm tus nqi yog nyiam dua 200 ～ 300mm. Qhov ntau dua qhov tuab, qeeb dua qhov yaj.