Txoj Kev Tshem Tawm Cua Qhov Los Ntawm Cov Hlau Castings
Mar 29, 2024| Ua ntej, hloov lub rooj vag qauv
Cov duab ntawm steel casting muaj ib qho tseem ceeb ntawm kev tswj ntawm casting kub thiab kev hloov ntawm pouring kev taw qhia. Kev tsim lub rooj vag tsim nyog tuaj yeem zam qhov kev ntxhov siab thiab kev cuam tshuam ntawm qhov chaw, thiab txo qhov muaj roj seem hauv cov hlau castings. Yog li, tsim rooj vag tsim nyog yog ib txoj hauv kev zoo los txo cov porosity hauv cov txheej txheem ntawm cov hlau casting.
Qhov thib ob, nce qhov kub ntawm casting
Casting kub yog ib qho tseem ceeb cuam tshuam rau qhov zoo ntawm cov hlau castings. Thaum qhov kub ntawm qhov casting tsawg dhau lawm, nws yuav ua rau lub fluidity tsis txaus, uas ua rau cov roj tsis yooj yim rau kev tso tawm tag nrho, ua rau pom qhov pores hauv cov hlau cam. Yog li ntawd, thaum lub sij hawm casting txheej txheem, qhov tsim nyog nce nyob rau hauv qhov kub thiab txias yuav pab tshem tawm cov pores nyob rau hauv lub cam khwb cia hlau.
Thib peb, nce carbon enhancer
Nyob rau hauv tus txheej txheem ntawm steel casting, ntxiv ib tug npaum li cas ntawm carbon enhancer yuav zoo inhibit qhov tsim ntawm pores. Qhov sib ntxiv ntawm cov pa roj carbon monoxide tuaj yeem txhawb cov nag lossis daus ntawm cov pa roj, thiab txo qhov muaj peev xwm ntawm npuas tsim thiab tsub zuj zuj thaum lub sij hawm casting txheej txheem, thiaj li ua tau zoo txhim kho qhov teeb meem porosity hauv cov cam khwb cia hlau.
Plaub, lub tshuab nqus tsev casting
Nqus casting yog ib txoj hauv kev zoo los txo cov teeb meem porosity hauv steel casting. Txoj kev siv lub tshuab nqus tsev casting, uas tuaj yeem tswj tau cov roj seem hauv cov txheej txheem casting, kom tsis txhob tsim cov pores hauv cov cam khwb cia hlau.
Qhov teeb meem ntawm porosity nyob rau hauv steel casting yog feem ntau ntsib nyob rau hauv cov txheej txheem casting. Txhawm rau daws qhov teeb meem no, hloov lub rooj vag qauv, nce qhov kub thiab txias, ua kom cov pa roj carbon ntau ntxiv thiab siv lub tshuab nqus tsev tuaj yeem txo qhov xwm txheej ntawm porosity hauv steel castings. Hauv cov txheej txheem casting, txoj kev tsim nyog yuav tsum raug xaiv raws li qhov xwm txheej tshwj xeeb los txo qhov tshwm sim ntawm qhov porosity, thiaj li ua kom zoo thiab ua haujlwm ntawm cov hlau casting.