Nyob rau hauv tus txheej txheem ntawm recarburizer casting, ob peb qhov teeb meem tseem ceeb yuav tsum tau ua tib zoo xav. Yog tias cov teeb meem no tsis raug daws kom txaus, qhov zoo ntawm cov casting yuav deteriorate, uas ua rau muaj qhov tsis xws luag xws li porosity thiab shrinkage.
Kev xaiv ntawm ib qho tsim nyog recarburizer yog qhov tseem ceeb rau kev ua tiav casting. Kev siv cov recarburizer kom raug nyob rau hauv lub qhov cub tsim nyog tuaj yeem ua rau muaj txiaj ntsig zoo. Nws yog ib qho tseem ceeb kom nco ntsoov tias cov ntsiab lus nitrogen sib txawv ntawm ntau hom recarburizers; Yog li ntawd, xaiv ib qho tsawg-nitrogen recarburizer yog qhov pom zoo, vim nws tuaj yeem txo qhov muaj cov tshuaj phem. Cov ntsiab lus titanium hauv cov hlau molten feem ntau yog tsawg, uas txo qis kev siv nitrogen. Txawm li cas los xij, kev nce hauv cov ntsiab lus nitrogen tuaj yeem ua rau muaj ntau qhov pores thiab lwm yam tsis xws luag, yuav tsum tau txheeb xyuas cov khoom siv rov ua dua tshiab nrog cov khoom zoo tshaj graphitization. Kev ua tsis tiav yuav ua rau muaj qhov nqus tsawg, qeeb qeeb, tsim slag, thiab kev qhia txog cov teeb meem uas cuam tshuam rau qhov zoo ntawm cov hlau molten. Lub sij hawm ntawm recarburizer ntxiv kuj tseem ceeb heev; nws tuaj yeem qhia tau thaum ntxov, nruab nrab, lossis lig theem ntawm casting, thiab tej zaum yuav ntxiv concurrently nrog steel seem. Ntxiv rau theem kawg tuaj yeem ua haujlwm ua ntej kev kho mob, uas tuaj yeem txhim kho qhov tsim ntawm graphite cores. Txawm li cas los xij, nws yog ib qho tseem ceeb kom tsis txhob muaj qhov sib ntxiv ntawm cov uas tsis muaj sulfur thiab tsawg-nitrogen recarburizers nyob rau theem no.
