Peb ntsuas qhov degree ntawm graphitisation ntawm cov khoom hauv nqe lus nug. Ib qho zoo graphite recarburiser yuav tsum muaj tshaj 95% graphite carbon. Yog tias qhov kub ua haujlwm siab tshaj 2700 degrees, cov ntsiab lus sulfur yog 0.02-0.05%, cov ntsiab lus nitrogen yog 100-200ppm, thiab tus nqi yog {{ 7}} yuan ib ton. Ib qho graphite recarburiser nrog qhov kub thiab txias ntawm 2000-2700 degrees kuj tseem hu ua semi-graphitised recarburiser. Cov khoom muaj 0.1-0.5% sulfur thiab 300-800ppm nitrogen, nrog tus nqi ntau ntawm 3000-4000 yuan.
Nws yog ib qho tseem ceeb kom ntseeg tau tias qhov zoo ntawm graphite recarburiser rau casting yog tus qauv siab tshaj plaws, vim qhov no yuav cuam tshuam ncaj qha rau lub peev xwm los yaj grey hlau nyob rau hauv lub cub hluav taws xob. Nws tsis yog qhov tsis yooj yim rau cov chaw tsim khoom siv pheej yig graphite recarburisers rau lub hom phiaj casting, txawm li cas los xij, qhov no tuaj yeem ua rau muaj teeb meem zoo, xws li tsim cov pores. Pore defects muaj ntau dua nyob rau hauv high-zoo grey cam khwb cia hlau nrog tsawg carbon thiab silicon cov ntsiab lus.
Ductile hlau castings muaj qhov porosity tsawg. Txawm hais tias siv magnesium thiab tsawg lub ntiaj teb, porosity tseem muaj. Kev siv cov qib qis graphite recarburiser muaj qhov cuam tshuam tsis zoo rau cov hlau nplaum, uas ua rau muaj kev sib kis ntawm cov pob graphite thiab cov matrix nrog leej faj thiab lwm yam impurities. Kev siv cov qib qis graphite recarburiser rau casting yog ib qho txiaj ntsig zoo rau cov nroj tsuag no. Qhov no yog kev ua lag luam tsis muaj txiaj ntsig.
Thawj txoj hauv kev los ntsuas cov graphitised recarburiser yog los ntawm kev txheeb xyuas cov ntsiab lus nitrogen. Nws yog ib qho tseem ceeb kom nco ntsoov tias muaj ob hom graphitisation: zoo thiab phem. Qhov kub thiab lub sijhawm ntawm calcination ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab qib ntawm graphitisation tiav. Lub tshuab tsis tiav graphitised carburising yuav muaj cov sulfur thiab nitrogen ntau. Hom tshuab no qee zaum hu ua semi-graphitised recarburiser. Nws muaj lwm txoj hauv kev zoo rau cov graphite recarburiser, uas feem ntau raug nqi 7, 000 lossis 8, 000 yuan.
