Yuav ua li cas paub qhov txawv ntawm qhov zoo ntawm graphite recarburizer rau casting

Yeej peb saib cov℃ntawm graphitization. Ib qho zoo graphitizer muaj ntau dua 95-98% graphitic carbon. Yog tias kev ua ntsuas kub ntawm cov graphite cracker yog siab dua 2700 degrees, cov neeg Sulphur cov ntsiab lus yog 0.0.05% ppm, thiab tus nqi yog- 7000-9000 yuan ib tuj. Graphite recarburizer nrog kev xam kub ntawm 2000-2700 degrees tseem yog 0.1-0.5, nitrogen {} ppm, thiab tus nqi yog- 3000-4000 Yuan.

Qhov zoo ntawm graphite casting recarburizer yog tus nqi los ntxiv ntau cov teeb meem hluav taws xob ua rau cov teeb meem hluav taws xob zoo nrog pore qhov tsis xws luag thaum lub sijhawm nws siv. Rau cov xim txho cam khwb cia hlau, thaum cov pa roj carbon thiab silicon yog tsis pom tseeb, tab sis pore cov ntsiab lus pom tseeb, thiab pore tej cov ntsiab lus pom tseeb hauv cov castings yog loj.

Rau cov yas hlau castings, lub porosity qhov kev tsis taus tsis pom tseeb. Magnesium thiab tsis tshua muaj lub ntiaj teb muaj cov nyhuv degassing muaj zog, tab sis qhov tsis xws luag tseem tshwm sim los ntawm lub sijhawm. Cov nyhuv ntawm cov graphite recarburizer nyob rau cov hlau uas yog cov neeg tuaj noj mov thiab lwm yam kev cuam tshuam, uas cuam tshuam nrog cov pob zeb ntawm graphite graphite thiab cov tsos ntawm txawv txav matrix. Nws pom tau tias cov nroj tsuag no tam sim no uas tau siv cov qib qib qis dua ntawm cov khoom siv ua pov rau cov nqi, muab tag nrho tus nqi (suav nrog kev poob ntawm seem). Nws yog qhov tsis muaj txiaj ntsig.

Qhov taw qhia tseem ceeb rau kev sib piv cov khoom siv graphitized recarburizer yog cov ntsiab lus nitrogen. Qhov sib txawv ntawm qhov zoo thiab tsis zoo graphitization yog pom tseeb. Lub sijhawm kub thiab ntsuas kub los txiav txim siab txog qib ntawm graphitization. Ib nrab graphitized carburizer muaj cov ntsiab lus uas siab thiab cov ntsiab lus nitrogen. Qee qhov hu nws ib nrab teeb tsa recarburizer. Piv nrog tus nqi ntawm tag nrho graphite coke coke coke coke coke coke coke coke coke coke coke coke coke coke cib, {{8} {8} {8} Yuan.