Ukusetyenziswa kwezitena zeAluminiyam yeKhabhoni kwiNkqubo yokuQalwa kweNsimbi etyhidiweyo

Ukuqwalasela i-5% ukuya kwi-10% (iqhekeza elikhulu) i-Al2O3 kwinxalenye ye-matrix ye-blast furnace izitena ze-carbon / graphite (iibhloko ze-carbon) ziphucula kakhulu ukuxhatshazwa kwe-corrosion yensimbi etyhidiweyo kwaye kukusetyenziswa kwezitena ze-aluminium carbon kwiinkqubo zokwenza isinyithi. Okwesibini, izitena ze-aluminiyam zekhabhoni zikwasetyenziswa kwi-iron etyhidiweyo yonyango lwangaphambili kunye nemikhombe yempompo.

Izitena ze-Aluminiyam zekhabhoni zokulungiswa kwentsimbi etyhidiweyo

Izitena ze-aluminiyam silicon carbide zisetyenziswa ikakhulu kwizixhobo zokuthutha intsimbi etyhidiweyo njengeitanki zentsimbi etyhidiweyo. Nangona kunjalo, xa olu hlobo lwezinto eziphikisayo zisetyenziselwa iitanki ezinkulu zentsimbi ezinyibilikisiweyo kunye nezixube zentsimbi, kwaye zidibana neemeko zokufudumeza ezinzima kunye nokupholisa, zivame ukuqhekeka, okukhokelela ekuxoxweni kwesakhiwo. Ukongezelela, ngenxa yokuba izitena ze-Al2O3-SiC-C ezisetyenziselwa iitanki ezinkulu zetsimbi kunye nezixube zentsimbi zihlala zinekhabhoni ye-15% kunye ne-thermal conductivity ephezulu njenge-17 ~ 21W / (m·K) (800 ℃), apho. kukunciphisa Ubushushu bentsimbi etyhidiweyo kunye nengxaki yokuguqula i-iron sheets yeitanki ezinkulu ezityhidiweyo kunye neemoto zokuxuba. I-countermeasure kukuphumeza i-conductivity ephantsi ye-thermal ngokususa i-SiC, icandelo le-thermal conductive kakhulu, ngelixa linciphisa umxholo we-graphite kunye nokucoca i-graphite.

Ngophando olusisiseko, kugqitywa ukuba:

(1) Xa umxholo wegraphite (iqhekeza elikhulu) kwizitena ze-aluminium carbon ingaphantsi kwe-10%, isakhiwo sayo sombutho siquka i-Al2O3 eyenza i-matrix eqhubekayo, kwaye ikhabhoni izaliswe kwi-matrix ngendlela yamanqaku eenkwenkwezi. Ngeli xesha, i-thermal conductivity λ ye-aluminium carbon brick ingabalwa malunga nefomula (1)