Nhanganyaya yekushanda kwezvidhinha zvinofema

Chidhinha chinofema chigadzirwa chitsva chine hupenyu hurefu, kuchengetedza simba uye kuderedzwa kwekushandisa, ine dhizaini yakarongeka, kugadzikana kwakanaka kwekushisa, kusimba kwekukura kwevhu, kushorwa kwevhu, uye kuramba kwepermeability, kuputika kwakanyanya, kushanda kwakachengeteka uye kwakavimbika, uye hupenyu hurefu hwebasa. Features.

Slag resistance

Kuti uvandudze zvinhu zve slag kuramba uye mvura yesimbi yekupinda nemishonga, Cr2O3 kana chikamu chromium corundum inowanzo kuwedzerwa kune corundum spinel mweya-inokwanisika zvidhinha. Cr2O3 uye a-Al2O3 vane imwechete yekristaro chimiro. Cr2O3 haingogadzirise iyo slag kuramba kwechinhu, asi zvakare inowedzera iyo yekunyorovesa kona pakati pezvinhu uye nesimbi yakanyungudutswa, uye zvakanyanya kunatsiridza iko kuvharika kweporera kwechifema chinofema nekuda kwekupinda kwesimbi yakanyungudutswa.

Uchishandisa Cr2O3 poda yakatsetseka uye Al2O3 pakupisa kwakanyanya kugadzira mhinduro yakasimba yealuminium uye chromium uye yakazvimiririra chromium-ine girazi chikamu, chikamu chemvura chinoumbwa kana chasangana neslag mune yakanyungudutswa simbi yekunyungudutsa ine imwe viscosity, nokudaro kudzivirira slag musimbi yakanyungudutswa kubva pakukanganisa mhepo-inopindika zvidhinha Corrosion; Panguva imwecheteyo, inogona kutora iron oxide uye magnesium oxide mu slag, uye kuumba dense spinel muchikamu chekushanda chezvidhinha zvinopisa, izvo zvinovandudza kumira kwe slag kwezvidhinha zvinopisa.

Nekudaro, mushure mekuwedzera Cr2O3 kune izvo zvinhu, mushure mekupisa-kupisa kupisa kana kushandisa, Cr3 + yakaiswa oxidized kuCr6 +, inova chepfu uye inosvibisa nharaunda. Naizvozvo, kuchengetedza simba uye kuchengetedza kwezvakatipoteredza, kushandiswa kweCr2O3 kunofanira kudzivirirwa zvakanyanya sezvazvinogona, uye nekutsiva zvinhu zvakasvibirira, iko kupisa kwekushisa pasina kuwedzera Cr2O3 kunogona kusvika padanho rekuwedzera Cr2O3.

Thermal kuvhunduka kuramba

Iyo huru yekukuvadza nzira yemhepo-inopindirwa zvidhinha ndeye thermal shock damage. Nekuwedzera kunoramba kuchiwedzera kwetembiricha yekubata, pane mutsauko mukuru wetembiricha pakati pekushanda uye nepakati pebasa panzvimbo yekushanda yezvidhinha zvinofefetera, izvo zvinoda kuti zvinhu zvive nepamusoro zvakanyanya kupisa kwekutyisa kupikisa. Iyo spinel chikamu chinounzwa mune inokandwa, uye iyo yekupisa kutyisa kupikisa kwemhepo-inopinza zvidhinha ichavandudzwa.

Iyo oxide kana isiri-oxide yakawedzerwa mumhepo ine zvidhinha inoumba yakasimba mhinduro chikamu pamwe nehuremu pakupisa kwakanyanya, inowedzera simba repamusoro-tembiricha, inovandudza kukwana kwechidhinha, uye inodzivisa kukukurwa kwechitinha chine mweya yakaumbwa slag mune ladle. Mushure mekudziya kwakanyanya kupisa kupisa kwezvidhinha zvinobvumidzwa nemhepo, mashandiro ayo anovandudzwa kusangana nezvinodiwa zvekushandisa.