2022 isitena esitsha se-chrome corundum

Izibonelelo zeMveliso: i-porosity ephantsi, uxinizelelo oluphezulu, amandla aphezulu, ukumelana nobushushu obuphezulu, ukumelana nokubanda kakhulu kunye nobushushu obukhulu, ukumelana okuhle kwe-slag kunye nokuqina okuhle.

Ingcaciso yeMveliso

Izitena ezichasayo zeChromium corundum zidityaniswa zivela kwi-Al2O3 kunye neCr2O3 njengezinto eziphambili zokwenza izinto. Xa kuthelekiswa nezitena ezicocekileyo ze-corundum, ineepropathi ezingcono, ezinjenge-Refractoriness, ukuthambisa ubushushu be-deformation phantsi komthwalo, amandla e-flexural, ukunyuka kobushushu obuphezulu, uzinzo lobushushu obuphezulu bokumelana kunye nokumelana ne-slag corrosion.

Izitena zeChannel corundum zizitena zekorundum eziphikisayo eziqukethe iCr2O3. Kumaqondo aphezulu obushushu, iCr2O3 kunye neAl2O3 zenza isisombululo esomeleleyo esiqhubekayo. Ke ngoko, ukusebenza kobushushu obuphezulu bezitena ze-chromium corundum kubhetele kunezitena ezicocekileyo ze-corundum. Izitena ze-chromium corundum ezisetyenziswe kwiziko legesi le-petrochemical industry kufuneka libe yi-silicon ephantsi, i-iron ephantsi, i-alkali ephantsi, ubunyulu obuphezulu, kodwa ikwanobuninzi namandla. Izitena zeChannel corundum zisetyenziswa kakhulu, kwaye umxholo weCr2O3 ubukhulu becala uku-9% ukuya kwi-15%.

I-chrome corundum izitena zikwabizwa ngokuba zi-chromium corundum ephezulu yokuthintela izitena zesitayile. Yimveliso ephezulu ekhuthazwa kwintengiso kule minyaka idlulileyo. Yenziwe ngokudibanisa i-alumina Al2O3 kunye ne-chromium oxide Cr2O3 njengezinto eziphambili zokwenza izinto. Xa kuthelekiswa nezitena ezicocekileyo ze-corundum, ineepropathi ezingcono, ezinje ngokutsala kwakhona, ubushushu obuthambisa umthwalo, amandla e-Flexural, ukunyuka kobushushu obuphezulu, uzinzo lobushushu obuphezulu kunye nokumelana ne-slag corrosion. Izitena zeChannel corundum luhlobo lwezinto ezinqabileyo ezikumgangatho ophezulu, kwaye ubomi bayo benkonzo bunokufikelela kwiinyanga ezili-10 ukuya kwezi-18 emva kokugaya abasebenzisi abaninzi bokugaya.

Ukuziqhelanisa kubonise ukuba ukusetyenziswa kwe-chromium corundum ephezulu yokuthintela izitena zesitishi kwisitayile sokucofa eziko lokuqengqeleka ukufudumeza iicandelo ezinkulu, ukungqubana okuphezulu kwindawo nganye kunye nokuphuma okuphezulu, kungekuphela nje kunokwandisa ubomi benkonzo Ukucofa ishaneli kunye nokunciphisa ukuvalwa kweziko ixesha, ukwandisa imveliso, ukunciphisa ukusetyenziswa kwemali kunye nokugcinwa kweendleko, kunye nokunciphisa inani lokupholisa ngokukhawuleza kunye nokufudumeza okubangelwa kukuvalwa kwesithando somlilo, ukuze ubomi bebonke buphuculwe, kwaye izibonelelo ezibonakalayo zoqoqosho zinokufunyanwa.

Iimpawu zomzimba kunye neekhemikhali

iprojekthi	Isitena se-chrome oxide yezitena Cr-93	Isitena se-chrome oxide yezitena Cr-86	Isitena seChrome Corundum Cr-60	Isitena seChrome Corundum Cr-30	Isitena seChrome Corundum Cr-12
Cr2O3%	≥93	≥86	≥60	≥30	≥12
Al2O3%	–	–	≤38	≤68	≤80
Fe2O3%	–	–	≤0.2	≤0.2	≤0.5
I-porosity ebonakalayo	≤17	≤17	≤14	≤16	≤18
Ubuninzi bobunzima g / cm3	≥4.3	≥4.2	≥3.63	≥3.53	≥3.3
Ukunyanzelwa kwamandla kubushushu begumbi MPA	≥100	≥100	≥130	≥130	≥120
Layisha ukuqala kobushushu obuthomalalisayo ℃ 0.2MPa, 0.6%	≥1680	≥1670	≥1700	≥1700	≥1700
Utshintsho lwenqanaba lokuphinda uphinde ubambe umgca% 1600 ℃ × 3h	± 0.2	± 0.2	± 0.2	± 0.2	± 0.2
isicelo	Izitena ze-chromium eziphakamileyo zisetyenziswa ikakhulu kumacandelo eekhiln njengemizi-mveliso yamachiza amalahle, iicilns zeshishini leekhemikhali, ifayibha yeglasi engenazi-alkali, izitovu zokutshisa inkunkuma, njl .;
isicelo	Izitena zeChannel corundum zisetyenziselwa ubukhulu becala ulwelwesi lwee-carbon emnyama, amaziko okunyibilikisa ubhedu, amachiza okunyibilikisa amaziko eglasi, isinyibilikisi sokuqengqeleka kwesinyibilikisi sokufudumeza, kunye neqonga lokucofa.