Iithayile ze-ceramic ze-alumina ezingagugiyoziimveliso zeseramikhi ezisebenzayo ezenziwe nge-aluminium oxide ecocekileyo kakhulu (Al₂O₃) ngokucinezela nangokutshisa ngobushushu obuphezulu. Umxholo wazo we-Al₂O₃ uhlala u-92%, 95%, okanye 99%, kunye noxinano oluqala kwi-3.60 g/cm³ ukuya kwi-3.90 g/cm³ kunye nokufunxwa kwamanzi ngaphantsi kwe-0.01%. Ezi zinto zibonisa ubunzima obuphezulu kunye nozinzo oluhle lweekhemikhali, zifanelekile kwiimeko zoshishino ezibandakanya impembelelo, ukungqubana okutyibilikayo, kunye nemidiya ebolileyo.
Iiparamitha zokusebenza eziqhelekileyo: Ubunzima beMohs obuyi-9, ubunzima beRockwell HRA 85-90, kunye nokumelana nokuguguleka okuphindwe ka-20-30 kunokwentsimbi yekhabhoni eqhelekileyo (ubunzima bokuguguleka obuyi-≤0.05 cm³ ngovavanyo lwevili lerabha yesanti eyomileyo ye-ASTM G65). Amandla okuguguleka afikelela kwi-250-350 MPa, ukuhanjiswa kobushushu malunga ne-25-30 W/(m·K), kwaye ubushushu bokusebenza buqala kwi--50 °C ukuya kwi-1200 °C (kuxhomekeke kudidi oluthile). Ezi datha ziqinisekisa ukuthembeka kwexesha elide phantsi kweemeko zokuguguleka okuphezulu kunye nobushushu obuphezulu.
Le mveliso isetyenziswa kakhulu ekukhuseleni ukuguguleka kwezixhobo eziphambili kwimizi-mveliso yesamente, intsimbi, umbane, imigodi, kunye namalahle, njengeeblade ze-classifier, ii-chutes, ii-pipe elbows, ii-cyclones, kunye nee-hopper linings. Iindlela zokufakela ziquka i-epoxy resin bonding, i-bolting, okanye i-welding (kusetyenziswa iithayile ze-ceramic ezigrunjwe kwangaphambili ezidityaniswe neepleyiti zerabha/zentsimbi). Ubukhulu obuqhelekileyo buqala kwi-5 mm ukuya kwi-25 mm; ubungakanani beethayile eziqhelekileyo buquka i-10 mm × 10 mm, 20 mm × 20 mm, kunye ne-50 mm × 50 mm isikwere okanye iimilo ezine-hexagonal ukuze kube lula ukusika nokubeka kwindawo.
Ukusebenzisa iithayile ze-alumina ceramic ezingagugiyo kwandisa kakhulu ubomi benkonzo yezixhobo kwaye kunciphisa ixesha lokungasebenzi lokugcinwa. Idatha yasentsimini ibonisa ukuba phantsi kweemeko ezifanayo zokusebenza, ii-linings ze-ceramic zihlala ixesha elide ngokuphindwe ka-3-8 kuneepleyiti zentsimbi ye-manganese ephezulu okanye i-alloy engagugiyo. Imveliso ayinamagnethi, imelana nokugqwala kwe-asidi/alkali (ngaphandle kwe-hydrofluoric acid kunye ne-alkali exineneyo eshushu), kwaye ayingcolisi izinto. Ukukhetha kufuneka kumisele umxholo we-Al₂O₃ kunye nobukhulu bethayile ngokusekelwe kwi-engile yempembelelo yokwenyani, ubungakanani be-particle, kunye nobushushu ukuze kufezekiswe ibhalansi phakathi kokusebenza kunye neendleko.
Ixesha leposi: Epreli-25-2026