Yog tias cov xuab zeb nrhiav tau hloov los ntawm cov xuab zeb ceramic hauv kev tsim cov castings, ntau cov teeb meem tshwm sim hauv kev tsim cov furan resin tus kheej-txheej xuab zeb txheej txheem tuaj yeem daws tau zoo.
Ceramic xuab zeb yog cov xuab zeb zoo nkauj kheej kheej nrog siab refractoriness raws li Al2O3. Feem ntau, cov ntsiab lus alumina yog ntau tshaj 60%, uas yog cov xuab zeb nruab nrab. Nws yeej tsis hnov mob nrog furan resin thiab hardener, uas tuaj yeem txo qis acid noj thiab txhim kho cov khoom zoo.
Piv nrog silica xuab zeb, tus nqi ntawm cov resin thiab hardener ntxiv rau cov xuab zeb ceramic yog txo qis. Thaum cov resin ntxiv yog txo los ntawm 40%, lub zog ntawm molding xuab zeb tseem siab dua li ntawm silica xuab zeb. Thaum tus nqi casting raug txo, cov roj tso tawm raug txo los ntawm cov xuab zeb molding los yog cov tub ntxhais, cov porosity tsis xws luag yog txo qis, qhov zoo ntawm casting yog txhim kho, thiab cov txiaj ntsig tau nce ntxiv.
Rau reclamation ntawm furan resin xuab zeb, tam sim no, txhua yam kev sib txhuam reclamation yog nrov nyob rau hauv Suav teb. Silica xuab zeb recycling adopts mechanical method. Thaum lub sij hawm rov tsim dua tshiab, nws yuav tawg, tag nrho qhov loj me ntawm cov xuab zeb rov ua dua tshiab yuav ua kom zoo dua qub, tus nqi sib txuas ntawm cov resin ntxiv yuav nce ntxiv, thiab qhov kev ua tau zoo ntawm cov xuab zeb molding yuav ua phem dua. Txawm li cas los xij, qhov loj me ntawm cov xuab zeb ceramic yuav luag tsis muaj kev hloov pauv los ntawm cov txheej txheem kev sib txhuam hauv 40 zaug, uas tuaj yeem ua kom zoo ntawm cov castings ruaj khov.
Tsis tas li ntawd, silica xuab zeb yog polygonal xuab zeb. Hauv kev tsim molding, lub kaum sab xis ntawm cov khoom me me thiab nruab nrab feem ntau yog tsim los ntawm li 1%. Ceramic xuab zeb yog spherical, thiab nws cov txheeb ze kev sib txhuam yog me dua silica xuab zeb, yog li lub kaum sab xis yuav raug txo kom raws li, txuag tus nqi ntawm machining tom ntej. Tus nqi reclaimation ntawm silica xuab zeb yog tsawg, tus nqi rov qab yog 90% ~ 95%, ntau cov khoom pov tseg raug tsim tawm, thiab muaj plua plav ntau hauv qhov chaw ua haujlwm ntawm lub rooj cob qhia. Tus nqi rov qab ntawm cov xuab zeb ceramic tuaj yeem ncav cuag ntau dua 98%, uas tuaj yeem txo cov khoom pov tseg zoo thiab ua rau lub rooj cob qhia ntau lawm ntsuab thiab noj qab nyob zoo.
Ceramic xuab zeb muaj siab refractoriness, ze rau spherical grain zoo thiab fluidity zoo. Thaum lub sij hawm tsim cov txheej txheem ntawm castings, yeej tsis muaj cov nplaum nplaum tsis xws luag yuav tshwm sim, uas tuaj yeem txo cov haujlwm ntawm kev tu thiab sib tsoo. Ntxiv mus, cov qib lossis cov txheej txheem tuaj yeem raug txo kom tsawg, ntxiv kom txo cov nqi ntawm cov castings.
Post lub sij hawm: Jun-14-2023
