1.Kev ua tau zoo ntawm silicon carbide corundumrefractoryyas
Silicon carbide corundum refractory yasyog ib yam khoom uas tsis zoo li refractory ua los ntawm siab -alumina bauxite clinker, corundum, mullite, thiab silicon carbide ua core aggregates, ua ke nrog tshwj xeeb binders thiab additives.
1.1Super hnav-resistant thiab corrosion{1}}resistant:
Cov ntsiab lus carbon SiC ntau dua lossis sib npaug li 60%, thiab Al₂O₃ cov ntsiab lus tuaj yeem ncav cuag 85%. Qhov kev sib xyaw ua ke no tuaj yeem tiv taus siab -kub airflow, cov khoom yaig thiab tshuaj lom neeg corrosion, thiab nws lub neej kev pab cuam yog qhov zoo dua li cov khoom hnav zoo tib yam- cov yas resistant.
1.2Yooj yim thiab siv tau zoo:
Nws tuaj yeem siv ncaj qha thiab tamped rau hauv cov duab yam tsis tas yuav tsum muaj pwm, ua rau nws haum rau qhov tsis sib xws thiab hnav; tsis muaj qhov cub kom qhuav yog xav tau tom qab kev tsim kho, uas ua rau lub sijhawm siv sijhawm luv.
1.3 Zoo heev - kub stability:
Kev ua haujlwm kub tuaj yeem ncav cuag 1200 degree, thiab qhov hloov pauv mus tas li tom qab cua sov ntawm 850℃tsuas yog -0.6 ~ 0%. Nws muaj qhov thermal shock tsis kam ntawm ntau dua lossis sib npaug rau 35 lub voj voog thiab tuaj yeem tiv taus qhov kub thiab txias hloov pauv yam tsis muaj kev tawg. Nws yog haum rau ntev -lub sij hawm ua hauj lwm kub kub.
1.4High bonding zog:
Tom qab molding, nws bonds nruj nreem rau lub substrate. Nrog mesh anchors spaced 120-150mm sib nrug, nws muaj peev xwm tiv thaiv tau detachment, ua rau nws tshwj xeeb tshaj yog haum rau kho qhov cub thiab hauv ob sab phlu siv nyob rau hauv complex cheeb tsam.
2.Kev thov scenarios ntawm silicon carbide corundumrefractoryyas
Silicon carbide corundum refractory yas yog dav siv nyob rau hauv siab - kub tseem ceeb Cheebtsam nyob rau hauv ntau yam lag luam:
2.1 Lub zog kev lag luam: Cov chaw ua haujlwm siab heev ntawm cov dej ntws hauv lub txaj boilers, xws li combustion zone, cyclone separator, return riser, heat radiation material area, and tail flue, as well as the boiler door filling and cold slag machine lined repair.
2.2 Metallurgy thiab Hlau: Siab- kub hnav- cov kab resistant rau cov cua kub cua sov thiab cov calcining rauv, thiab cov khoom uas raug rau cov khoom yaig xws li blast furnace kub blast qhov cub kav kav dej thiab cua daj cua dub collector sab hauv phab ntsa.
2.3 Ceramic cov ntaub ntawv hauv tsev: preheating cheeb tsam thiab firing cheeb tsam hauv ob sab phlu ntawm ceramic kilns, hloov chaw ntawm cement rotary kilns, decomposition rauv thiab lwm yam siab -kub plua plav scouring cheeb tsam.
2.4 Daim Ntawv Thov Kev Lag Luam Kev Lag Luam: Kho qhov tsis sib xws ntawm qhov sib txawv ntawm ntau yam siab - qhov kub thiab txias thiab tsim cov hauv ob sab phlu, tshwj xeeb tshaj yog tsim rau kev kho xwm txheej xwm txheej ceev, tsis tas yuav tsum muaj kev saib xyuas lossis tos.
3. Cov lus qhia txog kev tsim kho
3.1Ua ntej -kev npaj ua vaj tse
3.1.1 Kev npaj substrate: Qhov chaw tsim kho yuav tsum tau ntxuav ntawm av thiab hmoov av, coated nrog asphalt xim thiab tso cai kom qhuav tag; cov ntsia hlau thauj tog rau nkoj yuav tsum tau welded raws li tus tsim, nrog rau qhov sib nrug ntawm 120-150mm.
3.1.2 Kev npaj cov khoom siv: Cov khoom siv sib xyaw ua ke, tamping tshuab, ntsuas lub thoob, ntsuas qhov hnyav, txiav riam, hlau txhuam, thiab lwm yam. Lub tov khoom yuav tsum tau ntxuav ua ntej kom tshem tawm cov khib nyiab.
3.2Kev sib xyaw thiab molding
3.2.1Kev sib xyaw ua ke tswj: cov khoom siv matrix, cov hlua khi, thiab cov khoom siv nrawm tau ntim nyias. Qhov sib tov sib xyaw yog hloov raws li lub caij nyoog. Qhov chaw tsim kho kub yuav tsum yog 5-25℃. Tom qab cov khoom siv matrix qhuav sib xyaw yog tov rau 2 feeb, lub binder ntxiv thiab nplawm rau 5 feeb. Thaum kawg, lub accelerator ntxiv thiab stirred rau 1-2 feeb.
3.2.2 Lub sij hawm tsim kho: Nws yuav tsum siv li ntawm 40 feeb tom qab sib tov kom tsis txhob muaj cov khoom ua kom khov thiab ua tsis tau zoo; siv tamping lossis kis txheej txheem, tamping yuav tsum ntom thiab tiaj tus, lub thickness ntawm ib qho kev tsim kho yuav tsum yog raws li qhov tsim nyog, thiab qhov siab tshaj plaws yuav tsum tsis pub tshaj 60mm. Thaum kev tsim kho tsis sib xws, qhov tamped nto yuav tsum tau them nrog cov ntawv yas kom tsis txhob ziab tawm.
3.2.3Post-kev ua: Tom qab molding, tam sim ntawd luas lub nto thiab roughen tej yam unremoved seem; qhib 4-6 hli qhov cua qhov ntawm qhov chaw sov thiab txiav cov pob qij txha nthuav dav 5 hli dav thiab 50-80mm sib sib zog nqus raws li tus qauv tsim.
3.3Kev tu thiab kev kho tawg
3.3.1Natural curing: Tom qab kev tsim kho, kho nyob rau hauv qhov chaw qhuav ntawm 15-35℃rau 5-7 hnub, zam kev co thiab dej sib cuag; Yog hais tias lub qhov cub tsis tuaj yeem qhuav rau lub sijhawm, npog nws nrog cov ntawv yas, thiab tsim cov dej me me ntawm cov hauv ob sab hauv sab hauv yog qhov tshwm sim ib txwm muaj.
3.3.2 Kev kho qhov tawg: Thaum qhov dav yog 1-3mm, txau dej kom moisten thiab maj mam kais kom kaw; thaum lub dav yog 3-5mm (qhov kub thiab txias cheeb tsam) los yog 3-12mm (ib txwm cheeb tsam), sau nrog av nkos los yog yas; thaum qhov dav yog ntau tshaj 5 hli (qhov kub thiab txias cheeb tsam) los yog 12 hli (ib txwm cheeb tsam), khawb ib tug wedge-zoo li tus qhib uas loj nyob rau hauv thiab me me sab nraum, moisten thiab ces sau nrog yas.
4.Srub
4.1 Cov kev cai ib puag ncig: Khaws rau hauv qhov chaw txias, ntub dej thaum lub caij ntuj sov thiab ceev faj tiv thaiv kom khov thaum lub caij ntuj no; tsis txhob khaws cov kua qaub los yog alkaline los tiv thaiv kev puas tsuaj.
4.2 Kev tswj lub neej txee: Cov ntaub ntawv uas tau dhau los ntawm lawv lub txee lub neej yuav tsum tau rov kuaj dua rau qhov ntsuas plasticity (yuav tsum nyob nruab nrab ntawm 15-40%), thiab cov khoom uas tsis ua raws li tus qauv yuav tsum tsis txhob siv; cov ntaub ntawv khaws cia rau 1 xyoos yuav tsum tau rov ua kom qhuav ua ntej siv.
Silicon carbide corundum refractory yas, nrog rau nws qhov zoo ntawm kev hnav thiab corrosion kuj, kev tsim kho yooj yim, thiab siab - qhov kub thiab txias, tau ua tiav cov txiaj ntsig ntawm kev txo nqi thiab kev txhim kho kev ua haujlwm siab hauv siab - qhov kub thiab txias kev lag luam: kev siv lub voj voog luv luv los ntawm ntau dua 30%, cov nqi kho mob raug txo los ntawm 50%, thiab kev pab cuam lub neej ntawm cov ntaub ntawv txuas ntxiv los ntawm 2-3 zaug piv nrog cov ntaub ntawv zoo tib yam. Los ntawm nruj me ntsis ua raws li cov qauv kev xaiv, kev tsim qauv, thiab kev khaws cia, nws qhov kev ua tau zoo tuaj yeem ua kom tiav. Nws yog qhov tsim nyog rau kev tsim kho thiab kev saib xyuas ntawm kilns hauv kev lag luam xws li fais fab, metallurgy, thiab ceramics, thiab tshwj xeeb tshaj yog tsim rau kev tsim kho hauv qhov nyuaj thiab kho qhov xwm txheej ceev.