Lub castable refractory yog ua los ntawm av nplaum thiab siab alumina raw cov ntaub ntawv ua kom sib xyaw thiab hmoov, ntxiv rau ib phau ntawv. Feem ntau siv rau hauv chaw tsim hluav taws xob ntau thiab lwm yam khoom siv thermal thiab cov chaw taws teeb rau hauv hluav taws xob. Cov khoom muaj hluav taws ua hauj, muaj kev ruaj siab thermal stability thiab qee yam ua haujlwm rau sulfate nres. Nws kub npaum li cas mas feem ntau yog 1350-1400 ° C, yog tias koj xav ua kom sov siab, koj tuaj yeem siv alumina xis mas thiab kho cov khoom seem. Cov khoom kuj muaj antibacterial acidity, zoo alkalinity, siab zog, thiab tsis muaj cracking tom qab hlawv.
Casting saum txheej txheem tsim: ua ntej sib dho rau sab saum toj template thiab ces nruab anchor. Tom qab lub pob zeb txha tau muab ntsia, lub pob hlau hlais yuav tsum tau soj ntsuam ib qho ntawm ib qho. Nws yog tsim nyog los xyuas kom meej tias txhua qhov sib tsoo thiab cov nqaj nqaj siab saum toj no raug ntsia, thiab qhov ntev yuav tsum tau tsim los ntawm cov duab kos qauv yuav tsum tau lav. Thaum txhim kho cov ntaub ntawv, ua kom lub thickness rau saum lub cub tawg uas tsim nyog los ntawm cov kos duab kos duab. Daim formwork yuav tsum muaj zog txaus thiab muaj zog kom tsis txhob deformation thaum tsim kho thiab kom huv si tag nrho cov khib nyiab nyob rau hauv daim formwork. Daim formwork yuav tsum ca thiab dawb ntawm irregularities thiab fab. Qhov tshwm sim, tshwj xeeb tshaj yog nyob rau ntawm kev sib tshuam nrog phab ntsa, yuav tsum tsis txhob muaj qhov tsis sib haum los mus tiv thaiv kom tsis muaj qhov tso ntawm castable thaum lub caij ntim.
Ib qho kev pom zoo ntawm 5 hli nruab nrab ntawm qab ntawm lub caj dab thiab lub hau yuav tsum tau muab coj los ua ke kom tus ciav hlau dai kom ruaj khov. Thaum lub sij hawm tus txheej txheem pouring, xyuas kom meej tias lub anchoring cib yog perpendicular mus rau lub template. Tom qab cov hmoov nplej, cia nws yuav kho thiab qhuav. Txhob haus dej thiab tswj kom nws, xyuam xim rau antifreeze. Tsis txhob khob saum lub taub hau thaum tshem cov pwm los tiv thaiv kev puas tsuaj rau lub ru tsev. Tom qab tso cov khoom sib dhos tiav lawm, nws yuav tsum xyuas seb qhov twg yog qhov khoov rau ntawm ib qho ntawm ib qho, thiab cov hlua khi yuav tsum tsis txhob muab faus rau hauv lub ru tsev rwb thaiv tsev.
Niaj hnub nim no, cov khoom siv hluav taws xob tsis zoo siv dav hauv ntau qhov cub tawg. Rau qhov kev siv txoj kev, cov ntaub ntawv tsis zoo yog tshuaj xyuas thiab nthuav tawm hauv kev nthuav dav:
Ua ntej ntawm tag nrho cov, thaum refractory castables yog khaws cia, nws yog ib qhov tsim nyog yuav tsum tau them sai sai rau kev tiv thaiv kev ya raws. Ua ntej tsim kho, nws yog ib qho tsim nyog yuav tau xyuas seb cov ntsia hlau puas zoo. Puas muaj cov ntsia thawv uas kub-resistant, cov nplaim uas yuav tsum tau coated nrog ib txheej xim, los yog Cov yas yog qhwv los tuav lub thermal expansion kev nyuab siab.
Qhov thib ob, qhov kev tsim kho yuav tsum huv thiab huv. Tsis txhob sib tov lwm yam tsis muaj impurities xws li cov thooj av, kua qaub, av nplaum, thiab lwm yam hauv cov yeeb ncuab, thiab tsis txhob sib tov cov ntaub ntawv saum toj no nrog rau cov tais diav thiab cov khoom siv uas muaj nyob rau hauv qhov sib txuas nrog cov yeeb ncuab. Ntxiv dua thiab, thaum lub sij hawm tsim kho, lub tshuab tov yog siv rau qhov sib tov, thiab hlau dag duav yuav tsum tsis txhob siv rau kev sib xyaw, thiab ntau hom thiab cov qauv ntawm cov khoom siv hluav taws xob tsis yog sib xyaw. Thaum siv, ncuav tag nrho tag nrho lub hnab ntawm cov ntaub ntawv rau hauv rab riam, tsis txhob tawm. Ntxiv cov dej haus huv thaum tov, do rau 2-3 feeb, thiab muab cov khoom xyaw kom ntau li ntau tau li ntawm ib nrab ib teev. Tom qab kho tiav lawm, sim ua kom nyob li 2-3 hnub. Kuv cia siab tias kev siv cov cuab yeej thev av no yuav pab koj.
