Kev tsim kho casting tsom mus rau ntau qhov txuas xws li pin welding, bitumen painting, dej sib tov, pwm kho, vibrating, pwm tso tawm, kev lees paub qhov loj me, thiab qhov tseeb ntawm cov ntsiab lus ntsuas, thiab kev siv yog ua raws li qhov yuav tsum tau ua ntawm cov khoom siv thiab lub Hoobkas boiler.
1. Siv tus ntsia hlau los ntsia thiab tuav
Ua ntej lub zog dej, cov pins hauv cov cheeb tsam cuam tshuam xws li cov pob qij txha vuam ntawm qhov chaw cua sov thiab cov pob qij txha vuam ua ke thiab cov pob qij txha ntawm qhov chaw cua sov thaum lub sijhawm thauj mus los thiab kev teeb tsa yuav tsum tau ntim. Kho cov vuam thiab ntes cov ntsia hlau kom ntseeg tau tias cov pins tau teeb tsa raws li qhov ceev tsim. Ua ntej nchuav, thov ib txheej ntawm cov xim asphalt nrog qhov tuab ntawm> 1 hli rau txhua qhov chaw hlau, cov ntsia hlau thiab lwm yam hlau lossis qhwv cov khoom siv hluav taws xob.
2. Cov khoom xyaw, kev faib dej, kev tswj kev sib tov
Cov khoom xyaw raug ntsuas thiab cov dej raug faib raws li qhov yuav tsum tau ua ntawm phau ntawv qhia khoom siv ntawm tus neeg tsim khoom siv, thiab tus neeg raug xaiv tsa yog tus saib xyuas qhov ntsuas kom raug. Cov dej siv rau kev sib tov castables yuav tsum yog dej huv (xws li dej haus), nrog pH ntawm 6 ~ 8. Ua tib zoo saib xyuas qhov kev txiav txim ntawm kev ntxiv dej thiab lub sijhawm sib tov thiab sib tov. Nws tsis raug tso cai ntxiv dej raws li qhov xav tau, thiab nws tsis raug tso cai ua ntej lossis ntev lub sijhawm sib tov arbitrary. Tus nqi ntawm cov dej yuav tsum tsis txhob ntxiv rau ib qho chaw, thiab lub castable yuav tsum tau sib tov tag nrho. Nws yog qhov tsim nyog los ntxiv cov hlau fiber rau lub castable thaum lub sijhawm ntxiv dej thiab sib tov, thiab yuav tsum tsis txhob sib tov rau hauv agglomerates.
3. Kev tswj hwm qauv
Kev ua pwm castable yog ib qho txheej txheem tseem ceeb heev, thiab qhov zoo ntawm lub phaj pwm cuam tshuam ncaj qha rau qhov zoo ntawm lub castable. Kev tswj hwm template tsom mus rau kev lees txais nws qhov ruaj khov thiab qhov tseeb ntawm qhov ntev. Lub template yuav tsum ruaj khov thiab sib dhos kom nruj kom ntseeg tau tias tsis muaj kev hloov pauv lossis xoob thaum lub sijhawm nchuav. Lub pwm ntoo yuav tsum tau teeb tsa raws li qhov ntev ntawm daim duab kos thiab qhov tuab ntawm kev nchuav, ua ntej thiab sib dhos, thiab qhov sib txuas nruj. Lub pwm yog ua los ntawm 15 cm template thiab lub plaub fab ntoo, nrog qhov dav ntawm ≤500mm; lub pwm zoo li tshwj xeeb yog ua los ntawm lub plaub fab ntoo thiab npog nrog lub rooj tsavxwm peb-centimeter, qhov chaw yog txhuam nrog ob tus neeg sawv cev tso tawm kom ntseeg tau tias qhov tuab ntawm lub castable thiab qhov chaw tom qab kev tsim kho yog du thiab huv si yam tsis muaj pitting. Lub formwork yuav tsum tau kuaj xyuas thiab lees txais ua ntej kev tsim kho.
4. Kev tswj hwm dej ntws
Thaum nchuav cov castable, qhov siab ntawm txhua qhov pub yog tswj nyob rau hauv qhov ntau ntawm 200 ~ 300mm, qhov nrog tuab ntau dua 50mm yog nchuav nrog lub vibrator ntxig vibrating, thiab "sai sai thiab qeeb tawm" txoj kev yog siv los co tas li thaum lub sijhawm co kom tiv thaiv kev khaws cia Rau qhov qis dua thiab kev co xau, lub sijhawm co ntawm txhua qhov yuav tsum tsis txhob ntev dhau los tiv thaiv cov hmoov zoo los ntawm kev ntab. Thaum lub sijhawm co, tus pas nrig vibrating yuav tsum tsis txhob ntaus lub qauv thiab nuv ntsia hlau ntau dhau. Thaum nchuav cov castables ntau dua 50mm tuab, thaj chaw ntau dua 10m2 yuav tsum tau tsim ntawm ob qho tib lub sijhawm; kom ntseeg tau tias cov ntaub ntawv sib xyaw raug nchuav rau hauv lub sijhawm teev tseg, qhov nchuav ntawm cov khoom tsawg dua 50mm tuab yog qhov nyiam dua li kev tswj tus kheej thiab tsis siv neeg Degassed tus kheej ntws castable kev tsim kho.
5. Kev tseg cov pob qij txha nthuav dav
Vim tias qhov coefficient ntawm kev nthuav dav ntawm lub castable tsis sib xws nrog qhov coefficient ntawm kev nthuav dav ntawm cov hlau, nws yog kwv yees li ib nrab ntawm cov hlau. Feem ntau, muaj plaub txoj hauv kev los daws qhov kev nthuav dav ntawm lub castable: ib qho yog pleev xim rau cov xim asphalt ntawm tus pin thiab hlau nto, qhov tuab tsis tsawg dua 1 hli. Qhov thib ob yog qhov chaw loj-cheeb tsam pouring, uas yog poured rau hauv blocks txhua 800 ~ 1000 × 400, thiab cov khoom siv expansion sib koom ua ke yog lo rau ntawm sab kom tawm hauv qhov sib koom ua ke. Qhov thib peb yog cua cov ntawv ceramic fiber nrog qhov tuab ntawm 2 hli ntawm qhov chaw ntawm lub hood, cov yeeb nkab fittings, thiab cov hlau phab ntsa nkag mus rau hauv qhov chaw ua cov sib koom ua ke. Qhov thib plaub, riam tuaj yeem siv los txiav tawm ib nrab-thickness qhov sib txawv thaum lub sijhawm tsim cov yas, lossis lub qhov tuaj yeem punched hauv cov yas los daws qhov teeb meem ntawm kev nthuav dav.
Lub sijhawm tshaj tawm: Lub Kaum Hli-22-2021