Hauv ntiaj teb kev lag luam kub siab, kev nrhiav cov khoom siv refractory txhim khu kev qha uas tuaj yeem tiv taus qhov kub heev, kev puas tsuaj ntawm tshuaj lom neeg, thiab kev hnav khaub ncaws yog qhov tseem ceeb heev.Cov av nplaum uas siv tau, ib qho khoom siv refractory castable zoo tshaj plaws uas muaj av nplaum ua tus khi tseem ceeb, tau tshwm sim los ua ib qho kev daws teeb meem rau ntau lub lag luam. Nws qhov kev sib xyaw ua ke ntawm kev ruaj khov, kev ua haujlwm tau zoo, thiab kev siv nyiaj tsim nyog ua rau nws tsis tseem ceeb hauv cov xwm txheej uas kev ua tau zoo hauv qab qhov xwm txheej hnyav tsis tuaj yeem sib tham tau. Hauv qab no, peb tshawb nrhiav cov ntawv thov tseem ceeb ntawm cov av nplaum castable uas tsav nws qhov nrov thoob plaws ntiaj teb kev lag luam.
Ib qho ntawm kev siv tseem ceeb ntawm cov av nplaum castable yog nyob rau hauv kev lag luam metallurgical, lub hauv paus ntawm kev tsim khoom hnyav. Hauv kev ua hlau, nws yog dav siv los ua kab ladles, tundishes, thiab blast furnace runners. Cov khoom no yeej ib txwm raug rau cov hlau molten (txog 1,500 ° C lossis siab dua) thiab kev poob siab thermal thaum lub sijhawm casting thiab kev thauj mus los. Clay castable qhov kev ruaj khov kub zoo heev tiv thaiv kev tawg thiab deformation, ua kom ntseeg tau tias cov khoom siv ruaj khov thiab txo qhov kev pheej hmoo ntawm kev xau. Ib yam li ntawd, hauv cov hlau tsis yog ferrous - xws li txhuas, tooj liab, thiab zinc tsim - nws kab smelting furnaces thiab tuav tanks. Nws txoj kev tiv thaiv rau molten hlau corrosion thiab slag tawm tsam ntev lub neej kev pabcuam ntawm cov khoom tseem ceeb no, txo qis downtime rau kev saib xyuas thiab hloov.
Kev lag luam tsim iav kuj tseem siv cov av nplaum uas siv tau rau nws cov txheej txheem nyuaj. Cov cub tawg iav ua haujlwm ntawm qhov kub tshaj 1,600 ° C, nrog rau cov iav uas yaj ua rau muaj kev ntxhov siab ntau ntawm cov tshuaj lom neeg thiab cua sov rau ntawm cov ntaub hauv lub cub tawg. Cov av nplaum siv los ua kab rau ntawm phab ntsa ntawm lub cub tawg, cov kaus mom, thiab cov khoom tsim dua tshiab, muab cov khoom thaiv zoo tiv thaiv kev kub hnyiab thiab cov iav uas lwj. Nws lub peev xwm los tswj kev ua haujlwm zoo ntawm cov qauv thaum lub sijhawm ua haujlwm tas mus li ua kom cov iav zoo sib xws thiab txo cov kev cuam tshuam ntawm kev tsim khoom. Tsis tas li ntawd, nws siv rau hauv cov khoom siv ua iav xws li pwm thiab cov thoob, qhov twg nws txoj kev tiv thaiv kev hnav tiv thaiv qhov tsis zoo ntawm cov khoom iav kawg.
Hauv kev lag luam petrochemical thiab refining, cov av nplaum castable ua lub luag haujlwm tseem ceeb hauv cov txheej txheem uas muaj qhov kub siab thiab cov xov xwm hnyav. Nws ua kab rau cov cub tawg, cov khoom hloov kho, thiab cov tshuaj catalytic, uas ua haujlwm ntawm qhov kub txog li 1,200 ° C thiab tswj cov pa roj corrosive, roj, thiab catalysts. Cov khoom siv tiv thaiv kev puas tsuaj los ntawm cov tshuaj hydrocarbons, acids, thiab alkalis tiv thaiv cov khoom siv los ntawm kev puas tsuaj, ua kom muaj kev nyab xeeb thiab ua haujlwm tau zoo. Nws kuj tseem siv rau hauv cov ntaub thaiv boiler thiab cov pa roj flue hauv cov chaw tsim hluav taws xob, qhov twg nws tiv taus qhov kub siab thiab cov khoom sib txhuam uas cov pa roj flue nqa, txhim kho kev siv hluav taws xob thiab txo cov nqi kho.
Cov kev lag luam cement thiab cov khoom siv hauv tsev tau txais txiaj ntsig los ntawm qhov ua tau zoo ntawm cov av nplaum castable hauv cov txheej txheem kiln. Cov cement rotary kilns ua haujlwm ntawm qhov kub li ntawm 1,450 ° C, nrog rau sab hauv raug rau qhov kub siab, kev cuam tshuam los ntawm cov khoom siv raw, thiab kev tawm tsam tshuaj lom neeg los ntawm alkali thiab sulfate compounds. Av nplaum castable yog siv rau lub plhaub kiln, thaj chaw hlawv, thiab preheater cyclones, muab ib txheej ruaj khov thiab tiv taus cua sov uas ua rau lub kiln ua haujlwm tau zoo dua thiab ntev nws lub neej kev pabcuam. Nws kuj tseem siv rau hauv cov kilns lime thiab cov kilns ceramic, qhov twg nws qhov kev ua haujlwm tso cai rau kev yooj yim casting rau hauv cov duab nyuaj, hloov kho rau qhov tsim tshwj xeeb ntawm txhua qhov khoom kiln.
Dhau li ntawm cov lag luam tseem ceeb no, cov av nplaum castable pom cov ntawv thov hauv cov chaw hlawv pov tseg thiab cov khoom siv ua thermal. Hauv cov chaw pov tseg-rau-hluav taws xob, nws kab incinerators thiab combustion chambers, tiv taus qhov kub ntawm 1,000 ° C lossis ntau dua thiab tiv taus xeb los ntawm cov pa lom thiab tshauv. Nws lub peev xwm los tswj kev poob siab thermal thiab kev siv tshuab ua kom ntseeg tau tias muaj kev nyab xeeb pov tseg cov khib nyiab thaum tiv thaiv cov qauv incinerator. Hauv cov cub tawg kev lag luam rau kev kho cua sov - xws li annealing, hardening, thiab tempering - av nplaum castable kab cub tawg chambers thiab cov khoom cua sov, tswj qhov kub sib npaug thiab muab cov tshuaj refractory ntev.
Qhov ua rau cov av nplaum castable sawv tawm thoob plaws cov ntawv thov sib txawv no yog nws qhov kev hloov pauv tau yooj yim. Nws tuaj yeem sib xyaw nrog dej yooj yim thiab pov rau hauv txhua yam duab lossis qhov loj me, ua rau nws haum rau ob qho tib si cov khoom siv lag luam loj thiab cov khoom ua raws li kev cai. Nws cov nqi tsim nyog, piv rau cov ntaub ntawv refractory siab, kuj ua rau nws yog qhov kev xaiv zoo rau cov lag luam uas tab tom nrhiav kev sib npaug ntawm kev ua tau zoo thiab cov peev nyiaj. Txawm hais tias nyob rau hauv metallurgy, iav, petrochemicals, cement, lossis kev tswj hwm pov tseg, av nplaum castable muab cov txiaj ntsig zoo sib xws, txo cov kev pheej hmoo ua haujlwm thiab txo cov nqi mus sij hawm ntev.
Rau cov neeg ua haujlwm hauv kev lag luam uas tab tom nrhiav kev daws teeb meem refractory txhim khu kev qha uas ua tau raws li qhov xav tau ntawm qhov kub thiab txias, av nplaum castable yog cov lus teb. Nws muaj ntau yam kev siv, ua ke nrog kev ruaj khov thiab kev ua haujlwm tau zoo, ua rau nws yog cov khoom siv tseem ceeb rau cov txheej txheem kev lag luam niaj hnub no. Nqis peev rau hauv av nplaum castable hnub no thiab paub txog qhov sib txawv ntawm kev ua tau zoo, kev ua haujlwm zoo, thiab lub neej ntev rau koj cov khoom siv tseem ceeb.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-12-2025
