Tsawg cement castablesFeem ntau yog siv nyob rau hauv aluminium melting furnace static furnace phab ntsa, rauv saum, cub hauv qab, aluminium dej ladles, chutes, smelting khoom, high-temperature furnace linings, cua sov furnaces, soaking furnaces thiab lwm yam cua sov kho rauv. Tab sis dab tsi yuav tsum tau them sai sai rau thaum siv nws? Cov neeg ua haujlwm cuam tshuam ntawm lub tuam txhab tau muab cov lus qhia:
1. Yuav siv cov cement castable tsawg li cas
1. stirring: Kev siv dej huv yog qhov yuav tsum tau ua thaum lub sijhawm npaj, vim tias cov khoom tsis huv thiab cov khoom tsis huv tuaj yeem cuam tshuam rau kev ua haujlwm thiab ua haujlwm ntev ntawm cov khoom. Nyob rau tib lub sijhawm, nws tseem yuav tsum tau tswj cov dej kub hauv thaj tsam ntawm 10 mus rau 25 degree kom tsis txhob muaj teeb meem tshwm sim los ntawm cov dej evaporation sai lossis cov khoom kub ntau dhau. Ua ntej sib tov, cov khoom xyaw yuav tsum nruj me ntsis raws li qhov sib xyaw ua ke uas tau muab rau hauv phau ntawv qhia cov khoom. Txhawm rau kom kov yeej qhov tsis sib xws ntawm qhov sib faib me me uas yuav tshwm sim thaum lub sij hawm kev thauj mus los ntawm cov khoom sib xyaw qhuav, kev sib xyaw qhuav yuav tsum tau ua rau 1 feeb ua ntej. Qhov no tso cai rau cov aggregates pib sib tov sib npaug thiab nteg lub hauv paus zoo rau cov dej ntxiv tom ntej. Lub sijhawm nplawm tom qab ntxiv dej yuav tsum tau tswj ntawm 4 mus rau 5 feeb kom ntseeg tau tias txhua qhov sib xyaw ua kom muaj dej txaus, sib npaug sib npaug, thiab ncav cuag qhov xav tau sib xws thiab fluidity.
2. Pouring: Nyob rau hauv cov txheej txheem ntawm kev tsim kho ntawm refractory low cement castables, cov kauj ruam khiav hauj lwm yog qhov tseem ceeb heev. Ua ntej tshaj plaws, cov khoom sib xyaw ua ke thiab sib xyaw ua ke tau nrawm nrawm mus rau qhov chaw tsim kho, uas yog tus yuam sij kom ntseeg tau qhov tshiab ntawm cov ntaub ntawv thiab qhov txuas ntxiv ntawm kev tsim kho. Tom qab tuaj txog ntawm qhov chaw, cov neeg ua haujlwm tsim kho tau siv spades thiab cov hoppers tshwj xeeb kom raug nchuav cov castables rau hauv cov pwm npaj ua ntej.
3. Kev tshem tawm thiab kho cov formwork: Nyob rau theem no, ua tib zoo tshuaj xyuas qhov zoo ntawm lub ncuav yog qhov tseem ceeb heev. Kev tsis xws luag, xws li cov kab nrib pleb me me lossis qhov tsis sib xws, feem ntau tsis muaj kev cuam tshuam loj rau kev ua haujlwm tag nrho thiab yog li feem ntau tsis tas yuav tsum tau kho tshwj xeeb. Txawm li cas los xij, thaum pom muaj qhov tsis xws luag hauv qhov tseem ceeb lossis pom, lawv yuav tsum tau kho tam sim ntawd kom ntseeg tau tias cov refractory castable tuaj yeem ua tau raws li cov kev cai nruj ntawm cov txheej txheem ntau lawm.
2. Kev ceev faj rau kev siv cov cement castables tsawg
1. Npaj castables raws li proportions: Thaum lub sij hawm cov txheej txheem npaj, cov proportions sib raug zoo yuav tsum tau nruj me ntsis raws li kom tsis txhob ntxiv dej ntawm lub siab nyiam los yog ntxiv ntau castables. Cov kev faib ua tsis raug yuav cuam tshuam ncaj qha rau lub fluidity, solidification lub sij hawm thiab zaum kawg lub zog ntawm lub castable, yog li txo nws cov nyhuv siv.
2. Siv qhov sib npaug ntawm cov castable kom sai li sai tau: cov evaporation ntawm cov dej yuav tsis tsuas yog txo cov dej noo ntawm cov cement castables tsawg, tab sis kuj tseem tuaj yeem cuam tshuam rau nws cov khoom tom qab thiab kev ua haujlwm.
3. Castable cov ntaub ntawv yuav tsum tau muab cia qhuav
4. Tsim kom muaj qhov cub hluav taws xob tsim nyog: xyuas kom meej tias qhov kub thiab txias yog maj mam thaum lub sij hawm ci thiab cov dej noo tuaj yeem tawm tau sib npaug. Thaum tsim nyog, tshwj xeeb tawg-pov thawj additives tuaj yeem siv los txhim kho qhov tawg tsis kam ntawm cov khoom thiab txo cov kev pheej hmoo tshwm sim thaum lub sijhawm ci.
