Tshawb xyuas txoj hauv kev los txhim kho lub cev thiab tshuaj lom neeg ntawm ladle air-permeable bricks (1)

Breathable cib raug cais raws li lawv cov ntaub ntawv. Luoyang firstfurnace@gmil.com Co., Ltd. tau tsom mus rau txoj kev loj hlob, ntau lawm thiab kev muag khoom ntawm huab cua permeable bricks rau 17 xyoo, thiab yog ib tug kws chaw tsim tshuaj paus ntawm huab cua permeable cib.

(Daim duab) Luoyang firstfurnace@gmil.com Co., Ltd. patented khoom FS series slit-type air-permeable cib

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Ntau lub mills steel muaj teeb meem los ntawm kev ua tsis tau zoo thiab kev noj ntau dhau los ntawm kev hloov pauv ntawm cov cua ntsawj ntshab vim muaj teeb meem ntawm steel seepage thiab tev nyob rau hauv cov slits ntawm cov ventilating cib. kawm los ntawm kev paub dhau los. Raws li kev soj ntsuam ntawm qhov kev puas tsuaj ntawm cov cib seem, daim ntawv no qhia txog txoj hauv kev los txhim kho lub cev thiab tshuaj lom neeg ntawm cov cua ntsawj ntshab, tsis txhob nkag mus rau hauv cov minefields los ntawm cov neeg ua ntej, thiab ua kom muaj kev nyab xeeb thiab ua haujlwm zoo dua cov cib.

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1. Xaiv tabular corundum ua raw khoom

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Tabular corundum yog ib tug ntshiab sintered corundum uas tsis ntxiv tej additives xws li MgO, B2O3, thiab yog kiag li raug rho tawm haujlwm thiab shrinks. Nws tshwj xeeb hexagonal phaj-zoo li tus α-Al2O3 ntxhia theem qauv tuaj yeem txhim kho lub thermal ntim stability ntawm lub cib breathable thiab thermal shock kuj.

Thaum sintering ceev, cov pob zeb ntxhib tsim los ntawm recrystallization ntawm α-Al2O3 muaj cov me me puag ncig kaw lub ntsej muag kheej kheej, thiab muaj ntau qhov chaw kaw. Lub porosity yog roughly sib npaug rau cov fused corundum, nrog siab purity, zoo ntim stability, thiab tsis tshua muaj hnyav hnyav. Hlawv shrinkage, yog li cov refractory los yog castable ua los ntawm nws muaj zog thermal shock stability thiab flexural zog tom qab kub kub kho.

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2. Ntxiv cov hlau tsis tshua muaj zirconium

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Zirconium muaj qhov zoo heev corrosion kuj, siab melting point, ultra-siab hardness thiab lub zog. Vim nws muaj cov qauv tshwj xeeb. Muaj ntau qhov kev hloov pauv ntawm nws daim ntawv siv lead ua, monoclinic crystal system ntawm qhov kub thiab txias, tetragonal crystal daim ntawv ntawm qhov kub thiab txias, thiab cubic crystal daim ntawv ntawm qhov kub siab dua. Thaum lub monoclinic siv lead ua rhuab mus rau 1170 ° C, nws hloov mus rau hauv ib tug tetragonal siv lead ua daim ntawv, thiab thaum rhuab mus rau 2370 ° C, nws transforms mus rau hauv lub cubic siv lead ua daim ntawv. Lub melting point ntawm zirconium yog siab tshaj 1800 degrees, thiab lub melting point ntawm zirconium dioxide yog siab tshaj 2700 degrees.

Lub hom phiaj ntawm qhov xwm txheej uas huab cua-permeable cib puas los ntawm thermal spalling tshwm sim los ntawm thermal stress tshwm sim los ntawm qhov sib txawv ntawm qhov kub thiab txias (steel ladle yog ci ua ntej siv, qhov kub ntawm lub converter steel nce sharply, thiab kub poob sharply tom qab. cov hlau yog poured), los ntawm kev ntxiv pre-synthesized zirconium-raws li cov ntaub ntawv los ntawm Hloov lub cev thiab tshuaj zog ntawm cov huab cua-permeable cib, yog li zoo heev txhim kho lub thermal stability ntawm cov huab cua-permeable cib. Qhov no yog vim hais tias txawm hais tias corundum-raws li cov ntaub ntawv thiab zirconium-raws li cov ntaub ntawv muaj sib txawv thermal expansion coefficients, microcracks yuav tshwm sim nyob rau hauv high kub, tab sis cov tawg yuav nqus thiab disperse lub zog ntawm lub ntsiab tawg thiab disperse qhov teeb meem ntawm kev nyuaj siab concentration, yog li inhibiting lub Kev nthuav tawm ntawm cov kab nrib pleb, ntxiv rau ZrO2 nws tus kheej muaj cov khoom toughening, thiab lub toughness ntawm ventilated cib tuaj yeem txhim kho tau zoo.

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nyob rau hauv xaus

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Xaiv cov phaj zoo li corundum thiab ntxiv cov ntaub ntawv tsis tshua muaj hlau uas tuaj yeem txhim kho lub zog ntawm lub qhov cua cib tuaj yeem txhim kho cov thermal spalling thiab yaig tsis kam ntawm lub qhov cua cib, thiab txhim kho thermal stability thiab thermal shock resistance ntawm lub cib. Luoyang firstfurnace@gmil.com Co., Ltd. tsom rau kev tshawb fawb thiab kev tsim kho, tsim khoom, muag thiab kev siv cov cua txias cib. Nws yog ib lub chaw tsim khoom ntawm ventilating bricks. Txais tos hu rau peb kom paub meej.