Corundum bricks yog zoo li cov refractory cib ua los ntawm siab - purity alumina (Al₂O₃ cov ntsiab lus feem ntau ntau dua los yog sib npaug li 90%) thiab raug siab - kub hnyiab. Lawv raug cais raws li siab -kawg siab- alumina refractory khoom. Lub corundum theem yog lub ntsiab crystalline theem, muab lub cib tsis tshua muaj siab refractoriness thiab zoo heev tshuaj stability.
Cov cib no feem ntau siv nyob rau hauv siab -kub ua hauj lwm hauv ob sab phlu ntawm industrial furnaces thiab kilns. Lawv tuaj yeem siv ua ke nrog siab -alumina cib, zirconia- corundum cib, refractory castables, corundum-mullite castables, thiab lwm yam khoom siv los tsim cov khoom siv hluav taws xob ruaj khov thiab txhim khu kev qha.
Corundum Cib GYZ-95
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Ua haujlwm kub siab tshaj plaws (degree) |
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Load Softening Kub (0.2Mpa0.6%) / degree |
1700 |
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Qhov ceev (kg / m3) |
3100 |
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Compressive zog (MPa) |
Qhov kub thiab txias |
Ntau dua los yog sib npaug rau 100 |
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Hloov hauv Reheated Kab (%) |
1600℃× 3h |
-0.3~+0.3 |
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Chemical Composition (WT%) |
Al2O3(%) |
Ntau dua lossis sib npaug li 95 |
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SiO2(%) |
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Fe2O3(%) |
Tsawg dua los yog sib npaug li 0.3 |
Lub ntsiab tivthaiv ntawm corundum cib yog -Al₂O₃, lub crystalline theem uas muaj thermal stability zoo ntawm qhov kub thiab txias, nrog lub theoretical refractoriness tshaj 1800 degree. Piv nrog rau cov siab zoo tib yam -alumina cib, corundum cib tau hloov pauv qhov ntim tsawg dua ntawm qhov kub siab, tiv thaiv softening thiab kev sib tsoo, thiab tswj kev ncaj ncees ntawm lub qhov cub hauv ob sab phlu mus ntev. Cov cuab yeej no yog qhov tseem ceeb tshwj xeeb rau cov cuab yeej ua haujlwm tsis tu ncua ntawm qhov kub thiab txias, pab txo qis qhov tsis tau npaj tseg.
Nyob rau hauv cov nqe lus ntawm corrosion kuj, corundum bricks qhia tau zoo heev tiv thaiv rau acidic thiab nruab nrab slags, molten hlau, thiab ntau yam tshuaj ib puag ncig. Lawv cov qauv siab - ntom ntom txwv tsis pub nkag mus ntawm cov xov xwm corrosive, ua rau lub neej ua haujlwm ntev dua hauv cov hlau molten, tsis yog -ferrous hlau smelting, thiab lwm yam siab - qhov kub thiab txias cov tshuaj tiv thaiv ib puag ncig. Nyob rau hauv cov xwm txheej hnyav, lawv lub neej kev pabcuam feem ntau tuaj yeem tshaj li cov av nplaum cib lossis cov siab zoo tib yam -alumina cib los ntawm ntau dua 30%.
Los ntawm kev pom kev ua haujlwm zoo, corundum bricks muaj lub zog compressive siab nyob rau hauv chav tsev kub thiab zoo hnav tsis kam, ua rau lawv haum rau cov ntaub ntawv uas muaj zog yaig los yog siab load- bearing yuav tsum. Nrog rau cov txheej txheem tsim hluav taws xob tsim nyog, corundum cib tuaj yeem ua cov txheej txheem ua haujlwm, tsim cov qauv sib xyaw nrog hnav-cov khoom siv hluav taws xob tiv thaiv, silicon carbide cib, thiab lwm yam ntaub ntawv, ntxiv dag zog rau tag nrho kev ruaj ntseg thiab kev lag luam ntawm lub tshuab hluav taws xob.
Tsis tas li ntawd, Shandong Haixin Refractory Materials siv cov khoom siv ua tiav thiab kev tswj xyuas nruj kom zoo tswj cov purity, particle loj tis, thiab firing txheej txheem ntawm corundum bricks, kom ntseeg tau tias cov khoom zoo ib yam thiab muab kev txhawb nqa txhim khu kev qha rau loj - nplai engineering tej yaam num.
Corundum bricks feem ntau muaj qhov tseeb lub ntiajteb txawj nqus ntawm 3.5 mus rau 3.9 g / cm³. Kev ua tau zoo sib txawv heev nyob ntawm txoj kev tsim khoom. Muaj ob pawg tseem ceeb ntawm cov khoom sintered.
Ib pawg siv fused alumina xuab zeb ua cov sib sau ua ke, nrog alumina hmoov thiab ib qho me me ntawm av nplaum ua binders. Hom no nthuav tawm zoo thermal shock tsis kam vim siab porosity thiab coarse hais, tab sis cov aggregates yog loosely bonded thiab muab tsis tshua muaj yaig kuj. Yog li ntawd, nws yuav tsum tsis txhob nyob rau hauv kev sib cuag ncaj qha nrog molten hlau. Qhov tseem ceeb particle shedding tshwm sim thaum siv nyob rau hauv lub Upper txheej, yog li no yog tsis tshua muaj siv.
Lwm hom yog tsim los ntawm siab -siab molded alumina hmoov nrog tsawg porosity, tsawg li 5%. Hom cib no muaj kev yaig zoo heev tab sis tsis zoo thermal poob siab.
Tsis ntev los no, ib hom corundum cib uas muaj me me ntawm Y₂O₃ tau tsim. Nws nta lub zoo- interlocked crystal qauv, muab kev tiv thaiv zoo rau ob qho tib si yaig thiab thermal shock, ua kom pom qhov zoo tshaj plaws rau kev siv hauv kev lag luam.
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HlauIkev lag luam |
Tsis yog -ferrousMetals |
PetrochemicalIkev lag luam |
TsevMkhoomIkev lag luam |
Tshwj xeebIkev lag luamFurnaces |
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steel ladles, refining furnaces, thiab kub moj tej tawg system ntawm blast furnaces |
smelting thiab tuav furnaces rau txhuas, tooj liab, npib tsib xee, thiab lwm yam uas tsis yog -ferrous hlau |
siab - thaj chaw kub nyob rau hauv reactors thiab cracking furnaces |
ua hauj lwm txheej ntawm iav thiab ceramic kiln |
sim sim thiab siab -kub sintering rauv |
Q1: Dab tsi yog qhov txawv ntawm corundum cib thiab siab -alumina cib?
A:Corundum cib muaj cov ntsiab lus ntau dua alumina, nrog cov qauv crystalline dominated los ntawm -Al₂O₃ (corundum). Lawv muab cov khoom zoo tshaj plaws, kev tiv thaiv corrosion, thiab siab - qhov kub thiab txias piv rau cov siab zoo tib yam - alumina cib, ua rau lawv tsim nyog rau kev ua haujlwm hnyav.
Q2: Koj puas tuaj yeem muab cov kev cai tshwj xeeb?
A:Yog lawm. Peb txhawb kev tsim khoom ntawm cov khoom tsis yog- tus qauv qhov ntau thiab tsawg thiab corundum cib nrog cov yam ntxwv tshwj xeeb kom ua tau raws li qhov yuav tsum tau ua ntawm cov qauv sib txawv.
Q3: Puas yog corundum bricks haum rau ntev -lub sij hawm, tsis tu ncua siab - kub ua haujlwm?
A:Yog lawm. Nrog rau qhov ruaj khov -Al₂O₃ corundum theem raws li lub ntsiab crystalline qauv, cov cib no muaj qhov hloov pauv me me nyob rau hauv ntev -lub sij hawm kub kub thiab tiv taus softening lossis creep. Lawv tshwj xeeb tshaj yog haum rau kev ua haujlwm tsis tu ncua ladles, refining furnaces, thiab siab -kub reactors.
Q4: Puas yog nws yuav tsum tau siv cov tshuaj tshwj xeeb refractory thaum lub sij hawm masonry?
A:Nws raug nquahu kom siv siab -alumina lossis corundum refractory mortar uas phim cov corundum cib. Qhov no ua kom cov pob qij txha muaj zog thiab tag nrho siab - qhov kub thiab txias, ua kom lub neej ntev kev pab cuam ntawm lub qhov cub hauv ob sab phlu.
Q5: corundum bricks puas tuaj yeem siv ua ke nrog castables lossis precast Cheebtsam?
A:Yog lawm. Lawv tuaj yeem ua ke nrog cov ntaub ntawv xws li corundum-mullite castables, qis- cement refractory castables, thiab refractory precast Cheebtsam los ua ntau- txheej txheej rauv hauv ob sab phlu, txhim khu kev ruaj ntseg thiab tus nqi- ua tau zoo.
Q6: Puas yog corundum cib ua rau tev lossis tawg?
A:Thaum ua kom zoo thiab ua kom sov, corundum bricks nthuav tawm cov qauv kev ruaj ntseg zoo. Spalling feem ntau yog tshwm sim los ntawm cov cua kub ceev heev, kev tsim kho tsis raug, lossis kev hloov pauv sai sai hauv kev ua haujlwm, thiab tuaj yeem zam tau los ntawm kev ua kom lub tshuab ua kom zoo dua qub.
Q7: Lub neej ntev ntawm corundum cib yog dab tsi?
A:Kev pabcuam lub neej nyob ntawm kev ua haujlwm. Raws li ib txwm muaj, corundum cib feem ntau kav ntev li 30% -60% ntev dua li cov siab zoo tib yam -alumina cib, thiab hauv qee qhov siab - qhov kub thiab txias, lawv tuaj yeem ua haujlwm ruaj khov rau ntau xyoo.
Q8: Koj puas txhawb OEM / ODM kev koom tes?
A:Yog lawm, peb txhawb OEM thiab ODM kev sib koom tes. Peb muab cov kev daws teeb meem hloov tau los ntawm kev hloov kho cov khoom lag luam mus rau tag nrho - cov kev pabcuam saw hlau raws li cov neeg siv khoom xav tau.
Cim npe nrov: Tuam Tshoj corundum cib manufacturers, lwm tus neeg, Hoobkas