Mullite Cib & Sillimanite Cib
Mullite cibyog ib lub cib refractory uas muaj zog heev nrog mullite (3Al₂O₃·2SiO₂) ua lub ntsiab siv lead ua, tsuas yog cov khoom siv siv lead ua kub siab ruaj khov hauv Al₂O₃-SiO₂ system. Nws muaj qhov ruaj khov kub heev (tsis muaj kev hloov pauv siab tshaj 1600 ℃ rau kev siv ntev, nkag mus tsawg heev), kev ua haujlwm zoo heev ntawm kev poob siab thermal (kev nthuav dav thermal tsawg, tiv thaiv kev tawg / tev tawm), kev tiv thaiv corrosion zoo heev (tiv taus acidic / nruab nrab slag scouring thiab yaj corrosion, me ntsiskev ua qias tuaj), lub zog compressive hauv chav sov thiab qhov pom tseeb porosity, nrog rau cov lus qhia tiav thiab kev hloov kho tau yooj yim, siv tau dav rau ntau yam kev lag luam kub siab, ua rau nws yog cov khoom siv refractory nyiam rau lub hauv paus ntawm ntau yam qhov cub kub siab.
Kev faib tawm khoom:
1. Lub cib Mullite uas tau sintered:Ua los ntawm bauxite thiab silica (1600-1700 ℃ sintering), Al₂O₃ 65% -72%. Tus nqi tsim nyog, laus, haum rau qhov kub nruab nrab-siab; muaj nyob rau hauv cov cib txheem / tshwj xeeb-puab, siv dav hauv cov ntaub ntawv tsim kho thiab metallurgy cub tawg.
2. Fused Mullite Cib:Fais fab-fused (saum toj no 1900 ℃), siv lead ua ntxhib dua, cov qauv ntom dua. Al₂O₃ 70% -75%, tiv taus kev kub ntxhov / xeb zoo dua, nkag mus tsawg heev. Haum rau cov tub ntxhais kub siab (saum toj no 1650 ℃) cov xwm txheej muaj zog (corrosion melting furnaces, high-end metallurgy).
3. Cib Zircon Mullite:Mullite + zircon (ZrSiO₄) additive (1650-1720 ℃ sintering). Al₂O₃ 68% -75%, ZrO₂ 8% -15%, muaj zog tiv taus kev yaig. Siv rau hauv cov khoom siv tseem ceeb ntawm lub qhov cub iav yaj thiab cov cub tawg uas tsis yog ferrous uas muaj kev yaig siab.
4. Lub Pob Zeb Mullite Uas Muaj Qhov Huv Si:alumina/silica uas muaj purity siab, Fe₂O₃≤0.2%, Al₂O₃ 72%-78%, refractoriness siab tshaj 1850 ℃. Tsis muaj kuab paug, ruaj khov zoo heev thaum kub siab, rau cov xwm txheej purity siab (precision metallurgy, electronic ceramic kilns).
5. Mullite Prefabricated Qhov Chaw:Kho kom haum raws li qhov loj thiab duab ntawm lub qhov cub, tsis tas txiav rau ntawm qhov chaw, ua haujlwm tau zoo, kaw zoo. Haum rau cov seem ntawm lub qhov cub tsis sib xws (qhov cub tawg kub, qhov cub tawg), txo qhov kev pheej hmoo ntawm kev poob cib.
Sillimanite cibyog ua los ntawm cov sillimanite ntuj (Al₂SiO₅, theoretical Al₂O₃ cov ntsiab lus 62.9%) los ntawm kev sib xyaw, kev tsim thiab kev kub siab sintering. Nws lub ntsiab lus tseem ceeb yog tias sillimanite dhau los ntawm kev hloov pauv theem mullitization ntawm qhov kub siab (1300-1500 ℃), nrog rau kev nthuav dav nruab nrab (2% -3%), uas tuaj yeem them rov qab qhov sintering shrinkage ntawm lub cev cib, ua rau lub cev cib denser thiab kaw zoo dua. Nws refractoriness yog 1770-1830 ℃, uas yog tshwj xeeb tshaj yog rau nruab nrab thiab siab kub ua haujlwm nrog kev hloov pauv kub loj thiab tshuaj xeb, nrog rau kev ua tau zoo heev.
Kev faib tawm khoom:
1. Cov Cib Sillimanite Ib Txwm Muaj:Cov sillimanite ntuj (Al₂O₃ 60%-62%) + bauxite/av nplaum, sintering ib txwm muaj. Porosity nruab nrab, thermal shock zoo, pheej yig; rau cov kub siab ib txwm muaj, kub hloov pauv ntau zaus (blast furnace throat, ceramic kiln furniture).
2. Cov Cib Sillimanite Uas Muaj Peev Xwm Siab:Cov sillimanite ntuj uas muaj qhov huv siab (Al₂O₃ 62%-65%), Fe₂O₃≤0.3%, 1580-1650 ℃ sintering. Denser, zoo dua alkali/xeb tsis kam; rau me ntsis tshuaj lom neeg xeb (iav kilns, non-ferrous smelting furnaces).
3. Sillimanite-Mullite Composite Cib:Sillimanite + mullite, kev hloov pauv theem tus kheej + kev ruaj khov kub siab. Al₂O₃ 63%-68%, sib npaug thermal shock/creep tsis kam; rau qhov kub hloov pauv loj, qhov kub siab load-bearing (hauv qab lub cub tawg, iav ntws channel).
Cov khoom siv cib Sillimanite:Cib channel, lub qhov dej ntws, yeeb nkab rotary, lub tais pub, lub nplhaib orifice, lub paddle stirring, punch, lub tog raj kheej pub, hluav taws thaiv slag cib, damper block, arch cib, pub lub tais npog, lub qhov hla qhov, burner cib, beam, npog cib thiab lwm yam ntau yam thiab specifications.
Cov txiaj ntsig tseem ceeb:
1. Kev Hloov Pauv Theem Tus Kheej-Kev Nthuav Dav:Kev nthuav dav mullitization kub siab offsets shrinkage, xyuas kom meej tias muaj compactness thiab zoo sealing.
2. Kev Ruaj Ntseg Thermal Sib Npaug:Kev nthuav dav thermal qis, kev tiv thaiv thermal zoo heev / kev puas tsuaj, tsim nyog rau kev hloov pauv kub ntau zaus.
3. Kev Siv Nyiaj Zoo:Cov khoom siv raw sillimanite ntuj, tus nqi qis dua li cov cib mullite, tsim nyog rau cov xwm txheej uas muaj kev cuam tshuam rau tus nqi.
4. Kev Tiv Thaiv Slag Zoo heev:Tiv taus kev xeb ntawm cov kua slag / iav thiab kev hnav kub siab, tsis yooj yim tev tawm.
5. Ntuj thiab Zoo rau Ib puag ncig:Tsis muaj cov khoom tsis zoo, cov khoom siv tsis muaj kuab paug, tsim nyog rau cov qhov cub uas zoo rau ib puag ncig.
| Cov khoom | PebQisMullite | Sintered Mullite | Sillimanite Mullite | Sib xyaw ua keMullite | ||||
| Cov Ntawv Qhia | RBTM-47 | RBTM-65 | RBTM-70 | RBTM-75 | RBTA-60 | RBTA-65 | RBTFM-75 | |
| Kev ua kom tsis muaj zog (℃) ≥ | 1790 xyoo | 1790 xyoo | 1790 xyoo | 1790 xyoo | 1790 xyoo | 1790 xyoo | 1810 xyoo | |
| Qhov Ceev Ntau (g / cm3) ≥ | 2.42 | 2.45 | 2.50 | 2.60 | 2.48 | 2.5 | 2.70 | |
| Pom tseeb Porosity (%) ≤ | 12 | 18 | 18 | 17 | 18 | 18 | 16 | |
| Lub zog tsoo txias (MPa) | 60 | 60 | 70 | 80 | 70 | 70 | 90 | |
| Kev Hloov Pauv Mus Ib Txhis (%) | 1400 ° × 2 teev | +0.1 -0.1 | | | | | | |
| 1500 ° × 2 teev | | +0.1 -0.4 | +0.1 -0.4 | +0.1 -0.4 | +1 -0.2 | ±0.2 | ±0.1 | |
| Refractoriness Under Load@0.2MPa(℃) ≥ | 1520 xyoo | 1580 xyoo | 1600 xyoo | 1600 xyoo | 1600 xyoo | 1620 xyoo | 1700 xyoo | |
| Creep Rate@0.2MPa 1200 ° × 2 teev (%) ≤ | 0.1 | ― | ― | ― | ― | ― | ― | |
| Al2O3 (%) ≥ | 47 | 64 | 68 | 72 | 60 | 65 | 75 | |
| Fe2O3 (%) ≤ | 1.2 | 0.8 | 0.8 | 0.7 | 1.0 | 0.8 | 0.5 | |
Mullite Cib:
1. Kev Lag Luam Hlau: Lub qhov cub tawg kub, lub qhov cub tawg, daim ntaub thaiv ladle, lub cub tawg hlau uas tsis yog hlau;
2. Kev Lag Luam Khoom Siv Hauv Tsev: Thaj chaw kub ntawm lub qhov cub ceramic, thaj chaw hloov pauv ntawm lub qhov cub rotary cement, lub qhov cub refractory tunnel;
3. Kev Lag Luam Iav: Lub tshuab hloov kho dua tshiab, channel, ntxhua khaub ncaws thiab ua haujlwm ntawm phab ntsa sab ntug dej ntawm lub cub tawg iav;
4. Kev Lag Luam Tshuaj: Petrochemical cracking furnace, high-temperature calciner, catalyst roasting furnace;
5. Qib Siab Tshaj Plaws: Lub tshuab hluav taws xob ceramic kiln, precision metallurgical furnace (haum rau hom high-purity).
Cov Cib Sillimanite:
1. Kev Lag Luam Hlau: Cov cib tiv thaiv hauv qab ntawm lub cub tawg, cov ntaub thaiv qhov ncauj ntawm lub cub tawg, thaj chaw tawm hlau, thaj chaw kub nruab nrab thiab qis ntawm lub qhov cub tawg kub;
2. Kev Lag Luam Iav: Ua haujlwm ntawm phab ntsa sab pas dej ua ke, cov kwj dej ntws, cov cib channel thiab cov cib regenerator checker ntawm cov cua sov iav yaj;
3. Kev Lag Luam Ceramic: Thaj chaw tua hluav taws ntawm lub qhov cub ceramic, rooj tog hauv qhov cub (saggar, txee), qhov cub hauv qhov av;
4. Kev Lag Luam Tshuaj: Lub cub tawg ua los ntawm cov hlau tsis yog ferrous, lub cub tawg ci kub heev, lub cub tawg ci sulfuric acid;
5. Lwm Cov Teb: Qhov kub siab ntawm cov khib nyiab pov tseg, cov cement kiln preheater lining (haum rau hom qub).
Cov Lus Nug Feem Ntau
Xav tau kev pab? Nco ntsoov mus saib peb cov rooj sib tham txhawb nqa kom tau cov lus teb rau koj cov lus nug!
Peb yog cov chaw tsim khoom tiag tiag, peb lub Hoobkas tshwj xeeb hauv kev tsim cov khoom siv refractory rau ntau tshaj 30 xyoo. Peb cog lus tias yuav muab tus nqi zoo tshaj plaws, qhov kev pabcuam ua ntej muag thiab tom qab muag zoo tshaj plaws.
Rau txhua txoj kev tsim khoom, RBT muaj lub kaw lus QC tiav rau cov tshuaj lom neeg thiab cov khoom siv lub cev. Thiab peb yuav sim cov khoom, thiab daim ntawv pov thawj zoo yuav raug xa nrog cov khoom. Yog tias koj muaj cov kev xav tau tshwj xeeb, peb yuav sim peb qhov zoo tshaj plaws los pab txhawb lawv.
Nyob ntawm seb muaj pes tsawg, peb lub sijhawm xa khoom txawv. Tab sis peb cog lus tias yuav xa khoom sai li sai tau nrog kev lees paub zoo.
Tau kawg, peb muab cov qauv dawb.
Yog, tau kawg, koj tuaj yeem mus xyuas RBT lub tuam txhab thiab peb cov khoom.
Tsis muaj kev txwv, peb tuaj yeem muab cov lus qhia zoo tshaj plaws thiab kev daws teeb meem raws li koj qhov xwm txheej.
Peb tau ua cov khoom siv refractory rau ntau tshaj 30 xyoo, peb muaj kev txhawb nqa kev txawj ntse thiab kev paub nplua nuj, peb tuaj yeem pab cov neeg siv khoom tsim cov cub tawg sib txawv thiab muab kev pabcuam ib zaug.
