Leben Mullite ah iyo leben Sillimanite ah
Leben Mulite ahwaa leben alumina ah oo waxqabad sare leh oo leh mullite (3Al₂O₃·2SiO₂) oo ah wejiga ugu weyn ee kiristaalka, walaxda kaliya ee deggan ee heerkulka sare leh ee ku jirta nidaamka Al₂O₃-SiO₂. Waxay leedahay adkeysi heerkul sare oo aad u xooggan (ma jiro isbeddel ka sarreeya 1600℃ isticmaalka muddada dheer, si aad u hooseeya oo u gurguurta), waxqabad shoog kuleyl oo aad u fiican (ballaarinta kulaylka oo hooseeya, ka hortagga dildilaaca/dillaaca), iska caabin daxalka oo aad u fiican (u adkaysta xoqidda aashitada/dhexdhexaadka ah iyo dhalaalidda daxalka, yarwasakhowga), xoog cadaadis heer-kulka sare iyo daloolo dhexdhexaad ah oo muuqda, oo leh qeexitaanno dhammaystiran iyo habayn dabacsan, oo si ballaaran loogu dabaqi karo warshadaha kala duwan ee heerkulka sare, taasoo ka dhigaysa agabka ugu habboon ee ka hortagga dahaarka xudunta ee foornooyinka heerkulka sare ee kala duwan.
Kala-soocidda Badeecada:
1. Leben Mullite ah oo Sinted ah:Waxaa laga sameeyay bauxite iyo silica (1600-1700℃ sintering), Al₂O₃ 65%-72%. Waa kharash-ool, qaan-gaar ah, ku habboon xaaladaha caadiga ah ee heerkulka dhexdhexaadka ah; waxaa laga heli karaa lebenno caadi ah/qaab gaar ah, oo si weyn loogu isticmaalo agabka dhismaha iyo foornada birta.
2. Leben Mullite ah oo la isku daray:Kuleyl koronto ku shaqeeya (ka sarreeya 1900℃), kiristaal qallafsan, qaab-dhismeed cufan. Al₂O₃ 70%-75%, iska caabin kuleyl oo heer sare ah/daxalka, gurguur aad u hooseeya. Ku habboon xaaladaha xoqidda xooggan ee heerkulka sare (ka sarreeya 1650℃) (foornooyinka dhalaalinta galaaska, birta heerka sare ah).
3. Zircon Mullite leben:Waxaa lagu daraa Mullite + zircon (ZrSiO₄) (1650-1720℃ sintering). Al₂O₃ 68%-75%, ZrO₂ 8%-15%, iska caabin nabaad-guur oo xooggan. Waxaa loo isticmaalaa qaybaha muhiimka ah ee foornada dhalaalaysa ee galaaska iyo foornada dhalaalaysa ee aan birta ahayn ee nabaad-guurka sare leh.
4. Leben Mullite ah oo Nadiif ah:Alumina/silica saafi ah oo sareysa, Fe₂O₃≤0.2%, Al₂O₃ 72%-78%, iska caabin ka sarreysa 1850℃. Xasillooni la'aan wasakhaysan, heerkul sare oo aad u fiican, xaalado saafinimo sare leh (birta saxda ah, foornada dhoobada elektarooniga ah).
5. Qaybaha Mullite ee la diyaariyey:Waxaa loo habeeyey cabbirka/qaabka foornada, jarista goobta ma jirto, hufnaan dhisme oo sareysa, shaabad wanaagsan. Ku habboon qaybaha foornada aan caadiga ahayn (shoolada kulul ee qarxa, foornooyinka dillaaca), yaraynta khatarta dhicitaanka lebenka.
Leben Sillimanite ahwaxaa laga sameeyay sillimanite dabiici ah (Al₂SiO₅, oo ah Al₂O₃ oo ka kooban 62.9%) iyada oo loo marayo isku-darka, sameynta iyo sintering heerkulka sare. Astaamaheeda asaasiga ah ayaa ah in sillimanite uu maro isbeddelka marxaladda dillitization heerkulka sare (1300-1500℃), oo ay weheliso ballaarinta mugga dhexdhexaadka ah (2%-3%), taas oo kaabi karta hoos u dhaca sintering ee jirka lebenka, taasoo ka dhigaysa jirka lebenka mid cufan oo si fiican loo shaabadeeyay. Qulqulkeedu waa 1770-1830℃, kaas oo si gaar ah ugu habboon xaaladaha shaqada ee dhexdhexaadka ah iyo kuwa sare leh oo leh isbeddel heerkul oo weyn iyo daxal kiimiko ah, oo leh waxqabad kharash oo heer sare ah.
Kala-soocidda Badeecada:
1. Leben Sillimanite Caadi ah:Sillimanite dabiici ah (Al₂O₃ 60%-62%) + bauxite/dhoobo, sintering dhaqameed. Forosity dhexdhexaad ah, shoog kuleyl oo wanaagsan, kharash yar; heerkulka caadiga ah ee sarreeya, isbeddelka heerkulka soo noqnoqda (hunguriga foornada qarxa, alaabta guriga ee foornada dhoobada ah).
2. Leben Sillimanite ah oo Nadiif ah:Sillimanite dabiici ah oo saafi ah (Al₂O₃ 62%-65%), Fe₂O₃≤0.3%, 1580-1650℃ sintering. Cufnaan, iska caabin alkali/daxalka oo ka wanaagsan; si loo helo daxalka kiimikada oo yar (foornooyinka galaaska, foornooyinka dhalaalka ee aan birta ahayn).
3. Leben Sillimanite-Mullite Composite ah:Sillimanite + mullite, isbeddelka wejiga oo is-cufan + xasillooni heerkul sare. Al₂O₃ 63%-68%, wuxuu dheellitiraa iska caabbinta shoogga/cidhiidhiga kulaylka; isbeddelka heerkulka oo weyn, culayska culeyska heerkulka sare (hoosta foornada qaraxa, kanaalka socodka galaaska).
Waxyaabaha lebenka Sillimanite:Leben kanaalka, godka socodka, tuubada wareega, saxanka quudinta, giraanta daloolka, ul walaaqaya, feedh, dhululubo quudin, leben dab-damis ah, baloog qoyaan, leben qaanso ah, daboolka saxanka quudinta, lebenka godka dhex mara, lebenka gubanaya, alwaax, lebenka daboolka iyo noocyo kale iyo qeexitaanno kale.
Faa'iidooyinka Muhiimka ah:
1. Is-xoojinta Is-beddelka Marxaladda:Ballaarinta heerkulka sare ee dillitiriga ayaa ka dhigaysa hoos u dhaca, taasoo hubinaysa isku-dhafnaan sare iyo shaabad wanaagsan.
2. Xasiloonida Kulaylka ee Dheelitiran:Ballaarinta kulaylka oo hooseysa, iska caabin kuleyl oo aad u fiican/iska caabin ah, oo ku habboon isbeddellada heerkulka ee soo noqnoqda.
3. Waxtarka Kharashka Sare:Walax ceeriin ah oo sillimanite dabiici ah, oo ka jaban lebenka mullite, oo ku habboon xaaladaha xasaasiga ah ee kharashka.
4. Iska caabinta Slag-ka ee aadka u fiican:Waxay u adkaysataa daxalka dareeraha ah/galaaska iyo xirashada heerkulka sare, si fudud looma furi karo.
5. Dabiici ah & Deegaanka u fiican:Ma jiraan wax wasakh ah oo waxyeello leh, wasakh yar oo agab ah, oo ku habboon foornooyinka deegaanka u fiican.
| Badeecadaha | SaddexHooseMulite | Sintered Mullite | Sillimanite Mullite | La isku darayMulite | ||||
| Tusmada | RBTM-47 | RBTM-65 | RBTM-70 | RBTM-75 | RBTA-60 | RBTA-65 | RBTFM-75 | |
| Dillaacsanaan (℃) ≥ | 1790 | 1790 | 1790 | 1790 | 1790 | 1790 | 1810 | |
| Cufnaanta Badan (g/cm3) ≥ | 2.42 | 2.45 | 2.50 | 2.60 | 2.48 | 2.5 | 2.70 | |
| Daloolada Muuqda (%) ≤ | 12 | 18 | 18 | 17 | 18 | 18 | 16 | |
| Xoogga Burburinta Qabow (MPa) | 60 | 60 | 70 | 80 | 70 | 70 | 90 | |
| Isbeddelka Toosan ee Joogtada ah (%) | 1400° × 2 saac | +0.1 -0.1 | | | | | | |
| 1500° × 2 saac | | +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 | 1580 | 1600 | 1600 | 1600 | 1620 | 1700 | |
| Creep Rate@0.2MPa 1200° × 2h(%) ≤ | 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 | |
Lebenka Mullite:
1. Warshadaha Birta: Shoolada kulul ee qaraxda, usha foornada qaraxa, dahaarka malqacad, foornada dhalaalinta birta aan birta ahayn;
2. Warshadaha Qalabka Dhismaha: Aagga heerkulka sare leh ee foornada dhoobada, aagga kala-guurka ee foornada sibidhka ee wareega, foornada tunnel-ka ee aan la qabsan karin;
3. Warshadaha Muraayadda: Dib-u-cusboonaysiinta, kanaalka, dharka dhaqidda iyo derbiga dhinaca barkadda ee foornada dhalaalaysa ee galaaska;
4. Warshadaha Kiimikada: Foornada jajabinta kiimikada ee batroolka, kaalshiyamka heerkulka sare leh, foornada dubista kaalshiyamka;
5. Goob Sare: Foorno elektaroonik ah oo dhoobo ah, foorno bir ah oo sax ah (oo ku habboon nooca saafiga sare leh).
Lebennada Sillimanite:
1. Warshadaha Birta: Lebenka ilaalinta foornada hoose, dahaarka cunaha foornada, aagga birta laga soo saaro, aagga heerkulka dhexdhexaadka ah iyo kan hoose ee foornada qaraxa kulul;
2. Warshadaha Muraayadda: Darbiga dhinaca barkadda shaqada, kanaalka socodka, lebenka kanaalka iyo dib-u-soo-nooleeyaha lebenka hubinta ee foornada dhalaalaysa ee galaaska;
3. Warshadaha Dhoobada: Aagga dabka ee foornada dhoobada ah, alaabta guriga ee foornada (saggar, shelf), dahaarka foornada tunnelka;
4. Warshadaha Kiimikada: Dahaarka foornada dhalaalaysa ee aan birta ahayn, foornada dubista heerkulka sare leh, foornada dubista ee aashitada sulfuric;
5. Goobo Kale: Qaybta heerkulka sare leh ee gubista qashinka, dahaarka kuleyliyaha hore ee sibidhka (ku habboon nooca caadiga ah).
Su'aalaha Badiya La Weydiiyo
Ma u baahan tahay caawimo? Hubi inaad booqato golayaashayada taageerada si aad u hesho jawaabaha su'aalahaaga!
Waxaan nahay soo-saare dhab ah, warshadeenu waxay ku takhasustay soo saarista agabyada aan la qabsan karin in ka badan 30 sano. Waxaan ballan qaadaynaa inaan bixinno qiimaha ugu fiican, adeegga ugu fiican ee iibka kahor iyo adeegga iibka kadib.
Nidaam kasta oo wax soo saar ah, RBT waxay leedahay nidaam QC oo dhammaystiran oo loogu talagalay halabuurka kiimikada iyo sifooyinka jireed. Waxaanan tijaabin doonnaa alaabta, shahaadada tayadana waxaa lala soo raaci doonaa alaabta. Haddii aad leedahay shuruudo gaar ah, waxaan isku dayi doonnaa sida ugu wanaagsan ee aan u dabooli karno.
Iyadoo ku xiran tirada, waqtiga keenisteenu wuu ka duwan yahay. Laakiin waxaan ballan qaadaynaa inaan sida ugu dhakhsaha badan u soo dirno iyadoo tayo la hubo la hubo.
Dabcan, waxaan bixinaa muunado bilaash ah.
Haa, dabcan, waa lagu soo dhaweynayaa inaad booqato shirkadda RBT iyo alaabtayada.
Ma jiro xad, waxaan ku siin karnaa talada iyo xalka ugu fiican iyadoo loo eegayo xaaladdaada.
Waxaan samaynaynay agab aan la qabsan karin in ka badan 30 sano, waxaan leenahay taageero farsamo oo xooggan iyo waayo-aragnimo qani ah, waxaan ka caawin karnaa macaamiisha inay naqshadeeyaan foosto kala duwan oo ay bixiyaan adeeg hal joogsi ah.
