Isihlabathi Esiningi
Isihlabathi se-Mulliteuhlobo lwezinto eziphikisayo ze-aluminosilicate ezisetshenziswa kabanzi embonini yokwenziwa kwensimbi.
Ukwakheka Okuyinhloko Kwamakhemikhali:
Izakhi zamakhemikhali eziyinhloko zesihlabathi se-mullite yi-Aluminium Oxide (Al₂O₃) kanye ne-Silicon Dioxide (SiO₂). Ububanzi obujwayelekile bokwakheka kwamakhemikhali yilokhu: 42% ≤ Al₂O₃ ≤ 47% kanye no-51% ≤ SiO₂ ≤ 53%. Iphinde iqukethe amanani amancane e-Iron Oxide (Fe₂O₃), i-Alkali Metal Oxides (Na₂O+K₂O), kanye nezinye izakhi zokulandelela.
Inqubo Yokukhiqiza:
Isihlabathi se-mullite sivame ukukhiqizwa kusetshenziswa amaminerali acebile nge-aluminosilicate, njenge-kaolin, ubumba oluqinile, noma i-muscovite. Le nqubo ihilela ukuchoboza izinto zokusetshenziswa, ukuzixuba nezithasiselo, nokuzicindezela zibe sesimweni. Lezi zimo zibe sezifakwa e-calcium esithandweni sokushisa okuphezulu emazingeni okushisa aphakathi kuka-1300°C no-1550°C. Ngemva kwe-calcination, umkhiqizo uyachotshozwa, uhlolwe, uhlukaniswe ngogesi ukuze kususwe insimbi, kanye nezinye izinqubo zokuthola imikhiqizo yesihlabathi se-mullite yobukhulu obuhlukahlukene bezinhlayiya.
Imininingwane Yosayizi Wezinhlayiyana:
Isihlabathi se-mullite sitholakala ngezinhlobo ezahlukene zobukhulu bezinhlayiya. Ukunikezwa kwethu okuyinhloko kufaka phakathi: i-mesh engu-8-16, i-mesh engu-16-30, i-mesh engu-30-60, i-mesh engu-60-80, kanye ne-mesh engu-80-120. Ngaphezu kwalokho, sinikeza amazinga amahle kakhulu aziwa ngokuthi i-mullite powder, njenge-mesh engu-200 kanye ne-mesh engu-300.
Izici Zokusebenza:
Ukuqina Okuphezulu Kokugqama:Njengoba inamandla okubamba cishe u-1750°C, imelana ngempumelelo namazinga okushisa aphezulu ensimbi encibilikisiwe ngesikhathi senqubo yokubumba, ivikela igobolondo lesikhunta ekulimaleni.
Ukuqina Okuhle Kakhulu Kokushisa:Isihlabathi se-mullite sigcina ukuzinza kobukhulu lapho sishintsha izinga lokushisa. Simelana nokukhula noma ukufinyela kokushisa, okuqinisekisa ukunemba kokuphonswa.
Impahla Elula Yokushaqeka:Ngemva kokuphotha, isihlabathi se-mullite singasuswa kalula (ukushukuma) kusuka ekuphotheni. Lokhu kunciphisa isidingo somsebenzi wokuqeda olandelayo futhi kuthuthukise ukusebenza kahle kokukhiqiza.
Ikhwalithi Ephezulu Yokusakaza:Ukusebenzisa isihlabathi se-mullite njengezinto zegobolondo kuphumela ekubunjweni okubushelelezi. Kunciphisa amaphutha okubunjwa njengemigodi yesihlabathi kanye nemigodi yokuphefumula, ngaleyo ndlela kuthuthukisa ikhwalithi iyonke yale mithombo.
| Imininingwane | Ibanga Lesidlo Sakusihlwa | Ibanga 1 | Ibanga lesi-2 |
| I-Al2O3 | 44%-45% | 43%-45% | 43%-50% |
| I-SiO2 | 50%-53% | 50%-54% | 47%-53% |
| I-Fe2O3 | ≤1.0% | ≤1.5% | ≤2.1% |
| I-K2O+Na2O | ≤0.5% | ≤0.6% | ≤0.8% |
| I-CaO | ≤0.4% | ≤0.5% | ≤0.5% |
| I-TiO2 | ≤0.3% | ≤0.7% | ≤0.3% |
| I-Xaustic Soda | ≤0.5% | ≤0.5% | ≤0.7% |
| Ubuningi obukhulu | ≥2.5g/cm3 | ≥2.5g/cm3 | ≥2.45g/cm3 |
Ingqikithi yokubumba ngokunemba ukukhiqizwa kwegobolondo lesikhunta (inqubo yokumboza iphethini lesikhunta ngezendlalelo eziningi zezinto eziphikisayo ukuze kudalwe igobolondo langaphandle. Ngemva kokuba iphethini lesikhunta lincibilikile, kwakheka umgodi wokuthulula insimbi encibilikisiwe). Isihlabathi se-mullite sisetshenziswa ngokuyinhloko njenge-aggregate ephikisayo egobolondo lesikhunta futhi sisetshenziswa ezingqimbeni ezahlukene zegobolondo, ikakhulukazi kanje:
1. Igobolondo Lomphezulu (Linquma Ngokuqondile Ikhwalithi Yomphezulu Wokuphonswa)
Umsebenzi:Ingqimba engaphezulu ithintana ngqo ne-castment futhi kumele iqinisekise ukuthi indawo ibushelelezi (igweme ukuba lukhuni kanye nokuqhekeka) ngenkathi ibekezelela ukushaqeka kokuqala kwensimbi encibilikisiwe.
2. Igobolondo Langemuva (Linikeza Amandla Nokuphefumula Okuphelele)
Umsebenzi:Igobolondo langemuva liyisakhiwo esinezingqimba eziningi ngaphandle kwengqimba engaphezulu. Lisekela amandla aphelele egobolondo lesikhunta (livimbela ukuguquguquka noma ukuwohloka ngesikhathi sokuthululwa) ngenkathi liqinisekisa ukuthi umoya uyaphefumula (likhipha amagesi emgodini futhi livimbela ukubhoboka kwe-cast).
3. Izicelo Ezikhethekile Zokuqoqwa Okufunwa Kakhulu
Ukufakwa kwe-alloy okushisa okuphezulu:njengezinsika ze-turbine zenjini yendiza (amazinga okushisa athelayo angu-1500-1600°C), zidinga igobolondo lesikhunta ukuthi likwazi ukumelana namazinga okushisa aphezulu. Ukuqina okuphezulu kwesihlabathi se-mullite kungathatha indawo yesihlabathi se-zircon esibizayo (iphuzu lokuncibilika elingu-2550°C, kodwa kuyabiza), kuhlangatshezwane nezidingo zokumelana namazinga okushisa aphezulu ngenkathi kunciphisa izindleko.
Ukuze kusetshenziswe izinsimbi ezisabelayo:njenge-aluminium alloys kanye ne-magnesium alloys (ezisabela kakhulu futhi ezisabela kalula ne-SiO₂ esihlabathini se-quartz ukuze zakhe i-inclusions), ukuzinza kwamakhemikhali kwesihlabathi se-mullite kunganciphisa i-reactivity futhi kuvimbele ukwakheka "kwe-oxidation inclusions" ekubunjweni.
Ukuze uthole ukuphonswa okukhulu okunembile:njengezindlu zegiya le-wind turbine (ezingaba nesisindo samathani amaningana), igobolondo lesikhunta lidinga amandla aphezulu esakhiwo. Ingqimba engemuva eyakhiwe yisihlabathi se-mullite kanye ne-binder inamandla aphezulu, okunciphisa ingozi yokwanda nokuwa kwesikhunta.
4. Ukuhlanganiswa Nezinye Izinto Ezivuselela Umswakama
Ekukhiqizweni kwangempela, isihlabathi se-mullite sivame ukusetshenziswa kanye nezinye izinto ukuze kuthuthukiswe ukusebenza kwegobolondo lesikhunta:
Inhlanganisela nesihlabathi se-zircon:Isihlabathi se-zircon sisetshenziswa njengengqimba engaphezulu (ukuqinisekisa ukuthi indawo iphelele) kanye nesihlabathi se-mullite njengengqimba engemuva (ukunciphisa izindleko). Lokhu kufanelekile ekubunjweni okunezidingo eziphezulu kakhulu zendawo, njengezingxenye zezindiza.
Kuhlanganiswe nesihlabathi se-quartz:Kuma-castings anezidingo zokushisa eziphansi (njenge-alloy yethusi, iphuzu lokuncibilika elingu-1083℃), ingathatha indawo yesihlabathi se-quartz kancane futhi isebenzise ukwanda okuphansi kwesihlabathi se-mullite ukunciphisa imifantu yamagobolondo.
| Inqubo Yokubhekisela Kokwenza Amagobolondo Ngokucophelela | ||
| I-slurry evamile ebusweni, i-zirconium powder | I-mesh engu-325+i-silica sol | Isihlabathi: isihlabathi se-zirconium esingu-120 mesh |
| Isendlalelo sangemuva esithambile | I-mesh engu-325+i-silica sol+i-mullite powder engu-200 mesh | Isihlabathi: isihlabathi se-mullite esingu-30-60 mesh |
| Isendlalelo sokuqinisa | Impuphu ye-Mullite engu-200 mesh + i-silica sol | Isihlabathi: isihlabathi se-mullite esingu-16-30 mesh |
| Ukuvala udaka | Impuphu ye-Mullite engu-200 mesh + i-silica sol | _ |
I-Shandong Robert New Material Co., Ltd.itholakala eDolobheni laseZibo, eSifundazweni saseShandong, eShayina, okuyisisekelo sokukhiqiza izinto ezingaphili. Siyibhizinisi lesimanje elihlanganisa ucwaningo nentuthuko, ukukhiqiza, ukuthengisa, ukuklama nokwakha ihhavini, ubuchwepheshe, kanye nezinto ezingaphili kwamanye amazwe. Sinemishini ephelele, ubuchwepheshe obuthuthukisiwe, amandla aqinile obuchwepheshe, ikhwalithi yomkhiqizo enhle kakhulu, kanye nedumela elihle. Ifektri yethu ihlanganisa amahektha angaphezu kwama-200 kanti umkhiqizo waminyaka yonke wezinto ezingaphili ezimile ungaba amathani angama-30000 kanti izinto ezingaphili ezimile zingamathani ayi-12000.
Imikhiqizo yethu eyinhloko yezinto eziphikisayo ifaka:izinto zokuphikisa ze-alkaline; izinto zokuphikisa ze-aluminium silicon; izinto zokuphikisa ezingabunjwanga; izinto zokuphikisa ze-thermal insulation; izinto ezikhethekile zokuphikisa; izinto zokuphikisa ezisebenzayo zezinhlelo zokuphonsa eziqhubekayo.
imibuzo ejwayelekile ukubuzwa
Udinga usizo? Qiniseka ukuthi uvakashela izinkundla zethu zokusekela ukuze uthole izimpendulo zemibuzo yakho!
Singumkhiqizi wangempela, imboni yethu igxile ekukhiqizeni izinto eziphikisayo iminyaka engaphezu kwengu-30. Sithembisa ukukunikeza intengo engcono kakhulu, insizakalo engcono kakhulu yangaphambi kokuthengisa kanye neyangemva kokuthengisa.
Kuyo yonke inqubo yokukhiqiza, i-RBT inohlelo oluphelele lwe-QC lokwakheka kwamakhemikhali kanye nezakhiwo zomzimba. Futhi sizohlola izimpahla, futhi isitifiketi sekhwalithi sizothunyelwa nezimpahla. Uma unezidingo ezikhethekile, sizozama konke okusemandleni ethu ukuze sizilungiselele.
Kuye ngobuningi, isikhathi sethu sokulethwa sihlukile. Kodwa sithembisa ukuthumela ngokushesha ngangokunokwenzeka ngekhwalithi eqinisekisiwe.
Vele, sinikeza amasampula amahhala.
Yebo, vele, wamukelekile ukuvakashela inkampani ye-RBT kanye nemikhiqizo yethu.
Akukho mkhawulo, singakunikeza isiphakamiso nesixazululo esingcono kakhulu ngokuya ngesimo sakho.
Sesineminyaka engaphezu kwengu-30 senza izinto eziphikisayo, sinokusekelwa okuqinile kwezobuchwepheshe kanye nokuhlangenwe nakho okucebile, singasiza amakhasimende ukuklama ama-kiln ahlukene futhi anikeze isevisi eyodwa.
