I-Mullite Sand
Ulwazi Lomkhiqizo
Isihlabathi se-Mullitei-aluminium silicate refractory material, evame ukusetshenziswa enqubweni yokuphonsa yensimbi engenasici. I-refractoriness imayelana ne-1750 degrees. Ukuphakama kwe-aluminium esihlabathini se-mullite, i-iron iyancipha, futhi uthuli luba luncane, ikhwalithi yomkhiqizo wesihlabathi se-mullite ingcono. Isihlabathi se-Mullite senziwa ngokufakwa kwezinga lokushisa eliphezulu kwe-kaolin.
Izici:
1. Indawo ephezulu yokuncibilika, ngokuvamile phakathi kuka-1750 no-1860°C.
2. Ukuzinza okuhle kwezinga lokushisa eliphezulu.
3. I-coefficient ephansi yokwandisa okushisayo.
4. Ukuzinza kwamakhemikhali aphezulu.
5. Ukusatshalaliswa kosayizi wezinhlayiyana okunengqondo kuvumela ukukhethwa nokulungiswa okusekelwe kuzinqubo ezihlukene zokulingisa kanye nezidingo zokusakaza.
Inkomba Yomkhiqizo
| Ukucaciswa | Ibanga Lesidlo Sakusihlwa | Ibanga loku-1 | Ibanga lesi-2 |
| I-Al2O3 | 44%-45% | 43%-45% | 43%-50% |
| SiO2 | 50%-53% | 50%-54% | 47%-53% |
| 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% |
| Ukuminyana kwenqwaba | ≥2.5g/cm3 | ≥2.5g/cm3 | ≥2.45g/cm3 |
Izinhlelo zokusebenza
Umnyombo wokubunjwa okunembayo ukukhiqiza igobolondo lesikhunta (inqubo yokumboza iphethini ye-wax ngezingqimba eziningi zezinto eziphikisayo ukuze kwakhiwe igobolondo elingaphandle. Ngemva kokuncibilika kwephethini ye-wax, kwakheka imbobo yokuthela insimbi encibilikisiwe). Isihlabathi se-Mullite sisetshenziswa ngokuyinhloko njenge-refractory aggregate kugobolondo lesikhunta futhi sisetshenziswa ezendlalelo ezahlukene zegobolondo, ikakhulukazi ngale ndlela elandelayo:
1. Igobolondo Elingaphezulu (Inquma Ngokuqondile Ikhwalithi Yokuphezulu Yokusakaza)
Umsebenzi:Isendlalelo esingaphezulu sithintana ngqo nokubunjwa futhi kufanele siqinisekise ukuqedwa okubushelelezi kwendawo (ukugwema ukuba mahhlohlo nokubhoboza) kuyilapho futhi simelana nomthelela wokuqala wensimbi encibilikisiwe.
2. Igobolondo Elingemuva (Linikeza Amandla Aphelele Nokuphefumula)
Umsebenzi:Igobolondo elingemuva liyisakhiwo esinezingqimba eziningi ngaphandle kongqimba olungaphezulu. Isekela amandla onke egobolondo lesikhunta (ukuvimbela ukuguquguquka noma ukuwa ngesikhathi sokuthululwa) ngenkathi iqinisekisa ukuphefumula (ukukhulula amagesi emgodini nokuvimbela i-porosity ekubunjweni).
3. Izicelo Ezikhethekile Zokusakaza Okufunwa Kakhulu
I-high-temperature alloy castings:njengama-turbine blades enjini yendiza (amazinga okushisa okuthela angu-1500-1600°C), adinga igobolondo lesikhunta ukuthi limelane namazinga okushisa aphakeme. Ukungaguquguquki okuphezulu kwesihlabathi se-Mullite kungathatha indawo yesihlabathi se-zircon ebiza kakhulu (indawo yokuncibilika engu-2550°C, kodwa ebizayo), ukuhlangabezana nezidingo zokumelana nezinga lokushisa eliphezulu kuyilapho kunciphisa izindleko.
Ngokusakazwa kwensimbi okusebenzayo:njengama-alloys e-aluminium kanye nama-magnesium alloys (okusebenza kakhulu futhi asabela kalula nge-SiO₂ esihlabathini se-quartz ukuze enze ama-inclusions), ukuqina kwamakhemikhali esihlabathi se-mullite kunganciphisa ukuphinda kusebenze futhi kuvimbele ukwakheka "kokufakwa kwe-oxidation" ekubunjweni.
Ukuze uthole ukulingisa okunembayo okukhulu:njengezindlu zebhokisi le-wind turbine gearbox (ezingaba nesisindo samathani ambalwa), igobolondo lesikhunta lidinga amandla aphezulu esakhiwo. Isendlalelo esisekelayo esakhiwe isihlabathi se-mullite kanye ne-binder sinamandla amakhulu, sinciphisa ingozi yokwanda nokuwa kwesikhunta.
4. Inhlanganisela Nezinye Izisetshenziswa Eziphikisayo
Ekukhiqizeni kwangempela, isihlabathi se-mullite sivame ukusetshenziswa ngokuhlanganiswa nezinye izinto zokuthuthukisa ukusebenza kwegobolondo lesikhunta:
Inhlanganisela nesihlabathi se-zircon:Isihlabathi se-zircon sisetshenziswa njengongqimba olungaphezulu (ukuqinisekisa ukuqeda okuphezulu kwendawo) kanye nesihlabathi se-mullite njengesendlalelo esisekelayo (ukunciphisa izindleko). Lokhu kulungele ukulingisa okunezidingo eziphezulu kakhulu, njengezingxenye ze-aerospace.
Kuhlanganiswe nesihlabathi se-quartz:Ngokusakazwa ngezidingo zokushisa eziphansi (okufana nengxubevange yethusi, indawo encibilikayo engu-1083℃), ingashintsha ingxenye yesihlabathi sequartz futhi isebenzise ukunwetshwa okuphansi kwesihlabathi se-mullite ukunciphisa ukuqhekeka kwamagobolondo.
| Inqubo Yereferensi Yokwenza Ngokunemba Kokusakaza Igobolondo | ||
| I-surface slurry evamile, i-zirconium powder | 325 mesh+silica sol | Isihlabathi: i-zirconium sand 120 mesh |
| I-slurry yesendlalelo sangemuva | 325 mesh+silica sol+mullite powder 200 mesh | Isihlabathi: isihlabathi se-mullite 30-60 mesh |
| Isendlalelo sokuqinisa | I-Mullite powder 200 mesh+silica sol | Isihlabathi: isihlabathi se-mullite 16-30 mesh |
| Ukuvala i-slurry | I-Mullite powder 200 mesh+silica sol | _ |
Iphrofayela Yenkampani
Inkampani Shandong Robert New Material Co., Ltd.itholakala eZibo City, eSifundazweni saseShandong, eChina, okuyindawo yokukhiqiza impahla ephikisayo. Siyinkampani yesimanje ehlanganisa ucwaningo nentuthuko, ukukhiqiza, ukuthengisa, ukwakhiwa kweziko nokwakha, ubuchwepheshe, kanye nezinto ezikhiqizayo zokuthumela ngaphandle. Sinemishini ephelele, ubuchwepheshe obuphambili, amandla obuchwepheshe aqinile, ikhwalithi yomkhiqizo omuhle kakhulu, kanye nedumela elihle. Ifektri yethu ihlanganisa amahektha angaphezu kuka-200 futhi umphumela wonyaka wezinto eziphikisayo ezinokwakheka cishe amathani angu-30000 futhi izinto eziphikisayo ezingabunjiwe zingamathani ayi-12000.
Imikhiqizo yethu eyinhloko yezinto eziphikisayo ihlanganisa: izinto ze-alkaline refractory; aluminium silicon refractory izinto; izinto eziphikisayo ezingakhiwe; ukufakwa kwe-thermal refractory materials; izinto ezikhethekile zokuphikisa; izinto ezisebenzayo eziphikisayo zamasistimu okusakaza aqhubekayo.
imibuzo ejwayelekile ukubuzwa
Udinga usizo? Qiniseka ukuthi uvakashela izinkundla zethu zokusekela ukuze uthole izimpendulo zemibuzo yakho!
Singumkhiqizi wangempela, imboni yethu ikhethekile ekukhiqizeni izinto eziphikisayo iminyaka engaphezu kwengu-30. Sithembisa ukuhlinzeka ngenani elingcono kakhulu, insizakalo engcono kakhulu yokuthengisa ngaphambilini kanye neyokuthengisa ngemva kokuthengisa.
Ngenqubo ngayinye yokukhiqiza, i-RBT inohlelo oluphelele lwe-QC lokwakheka kwamakhemikhali nezinto ezibonakalayo. Futhi sizohlola izimpahla, futhi isitifiketi sekhwalithi sizothunyelwa nezimpahla. Uma unezidingo ezikhethekile, sizozama konke okusemandleni ethu ukuze sizifake.
Ngokuya ngobuningi, isikhathi sethu sokulethwa sihlukile. Kodwa sithembisa ukuthumela ngokushesha ngangokunokwenzeka ngekhwalithi eqinisekisiwe.
Yebo, sinikeza amasampula mahhala.
Yebo, kunjalo, wamukelekile ukuvakashela inkampani ye-RBT kanye nemikhiqizo yethu.
Akukho mkhawulo, singakunikeza isiphakamiso esingcono kakhulu nesixazululo ngokuya ngesimo sakho.
Sesineminyaka engaphezu kwengu-30 senza izinto eziphikisayo, sinokusekela okuqinile kwezobuchwepheshe kanye nesipiliyoni esicebile, singasiza amakhasimende akhe amahhanisi ahlukene futhi anikeze isevisi yokuma okukodwa.
