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Isitini sehange

Isitini sehange

Izinzuzo zomkhiqizo: amandla aphezulu, ukumelana okuhle kokuguguleka, ukumelana okuphezulu kokuxebuka.

Isicelo somkhiqizo: Idlala indima yokuxhunywa kwamathambo ekuthululweni kwama-castable.

incazelo yomkhiqizo

Izitini zehange zibizwa nangokuthi izitini ezilenga. Zenziwe ngezinto zokusetshenziswa, zicindezelwe-zenziwe noma zathelwa, zabe seziphekwa ngamazinga okushisa aphezulu. Okuqukethwe kwe-alumina kwezitini zehange kungaphezu kwama-55%, futhi okuqukethwe kwe-alumina kwezitini zehange kungafinyelela kuma-75%. Ukushisa okuthambisa umthwalo kwalolu hlobo lomzimba wezitini kufinyelela ku-1550 ℃, okuwumkhiqizo omuhle kakhulu wezitini ophikisayo. Kodwa-ke, ngokujwayelekile, okuqukethwe kwe-alumina okungama-55% kukhethiwe ngoba izitini zehange ezinokuqukethwe okungama-55% ziyaguquguquka. Izitini zehange zibamba iqhaza elibalulekile ekwakhiweni kwezindonga ezibheke ngqo, ezingathuthukisa ubuqotho bezindonga ezibheke ngqo.

Ngaphezu kwalokho, kufanele kuqashelwe ukuthi izitini okusetshenzwa kulengwa kuzo zisetshenziselwa ukuqinisa izikhonkwane eziphikisayo. Izici zezitini okusetshenzwa kulengwa kuzo kufanele zihambisane nezinto ezilahlekayo, futhi ukunwetshwa nokuncipha kufanele kuhambisane, ukuze kwakheke inhlanganisela esondelene ne-castable nokwelula impilo yomugqa wesithando somlilo. Isitini sehange luhlobo olusha lwesitina sehange esisetshenziswa ezithandweni zezimboni, ikakhulukazi, sihlobene nesitini sehange esisetshenziswa ophahleni lwesithando sezimboni. I-groove inikezwa ngezimbambo eziqondiswa ubude endaweni okungenani eyodwa yomzimba wehange. Ngemuva kokuthi izimbambo zifakiwe, ngenxa yokuqinisa nokudonsa isenzo sezimbambo, ukuqina nokuqina okuguqukayo kwehange okuqinile kuthuthuke kakhulu, futhi ingcindezi eyakhiwe emgodini Ovinjelwe ezimbanjeni ayikwazi ukuqhubeka nokudlula, ngakho-ke ihange izitini zalolu hlobo lwesakhiwo akulula ukugqashuka.

Ukuhlelwa nokwakhiwa kwezitini zehange ngesikhathi sokusebenzisa kufanele kulandele le migomo elandelayo:

1. Ukuhlelwa kwezitini ezibambelela kufanele kunqunywe ngokuya ngobubanzi nobuningi bezinguquko zokushisa nosayizi wendawo eqondile yodonga, imvamisa engekho ngaphansi kwamabhulokhi ayi-6 / m2.

2. Hlola izitini zehange ngokucophelela ngaphambi kokwakha. Uma izitini zehange zinemifantu emigodini yehange ethinta amandla jikelele ezitini zehange, akufanele zisetshenziswe futhi kufanele zilahlwe ngokuqinile.

3. Lapho ukwakhiwa kwamatshe kuseduze nendawo okuma kuyo izitini, izitini kufanele zihlelwe kusengaphambili ukuthola ukuthi iziphi izitini ezibambelela kuzo. Ingxenye yokushisela yegobolondo lensimbi ihlanzwa ngebhulashi locingo. Induku yokushisela isetshenziselwa izingxenye zokushisela, futhi i-welding iqinile. Ncamathisela ishubhu.

4. Emva kokuba izitini zokubopha amahhashi zakhiwe, faka ingwegwe yokubopha, bese ugcwalisa i-airstrike nge-fiber ekhombayo ezwakalayo bese uyixhuma ngokuqinile ukuze wakhe izinga elithile lokuvikela amahange.

Izinkomba zomzimba nezamakhemikhali

Isikhundla / Inkomba Izitini eziphakeme ze-alumina Izitini eziphakeme ze-alumina eziphakeme Izitini eziphakeme ezintathu ze-alumina Isitini esiphakeme se-alumina
I-LZ-75 I-LZ-65 I-LZ-55 I-LZ-80
AL203 ≧ 75 65 55 80
I-Fe203% 2.5 2.5 2.6 2.0
Ubuningi besisindo g / cm2 2.5 2.4 2.2 2.7
Amandla acindezelayo ekamelweni lokushisa MPa> 70 60 50 80
Layisha ukushisa okuthambile ° C 1520 1480 1420 1530
Ukuphindisela emuva ° C> 1790 1770 1770 1790
I-porosity ebonakalayo% 24 24 26 22
Ukushisa izinga lokushintshwa komugqa unomphela% -0.3 -0.4 -0.4 -0.2