- 15
- Sep
Isitini seZirconium Mullite
Isitini seZirconium Mullite
Izinzuzo zomkhiqizo: ukuminyana okukhulu kwenqwaba, ivolumu enkulu, amandla aphezulu emishini ekamelweni lokushisa nasezingeni eliphakeme lokushisa, ukusimama okuhle kokushisa okushisayo, ukuncipha kokushisa okuphansi kanye nokushisa okuphezulu, nokuzinza okuhle kwamakhemikhali nokumelana nemidiya ye-alkaline.
Supply inzuzo: othomathikhi ngokugcwele ukukhiqizwa refractory umugqa, ukulethwa lonke
Isicelo somkhiqizo: Isetshenziswa kakhulu ezingxenyeni ezisemqoka zezikhuni ezinjengama-glass kilns, ama-glass fiber kilns, ama-rock wool fiber kilns, izikhuni zokushiswa kukadoti, i-ceramic frit glaze kilns, amaziko kagesi, njll.
incazelo yomkhiqizo
Izitini ze-Zirconium mullite zithuthukisa ukwakheka kwe-mullite ngokwethula i-ZrO2 kuzitini ze-A12O3-SiO2, ezingathuthukisa ukumelana kwamakhemikhali, ukumelana nokushaqeka okushisayo futhi kunciphise ukwanela kokunwetshwa kwe-mullite. Ngokuvamile kwenziwa nge-electrofusion. Iphinde ikhiqizwe ngendlela yokuqhafaza.
Isitini se-Zirconium mullite siyinto ekhethekile yokwenziwa okwenziwe ngokusebenzisa i-alumina yezimboni kanye ne-zircon ukugxila njengezinto zokusetshenziswa nokwethula i-zirconia ku-mullite matrix ngenqubo yokuphamba okusebenzayo.
Izitini ze-Zirconium mullite zethula i-zirconia kwizitini ze-mullite, kanti ukushintsha kwesigaba kokuqina kwe-zirconia kungathuthukisa kakhulu izakhiwo zemishini yokushisa ephezulu. Zirconia ikhuthaza sintering izinto mullite. Ukwengezwa kwe-ZrO2 kungasheshisa inqubo yokuxinana nokuthinta izinto ze-ZTM ngenxa yokwenziwa kwezinto eziphansi zokuncibilika nokwakhiwa kwezikhala. Lapho ingxenyenamba yesitina se-zirconium mullite ingama-30%, ubukhulu besihloko somzimba oluhlaza obudutshulwe ngo-1530 ° C sifinyelela kuma-98%, amandla afinyelela ku-378MPa, bese ubunzima bufinyelela ku-4.3MPa · m1 / 2.
Izitini ze-Zirconium mullite zenziwa nge-alumina yezimboni kanye ne-zircon ngokwenza i-reaction sintering. Ngoba ukusabela nokuthinteka kwenziwa ngasikhathi sinye, inqubo yokulawula inzima. Ngokuvamile, izitini ze-zirconium mullite zishiswa ngo-1450 ° C ukuzenza ziqine ngesikhathi sokudubula, bese zishiswa ziye ku-1600 ° C ukuze zisabele. I-ZrSiO4 ibola ibe yi-ZrO2 ne-SiO2 ezingeni lokushisa elingaphezu kuka-1535 ° C, kanti i-SiO2 ne-Al2O3 zisabela ekwakheni i-mullite Stone, ngoba ingxenye yesigaba samanzi ivela ngesikhathi sokubola kweZrSiO4, futhi ukubola kweZrSiO4 kungacwenga izinhlayiya, kukhuphuke indawo ethile yendawo, futhi uphromothe ubumanzi.
Izinkomba zomzimba nezamakhemikhali
| project | Isitini sokulwa nokuhlubula i-zircon | Izitini zircon ezisezingeni eliphakeme | Isitini esijwayelekile se-zircon | Isitini seZirconia Corundum | Isitini seZirconium Mullite | Isitini se-zirconium | |
| I-ZrO2% | ≥65 | ≥65 | ≥63 | ≥31 | ≥20 | 15-20 | |
| I-SiO2% | ≤33 | ≤33 | ≤34 | ≤21 | – | ≤20 | |
| I-Al2O3% | – | – | – | ≥46 | ≥60 | 50-60 | |
| I-Fe2O3% | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.5 | ≤0.5 | ≤1.0 | |
| I-porosity ebonakalayo% | ≤16 | ≤18 | ≤22 | ≤18 | ≤18 | ≤20 | |
| Ubuningi besisindo g / cm3 | 3.84 | 3.7 | 3.65 | 3.2 | 3.2 | ≥2.7 | |
| Amandla acindezelayo ekamelweni lokushisa Mpa | ≥130 | ≥100 | ≥90 | ≥110 | ≥150 | ≥100 | |
| Izinga lokuvuselela ushintsho% alikho ngaphezu (1600 ℃ × 8h) | ± 0.2 | ± 0.3 | ± 0.3 | ± 0.3 | ± 0.3 | ± 0.3 | |
| Layisha ukuqala kokushisa okuthambile ℃ (0.2MPa, 0.6%) | ≥1700 | ||||||