IZirconium Mullite Brick

Izibonelelo zeMveliso: uxinano oluphezulu, umthamo omkhulu, amandla oomatshini aphezulu kwiqondo lobushushu kwigumbi kunye neqondo lobushushu eliphezulu, uzinzo olomeleleyo lokukhwankqiswa kobushushu, ukuzithoba kokuphinda ubushushu kunye nokunyuka kweqondo lobushushu, kunye nozinzo lweekhemikhali kunye nokuchasana nemithombo yeendaba ene-alkaline.

Supply uncedo: oluzenzekelayo ngokupheleleyo umgca wemveliso eliyinjubaqa, ukunikezelwa lonke

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Ingcaciso yeMveliso

I-Zirconium mullite izitena ziphucula ubume be mullite ngokwazisa i-ZrO2 kwizitena ze-A12O3-SiO2, ezinokuphucula ukuxhathisa kweekhemikhali, ukuxhathisa kukothuka kwaye kunciphise ukungalingani kokwandiswa kwe-mullite. Ngokuqhelekileyo kwenziwa nge-electrofusion. Ikwaveliswa yindlela yokuntywila.

Isitena se-Zirconium mullite yinto ekhethekileyo yokwenziwa kwezinto ezenziwe ngokusebenzisa i-alumina yoshishino kunye ne-zircon concentrate njengezinto ezingafunekiyo kunye nokwazisa i-zirconia kwi-mullite matrix ngenkqubo yokuntywila.

I-Zirconium mullite izitena zingenisa i-zirconia kwizitena ze-mullite, kwaye utshintsho kwisigaba sokuqinisa i-zirconia lunokuphucula kakhulu iipropathi ezinobushushu obuphezulu bezinto ze-mullite. Zirconia ikhuthaza sintering izinto mullite. Ukongezwa kweZrO2 kunokukhawulezisa uxinaniso kunye nenkqubo yokuntywila kwezixhobo zeZTM ngenxa yokuveliswa kwezinto ezinendawo yokunyibilika ephantsi kunye nokwenziwa kwezithuba. Xa iqhezu lobunzima bezitena ze-zirconium mullite zingama-30%, ubungakanani bomzimba oluhlaza obudutyulwe ngo-1530 ° C bufikelela kuma-98%, amandla afikelela kuma-378MPa, kwaye ubunzima bufikelela kwi-4.3MPa · m1 / 2.

Izitoni ze-Zirconium mullite zenziwe nge-alumina kunye ne-zircon zokwenza i-reaction sintering. Ngenxa yokusabela kunye sintering lwenziwa ngaxeshanye, inkqubo yolawulo kunzima. Ngokubanzi, i-zirconium mullite izitena zitshiswa ngo-1450 ° C ukuzenza zixinaniswe ngexesha lokudubula, emva koko zitshise ziye kwi-1600 ° C yokuphendula. I-ZrSiO4 ibola ibe yi-ZrO2 kunye ne-SiO2 kubushushu obungaphezulu kwe-1535 ° C, kunye ne-SiO2 kunye ne-Al2O3 zisabela kwindlela yokwenza ilitye le-mullite, kuba inxenye yesigaba se-liquid ibonakala ngexesha lokubola kwe-ZrSiO4, kwaye ukubola kwe-ZrSiO4 kunokucokisa amasuntswana, kwandise indawo engaphezulu ethile, kunye nokukhuthaza ukuntywila.

Iimpawu zomzimba kunye neekhemikhali

iprojekthi	Ukuqhawula isitena se-zircon		Umgangatho ophezulu wezitena zircon	Isitena esiqhelekileyo se-zircon	IZirconia Corundum Brick	IZirconium Mullite Brick	Isitena se-zirconium isitena
ZrO2%	≥65		≥65	≥63	≥31	≥20	15-20
SiO2%	≤33		≤33	≤34	≤21	–	≤20
Al2O3%	–		–	–	≥46	≥60	50-60
Fe2O3%	≤0.3		≤0.3	≤0.3	≤0.5	≤0.5	≤1.0
I-porosity ebonakalayo		≤16	≤18	≤22	≤18	≤18	≤20
Ubuninzi bobunzima g / cm3		3.84	3.7	3.65	3.2	3.2	≥2.7
Ukucinezelwa kwamandla kubushushu begumbi MPA		≥130	≥100	≥90	≥110	≥150	≥100
Izinga lokuphinda usebenze utshintsho% alikho ngaphezulu kwe (1600 ℃ × 8h)		± 0.2	± 0.3	± 0.3	± 0.3	± 0.3	± 0.3
Ukulayisha ukuqala kobushushu sof (0.2MPa, 0.6%)		≥1700