I-Sintered Mullite kunye ne-Fused Mullite zisetyenziselwa ikakhulu ukwenziwa kweeRefractories kunye nokuphoswa kwentsimbi kunye ne-Titanium alloys.

I-Sintered Mullite corundum chamotte
Mullite
Sintered Mullite70

Ingcaciso emfutshane

I-Sintered Mullite ikhethwa i-bauxite yendalo ekumgangatho ophezulu, ngokusebenzisa i-homogenization yamanqanaba amaninzi, ikhalcined ngaphezulu kwe-1750℃. Iphawulwa ngobuninzi bobuninzi, uzinzo oluzinzileyo lomgangatho wokuxhathisa ukothuka kwe-thermal, isalathiso esisezantsi sokunyuka kobushushu obuphezulu kunye nokusebenza kakuhle kokumelana nemichiza kunye nokunye.

Inqabile kakhulu kwimo yayo yendalo, i-mullite iveliselwa ushishino ngokunyibilika okanye ngokudubula ii-alumino-silicates ezahlukeneyo. Iimpawu ezibalaseleyo ze-thermo-mechanical kunye nokuzinza kwe-synthetic mullite ebangela ukuba ibe yinto ephambili kwizicelo ezininzi ze-refractory kunye ne-Foundry.

QHAGAMSHELANA NGOKU

Ukwakhiwa kweekhemikhali

Izinto	Ikhemikhali ukwakheka (iqhezu lobunzima)/%				Uxinaniso oluninzi g/cm³	I-porosity ebonakalayo %	Ukuchasa ℃	3Al2O3.2SiO2 Isigaba (iqhezu lobunzima)/%
Izinto	Al₂O₃	I-TiO₂	Fe₂O₃	Na₂O+K₂O
SM75	73-77	≤0.5	≤0.5	≤0.2	≥2.90	≤3	180	≥90
SM70-1	69-73	≤0.5	≤0.5	≤0.2	≥2.85	≤3	180	≥90
SM70-2	67-72	≤3.5	≤1.5	≤0.4	≥2.75	≤5	180	≥85
I-SM60-1	57~62	≤0.5	≤0.5	≤0.5	≥2.65	≤5	180	≥80
I-SM60-2	57~62	≤3.0	≤1.5	≤1.5	≥2.65	≤5	180	≥75

S-Sintered; M-Mullite; -1: inqanaba loku-1
Iisampuli: SM70-1, Sintered Mullite, Al₂O₃: 70%; Imveliso yeBanga loku-1

Nangona i-mullite ikhona njengeminerali yendalo, izehlo kwindalo zinqabile kakhulu.

Ishishini lixhomekeke kwiimullites ezenziweyo eziphunyezwa ngokunyibilika okanye 'ukwenza i-calcining' ezahlukeneyo zealumini-silicates ezifana ne-kaolin, udongwe, kunqabile ukuba ibe ne-andalusite okanye i-silica ecolekileyo kunye ne-alumina kumaqondo obushushu aphezulu.

Omnye wemithombo yendalo ye-mullite yi-kaolin (njengodongwe lwe-kaolinic). Kukulungele ukuveliswa kwee-refractories ezifana nezitena ezitshisiweyo okanye ezingatshitshiswanga, i-castables kunye neengxube zeplastiki.

I-mullite edibeneyo kunye ne-mullite edibeneyo isetyenziselwa ukuveliswa kwee-refractories kunye nokuphosa kwentsimbi kunye ne-titanium alloys.

Iimpawu ezibonakalayo

• Ukumelana kakuhle nokurhubuluza
• Ukwandiswa kwe-thermal ephantsi
• Ukuhanjiswa kwe-thermal ephantsi
• Uzinzo oluhle lweekhemikhali
• Uzinzo olugqwesileyo lwe-thermo-mechanical
• Ukuxhathisa ukothuka kwe-thermal
• I-porosity ephantsi
• Ngokuthelekisa ubunzima
• Ukumelana ne-oxidation