Sintered Mullite le Fused Mullite li sebelisoa haholo molemong oa tlhahiso ea li-refractories le ho akheloa ha tšepe le li-alloys tsa titanium.

Sintered Mullite corundum chamotte
Mullite
Sintered Mullite70

Tlhaloso e Khutšoane

Sintered Mullite e khethiloe bauxite ea boleng bo holimo ea tlhaho, ka homogenization ea maemo a mangata, e calcined ho feta 1750 ℃. E khetholloa ka bongata bo bongata bo bongata, botsitso bo tsitsitseng ba boleng ba mocheso oa mocheso, index e tlaase ea mocheso o phahameng oa mocheso le ts'ebetso e ntle ea lik'hemik'hale tsa corrosion, joalo-joalo.

Ha e le ntho e sa tloaelehang haholo ka sebopeho sa eona sa tlhaho, mullite e hlahisoa ka maiketsetso bakeng sa indasteri ka ho qhibiliha kapa ho thunya li-alumino-silicate tse fapaneng. Mehaho e ikhethang ea thermo-mechanical le botsitso ba mullite ea maiketsetso e hlahisoang e e etsa karolo ea bohlokoa lits'ebetsong tse ngata tsa refractory le foundry.

TS'ELISO HONA

Sebopeho sa lik'hemik'hale

Lintho	Lik'hemik'hale sebopeho (karolo ya boima)/%				Boima ba bongata g/cm³	Ho bonahala porosity%	Refractoriness ℃	3Al2O3.2SiO2 Phase (Karolo ea Boima)/%
Lintho	Al₂O₃	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
SM60-1	57-62	≤0.5	≤0.5	≤0.5	≥2.65	≤5	180	≥80
SM60-2	57-62	≤3.0	≤1.5	≤1.5	≥2.65	≤5	180	≥75

S-Sintered; M-Mullite; -1: boemo ba 1
Mehlala: SM70-1, Sintered Mullite, Al₂O₃: 70%; Sehlahisoa sa Sehlopha sa 1

Le hoja mullite e le teng e le liminerale tsa tlhaho, liketsahalo tsa tlhaho li teng ka seoelo haholo.

Indasteri e itšetlehile ka li-mullite tsa maiketsetso tse fihletsoeng ka ho qhibiliha kapa ho 'calcining' li-alumino-silicate tse fapaneng tse kang kaolin, letsopa, ka seoelo andalusite kapa silika e ntle le alumina ho mocheso o phahameng.

E 'ngoe ea mehloli e metle ea tlhaho ea mullite ke kaolin (joalo ka letsopa la kaolinic). E loketse bakeng sa tlhahiso ea li-refractories tse kang litene tse chesitsoeng kapa tse se nang mollo, li-castable le metsoako ea polasetiki.

Sintered mullite le fused mullite li sebelisoa haholo-holo bakeng sa tlhahiso ea li-refractories le ho lahla ha tšepe le li-alloys tsa titanium.

Lintho tsa 'mele

• Khanyetso e ntle ea creep
• Katoloso e tlase ea mocheso
• Low mogote conductivity
• Botsitso bo botle ba lik'hemik'hale
• Botsitso bo botle ba thermo-mechanical
• Ho hanyetsa mocheso o babatsehang oa mocheso
• Porosity e tlaase
• E bobebe ha ho bapisoa
• Ho hanyetsa oxidation