Sintered Mullite da Fused Mullite Ana Amfani Da Farko Don Samar da Refractories da Simintin Karfe da Alloys na Titanium.

Sintered Mullite corundum chamotte
Mulite
Sintered Mulite70

Takaitaccen Bayani

Sintered Mullite an zaɓi babban ingancin bauxite na halitta, ta hanyar homogenization mai girma da yawa, wanda aka ƙididdige shi sama da 1750 ℃. Yana da halin high girma yawa, barga ingancin kwanciyar hankali thermal girgiza juriya, low index na high zafin jiki creep da kyau sinadaran lalata juriya yi da sauransu.

Ba kasafai ba a cikin sigar sa ta halitta, ana samar da mullite ta hanyar wucin gadi don masana'antu ta hanyar narkewa ko harbin alumino-silicates daban-daban. Fitattun kaddarorin thermo-inkanikanci da kwanciyar hankali na abin da ya haifar da mullite na roba sun sa ya zama mahimmin sashi a yawancin aikace-aikacen da ba su da tushe da tushe.

TUNTUBE YANZU

Abubuwan sinadaran

Abubuwa	Chemical abun da ke ciki (Kashi mai yawa)/%				Girman girma g/cm³	Bayyanar porosity%	Refractoriness ℃	3Al2O3.2SiO2 Matakin (Masu yawan juzu'i)/%
Abubuwa	Al₂O₃	TiO₂	Fe₂O₃	Na₂O+K₂O
SM75	73-77	≤0.5	≤0.5	≤0.2	≥2.90	≤3	180	≥90
Saukewa: SM70-1	69-73	≤0.5	≤0.5	≤0.2	≥2.85	≤3	180	≥90
Saukewa: SM70-2	67-72	≤3.5	≤1.5	≤0.4	≥2.75	≤5	180	≥85
Saukewa: SM60-1	57-62	≤0.5	≤0.5	≤0.5	≥2.65	≤5	180	≥80
Saukewa: SM60-2	57-62	≤3.0	≤1.5	≤1.5	≥2.65	≤5	180	≥75

S-Sintered; M-Mullite; -1: Darasi na 1
Misalai: SM70-1, Sintered Mullite, Al₂O₃:70%; Samfuran daraja 1

Kodayake mullite yana wanzuwa azaman ma'adinai na halitta, abubuwan da ke faruwa a yanayi ba su da yawa.

Masana'antar ta dogara da mullites na roba waɗanda ake samu ta hanyar narkewa ko 'calcining' nau'ikan alumino-silicates iri-iri kamar kaolin, yumbu, da wuya andalusite ko silica mai kyau da alumina zuwa yanayin zafi mai girma.

Ɗaya daga cikin mafi kyawun tushen asalin halitta shine kaolin (kamar kaolinic clays). Yana da kyau don samar da refractories irin su tubalin wuta ko maras wuta, simintin gyaran kafa da haɗin filastik.

Sintered mullite da fused mullite ana amfani da farko don samar da refractories da simintin karfe da titanium gami.

Kaddarorin jiki

• Kyakkyawan juriya mai rarrafe
• Low thermal fadadawa
• Low thermal watsin
• Kyakkyawan kwanciyar hankali na sinadarai
• Kyakkyawan kwanciyar hankali na injina
• Kyakkyawan juriya na girgiza zafin zafi
• Low porosity
• Kwatankwacin nauyi mai nauyi
• Juriya na Oxidation