I-Sintered Mullite kanye Ne-Fused Mullite Isetshenziselwa Ngokuyinhloko Ukukhiqiza Ama-Refractories kanye Nokusatshalaliswa Kwensimbi Ne-Titanium Alloys.

I-Sintered Mullite corundum chamotte
Mullite
I-Sintered Mullite70

Incazelo emfushane

I-Sintered Mullite ikhethwa i-bauxite yekhwalithi ephezulu yemvelo, ngokusebenzisa i-homogenization yamazinga amaningi, ebalwa ngaphezu kuka-1750 ℃. Ibonakala ngokuminyana kwenqwaba, ukuzinza kwekhwalithi ezinzile ukumelana nokushaqeka okushisayo, inkomba ephansi yokushisa okuphezulu nokusebenza kahle kokumelana nokugqwala kwamakhemikhali nokunye.

Ingavamile kakhulu ngesimo sayo semvelo, i-mullite ikhiqizwa ngokwenziwa embonini ngokuncibilika noma ngokudubula ama-alumino-silicate ahlukahlukene. Izici ezivelele ze-thermo-mechanical nokuzinza kwe-mullite yokwenziwa ewumphumela kuyenza ibe yingxenye eyinhloko ezinhlelweni eziningi zokuphikisa kanye ne-Foundry.

XHUMANA MANJE

Ukwakheka kwamakhemikhali

Izinto	Amakhemikhali ukwakheka (ingxenyana yobuningi)/%				Ukuminyana kwenqwaba g/cm³	I-porosity ebonakalayo %	I-Refractoriness ℃	3Al2O3.2SiO2 Isigaba (Ingxenyana Yobuningi)/%
Izinto	I-Al₂O₃	I-TiO₂	Fe₂O₃	Na₂O+K₂O
SM75	73-77	≤0.5	≤0.5	≤0.2	≥2.90	≤3	180	≥90
I-SM70-1	69-73	≤0.5	≤0.5	≤0.2	≥2.85	≤3	180	≥90
I-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: izinga 1
Amasampuli: SM70-1, Sintered Mullite, Al₂O₃:70%; Umkhiqizo weBanga loku-1

Nakuba i-mullite ikhona njengeminerali yemvelo, ukwenzeka emvelweni kuyivelakancane kakhulu.

Imboni incike kuma-mullite okwenziwa atholakala ngokuncibilika noma 'ngokubala' ama-alumino-silicate ahlukahlukene njenge-kaolin, ubumba, okungavamile ukuba ne-alusite noma i-silica ecolekileyo kanye ne-alumina kuya kumazinga okushisa aphezulu.

Omunye wemithombo yemvelo engcono kakhulu ye-mullite yi-kaolin (njengobumba lwe-kaolinic). Ilungele ukukhiqizwa kwama-refractories afana nezitini ezishisiwe noma ezingashiswanga, ama-castable kanye nezingxube zepulasitiki.

I-mullite ehlanganisiwe ne-fused mullite isetshenziselwa ngokuyinhloko ukukhiqizwa kwama-refractories kanye nokusakazwa kwensimbi ne-titanium alloys.

Izici ezingokomzimba

• Ukumelana kahle nokukhasa
• Ukwanda okushisayo okuphansi
• I-conductivity ephansi ye-thermal
• Ukuzinza okuhle kwamakhemikhali
• Ukuzinza okuhle kakhulu kwe-thermo-mechanical
• Ukumelana nokushaqeka okuhle kakhulu okushisayo
• I-porosity ephansi
• Ilula uma iqhathaniswa
• Ukumelana ne-oxidation