kristal dị ka agịga dị ka kristal nke na-enye ebe mgbaze dị elu, Mgbasa ọkụ dị ala na-agbanwe agbanwe yana nguzogide dị mma maka ujo ọkụ maka Fused Mullite.

Corundum mullite
Mullite agwakọta dị elu dị ọcha
Electro-fused mullite

Nkọwa dị mkpirikpi

A na-emepụta Fused Mullite site na usoro alumina nke Bayer na ájá quartz dị ọcha ka ọ na-ejikọta ya na nnukwu ọkụ ọkụ eletrik.

Ọ nwere nnukwu ọdịnaya nke kristal mullite dị ka agịga nke na-enye ebe mgbaze dị elu, mgbasawanye ọkụ na-agbanwe agbanwe na oke iguzogide ujo ọkụ, nrụrụ n'okpuru ibu, na corrosion kemịkalụ na oke okpomọkụ.

Kpọtụrụ ugbu a

Ngwakọta Mulite 75

Ihe		Nkeji	Index	Ụdị
Ngwakọta kemịkalụ	Al₂O₃	%	73.00-77.00	73.90
	SiO₂	%	22.00-29.00	24.06
	Fe₂O₃	%	0.4 max (Ntara 0.5% kacha)	0.19
	K2O+Na₂O	%	0.40 kacha	0.16
	CaO+MgO	%	0.1% kacha	0.05
Refractoriness		℃	1850 min
Nnukwu njupụta		g/cm³	2.90 nkeji	3.1
Ọdịnaya nke iko iko		%	10 max
3 Al₂O₃.2SiO₂Usoro		%	Nkeji 90

F-Fused; M-Mulite

Ngwakọta Mulite 70

Ihe		Nkeji	Index	Ụdị
Ngwakọta kemịkalụ	Al₂O₃	%	69.00-73.00	70.33
	SiO₂	%	26.00-32.00	27.45
	Fe₂O₃	%	0.6 max (Ntara 0.7% kacha)	0.23
	K2O+Na₂O	%	0.50 kacha	0.28
	CaO+MgO	%	0.2% kacha	0.09
Refractoriness		℃	1850 min
Nnukwu njupụta		g/cm³	2.90 nkeji	3.08
Ọdịnaya nke iko iko		%	15 max
3 Al₂O₃.2SiO₂Usoro		%	Nkeji 85

Usoro Mmepụta

A na-emepụta Fused Mullite site na usoro alumina nke Bayer na ájá quartz dị ọcha ka ọ na-ejikọta ya na nnukwu ọkụ ọkụ eletrik.

Ngwa

A na-eji ya eme ihe n'ọtụtụ ebe dị ka akụrụngwa maka ọkwa refractories dị elu, dị ka brik na-ekpuchi n'ime ọkụ ọkụ iko na brik a na-eji ọkụ ọkụ na-ekpo ọkụ na ụlọ ọrụ ígwè.

A na-ejikwa ya na ceramic kiln na petrochemical na ọtụtụ ngwa ndị ọzọ.

A na-eji mma Mullite fused na mkpuchi Foundry maka nguzogide ujo ya na ihe ndị na-enweghị wetability.

Atụmatụ

• Nkwụsi ike dị elu nke okpomọkụ
• Mgbasa ọkụ na-agbanwe agbanwe dị ala
• Nguzogide ọgụ slag na oke okpomọkụ
• Ngwakọta kemịkalụ kwụsiri ike

Mullite, nke ọ bụla n'ime ụdị ịnweta enweghị ụkọ nke nwere aluminom silicate (3Al2O3 · 2SiO2). A na-eme ya n'elu ọkụ aluminosilicate akụrụngwa na bụ ihe kacha mkpa mejupụtara seramiiki whiteware, poselin, na elu okpomọkụ mkpuchi na refractory ihe. Ihe mejupụtara, dị ka mullite, inwe oke alumina-silica nke opekata mpe 3:2 agaghị agbaze n'okpuru 1,810°C (3,290°F), ebe ndị nwere oke dị ala na-agbaze n'ime obere okpomọkụ dị ka 1,545°C (2,813°F). F).

Achọpụtara mulite eke dị ka kristal na-acha ọcha, elongated na Island of Mull, Inner Hebrides, Scot. Achọpụtara ya naanị n'ime ogige argillaceous (cyey) fused na nkume na-asọ oyi, ọnọdụ na-egosi oke okpomọkụ nke nhazi.

E wezụga mkpa ọ dị maka ceramics nke oge ochie, mullite aghọwo nhọrọ nke ihe maka seramiki nhazi na arụ ọrụ dị elu n'ihi njirimara dị mma ya. Ụfọdụ ihe ndị pụtara ìhè nke mullite bụ mgbasawanye ọkụ dị ala, nrụpụta ọkụ dị ala, nkwụsi ike dị mma, ike okpomọkụ dị elu, yana ezigbo nkwụsi ike kemịkal. Usoro nhazi mullite na-adabere n'usoro e ji ejikọta alumina- na silica nwere reactants. Ọ na-ejikọta ya na okpomọkụ nke mmeghachi omume na-eduga n'ịmepụta mulllite (okpomọkụ mullitisation). A kọwawo na okpomọkụ dị iche iche dị iche iche ruru narị ogo Celsius dabere na usoro njikọ ejiri.