Zirconium Mullite brik

Uru ngwaahịa: njupụta buru oke ibu, nnukwu olu, ike igwe dị elu na oke ụlọ na oke okpomọkụ, nkwụsi ike dị mma nke ọma, mbelata ihe na -adịghị ala na mbelata dị elu, yana nkwụsi ike kemịkal dị mma na iguzogide mgbasa ozi alkaline.

Tụkwasịnụ uru: n’ụzọ zuru ezu akpaka nwere ọgụgụ isi refractory mmepụta akara, mba nnyefe

Ngwa ngwaahịa: A na -ejikarị ya eme ihe na akụkụ igodo dị ka klọọkụ iko, klọọkụ eriri iko, klọọkụ ajị anụ, ihe ọkụ na -ere ihe mkpofu, seramiiki frit glaze kilns, ọkụ eletrik, wdg.

nkọwa ngwaahịa

Bricks zirconium mullite na-eme ka usoro mullite dị mma site na iwebata ZrO2 n’ime brik A12O3-SiO2, nke nwere ike melite nguzogide kemịkalụ, nguzogide ujo dị ọkụ ma belata ọnụọgụ nke mullite. A na -emekarị ya site na electrofusion. A na -emepụta ya site na usoro nsị.

Biriki zirconium mullite bụ ihe nrụgharị pụrụ iche emere site na iji alumina ụlọ ọrụ na itinye uche zircon dị ka akụrụngwa na iwebata zirconia n’ime matriks mullite site na usoro nsị na -emebi emebi.

Bricks zirconium mullite na-ewebata zirconia n’ime brik mullite, na mgbanwe mgbanwe toughening nke zirconia nwere ike imeziwanye ihe nrụpụta igwe dị elu nke ihe mullite. Zirconia na -akwalite mmebi nke ihe mullite. Mgbakwunye nke ZrO2 nwere ike mee ka usoro njupụta na nsị nke ngwa ZTM dị ngwa n’ihi ọgbọ nke ihe na -agbaze ala na nhazi oghere. Mgbe ọnụ ọgụgụ buru ibu nke brik zirconium mullite bụ 30%, njupụta usoro nke ahụ akwụkwọ ndụ akwụkwọ ndụ gbara ọkụ na 1530 ° C rutere 98%, ike rute 378MPa, na isi ike rute 4.3MPa · m1/2.

A na -eme brik zirconium mullite site na alumina ụlọ ọrụ na zircon site na mmeghachi omume. N’ihi na mmeghachi omume na sintering na -eme n’otu oge, njikwa usoro siri ike. N’ozuzu, a na -eme ka brik zirconium mullite dị ọkụ na 1450 ° C iji mee ka ha baa ụba n’oge ọkụ, wee kpoo ọkụ ruo 1600 ° C maka mmeghachi omume. ZrSiO4 na -emebi n’ime ZrO2 na SiO2 na okpomọkụ dị elu karịa 1535 Celsius C, na SiO2 na Al2O3 na -eme ka etolite Mullite Nkume, n’ihi na akụkụ nke mmiri mmiri na -apụta n’oge ndakpọ nke ZrSiO4, na ndakpọ nke ZrSiO4 nwere ike nụchaa ahụ, mụbaa akụkụ elu a kapịrị ọnụ, ma na -akwalite sintering.

Ngosipụta anụ ahụ na kemịkal

oru ngo	Ihe mgbochi mgbochi zircon brick		Brick zircon dị elu	Nkịtị zircon brik	Zirconia Corundum brik	Zirconium Mullite brik	Ọkara brik zirconium
ZrO2%	≥65		≥65	≥63	≥31	≥20	15-20
SiO2%	≤33		≤33	≤34	≤21	–	≤20
Al2O3%	–		–	–	≥46	≥60	50-60
Fe2O3%	≤0.3		≤0.3	≤0.3	≤0.5	≤0.5	≤1.0
Porosity pụtara%		≤16	≤18	≤22	≤18	≤18	≤20
Nnukwu njupụta g / cm3		3.84	3.7	3.65	3.2	3.2	≥2.7
Ike mkpakọ na ụlọ okpomọkụ Mpa		≥130	≥100	≥90	≥110	≥150	≥100
Ọnụego mgbanwe ọkụ% adịghị karịa (1600 ℃ × 8h)		± 0.2	± 0.3	± 0.3	± 0.3	± 0.3	± 0.3
Ibu ibu mmalite mmalite dị nro ℃ (0.2MPa, 0.6%)		≥1700