Tsono-Senge Mullite Makristasi Anopa Yakakwira Melting Point, Yakaderera Inodzoreredzwa Kuwedzera Kwemafuta uye Kunyanya Kupokana Nekutyisa Kutyisa KweFused Mullite.

Corundum mullite
High-purity fused mullite
Electro-fused mullite

Tsanangudzo Pfupi

Fused Mullite inogadzirwa neBayer process alumina uye yakakwira kuchena quartz jecha uku ichisanganisa mune yakakura-yakakura yemagetsi arc choto.

Iyo ine yakakwira yemukati yetsono-yakaita semullite makristasi ayo anopa yakakwira kunyungudika, yakaderera inodzoreredza kuwedzera kwemafuta uye kupikisa kwakanyanya kuvhunduka kwekupisa, deformation pasi pemutoro, uye kemikari corrosion pakupisa kwakanyanya.

BATA ZVINO

Yakasanganiswa Mullite 75

Items		Unit	Index	Typical
Kemikari yakagadzirwa	Al₂O₃	%	73.00-77.00	73.90
	SiO₂	%	22.00-29.00	24.06
	Fe₂O₃	%	0.4 max(Fines 0.5%max)	0.19
	K2O+Na₂O	%	0.40max	0.16
	CaO+MgO	%	0.1% max	0.05
Refractoriness		℃	1850min
Bulk density		g/cm³	2.90min	3.1
Girazi chikamu chemukati		%	10max
3Al₂O₃.2SiO₂Phase		%	90min

F-Fused; M-Mullite

Yakasanganiswa Mullite 70

Items		Unit	Index	Typical
Kemikari yakagadzirwa	Al₂O₃	%	69.00-73.00	70.33
	SiO₂	%	26.00-32.00	27.45
	Fe₂O₃	%	0.6 max(Fines 0.7%max)	0.23
	K2O+Na₂O	%	0.50max	0.28
	CaO+MgO	%	0.2%max	0.09
Refractoriness		℃	1850min
Bulk density		g/cm³	2.90min	3.08
Girazi chikamu chemukati		%	15max
3Al₂O₃.2SiO₂Phase		%	85min

Nzira Yekugadzira

Fused Mullite inogadzirwa neBayer process alumina uye yakakwira kuchena quartz jecha uku ichisanganisa mune yakakura-yakakura yemagetsi arc choto.

Application

Inoshandiswa zvakanyanya semidziyo yemhando yepamusoro yegiredhi refractories, senge zvidhinha zvidhinha muchoto chegirazi uye zvidhinha zvinoshandiswa muchoto chemhepo inopisa muindasitiri yesimbi.

Inoshandiswawo muCeramic kiln uye petrochemical indasitiri uye zvimwe zvakawanda zvinoshandiswa.

Fused Mullite faindi dzinoshandiswa mune Foundry coatings kune yayo yekupisa kutyisa kuramba uye isina-kunyorova zvivakwa.

Features

• Kugadzikana kwepamusoro kwekushisa
• Low reversible thermal kuwedzera
• Kurwisana nekurwisa slag pakupisa kwakanyanya
• Kugadzikana kwemakemikari kuumbwa

Mullite, chero yemhando isingawanzo mineral ine aluminium silicate (3Al2O3 · 2SiO2). Iyo inoumbwa pakupfura aluminosilicate mbishi zvinhu uye ndiyo inonyanya kukosha inoumba ceramic whiteware, porcelains, uye yakakwirira-tembiricha insulating uye refractory zvinhu. Maumbirwo, akadai semullite, ane alumina-silica chiyero cheinenge 3: 2 haichanyungudika pazasi 1,810 ° C (3,290 ° F), nepo iyo ine yakaderera reshiyo inonyungudika patembiricha yakaderera se1,545 ° C (2,813 ° F).

Natural mullite yakawanikwa ichena, makristasi akareba paChitsuwa cheMull, Inner Hebrides, Scot. Iyo yave ichizivikanwa chete mune yakasanganiswa argillaceous (clayey) yakavharirwa mune intrusive igneous matombo, mamiriro anoratidza yakanyanya tembiricha yekuumbwa.

Kunze kwekukosha kwayo kune yakajairwa ceramics, mullite yave sarudzo yezvigadzirwa zvemhando yepamusoro uye inoshanda zvekeramics nekuda kweiyo yakanaka zvivakwa. Zvimwe zvakatanhamara zvemullite zvakadzikira kupisa kwekuwedzera, kuderera kwemafuta conductivity, yakanakisa creep resistance, yakakwirira-tembiricha simba, uye yakanaka kugadzikana kwemakemikari. Iyo nzira yekugadzira mullite inoenderana nenzira yekubatanidza iyo alumina- uye silica-ine reactants. Izvo zvakare zvine hukama nekushisa uko maitiro anotungamira mukuumbwa kwemullite (mullitisation tembiricha). Mullitisation tembiricha inonzi inosiyana nemazana akati wandei emadhigirii Celsius zvichienderana nenzira yekubatanidza yakashandiswa.