high remperature fire proof lining material refractory insulation bubble alumina

$high remperature fire proof lining material refractory insulation bubble alumina$

Model:	As requirement
Brand:	Lite
Origin:	Made In China
Category:	Construction & Decoration / Heat Insulation
Label:	bubble alumina brick , alumina bubble brick , insulation brick
Price:	US $600 / Ton
Min. Order:	1 Ton

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Product Description

What's the Bubble alumina brick

Bubble alumina brick is a new type of high temperature heat insulation material, it is made of industrial alumina in the electric furnace smelting blowing, crystal type a-Al2O3 micro crystal.
Alumina hollow ball with temperature up to 1750 degrees or more, good thermal stability. Alumina hollow spherical brick bulk density only 1.1~1.5g/cm weight burn line change rate is small, the use of more long-term.

Features of the Bubble alumina brick

1. the use of high temperature, reaching more than 1750 degrees, the thermal stability is good.
2. small size, optimize the structure, reduce the weight of the furnace body.
3. the corrosion resistance of slag is good, and the usage period is long.
4. low thermal conductivity, good thermal insulation effect.

Applications of the Bubble alumina brick

Applicable to cracking furnace, hot blast furnace, heating furnace, tunnel kiln, push board kiln, the crucible furnace and electric furnace, electric furnace lining insulation, is also widely used in metallurgy, refractory, light industry, chemical industry, ceramics, glass, electronics and other industries.

Technical date of the Bubble alumina brick

Item	Bubble alumina brick			Bubble zirconia brick
Item	85	90	99	98
Max service temperature	1680°C	1700°C	1800°C	2200°C
Al2O3/%	≥85	≥90	≥99	-
ZrO2/%	-	-	-	≥98
SiO2 /%	≤13	≤8	≤0.2	≤0.2
Fe2O3/%	≤0.2	≤0.2	≤0.2	≤0.2
Bulk density/g.cm3	1.4-1.7	1.4-1.7	1.4-1.7	≤3.0
Cold crushing strength/Mpa	≥12	≥10	≥9	≥8
Refractoriness under load (0.1MPa,0.6%)	≥1650°C	≥1700°C	≥1700°C	≥1700°C
Reheating Linear Change % (1600 °C,3h) ≤	±0.3	±0.3	±0.3	±0.3
Thermal expansion coefficient (Room temp-1300°C)	～7.8	～8.0	～8.6	～9.0
Thermal conductivity w/(m.k)(Average 800°C)	8	≤1.3	≤1.5	≤0.3

Payment Terms:	TT/LC/DP/DA

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