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[China]
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Address: Group 4, Chuling Village, Chaohua Town, Zhengzhou, Henan, China
Contact name:Liu
Henan Hongtai Kiln Refractory Co.,Ltd. |
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Activated hollow Alumina Sphere/bubble balls 0.5-1mm
There are mixed grade alumina hollow ball and graded ball two
types: mixed-level ball diameter is 0.2-5mm, graded ball diameters
can be respectively 0.2-1mm, 1-2mm, 2-3mm, 3-5mm. Application:
Alumina hollow balls are widely used in high temperature furnace
and ultra high temperature furnaces such as the petrochemical
industry gasifier reactor, carbon black industry, metallurgical
industry and other high-temperature induction furnaces, etc.
Ceramic Alumina Hollow Ball is a new kind of heat insulation
material, it is used in the eaf melting in industrial aluminum and
blowing, crystal - for Al2O3 nanocrystal. In alumina bubble can be
made for the subject, the use of various shapes, the highest
temperature 1800C, the products of high mechanical strength, for
general light products, and the number of times the volume density
is only one half of corundum products. Therefore, in the gasifier,
petrochemical industry, metallurgy industry, carbon industry
reactor furnace temperature, such hi-temp extensively, made
satisfactory effect in energy saving.
Alumina hollow ball is the hollow spherical light insulating
refractory made from alumina blown out of electric arc furnace
through high temperature melting procedure.
Alumina hollow balls have the advantages of high strength, high
stabilities to chemical and thermal circumstances.It can be
resistant to acid, alkali, salt and all organic solvents.
Activated hollow Alumina Sphere/bubble balls 0.5-1mm
The hollow alumina ball preparing process features using
industrially produced aluminum powder as initial material and
basing on wet chemical process. The preparation process forms
hollow alumina ball in two stages, including the first stage of
forming composite particle with AlOOH.nH2O coated Al and the second
stage of calcining the composite particle at 1000-1100 deg.
Under optimized condition, hollow alumina ball of diameter 0.1-50
micons and wall thickness 100-300 nm may be produced. Compared with
available technology, the present invention has the features of
controllable size of hollow alumina ball, homogeneous wall
thickness, high yield, simple process, low cost and being suitable
for industrial production
Activated hollow Alumina Sphere/bubble balls 0.5-1mm
Type | Feldspar | Feldspar-Mullite | Mullite | Mullite-Corundum | Corundum | ||
Item | |||||||
Chemical composition% | Al2O3 | 20-30 | 30-45 | 45-70 | 70-90 | ≥90 | |
Al2O3+SiO2 | ≥90 | ||||||
Fe2O3 | ≤1 | ||||||
Water absorption, % | ≤5 | ||||||
Acid resistance , % | ≥98 | ||||||
Alkali resistance,% | ≥80 | ≥82 | ≥85 | ≥90 | ≥95 | ||
Thermal resistance | ≥1300 | ≥1400 | ≥1500 | ≥1600 | ≥1700 | ||
Crushing strength | Φ 3 | ≥120 | ≥140 | ≥150 | ≥160 | ≥200 | |
Φ 6 | ≥400 | ≥420 | ≥440 | ≥480 | ≥500 | ||
Φ 8 | ≥480 | ≥520 | ≥600 | ≥620 | ≥650 | ||
Φ10 | ≥600 | ≥700 | ≥800 | ≥900 | ≥1000 | ||
Φ13 | ≥1000 | ≥1100 | ≥1300 | ≥1500 | ≥1800 | ||
Φ16 | ≥1500 | ≥1600 | ≥1800 | ≥2300 | ≥2600 | ||
Φ20 | ≥1800 | ≥2000 | ≥2300 | ≥2800 | ≥3200 | ||
Φ25 | ≥2500 | ≥2800 | ≥3200 | ≥3600 | ≥4000 | ||
Φ30 | ≥3000 | ≥3200 | ≥3500 | ≥4000 | ≥4500 | ||
Φ38 | ≥4000 | ≥4500 | ≥5000 | ≥5500 | ≥6000 | ||
Φ50 | ≥6000 | ≥6500 | ≥7000 | ≥8500 | ≥10000 | ||
Φ75 | ≥10000 | ≥11000 | ≥12000 | ≥14000 | ≥15000 | ||
Bulk density, kg/m3 | 1300-1400 | 1400-1500 | 1500-1600 | 1600-1800 | ≥1800 | ||
Note: The data of bulk density is given for reference only, not as the acceptance criterion. | |||||||
Activated hollow Alumina Sphere/bubble balls 0.5-1mm
This spec is just for our ordinary products' range. Any specific
products can be produced by your special request.
Packing of Alumina Hollow Ball :
1.5 ton bulk bag, or can be packed by your request.
You are welcome to contact me if you are interested or want to get
more information.
Activated hollow Alumina Sphere/bubble balls 0.5-1mm
Q1. Can I have a sample about Alumina Hollow Ball order ?
A: Yes, we welcome sample order to test and check quality. Mixed
samples are acceptable.
Q2. What about the lead time?
A:Sample of Alumina Hollow Ball needs 3-5 days, mass
production time needs 1-2 weeks for order quantity more than 100MT.
Q3. Do you have any MOQ limit for the order?
A: Low MOQ 1 MT, 1kg for sample checking is available.
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5
days to arrive. Airline and sea shipping also optional.
Q5. How to proceed an order ?
A: Firstly let us know your requirements or application of Alumina
Hollow Ball.
Secondly We quote according to your requirements or our
suggestions.
Thirdly customer confirms the samples and places deposit for formal
order.
Fourthly We arrange the production.
Q6. Is it OK to print my logo on the bag of product?
A: Yes. Please inform us formally before our production and confirm
the design firstly based on our sample.
Q7: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control
system and the defective rate will be less
than 0.2%.
Secondly, For defective batch products, we will resend them to you
or we can discuss the solution i
ncluding re-call according to real situation.
