Calcined Alumina, Ordinary Alumina Powder, Gas-Phase Aluminum Oxide

• CAS No.: 1344-28-1
• EINECS: 215-691-6
• Classification: Alumina
• Grade Standard: Industrial Grade
• Kind: Abrasive and Refractory
• Quality: First Class
• Model NO.: 100-0 200-0 325-0
• Name: Calcined Alumina
• Other Names: Alpha Alumina
• Certificate: ISO9001
• Colour: White
• Application: Abrasive and Refractory
• Advantages: Factory
• Transport Package: Ton Bag with 25kg Small Bags
• Specification: AL2O3 99.5 min
• Trademark: WANYU
• Origin: China
• HS Code: 2818200000
• Production Capacity: 35000tons/Year

Product Description

Product Description

High-temperature calcined alumina powder

Calcined alumina is produced by high quality and high purity raw material in the rotary furnace at reasonable temperature. It has characteristic of high conversion rate, stable crystallization and low impurity content, excellent performance of high mechanical strength, stable shrinkage rate, good electrical insulation, high wear resistance and outstanding corrosion resistance.

High temperature calcined alpha alumina powder is produced by aluminum hydroxide powder or industrial alumina powder as raw material, with 1450 ºC high temperature tunnel kiln calcining process, adding special additives reduce the impurity content, improve the alpha conversion rate, control the crystal shape, particle calcined under enough heat preservation time, and the micro powder is the use of high alumina ball mill grinding classification.

Alumina Powder Characteristics:

1.High purity-99.0% to 99.99%;
2. Accurate particle size distribution, strict particle control, get good processing surface during precisely polishing;
3. Main phase - Alpha alumina;
4. Fine size to improve the gloss;
5. Maximize recycling;
6. Easily clean by common alkaline detergent;
7. Advanced production technology and scientific testing to ensure quality stability;
8. Sizes can be tailor-made as per customers' requirement.

Product Parameters

 

Al2O3 ≥(%)	99.5	α- Αl2O3  ≥(%)	94
SiO2 ≤(%)	0.03	L.O. I ≤(%)	0.10
Fe2O3 ≤(%)	0.02	True Density (g/cm3)	3.94
Na2O ≤(%)	0.35	Particle Size (D50μm)	83-98

 

 

Application

Main uses:

This product is used for all kinds of alumina polishing and grinding products, medium and fine polishing, high aluminum shaping materials, unshaped refractories, high aluminum porcelain parts, senior coatings and so on. 
According to different use requirements, formed dry pressing, isostatic pressing process series, hot die casting, grouting molding series, refractory series, casting molding series, alumina structure ceramic granulation powder and other five series of products.

High temperature alumina application areas:

1. Sealing ring, friction plate, vacuum tube, electronic substrate;
2, structural ceramics, electronic ceramics, bioceramics, refractory materials;
3, ball mill lining, ceramic bearing, ceramic cutting tools.
 

Packaging & Shipping

1 MT big bag or 25kg paper bag *40 bags on one pallet ;
 
As per customer's requirement
 

Company Profile

Our company enjoys a well-developed management system and quality system. We have various equipment including 7 smelting furnace, 4 grinding miller, 5 ball grinder, a central laboratory, an OMEC particle size analyzer, a Slap sieving machine, a microscope and other high-tech instruments. The annual production capacity can reach to 50,000 tons according to user demand sub-brand production. Our products, with high cleanliness, strong adaptability and stable performance, are exported to Europe, North and South America, Australia, Japan, Korea, Taiwan, Thailand, Singapore, Malaysia and other more than 30 regions and countries, enjoying a good reputation.
 

Our Advantages

1. We are a manufacturer, which can control the cost easier than trade companies also can give you an answer more quickly.
2. As a manufacturer, we know much in technique and can give you more support in technique problems.
3. Professional and experienced service team, specialized in abrasive production, more than 10 years.
4. Our products are complete in specifications of various sizes.
5. We enjoy a good reputation in the customers in domestic and overseas markets.
6. Large production capacity, short lead time of products.
7. 24*7 online service. 
 

Certifications

FAQ

Q1: Are you a trading company of a factory?

A1: We are a professional factory, which has produced abrasive material since 2009.

Q2: Can you provide free samples?
A2: Yes, free samples under 1kg are provided.

Q3: What is your payment term?
A3: L/C or T/T 30% deposit, and 70% balance at sight of BL copy.

Q4: What's your package?
A4: 25kg/woven bag or a kraft paper bag. Package can be customized.