Premium Alumina Sand Producer

Premium Alumina Sand Producer

Alumina sand contains the elements aluminum and oxygen. If bauxite raw materials are chemically treated to remove silicon, iron, titanium and other oxides, the products produced are alumina raw materials with high purity, and the Al2O3 content is generally above 99%. The ore facies is composed of 40% ~ 76% γ- Al2O3 and 24% ~ 60% α- Al2O3 composition. γ- Al2O3 can be converted into α- Al2O3, and significant volume shrinkage occurs at the same time.

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Establish scientific research team

Establish scientific research teamEstablish scientific research teamEstablish scientific research team.

Complete the process plan

Finished the aluminum alloycomposite material technologyscheme and accumulatedexperience.

Complete technical upgrade

By improving the production process,the product technology has beenupgraded.

The company was founded

The company was established, andtwo new production lines were putinto use.

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Dongguan Ruihui Surface Treatment Materials Co., Ltd. was established on January 4, 2017 with a registered capital of 1 million Yuan, the building area is about 1200 square meters, and there are about 30 employees. It is a comprehensive enterprise specializing in the production of surface treatment materials. The company integrates production, research and development, sales and service.

It continuously absorbs advanced production processes at home and abroad, and establishes a sound quality certification system in accordance with ISO9001 standards. It has complete experimental facilities and advanced physical and chemical testing equipment, manufacturing white corundum abrasive products. Widely used in semiconductors, refractory materials, ceramic materials, electronic chemicals, grinding and polishing, precision casting, building materials, petroleum, aerospace, military and other manufacturing fields.

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Alumina Sand Factory

Alumina sand is mainly composed of aluminum oxide in barrel or cone shaped triangular crystals. It has glass luster or diamond luster. The density is 3.9 ~ 4.1g/cm3, the hardness is 9, and the melting point is 2000 ± 15 ℃. It is insoluble in water, acid and alkali. High temperature resistance. The colorless and transparent one is called white jade, and the red one containing trace trivalent chromium is called ruby; Blue color containing divalent iron, trivalent iron or tetravalent titanium is called sapphire; The dark gray and dark color containing a small amount of ferric oxide is called corundum powder.

Alumina Sand Factory

Alumina Sand For Sale

Alumina sand is suitable for a variety of dry and wet treatment processes. It can grind the rough surface of any workpiece finely. It is one of the most economical abrasives. This kind of sharp synthetic abrasive with rhombus has the hardness second only to that of diamond, and is especially suitable for use when there are strict requirements for iron pollution. It is used for the roughest cutting, and can also be made into pebbles to process workpieces with precise dimensions to achieve extremely low roughness. Because of its high density, sharp and rhombic structure, it is one of the fastest cutting abrasives.

Alumina Sand For Sale

Alumina Sand Exporter

Alumina sand can also be used as the bearing of precision instruments, the diamond, grinding wheel, polishing agent, refractory and electrical insulator of clocks and watches. Colorful gemstones can be used for decoration. Synthetic ruby single crystal can be used as laser material. In addition to natural minerals, it can be made by melting aluminum hydroxide with hydrogen oxygen flame. Aluminum oxide is the reason that metal aluminum is not easy to be corroded in air. Pure metal aluminum can easily react with oxygen in the air to form a thin layer of aluminum oxide film on the aluminum surface exposed to the air. This aluminum oxide film can prevent aluminum from being further oxidized. The thickness and properties of oxide films can be enhanced by a process called anodic treatment (anodic corrosion protection).

Alumina Sand Exporter

Alumina Sand Company

Alumina sand with high hardness can be used as abrasive, polishing powder, high-temperature sintered aluminum oxide, called artificial corundum or artificial gem, and can be used to make mechanical bearings or diamonds in clocks and watches. Alumina is also used as high-temperature refractory materials to make refractory bricks, crucibles, porcelain, artificial gemstones, etc. Alumina is also the raw material for aluminum smelting. It can be made by calcining aluminum hydroxide γ- Al2O3。 γ- Al2O3 has strong adsorption and catalytic activity and can be used as adsorbent and catalyst.

Alumina Sand Company
User Reviews

What users say about Ruihui

The product is very perfect, the quality is excellent and very durable, the manufacturer's delivery speed is very fast, and I look forward to continuing to cooperate next time.

John
John

Your company is strong, the logistics speed is very powerful, and the delivery time is accurate. I highly appreciate this cooperation and hope to continue to cooperate with your company for a long time!

Mike
Mike

They are a very strong company with accurate delivery times and guaranteed product quality! The receptionist was very kind and patiently answered our questions!

Dizy
Dizy
Frequently Asked Question

Do you have any question?

Firstly, We make sure the quality before the goods to be packed, if clients get the item with Substandard products, We have warranty for our clients,we will ship out the new replacements.

Al2O3 alumina is the starting material of aluminium production, both of metallic aluminium and aluminium oxide. It is porous an has a large reactive surface.

The refractive index of fused alumina is approx. 1.76, whereas that of normal glass types is approx. 1.4. The closer the refractive indices are to each other, the more transparent the system (e.g. varnishes).

Generally, we suggest to make shipment by sea which costs less. We also can follow other transportation method you asked.

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