Multi-bore Alumina Tubes, Multi-bore Al2O3 Tubes

Product Information

Alumina ceramic is the most common technical material and relatively traditional ceramic. High purity alumina has excellent performances in electrical insulation, high chemical resistance, and low thermal expansion. Alumina Rod is used to making parts for CVD, ion implants, photolithography, and semiconductor. Alumina Rod has high hardness and good wear resistance. And, Alumina Rod is high temperature resistant and can be used for a long time at a high temperature of 1600 degrees. In addition, it has strong corrosion resistance and good electrical insulation performance. The electrical insulation performance is particularly outstanding at high temperatures, with a withstand voltage of more than 8000v per millimeter of thickness. Alumina boats have high thermal conductivity, compressive strength, and thermal shock resistance.

Aluminum Oxide, or alumina, is the most common technical ceramic material used today. The versatility of alumina stems from its broadly impressive material properties, ease of manufacture, wide availability, and budget-friendly cost. ATT produces a range of alumina purity from 75% alumina to 99.95% alumina - these bodies are the industry work-horse materials for applications that require electrical isolation, wear resistance, high temperature resistance, and good mechanical strength.

Synonyms

Alumina; aluminium oxide; aluminum(III) oxide; aluminium(III) oxide; aloxide; aloxite; alundum; oxo-oxoalumanyloxy-alumane, sapphire; corundum; aluminum trioxide; alumina ceramic; alpha-Corundum; bauxite; Electrocorundum; keto-ketoalumanyloxy-alumane; α-Al2O3; α alumina; alpha alumina

Multi-bore Alumina Tubes Specifications

Dimensions

Per your request or drawing

We can customized as required

Properties（Theoretical）

Advantages

• Resistant to strong acid and alkali attack at high temperatures

• Transparent to microwave radio frequencies

• High compressive and dielectric strength

• Very specific thermal conductive and thermal expansion rates

• Excellent electrical insulation properties

• Wear and abrasion resistant

• High thermal conductivity and thermal shock resistance

• Low density

• High hardness and mechanical strength

Alumina Machining

Alumina can be machined in green, biscuit, or fully dense states. While in the green or biscuit form, it can be machined relatively easily into complex geometries. However, the sintering process that is required to fully densify the material causes the alumina body to shrink approximately 20%. This shrinkage means that it is impossible to hold very tight tolerances when machining alumina pre-sintering. In order to achieve very tight tolerances, the fully sintered material must be machined/ground with diamond tools. In this manufacturing process, a very precise diamond coated tool/wheel is used to abrade away the material until the desired form is created. Due to the inherit toughness and hardness of the material, this can be a time consuming and costly process.

It can be injection molded, die pressed, isostatically pressed, slip cast, and extruded. Once fired and sintered, it can only be machined using diamond grinding methods. Advanced green and biscuit machining techniques developed by Precision Ceramics allow more complex components to be manufactured using traditional machining methods. In addition, Alumina can be readily joined to metals or other ceramics using metalizing and brazing techniques.

Applications of Alumina Multi-bore Alumina Tubes

• Spare parts for pan-semiconductor equipment (manufacturing equipment such as LCD and LED)

• Insulation

• Wear parts

• General machinery, hydraulic components

• Used as injector tubes, gas nozzles, and insulators.

• High-temperature situations & a protector for high-temperature thermal couples.

• Electronic components & substrates

• High temperature electrical insulators

• High voltage insulators

• Laser tubes

• Machine components

• Mechanical seals

• Precision shafts and axles in high wear environments

• Roller and ball bearings

• Seal rings

• Semiconductor parts

• Shot blast nozzles

• Thermocouple tubes

• Tap plates

• Valve seats

• Wear components

• Wire and thread guides

• Ballistic Armor

Packing of Alumina Multi-bore Alumina Tubes

Standard Packing:

Sealed bags in carton boxes. Special package is available on request.

As a ceramic material, Al2O3 is quite fragile in a lot of cases. The Multi-bore Alumina Tubes are usually held in plastic bags by vacuum, and protected with heavy foam.

ATTs’ Multi-bore Alumina Tubes is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.

Chemical Identifiers