1700C Tube Furnace Accessories Parts High Purity 99.6% Alumina Ceramic Tube

Overview for Alumina Tube

The alumina ceramic tube (99.6% Al2O3 material) can be used at operating temperature upto 1750C degree in both oxidizing and reducing tmospheric conditions. Alumina Tubes could be evacuated max to 10-3 Torr under temperature 1600 degree C. It proves inert to carbon and refractory metals in many severe situations..

Product illustration

Various diameters of alumina ceramic tube for LABORATORY TUBE FURNACES

Various diameters of alumina ceramic tube for LABORATORY TUBE FURNACES

Technical Specifications

Notes: Standard sizes OD40mm, OD60, OD100mm etc are available, other size can be produced as per customer’s requirements

Application Notes

The alumina content of the ceramic tube is more than 99.6%, the bulk density (g/cm2) ≥ 3.80, and continuous working temperature is 1600°C. The alumina tube features high-purity and high-temperature high-quality characteristics, but most corundum materials have poor thermal shock resistance so need to be cautious and careful during operation.

• For the first time using, it needs to be preheated to eliminate stress and pollutants. Set the heating rate of 5~8℃/min, heat up to 1300℃, keep it for 30 minutes. The temperature rise speed should not be too fast, and the temperature cooling rate should be set. The temperature rise rate should not be higher than 10°C/min, and the temperature cooling rate should be lower than 10°C/min (5°C per minute is better).
• When load and unload the samples, the furnace temperature should not be higher than 200 degrees. In addition, do not touch the furnace tube at high temperature with low temperature objects.
• Make sure the heated material moisture less. For crystal water and samples with high water content generated during heating, it is recommended to dry the material firstly, and then put them in the corundum furnace tube for sintering.
• When purging the atmosphere gases, pay attention to controlling the gas flow rate to avoid breaking due to the large temperature difference.
• Furnace tube support frames are welded on both sides of the furnace to avoid deformation and crack because of gravity.
• Put insulation ceramic plugs inside the tube.
• After using it, keep the inside of the tube clean, make sure no sample remains.

Program Thermal Tech (Luoyang) Co., Ltd, (hereinafter referred to Programtherm, owning its manufacturing plant Luoyang Pure Furnace Co., Ltd) has more than 16 years of experience in furnace heating industry, with capabilities in Designing and Manufacturing lab & Industrial Furnaces independently for various applications. Programtherm products mainly cover muffle furnaces, tube furnaces, elevator furnaces, car bottom furnaces, atmosphere furnaces, vacuum furnaces etc with Max working temperature reaches up to 1750 degree C. In addition to the mentioned wide range of standard products, our powerful engineer group also support customized services according to customers’requirements.

Programtherm is owning total manufacturing facilities of 1500 square meters and more than 30 staffs and a group of experienced engineers. 5S management system; Products have been successfully exported to more than 40 countries and regions around the world. Such as Europe, South Asia, South America, Australia, New Zealand and Africa etc. Our self-developed high-temperature heating equipment has provided great help for universities, scientific research institutions and industrial and mining enterprises.