Brief introduction and application of electric heating radiant tube

Author: Huaye radiation tube | Release time: 2020-04-23

Heating radiant tube is an electric heating element enclosed in a protective sleeve for electrification and heating, which radiates heat indirectly to the furnace lining and the work piece to be processed by the casing. It is widely used in various heating furnaces in the heat treatment industry.

Main Usage: electric heating radiant tube is widely used for heating machines and equipment and air, it is often used for internal heating of various molds, heating cores of hot fans, industrial electric furnace and domestic electric heating equipment such as small electric furnace, kiln furnace, muffle furnace, heating and air conditioning equipment, all kinds of baking electric heat tubes such as bread machine, cream packaging machine, etc.

Product  Features:
1. It can ensure the controllability of the atmosphere in the furnace;
2. Strong heating capacity and high efficiency;
3. Save heat-resistant steel;
4. Convenient temperature control, installation and maintenance, easy to seal;
5. Since there is no muffle tank in the furnace, the furnace volume is enlarged and the production capacity is improved.

Product Category:
1. Linear spiral surrounds the electric heating radiant tube
2. Ribbon spiral surrounds the electric heating radiant tube
3. Electric heating radiant tube with axial twists and turns (commonly known as squirrel cage)

Technical parameters:
1. Electric heating wire cold resistance error range ≤3%.
2. The insulation resistance between external protecting tube and the heating wire is greater than 2 m Ω.
3. External diameter of heating pipe: from 60mm to 300mm.
4. Heating power: from 2KW/ unit to 24KW/ unit.
5. Length of the outer tube of the heating pipe: from 800mm to 2800mm in various specifications.
6. Outer wall thickness of radiant tube: from 1.5mm to 16mm in various specifications.
7. Radiation heating pipe is often made of Cr20Ni80 (nickel-chromium series) Cr25A15, Cr21A16Nb, Cr27A17Mo2 (iron-chromium-aluminum series) and other materials.