The casing indirectly radiates heat to the furnace lining and the processed workpiece.

Quartz heating tubes are most commonly used as carbon fiber quartz heating tubes.
Carbon fiber heating pipe [3], also known as carbon fiber heating pipe, infrared heating pipe, infrared heating pipe, carbon fiber infrared heating pipe, carbon fiber infrared heating pipe, etc. It involves placing a carbon fiber filament in a quartz tube, vacuum sealing the tube, and applying a voltage to the carbon fiber filament to generate heat. Our company's products use imported heating tubes and carbon fiber heating elements, which have the advantages of large power margin, high temperature resistance, strong high heat capacity, long service life, and adjustable power.
Radiation electric heating tube
Radiation heating tube is a device that encloses the electric heating element in a protective sleeve and generates electricity. The heat is indirectly radiated to the furnace lining and processed workpiece by the sleeve heating tube, and is widely used in various heating furnaces in the heat treatment industry. The electric heating alloy material used for radiation heating tubes should have a high electrical resistivity and high electric heating conversion rate. Due to the placement of the radiation tube inside the casing, the heat transfer process is different from that of ordinary open type electric heating elements, and its thermal shielding is large. During the heating process of the heating tube, the temperature of the element must be controlled to prevent overheating. When the radiation tube is closed for heating, the surface temperature of the electric heating element is about 100 ℃ -150 ℃ higher than the furnace temperature. So when selecting materials, it is necessary to analyze the furnace temperature and atmosphere inside the furnace, and select the correct heating material