Electric Heating Tube ParametersIt is an electric heating tube with double-ended leads, using a metal tube as the protective shell (including stainless steel, copper tube, various imported steel), along the central axis of the tube evenly distributed spiral high-quality electric heating alloy wire (nickel-chromium, iron-chromium alloy heating wire), and the gaps are tightly filled with crystalline magnesium oxide powder with good heat resistance, thermal conductivity and insulation. The ends of the tube are sealed with silicone, and then processed by other processes. This heater has the characteristics of simple structure, high mechanical strength, high thermal efficiency, safety and reliability, easy installation, and long service life. With its strong advantages, it is widely used in air heating, metal molds and various liquid heating. It is divided into U-shaped electric heating tube, double-U flange-mounted electric heating tube, threaded electric heating tube, double-ended finned electric heating tube, double-ended waterproof electric heating tube, water heater heating tube, etc.
Calculation of heating value
The heating value can be changed by using a voltage regulator to change the input voltage and current.
The heating value is proportional to the square of the voltage and the square of the current.
When the voltage becomes 1/2 of the original, the heating value becomes 1/4
When the current becomes 1/2 of the original, the heating value also becomes 1/4
How to verify the electric heating tube
The most intuitive way to verify the quality of an electric heating tube is: first wipe the surface of the electric heating tube clean, then connect to AC 220V power supply, dry burn in the air, turn off the power after the surface turns red, wait for the electric heating tube to cool completely, then wipe with a napkin. There should be no black oxide powder on the white paper (no reaction with oxygen in the air), indicating it is a good electric heating tube.
Carbon fiber heating element is the most competitive high-tech material in this century. Its emergence has set off a new revolution in the electric heating field. The replacement of metal heating elements by carbon fiber heating elements will become an inevitable trend.
