What are the factors that affect the quality of electric heating tubes

What are the factors that affect the quality of electric heating tubes

The quality of electric heating tubes mainly depends on the following six factors: power accuracy, electrical strength, insulation, leakage current, lifespan, corrosion resistance, scale, etc.

1. Power accuracy: Mainly related to the quality of the resistance wire and the technical level of the manufacturing factory. Before mass production, Hongchuang needs to conduct temperature coefficient experiments to determine the qualified cold state resistance of the power scale.

2. Insulation: The primary factor affecting the insulation of electric heating tubes is the sealing technology of the tubes. Hongchuang can usually achieve over 1000 megaohms.

3. Electrical strength: The main factors that affect the electrical strength of electric heating tubes include the thickness of the insulation layer, the quality of the insulation layer's material, the length of the electric heating tube, the radius and number of twists and turns. Hongchuang can usually achieve a cold state withstand voltage of 2000V for 1 second and a breakdown current of 0.5mA on electric heating tubes.

4. Life span: The life span of an electric heating tube is not only related to the quality of the resistance wire, but also to factors such as the quality of magnesium oxide powder and the selection of resistance wire diameter. Regarding high-temperature electric heating tubes, Hongchuang can produce electric heating tubes with an external load of less than 8W/CM2. When selecting the diameter of the resistance wire, it is necessary to calculate the external load of the resistance wire to meet the lifespan requirement.

5. Corrosion resistance is a common issue encountered in water heating electric heating pipes and barbecue electric heating pipes. In addition to reasonable selection of materials, it is also related to the heat treatment of the electric heating tube and the external condition of the electric heating tube.

6. Leakage current: It is mainly related to the temperature during the use of the electric heating tube, the operating voltage of the electric heating tube, and the heating length of the electric heating tube. An important inspection target for high-temperature electric heating tubes.

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