The Life Of The Heating Tube is Related To The Quality Of The Resistance Wire
The quality of the heating tube mainly depends on the following aspects: insulation, leakage current, electrical strength, corrosion resistance, power accuracy, life and so on.
1. Insulation: The main influence on the insulation of the heating tube is the sealing process of the electric heating tube. Electric appliance factories can generally achieve more than 1,000 megohms.
2. Leakage current: mainly related to the temperature of the heating tube, the voltage of the heating tube, the heating length of the heating tube, etc. An important assessment index for high-temperature electric heating tubes.
3. Electric strength: The factors that affect the electric strength of the heating tube mainly include the thickness of the insulating layer, the quality of the material of the insulating layer, the length of the heating tube, the radius of the bend and the number of bends. Qiaohua Electric Appliance Factory can generally achieve 2000V, 1 second, and a breakdown current of 0.5mA on the cold withstand voltage of the electric heating tube.
4. Corrosion resistance is a common problem encountered in water heating heating pipes and barbecue heating pipes. In addition to reasonable selection of materials, it is also related to the heat treatment of the heating tube and the surface condition of the heating tube.
5. Power accuracy: It is mainly related to the quality of the resistance wire and the technological level of the manufacturer. The electrical factory needs to do temperature coefficient tests before mass production to determine the cold resistance in the qualified power range.
6. Life: In addition to the quality of the resistance wire, the life of the heating tube is also related to the quality of the magnesium oxide powder and the selection of the diameter of the resistance wire. For high temperature heating tubes, Qiaohua Electrical Appliance Factory can manufacture heating tubes with a surface load below 8W/CM2. When selecting the diameter of the resistance wire, it is necessary to calculate the surface load of the resistance wire to meet the life requirements.
