Causes of abnormal damage to the pipe and line joints in the cartridge heater

Causes of abnormal damage to the pipe and line joints in the cartridge heater

When the equipment is heated for a long time using the heating tube, occasionally, the joint of the heating tube and the line will be abnormally overheated and damaged due to long-term heating, causing the equipment to terminate. Need to replace the heater to continue working. How did the problem form? Because it is an accident, many people disagree, but there are also some people who want to figure out how to prevent problems before they happen, but don't know how to do it. We have sorted out the possible reasons for the frequent overheating and damage of the electrical connectors of the electric heating components such as the lead wire blown, the crimping bolt, and the nut burned and rusted.

The main reason for this abnormal overheating damage is that the electrical installation wiring method is incorrect. Different from the requirements of conventional electrical equipment and component circuit joints (contacts), the electrical joints of electric heating elements require not only correct and reliable wiring and low contact resistance, but also certain heat dissipation characteristics and high resistance to oxidation and corrosion. . In addition to the more serious corrosive gases and liquids (such as constant temperature water baths, salt baths) in the work place of electric heating elements, high-temperature oxidation corrosion is the most common direct cause of damage to the joints of electric heating elements.