Welding is a crucial step in the production of air duct electric heater systems. The majority of the system is transported through pipelines, so the connections between pipelines and between pipelines and other components are welded in addition to bolted connections. First, weld the flange onto the pipe, and then connect the two pipes together using bolts. Due to the presence of hot oil in the pipeline, the temperature and pressure are relatively high, and the quality of welding directly affects the overall quality of the system. From this, it can be seen that welding process is an indispensable step in the design of thermal oil system.
Welding is a process of rapid local heating and cooling of air duct electric heaters. The welding area, which is constrained by the surrounding body of the workpiece and cannot expand and contract freely, will generate welding stress or even deformation in the welded part after the workpiece cools down.
The air duct electric heater consists of two parts: the body and the control system. The heating element uses stainless steel pipes as protective sleeves, high-temperature resistance alloy wires, crystalline magnesium oxide powder, and is formed through compression technology The control part adopts advanced digital circuits, integrated circuit triggers, high back pressure thyristors, and other components to form an adjustable temperature measurement and constant temperature system, ensuring the normal operation of the electric heater.

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