The segmented filament of the halogen heating lamp is an improved filament structure for halogen heating lamps:
Structural features
– Multi-segment design: It is made of multiple segments of tungsten filaments connected by spiral wires, rather than the traditional single straight wire.
– Connection method: The two ends of the tungsten filament are connected with elastic wires and tin sheets respectively. The elastic wire can buffer the stress caused by the thermal expansion and contraction of the tungsten filament, and the tin sheet is used to connect the external power supply.
Advantages
– Improved durability: The segmented structure can disperse heat, reduce the risk of wire breakage caused by local overheating, and make the tungsten filament less likely to break after the heating lamp is heated for a long time.
– Improved thermal efficiency: Compared with the traditional single-filament structure, the segmented wire increases the heating area and the contact points with the quartz tube, etc., and improves the electrothermal conversion efficiency.
Application areas
– Industrial heating: In industrial production processes such as baking paint, ovens, plastic printing and drying, and spray painting, it provides efficient and stable heat sources for production equipment.
– Commercial places: such as insulation equipment in restaurant kitchens, heating devices in shopping mall food display cabinets, etc.
– Home heating: Some halogen heaters use segmented halogen heating tubes to improve heating effect and product life.
Production process
– Winding process: The tungsten wire is wound into multiple segments according to the design requirements and connected by spiral wires, which requires high winding accuracy and connection firmness.
– Packaging process: The segmented wire is placed in a shell such as a quartz tube, vacuumed and filled with halogen inert gas, and then sealed and packaged.
