Thermal Radiation Welding Machine
Thermal Radiation Welding Machine for Automotive Lighting
Clean and controlled plastic welding for automotive lamp lenses and housings.
Non-Contact Lens Heating · Controlled Housing Heating · Clean Weld Appearance · Leak-Tight Joining
Thermal Radiation Welding for Automotive Lamp Lens-to-Housing Assembly
The final process should be selected according to lens and housing materials, weld geometry, appearance requirements, sealing standards and production cycle.
Appearance Quality · Weld Overflow Control · Airtightness · Dimensional Stability · Repeatable Heating · Easy Maintenance
Thermal radiation welding uses controlled radiant heat to soften the joining surfaces without direct contact. It is a practical option for automotive lighting housings and other thermoplastic assemblies where clean heating, repeatable positioning and controlled pressure are important.
Cleaner Automotive Lamp Welding with TR Technology
As customers demand better overflow control and easier production maintenance, TR welding is becoming an ideal solution.
The lens is melted by high-temperature thermal radiation, while the housing is heated through low-temperature contact—helping deliver cleaner welds, better process control, and more stable production.
Lens → non-contact thermal radiation
Housing → low-temperature contact heating
When to Choose Thermal Radiation Welding
This process can be evaluated when the project requires non-contact heating but does not need the concentrated energy input of a laser plastic welding machine. For components that benefit from broader infrared heating and flexible joint geometry, compare it with our infrared welding machine.
During project review, Jfortune evaluates the plastic material, joint design, part dimensions, heating uniformity, fixture access, cycle requirements and cooling method. Trial parts and weld acceptance criteria should be confirmed before the production fixture and automation sequence are finalized.
Why Thermal Radiation Welding
Clean Lens Heating
Non-contact radiant heating helps protect appearance-sensitive lamp lenses.
Controlled Melt & Flash
Independent heating strategies for the lens and housing help control the melt condition and weld overflow.
Leak-Tight Lamp Assembly
Suitable for applications requiring controlled sealing performance.
Lower Equipment Complexity Than Laser
For suitable lamp designs, TR welding can provide a practical alternative without the complete optical system required by laser transmission welding.
Thermal Radiation Welding vs. Infrared Welding
Thermal Radiation Welding — Jfortune Lamp Configuration
Radiant heating on the appearance-sensitive lamp lens combined with controlled contact heating on the housing.
Infrared Welding
Non-contact radiant heating is applied to the plastic joining surfaces before pressing and cooling.
How Thermal Radiation Welding Works
→ 01 Part Positioning
→ 02 Lens Radiant Heating
→ 03 Housing Controlled Heating
→ 04 Heater Retraction
→ 05 Joining Under Pressure
→ 06 Holding & Cooling
Typical Applications
Headlamps
Lens-to-housing joining
Tail Lamps
Appearance-sensitive lamp assemblies
Signal & DRL Lamps
Plastic lens and housing assembly
Decorative Automotive Lighting
Visible plastic lighting components
5-Minute Automatic Tool Change
Automatic clamping and quick pneumatic/electrical connections reduce tooling changeover time and production downtime.