• Categories:IR Heating Applications
• Author:E-DEN Lighting
• Origin:E-DEN IR Lighting
• Time of issue:2025-04-26
• Views:0

(Summary description)Non-contact Heating: Directly heats soldering points via infrared radiation to avoid mechanical contact damage to the cells.

 

Precise Temperature Control: Rapid heating and stable temperature maintenance ensure complete melting of solder (e.g., solder paste) without overheating.

 

Uniform Heating: Reduces thermal stress and prevents microcracks or efficiency loss in cells caused by localized high temperatures.

 


 

II. Primary Objectives

 

Reliable Electrical Connection: Achieves metallurgical bonding between cell busbars and ribbons (copper or tin-plated) through molten solder.

 

Enhanced Soldering Efficiency: Adapts to high-speed automated production lines, meeting demands for high precision and consistency.

 

 


 

III. Soldering Process

 

Solder Selection: Use low-temperature solder paste (e.g., Sn-Pb or Sn-Ag-Cu alloys) with a melting point typically between 180–250°C.

 

Preheating: Gradual temperature rise via infrared heating tubes prevents thermal shock-induced cell cracking.

 

Peak Heating: Rapidly reach the solder’s melting point (e.g., 220°C) to enable solder flow and wetting of ribbons and cell busbars.

 

Cooling and Solidification: Solder solidifies after heating stops, forming a stable connection.

 

Pressure Assistance: Some equipment applies slight pressure (e.g., vacuum chucks or rollers) to ensure tight contact between ribbons and busbars.

 


 

Infrared Heating Tube Design for Large-Sized Panels (4m×4m)

 

1. Length Design

 

Coverage of Soldering Area: For continuous 4m soldering paths (e.g., full-panel soldering), design infrared tubes with a 4m emission length to enable single-pass soldering.

 

2. Power Design

Example Solution (4m×4m Panel only for reference)

 





Parameter


Design Value




Total heating tube length


≥4m (dual-tube design)




Single-tube power


10–12kW




Radiation wavelength


Short-wave infrared (1–2μm, strong penetration capability)




Temperature accuracy


±2°C (PID closed-loop control)





 

 

Shortwave Twin Tube Quartz IR Lamp

 

 



 



 

Twin Tube Short Wave Infrared Heating Lamp are widely used in high-efficient industrial fast heating applications.

①：Metal Heating For Aluminum Foil, Aluminum Casting, Aluminum Extrusion

②：Welding equipment such as copper plate or copper wire welding, electronic components wave soldering

③：Photovoltaic industry such as solar cell welding

④：Heating thin iron or steel plates

⑤：Preheating before sheet metal cutting 

⑥：Other heating application such as environment quick heating for thawing or scientific research

 

According to the configuration of different heating filament design and ending cables, twin tube infrared lamp can be produced as the following common filament configuration. 

1: Cables can be one side connection or two sides connection

2: Different heating length designed for partial heating purpose

3: Length is up to 6 meter long and widely used in industrial heating process, such as glass cutting, plastics forming or lamination, auto painting and etc..

 



 

We are customized IR heating lamp manufacturer and we also provide one-stop service for your heating solution. Welcome to inquriy our high efficient heating infrared lamps. If you need twin tube IR lamps with other specifications, please refer the attached technical drawing and contact us for confirmation.