Different Welding Methods
Fin/Absorber Structure & Item | Fusion Bonding | Package Ultrasonic Welding | Laser Welding | Normal Ultrasonic Welding |
| Photos |  |  |  |  |
Base Material With Coating | Anodic Oxidation：Fusion Bonding Alumnium Strip+ Copper Tube (riser) | Anodic Oxidation :AlumniumStrip +"U"shapeAluminumStrip+ Copper Tube (riser) | Blue Selective: Full Copper Plate + Copper Tube (riser) | Anodic Oxidation: Aluminum Strip + Copper Tube (riser) |
Black Chrome / BlueSelective: Full AluminumPlate+ "U" shape Aluminum Strip+ Copper Tube (riser) | Black Chrome: Copper Strip+ Copper Tube (riser) | |||
| Structure | Fusion Bonding for two pieces of Alumnium Strip and Alumniu tube, then blowing up Alumiumtube. | Using "U" shape Aluminum Strip to pack Copper Tube (riser), then Ultrasonic Welding "U" shaped aluminum Strip and Strip/Plate. | Laser Welding between Full Copper Plate and Copper Tube (riser) directly | Normal Ultrasonic welding between StripandCopper Tube (riser) directly |
| Structure Stability | Insert Riser Tube inside fusion bonding Strip and pressure tightly, More stronger for the structure. | Same material welding together, more stronger for the structure. | Normal, Only the welding points between Strip and Copper Tube (riser). | Normal.Only about2-3mm welding line between Strip and Copper Tube (riser). A little damage for the fin surface. |
| Conductive Surface | 360° Heat Exchange | 360° Heat Exchange | Welding points for heat exchange. | 3-4mm width welding lin e for heat exchange |