JUNHE® 2610 no-clean flux
JUNHE® 2610 no-clean flux is a low-solids, halogen-free, water-soluble flux for soldering and automated soldering of solar cell wafers coated by immersion or spray. The flux does not contain turpentine, resulting in clean and full solder joints with little residue on the surface and high surface insulation resistance.
Product Details
Introduction
JUNHE® 2610 no-clean flux is a low-solids, halogen-free, water-soluble flux for soldering and automated soldering of solar cell wafers coated by immersion or spray. The flux does not contain turpentine, resulting in clean and full solder joints with little residue on the surface and high surface insulation resistance.
By controlling the ratio of acid value and related solvents, we provide customized products in a variety of environments, achieving the perfect blend of easy application and long-term reliability in the welding field.
Features
- Excellent strain regulation：By adjusting the type or proportion of low-, medium- and high-boiling point solvents in the formula, it maintains excellent activity within the welding temperature window.
- High efficiency of good products：The synergy of various penetrating agents and wetting agents reduces the surface tension between the wafer and the solder tape, reducing the rate of false soldering and fragmentation.
- No cleaning after soldering：Low solid content, clean surface of copper skin after soldering, less oily, crystalline and other residues, no cleaning.
- Good safety and environmental protection：Comply with RoHS and REACH standards, meet the International Electrotechnical Association IEC 61249-2-21 halogen-free standards.
Technical Parameters
| Item | Specification | Reference Standard |
| Bronze Mirror Experiment | Pass | IPC-TM-650 2.3.32 |
| Refractometer Concentration(%) | 27-27.5 | High Precision Refractometer |
| Diffusion of Welding | ≥85% | IPC/J-STD-005 |
| Surface Insulation Resistance | >1.0×10 8ohms | J-STD-004 |
| Water Extract Resistivity | Pass: 5.0×10 4 ohm·cm | JIS Z3197-99
JIS Z3283-2001 |
| Halogen Content | ≤0.1% | JIS Z3197-99
JIS Z3283-2001 |
| Silver Chromate Test | Colour of test paper is white or light yellow
Colour (non-halogenated) |
J-STD-004; IPC-TM-650 |
| Fluorine Content Test | PASS | J-STD-004; IPC-TM-650 |
| Flux Grade | OR/MO | J-STD-004A |
| Halogen-free Standard | Coincidence | IEC 61249 |
Application area
- This product is generally applicable to P-type and N-type battery components
- Suitable for all brands of series welding machine
