Since its inception, the dual-glass module has shown its "tough guy image" against harsh weather conditions and installation violence. It has a long life (30 years of life), anti-beating (not easy to produce battery cracks), low PID attenuation, and compatibility with dual-glass Component production has become an inevitable consideration for new design production lines.
The drilling technology of the back glass of the double glass module is very important. At present, there are mainly mechanical method and laser method. The comparison of the two technologies is as follows:
| Items | Mechanical Method | Laser Method |
| Input cost | low fixed investment high maintenance cost | easy maintenance low maintenance cost |
Processing type and aperture | various shaped holes with a diameter of 3-30mm | free combination switch |
| Processing yield | 2.5mm thickness glass | 5% higher than mechanical drilling |
Processing quality and accuracy | high chipping index low precision | with non-tapered holes basically no dust residue low damage |
The future development trend of photovoltaic glass is light and thin. The market has already promoted 1.6mm-2.0mm glass, and the yield rate of mechanical drilling will drop significantly. Therefore, photovoltaic glass manufacturers are almost all seeking laser drilling solutions:
● Processing quality and processing accuracy: Laser processing has the advantages of no taper hole, clean inner wall of the hole, basically no dust residue, low damage, etc. The chipping index is significantly better than mechanical drilling, and the defect detection function can be developed; in addition, the accuracy of laser drilling method high.
Through the comparison of the above mechanical method and laser method in many aspects, it is obvious that laser processing technology is the main development trend of the drilling of double glass component backplane glass. Big
The laser drilling method has high precision and low pollution, which can improve the product yield.
Sino-Galvo Tech. was founded in 2001, and our galvanometer scanners already have got CE, ROHS, FCC and REACH certifications, quality control in accordance with ISO9001 quality system standard, and we exported our products to many countries and regions.We also provide complete marking system including fiber laser marking machine, CO2 laser marking machine, production date batch number serial number laser marking machine and other laser equipment.
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