A kind of stretching net stress release process

Abstract

The invention discloses a screen pulling stress releasing technology. The technology specifically comprises the following steps: 1) adding an infrared heating technology while standing after radial and transverse stretching of a silk screen; and 2) selecting an infrared heating device of which the released radiation frequency is close to molecular vibration frequency of a silk screen body so as torealize resonance absorption, and thus accelerating the releasing of the stress of the silk screen body. According to the technology adopting the abovementioned mode, the screen stretching time can be greatly decreased, so that the screen stretching efficiency can be greatly improved, the production cost is decreased, and the stress of the silk screen can be quickly fully released; the silk screen in later preparation process is high in stability and low in tension variation value, so that the preparation efficiency and the yield can be greatly increased; the silk screen is small in deformation, extension and contraction during printing, so that the service life is greatly prolonged, the printing quality is greatly improved, and as a result, the screen printing plate market competitiveness can be greatly increased.

Description

technical field [0001] The invention relates to the technical field of printing components such as solar cell sheets and high-precision electronic components, and in particular to a stretching stress release process. Background technique [0002] With the increasing demand for energy, energy issues have increasingly become a major issue restricting the development of the international society and economy, which prompts people to continue to explore new energy sources, among which solar energy research occupies an important position. As one of the core technologies of solar energy research, solar cells have also developed rapidly in recent years. Improving the conversion efficiency of solar cells is the main research object of solar cells at present. In addition to the selection and optimization of battery substrate materials and the improvement of cell manufacturing processes, etc. In addition to the requirements, the conversion efficiency of solar cells can also be improved...

AI Technical Summary

Problems solved by technology

However, this kind of stretching method not only takes a long time, but also it is difficult to completely release the stress of the screen. In the subsequent production, the screen will continue to release part of the stress, which will cause the tension of the original stretched screen to be higher than the tension when the production is completed. low

In addition, during the screen printing process, due to the extrusion deformation of the squeegee, the tension of the screen will change significantly before and after use due to the insufficient release of the screen stress, which will affect the subsequent printing effect, reduce the service life of the screen plate, and affect the efficiency of the cell.