[Dry Goods Sharing] Analysis of Common Problems in UVLED Glue

As a manufacturer of UVLED glue curing machine, Tianhui has many years of experience in the UV field. Today, I will take stock of some common problems in UVLED glue with you. I hope it will be helpful to everyone! UVLED glue common problems are: A> UVLED glue is not solidified 1. Materials are not appropriate: UVLED glue requires that the adhesive surface is at least transparent or can be available, otherwise the material is not applicable to UVLED glue 2. UVLED ultraviolet line strength is not enough: If the amount of glue is large, you need to choose a UVLED glue curing machine with a greater radiation strength, otherwise the curing speed of the glue is very slow B> The difference in the solidification time of the UVLED glue solution machine will cause the difference in solidification time. According to the actual situation, the ultraviolet strength strength should High can be cured within a shorter irradiation time, otherwise for a long time, the curing room of UV glue is 3-10 seconds. C> The point replenishment thickness during adhesion UVLED glue is not as much as possible when bonding, the better, the better the tianhui experiment proves that the thinner the glue layer, the higher the strength, and the thickness of the general glue layer does not exceed 0.15mm. D> When the viscosity liquid of UV glue is moved by external force, the amount of frictional resistance between the molecules is called viscosity. The greater the friction resistance, the greater the viscosity; the smaller the friction resistance, the smaller the viscosity. In the international unit system, the unit of viscosity is MPA.S. At normal temperature, the viscosity of water is 1MPA.S. The lower the viscosity of UV glue, the lower its strength? The viscosity and intensity of UVLED glue have nothing to do with the strength. UV glue with low viscosity may be higher in strength. E> The performance characteristics of UV glue UVLED solidification time, controllable reactions; non -solvents, pollution -free; suitable for automated operations; wide bonding range, high adhesion strength, wide use surface, excellent optical performance, excellent optical performance. The color of glue is highly transparent, and the weather is good and does not change yellow! F> The curing principle of F> UV glue and the cured condition UV glue (photoretinomic agent) in UV glue (photoresist) in UVLED ultraviolet rays to absorb ultraviolet light to generate active free radicals or cations, causing monomer aggregation, cross -linking, and chemical reactions of the receipt , Make adhesives from liquid to solid state within a few seconds. UV glue must be solidified under ultraviolet light with a wavelength of 200nm-400nm. According to the accumulation of some of their own experience, Tianhui summarizes the above characteristics. It is not necessarily comprehensive. Welcome new and old customers to enlighten me!