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What problems are likely to occur after lamination of multilayer plates
发布时间:2019-05-21 11:20 作者:admin

Laminating is a necessary production link in multi-layer plate processing, but there are occasional defects after laminating, resulting in quality problems and can not be used normally. What are the common defects in the production of multilayer board manufacturers? Next, we will have a good chat with you, because only by understanding the reasons for these problems, can we have a better surface, produce better quality multi-layer board, and win a larger market.
 
Laminating is a necessary production link in multi-layer plate processing, but there are occasional defects after laminating, resulting in quality problems and can not be used normally. What are the common defects in the production of multilayer board manufacturers? Next, we will have a good chat with you, because only by understanding the reasons for these problems, can we have a better surface, produce better quality multi-layer board, and win a larger market.
 
 
 
White edge and white corner occur when resin does not enter the glass cloth. The reason for this phenomenon is that the laminated platen is not uniform and the edge of the board is not pressed up; the flow of glue is too large; the high pressure is too early or too late; the heating rate is too fast to make the temperature difference between inside and outside the board too large; the phenomenon of pinhole bubbles is due to too high or too low initial pressure; the high pressure is too low, the high pressure is too late; the resin viscosity is too high and the flow of glue is too low. Non-vacuum compression; excessive initial pressure, too fast temperature rise; stormboard delamination, because after blackening not thoroughly drying, moisture vapor or semi-cured sheet moisture; core board surface impurities; not reaching Tg temperature; insufficient curing time; poor blackening or browning.
 
 
 
In a word, in the production and processing of multi-ply board manufacturers, we should analyze and summarize the specific causes of the problems, find out the problems in time and deal with them in time, so as to minimize the quality defects of the products.

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