Solution of Vapor Bubbles in Laminating Machine

2017-11-20 16:11

Laminator pressure bubble problem analysis as long as there are the following several situations:

A. Large-area bubbles caused by vacuum pump failure or power failure during vacuuming. This type of bubble needs to contact equipment maintenance and the smooth flow of the company's external power information.

B. Bubbles caused by foreign bodies. In general, foreign bodies with humidity reaching a certain value will cause bubbles, which requires the control of the previous process.

C. Bubbles caused by EVA not dissolved due to excessive temperature. This type of bubble can take cooling measures to ensure the viscosity of the glue (in fact, if the viscosity of the glue is aside, all bubbles can basically be solved by cooling, except for large-area bubbles). In addition, increasing the pressure and increasing the inflation speed are also good methods to solve the bubble.

D, liquid caused by bubbles, at present we commonly come into contact with such bubbles are mostly due to flux, alcohol.

E. In addition, repeated lamination (mostly by rework, and mostly near the interconnection strips and bus bars) will also cause the components to generate bubbles (complex physical and chemical reactions of EVA produce new gases).

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