Does anyone know the reason why the sandwich panel is bubbling and partially degumming during the pressing process?
Italian Prith hydraulic press gives the solution:
1, control the moisture content of the board in the range of 8 to 12%
2, control the amount of coating in line with process requirements
3, buck the second stage of the speed should be slow, hot pressing temperature should be appropriate to reduce
4, check the resin quality
5, the appropriate extension of hot pressing time
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Hydraulic press to suppress the plate, the bubble and local degumming these two phenomena are due to:
1, veneer moisture content is too high or dry uneven
2, the amount of glue is too large
3, buck faster or hot pressing temperature is too high
4, the degree of condensation is not enough resin
5, hot pressing time is insufficient
