Get social with us!

Industry News

Different manufacturing processes of Insulation Compressed Pressboard

The Insulation Compressed Pressboard made by the wet paperboard machine is divided into a hot pressing method and a cold pressing method according to the drying method.
1. Cold pressing method, that is, on a common hydraulic machine, one or more sheets of paper are continuously or intermittently removed from the moisture of the wet cardboard, and then dried by a special machine drying device to make the product reach the standard moisture process.
The Insulation Pressboard produced by the cold pressing method is soft, has good processing performance and good bending performance. However, compared with the pressboard transformer produced by the hot pressing method, there are still disadvantages such as uneven moisture of the cardboard, large shrinkage ratio and small tightness range. 
                                                               Insulation Compressed Pressboard||power transformer        
2. The hot pressing method is to process the formed Insulation Pressboard with a special hot press. The dewatering and drying of the wet cardboard are carried out simultaneously in the hot press, and finally the pressboard transformer moisture reaches the process specified by the process.
The products produced by the hot pressing method not only have good mechanical properties, high insulation strength, but also uniform thickness and flat surface, and can produce different tightness products according to different uses.

ZTELCE Insulation Compressed Pressboard, low price and good quality.

Leave a message