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Corrugated cardboard longitudinal warpage

July 02, 2022
Controls warping in the vertical direction:
1. Increase the preheated wrap angle of the tissue paper;
2, reduce the paper preheating angle;
3, reduce the production speed under the premise of ensuring the quality of the board;
4, to reduce the amount of single-sided cardboard stacking;
5, reduce the single-sided cardboard in the triple preheater winding;
6, on the premise of not affecting the quality of the paperboard, reduce the amount of glue on the double coater;
7. Increase the tension in the forward direction of single-sided corrugated board machines;
8, face paper exchange;
9, spray paper on the treatment;
10, increase the amount of glue on the single-sided machine;
11, appropriately reduce the speed;
12, slowly increase the temperature of the hot plate of the double-sided machine (by increasing the steam pressure or increasing the number of steam hot plates);
13. Humidify the facing paper when entering the double-sided machine.
Control vertical warpage:
1. The use of base paper with low tension is not affected by the quality of the paperboard;
2. Increase the pressure on the paperboard by the cotton belt to increase the paperboard's force on the hotplate;
3, reduce the preheater brake report group strength;
4. Increase the drag force of single-faced corrugated board on the overpass.
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Author:

Ms. Christina

Phone/WhatsApp:

+8613763260555

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