Normal align=center> ( 9 ) Longitudinal downward warpage
Normal > 1 , canvas belt running pressure is not enough
Normal > 1 , check and correct the tension of the canvas
Normal > 2 , the paper bridge output corrugated board tension is not enough
Normal > 2 , properly increase the output tension control
Normal > 3 , surface paper water imbalance
Normal > 3 , spray water and heat appropriately
Normal > 4 , paper force is too large
Normal > 4 , reduce the tension control of the opposite paper
Normal align=center> ( ten ) S -warping
Normal > 1
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Four Reasons for Corrugated Cardboard Softening and Improvement Methods
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