cardboard box design |
Posted: May 5, 2018 |
cardboard box design A certain width of the sample, the length of the unit length of the pressure can be called the side pressure strength, corrugated box edge pressure is the ability to withstand pressure parallel to the direction of corrugation. In accordance with the relevant standards, while carrying out side pressure strength testing, cut out 3 pieces of no mechanical impressions, no printing marks and damaged samples from each of 3 cartons, and the corrugation direction of the sample should be short side, the sample size 25mmx100mm, error ± 0.5mm. Requires the sampler blade should be sharp, and the blade mounting position is appropriate, the blade edge and the knife slot angle can be adjusted to 45 degrees. In addition, the tip can not touch the bottom of the sipe to prevent the blade bending deformation, in order to avoid cutting the edge of the sample corrugated damage and fluff and affect the accuracy of detection. Side pressure intensity conversion formula is: R = F × 1000 / L Where: R is the compressive strength of corrugated cardboard edge, with N / m said: F is the value of the sample crush read force; L is the size of the long side of the sample, the unit is mm. The ring crush strength of the base paper and the bond strength of the cardboard largely determine the edge compressive strength of the cardboard. The results are expressed as averages.
|
||||||||||||||||
|