cardboard box maker |
Posted: May 5, 2018 |
Compressive strength The compressive strength of corrugated boxes refers to the pressure test machine under the uniform application of dynamic pressure until the box can withstand the damage until the maximum load and deformation. Adhesive strength Corrugated cardboard, paper, paper and corrugated corrugated corrugation of the peak adhesion, in a certain unit length can withstand the maximum peel force, called the adhesive strength of corrugated cardboard, said the corrugated cardboard mounted firmness. A-type corrugated cardboard testing, stripping rack pin should be Φ3mm, and B, C-type corrugated cardboard peel off the pin should be used more appropriate Φ2mm. Peel off each rack pin should be exactly aligned with the central part of the corrugated slot, and the spacing adjustment is equal, the only screws tighten. Bonding strength of the test sample, respectively, from the three sample boxes were taken 4, the corrugation direction for the short side direction, the material should be intact, no degumming, no blistering phenomenon. Specimen size of 25mmx80mm, error within ± 1.0mm, so as to better ensure the accuracy of test results.
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