Burst Tester (Corrugated)
INTRODUCTION: Burst Testers are used as multi-directional tensile test to identify failure in the direction of least resistance for evaluating the materials physical strength and fiber bond. Models are available to test a variety of materials. These models can also be fitted with a device to measure the deflection of the sample prior to burst. PRINCIPLE: The Burst Tester is designed for measuring the bursting strength of sheet materials subjected to an increasing hydrostatic pressure. This pressure is applied to a circular region of the specimen via an elastic diaphragm. The specimen is firmly held round the edge of this circular region by a pneumatic clamping device. When the pressure is applied, the specimen deforms together with the diaphragm. The bursting strength corresponds to the maximum pressure supported by the specimen before failure. Identical, in the principle to a multi-directional tensile test, this measurement is independent from the cutting direction of the sample (machine or cross) since the failure naturally occurs in the least resistance direction. The rubber diaphragms with specific thickness and shore hardness must have a bulge versus pressure pattern within the tolerance of the standards related to the type of material tested. APPLICATIONS: Paper, Corrugated SPECIFICATIONS: * Paper and Foil Standards- ISO 2758 * Corrugated- ISO 2759
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