Provide test corrective - side compression strength testing of corrugated board testing standards and procedures GBT ..

Strength test of corrugated board edge crush test standards and procedures GB / T6546 corrugated board compression strength test on the sample slice is very strict, generally use a dedicated side pressure sampler cut the sample; at the start of the test phase should be by means of a special Sample guides stood vertically on the secondary sample test platform. The results are shown: Cardboard vertical edges compressive strength is calculated according to the following formula to N / m expressed: R = F × 1000 (10 to the third power) / L where: R represents a vertical edge compression strength, N / m; F represents the maximum pressure, N; L denotes the size of the long side of the specimen, mm. In accordance with the relevant standards, when the compression strength test, the sample container from the three samples, each cut three were no mechanical indentation, no printing marks and damage to the sample, corrugated direction of the sample should be short side , the sample size is 25mm × 100mm, error ± 0.5mm. This requires sampler sharp blade should be kept to an absolute, and the blade on the tool holder, the mounting position to the right, cutting edges and sipes are angled at 45 ° to adjust the fit. In addition, the tip can not grazing the bottom of flutes, prevent blade bending deformation, so cut out of the edge of the sample corrugated prone to damage and fluff phenomenon, affecting the accuracy of detection. How the adhesive strength of the base paper and cardboard ring crush strength, largely determines the compression strength cardboard. Determination of compression strength of corrugated board according to the following steps: Step one: turn on the power to turn on compression strength tester power. Step two: sampling and preparation of corrugated board must be finished board, and has a lateral edge of the positioning side, the transverse dimension of not less than 30cm, the longitudinal dimension of not less than 15cm; specific steps: & Oslash; knife pushed away from the corrugated cardboard sampler fixed positioning stop board, cardboard cutter longitudinal line with the direction, orientation flat against the positioning fence; & Oslash; knife into fixed positioning fence, first cut a further positioning edge; & Oslash; the other activities raised from the positioning fence 10cm cutter position, and then cut out a new positioning edge against the fixed fence, cut a further positioning side, then the orientation flat against the activities of the positioning fence, cut lengthwise 10cm; & Oslash; the active positioning fence 2.5cm from the cutter position is adjusted, cardboard sample longitudinal direction of the knife is consistent with the positioning edge against the activities of the positioning fence, cut out the lateral 2.5cm, obtain longitudinal × transverse = 10cm × 2.5cm of the sample; & Oslash; Repeat, get eight or 10 samples. Step three: test the prepared sample is placed (placed in the circle) between the upper and lower plate compressive strength tester, and clamped with two guides, two flush. "Test" button is pressed to start the test instrument. Test values ??displayed on the digital display when the sample crushed. All samples were tested in order to obtain a set of test values. Step four: After printing and reset the test is completed, the "Print" button on the instrument is pressed, print out the test results. "Reset" Double-click on the digital key, zero