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Pneumatic Bursting Strength Testing Machine For determining the bursting strength of woven or knitted fabrics, non-woven, paper, leather and board by application of a pneumatic load under a rubber diaphragm of a specific area. Provide with a digital readout of pressure with peak value hold facility, renewable rubber diaphragms, and manual clamping device with acrylic bell, forward reverse and neutral drive system. Provide accurate elongation information of fabrics, up to 0.1mm.
Correct use of computerized universal testing machine: When opening the clamp to take the sample, pay attention to the clamping distance of the sample, not too much or too little. When the tensile testing machine and the microcomputer are connected, the operation must be carried out according to the program requirements. It is strictly forbidden to operate the program due to illegal operation; The parameters to be printed check whether the printer has paper and replenish it in time before printing. After the operation is completed, shut down the tensile testing machine for rubber according to the program requirements. It is strictly forbidden to cut off the power directly.
Testing to ASTM D4060 involves mounting a flat specimen to a turntable that rotates horizontally at a fixed speed. Two arms, each supporting an abrading wheel, are then lowered so that each wheel touches the surface. Before starting the test, a “suction arm” is lowered between the wheels to remove the abraded material from the sample’s surface. The turntable then starts rotating forcing rub-wear action of the wheels against the sample’s surface for the specified number of cycles or until a given mass of coating has been lost or until the wheels start exposing the substrate.
The principle of testing that you should know: Stitch the sample with one or two pieces of specified multi-fiber adjacent fabric, which is placed in soap solution or other washing solution, mechanically stirred at the specified time and temperature, cleaned and dried. Taking the original sample as the reference sample, assess the discoloration of the sample by the left gray scale, and then assess the color stain of the adjacent fabric by the right gray scale. Discover more info on https://www.gesterinstruments.com/.