Briefly describe the preparation work before using the digital tissue burst strength machine

The digital fabric burst strength tester is a testing equipment used for various textiles, non-woven fabrics and other materials. When the warp, weft and all directions are stressed simultaneously (elastic diaphragm method), the expansion force and expansion degree are measured. Performance measurement. It adopts hydraulic blasting method and precisely controls the bursting time through intelligent control algorithm. It has two control methods: manual and automatic.

Let\'s take a look at the preparation work before using the digital fabric burst strength machine:

1. Environmental adjustment Humidity

(1) Sample conditioning and humidity testing should be carried out in an environment with a temperature of 21 ± 1℃ and relative humidity of 65±2%.

(2) The sample doesIt must be equilibrated in the above environment for at least 4 hours before testing.

(3) Samples cannot be stacked during debugging.

2. Sample preparation

(1) Take samples from the warp (length direction) and weft (width direction) directions. 5 samples, and each test sample in the same direction does not contain the same warp and weft yarns.

(2) When cutting the sample, if it is a solid color fabric, the thread at the edge of the sample should be removed, and when placing the sample preparation jig, the short sides should be parallel to the wire in the opposite direction to be measured. In other words: if the warp thread is to be tested, the short side of the template must be parallel to the weft thread; If the weft thread is to be tested, it must be parallel to the warp thread.

(3) The sample mustbe taken at least 15 cm from the edge of the fabric and \"↑\" should be used to indicate the direction of deformation on the cut test sample. .

Due to the frictional resistance between the wires, slippage is limited. When sliding, the tension of the warp threads increases rapidly, and the deformation and elongation also increase greatly. When the front warp yarn which forms the base of the stressed triangle is stretched to the elongation at break, this warp yarn breaks and the stress state of the second warp yarn immediately changes to the front state breakage of the front warp thread. Repeatedly, the warp thread continues. Continuous fractures occur one after another, forming a fracture surface that resembles a knife cut. It can be seen that when tearing with a single stitching method, the broken thread is a thread in a system without tension and the direction of forcetraction is perpendicular to the original axis of the broken wire. A special pendulum can increase up to 10% for testing thick textiles. Weight of 64,000 mN, while also using a robust sample cutter.

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