Fabric Tear Strength Tester Single Slit Tear Test

The fabric tear strength tester is used to test the impact tear strength of textiles, woven fabrics, non-woven fabrics and coated fabrics. Qisnun Precision Electromechanical Technology Co., Ltd. is a manufacturer. Greet customers who need to inquire.

Applicable standards:

GB 3917.1, FZ/T6006-1991, FZ/T75001-1993-1999, ASTM D1424-96, ASTM D5734-96

Main parameters:

1. Mechanical type, pointer display;

2. Test range: 400, 800, 1600, 3200 and 6400 gms (counterweight optional);

3. Test Accuracy: ±0.5%.

Experimental principle:

When the single seam method is torn, a triangle of force is formed at the level tearing of the fabric. As the stressed weft yarns in the sample are gradually separated from top to bottom, the warp yarns that are not directly stressed beginnt to slip relative to the stressed weft yarns and gradually approach to form an approximate triangular area. At the bottom of the tear opening, the warp threads in the stressed triangle are under tension together, and the warp thread near the bottom of the triangle bears the greatest force, and the force on the other warp threads gradually weakens depending on a certain load gradient.

Due to the frictional resistance between the threads, slippage is limited. When sliding, the chain tension increases rapidly and the strain elongation also increases sharply. When the first warp yarn constituting the base of the biased triangle is stretched to break the elongation, this warp yarn breaks, and the stressed state of the second warp yarn is immediately transformed into the state before the breaking of the warp yarn. front warp, thus repeated, the warp yarn yarn one The roots are continuously broken one by onee, forming a fracture surface like a knife cut. It can be seen that when the single seam method is torn, the broken thread is the thread of the non-tensioning system, and the direction of the pulling force is perpendicular to the original axis of the broken thread. 64000 mN weight, also with heavy duty sample cutters.

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