Tearing Strength Tester Action and Principle
time：2021-01-28 09:37Browse：118Times
Tearing Strength Tester, simply speaking, is a device used to measure whether a material is firm and can resist any pressure without being torn，Stress required to tear polymer material by specified method.
Tear strength tester is suitable for testing tear resistance of film, sheet, soft PVC, PVDC, waterproof coiled material, woven material, polyolefin, polyester, paper, cardboard, textile and non-woven fabric.
Tearing resistance testing machine is composed of pendulum bracket, pendulum shaft, pendulum body, expanding weight, fixed fixture, movable fixture, punching knife, pendulum release mechanism, sample notching and locking system, which is used to measure the tear degree of paper, paperboard and fabric, and the result is an important basis for judging the quality of paper, paperboard, film and sheet, fabric and rubber or plastic coated fabric. Accurate determination of tear strength is of great guiding significance to product quality control and product performance improvement.
Fabric Tear Strength Tester Test method:
1. pendulum method: ASTMD1424；; ISO13937.1； JISL1096Section8.25.5，MethodD； GB/T3917.1
2. Single tongue method: ASTMD2261；; ISO13937.2； JISL1096Section8.15.1，MethodA-1； GB/T3917.2
3. Trapezoidal method: ASTMD5587；; ISO973.4； JISL1096Section8.15.4，MethodC； GB/T3917.3
4. Wing method: ISO13937.3
Fabric Elmendorf Tear Tester Test principle:
The sample is fixed on the tongs, and a notch is cut into the sample, and the pendulum at the maximum potential energy position is released. When the movable tongs leave the fixed tongs, the sample is torn along the notch direction, and the work done by tearing the fabric for a certain length is converted into tearing force.
Tearing Tester Test standard:
1. GB/T455-2002 "determination of tearing degree of paper and paperboard"
2. GB/T3917.1-2009 "Tearing Properties of Textiles-Part 1: Determination of Tearing Strength by Impact Pendulum Method"
3. GB/T16578.2-2009 Determination of Tear Resistance of Plastic Film and Sheet Part 2; Elmendorf (Elmendorf) Act
4. Industry standard HG/T2581.2-2009 "Determination of Tear Resistance of Rubber or Plastic Coated Fabrics Part 2: Impact Pendulum Method"
5. International Standard ISO1974-2012 Paper-Determination of Tear Degree Ermando Method
6. International Standard ISO13937.1 "Tearing Properties of Fabrics Part 1 Determination of Tearing Strength by Impact Pendulum Method"
7. TAPPIT414 "Internal Tear Resistance of Paper", standard of American Paper and Paper Industry Technical Association
8. ASTMD1424-07a, Determination of Tear Strength of Fabric by Impact Pendulum Method (Elmendorf)
9. JISL1096Section8.15.5, Method Pendulum Method for Testing Tear Resistance of Woven Fabrics
10. JISL1018Section8.16.1, MethodA "Pendulum Method for Testing Tear Resistance of Knitted Fabrics"
