The article is provided by Jinan Sanquan Zhongshi Experimental Instrument***.
I. Introduction. Films have a wide range of applications in packaging and other fields. However, the impact resistance of the film is one of the key factors in its application. In order to accurately assess the impact resistance of films, we need a reliable test method. The film pendulum impact tester is one such tool, which can provide a strong basis for the impact resistance of the film by simulating the impact situation in the real application.
Second, the test principle.
The film pendulum impact tester uses a semi-spherical punch to impact and break through the film specimen at a certain impact velocity. By measuring the energy dissipated by the punch, we can evaluate the pendulum impact resistance energy value of the film specimen. The principle of this test method is based on the law of conservation of energy, which states that the energy consumed by the punch striking the film is equal to the energy absorbed by the film specimen when it is breached.
3. Test steps.
The film specimen is fixed to the grip of the testing machine to ensure that the specimen is flat and wrinkle-free.
Select the appropriate semi-spherical punch and set the impact speed according to the standard.
Start the testing machine so that the punch hits the film specimen at a set speed.
The position and velocity of the punch after impact are recorded, and the energy consumed by the punch is calculated by the energy conservation formula.
Based on the obtained energy value, the pendulum impact resistance of the film specimen was evaluated.
Fourth, advantages and applications.
Film pendulum impact testers offer the following advantages:
High accuracy: By precisely controlling the speed of the punch and measuring the energy consumed by the punch, it is possible to accurately assess the impact resistance of the film.
Easy to operate: simply fix the film specimen on the grip, select the appropriate punch and start the testing machine.
Wide application: The testing machine is suitable for various types of film materials and is widely used in packaging materials and other fields.
With film pendulum impact testers, we can quickly and accurately evaluate the impact resistance of thin films. This is of great significance for optimizing the performance of film materials and improving the quality and safety of products. Therefore, this testing machine is an indispensable tool for scientific research and production in materials science, packaging engineering and related industries. With the continuous advancement of technology and the growth of application demand, the film pendulum impact testing machine will play an increasingly important role.