Overview
QHD pendulum damping tester is a professional test instrument of SHIBO brand, designed and manufactured according to professional standard ZBN72020 and reference to international standard ISO1522. This instrument is suitable for sampling test of Paints, varnish and related products, and is specially used to determine the film Hardness of Paints varnish and related products.
Features
1. Using Konig pendulum design, the total mass is accurate to 200 +/- 0.2g
2. The swing period is stable at 1.4 +/- 0.02S
3. Glass value standard is 250 +/- 10S/178 +/- 7 times
4. Equipped with an automatic recording device, it can accurately record the number of swing angles
5. The instrument structure is complete, including components such as instrument holder, swing rod, technical device, and instrument cover
Principle
The Working Principle of the pendulum damping tester is to determine the film Hardness based on the damping time of the pendulum swing on the paint film. When the pendulum swings at a certain period, the softer the surface, the faster the swing decay, and vice versa. The results of the Koenig pendulum and platinum shovel pendulum tests cannot be converted to each other, because the interaction between the pendulum and the coating depends on the complex resilience and viscosity characteristics of the coating, so the product standard only specifies the use of one pendulum to determine the damping time of a certain paint film.
Applications
Paints, varnishes and related products sampling
Standards
ZBN72020、ISO1522
Steps
1. Prepare the test board and place it on the instrument holder
2. Adjust the level Adjust the foot to ensure the level of the instrument
3. Use the starting handle to start the swing lever
4. Monitor swing through rulers and optical signal lines
5. Timer automatically records the number of swing angles
6. Calculate Film Hardness Based on Damping Time
Notice
• Make sure the instrument level is adjusted accurately before use
• The type of swing rod must be selected according to the product standard, and the results of Koenig pendulum and platinum shovel pendulum cannot be converted
• Regularly check whether the swing rod mass and swing cycle meet the technical specifications
• Avoid operating in non-standard environments to avoid affecting Test accuracy
• Pay attention to safety during operation to prevent accidental swing of the swing rod from causing injury
