This impact test machine equipment is designed according to the standards of ISO 812, ISO 974.The brittle temperature and low temperature performance of different rubber materials or different formulas can be measured.
The Impact Test Apparatus for Soft Plastic Brittle Temperature is a device used to determine the brittle temperature of soft plastics, which is the temperature at which the material becomes brittle and more likely to crack or break under impact. In this test, plastic samples are cooled to progressively lower temperatures and subjected to an impact force. The test apparatus records the temperature at which the material fails by cracking or shattering.
The equipment is composed of a refrigeration compressor main body, a heating device, an electronic control box, a cooling tank, a cooling medium circulation system, and an automatic alarm device. The refrigeration compressor works continuously. When the temperature is close to the set temperature, the heating device in the cooling tank starts to provide heat in proportion to balance the excess cold generated by the refrigeration system to achieve the purpose of constant temperature. Stirring can make the cooling medium in the cooling tank circulate continuously to make the temperature uniform. The impact device is designed to clamp the sample in a cantilever beam type. Under the condition that the holder does not deform, each sample should be clamped stably and firmly. The impact head moves in a direction perpendicular to the upper surface of the sample, and impacts the sample at a test line speed of 2.0±0.2m/s, and the moving speed remains unchanged within at least 6mm after the impact. Care should be taken to ensure sufficient impact energy in order to achieve the specified impact velocity during and after the impact. Therefore, it is necessary to limit the number of impact specimens per test.
Compliance： ISO 812/ASTM D2137/DIN 53546/JIS K 6261
1. The device is brand new. The structure of the test system is advanced and reasonable, and the manufacturing process is standardized. It is a product developed independently. It has independent intellectual property products, with a beautiful appearance and generosity.
2. The main functional components of this test box use the world-famous brand configuration, advanced and reliable technical principles, noise and energy conservation are best control --- its performance can be comparable to similar products from foreign countries.
3. The matching of parts and assembly is good. Its main functional components use the original imported imports of international advanced brands, which improves the safety and reliability of the product, and can ensure the requirements of users for a long time and high frequency.
4. Equipment has good operability, maintenance, good temperature stability and durability, good safety performance, no pollution environment, and not harmful to personal health.
5. The tester consists of three parts: cooling and compressed unit, cold bath impact device and temperature control box.
6. The cold bath temperature is controlled by the smart PID temperature controller and the temperature control is accurate.
7. The impact device adopts the acceleration vertical impact method.
8. Test device can meet the test methods specified in the standard of ISO 974: 2000, and determine the brittle temperature of soft plastic.
9. The device is simple and the life limit is not less than 10 years.
10. During the supply, we can equip the equipment with a third-party verification certificate.
1. Refrigeration method requirements: composite refrigeration
2. Punch radius: 1.6mm±0.1mm
3. Radius of jaw: 4.0mm±0.1mm
4. Clearance between centerline of punch and fixture: 3.6mm±0.1mm
5. The gap between the outside of the punch and the fixture is 2.0mm±0.1mm
6. Impact stroke: the punch stroke is greater than 5.0mm when impacting the sample
7. The impact speed reaches 200±20cm/s
8. Specimen clamping capacity: 1: Type A specimens can be clamped 15 pieces each time, and Type B specimens can be clamped 5 pieces each time; 2: Type A specimens can be clamped 60 pieces each time
9. Impactor: A sample:
a) The punch radius is 1.6±0.1mm;
b) The jaw radius is 4.0±0.1mm;
c) The gap between the punch centerline and the fixture is 3.6±0.1mm;
d) The gap between the outside of the punch and the fixture is 2.0±0.1mm
10. Impactor: B sample:
a) The punch radius is 1.6±0.1mm;
b) The gap between the punch centerline and the fixture is 7.87±0.25mm;
c) The gap between the outside of the punch and the fixture is 6.35±0.25mm
11. ISO 974:2000 standard sample specification: length 20.00 mm±0.25mm, width 2.50 mm±0.05, thickness 2.00 mm±0.10mm
12. Test temperature: -10°C — -76°C
13. Constant temperature accuracy: ±0.5℃
14. Timing time: 3min±1S, sound alarm prompt
15. Distance from the center of the impactor to the lower end of the holder: 11±0.5mm
16. Dimensions of cooling tank working chamber 180×570×150 (mm) (width×depth×height)
17. Power: 1100w
18. Cooling bath volume: 3L
19. Power supply: three-phase
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