Charpy and Izod tests on plastics | HIT Pendelum Impact Testers

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HIT Pendelum Impact Testers for tests on plastics specimen from 5 J to 50 J.
Impact testing is used to determine material behavior at higher deformation speeds. Classical pendulum impact testers determine the impact energy absorbed by a standardized specimen up to break by measuring the height of rise of the pendulum hammer after impact.
Several test methods are commonly employed:
♦ Charpy (ISO 179-1, ASTM D 6110)
♦ Izod (ISO 180, ASTM D 256, ASTM D 4508) plus 'unnotched cantilever beam impact' (ASTM D 4812)
♦ Impact tensile tests (ISO 8256 und ASTM D 1822)
♦ Dynstat impact bending test (DIN 53435)
► Pendulum Impact Testers for Plastics Testing - Accurate, Reliable and Operator-Friendly ◄
Together with tensile and flexure tests, Charpy impact tests are the most frequently performed mechanical tests in the polymer industry. ZwickRoell’s HIT range of pendulum impact testers offer a solution that combines high precision with cost effectiveness.
► Advantages ◄
♦ HIT pendulum impact testers automatically identify the pendulum in use, ensuring that measured values are always determined in the correct range and in accordance with the standard in use.
♦ A world first is the use of carbon double rods for the pendulum. This provides a high level of stiffness in the impact direction and a strong concentration of masses at the point of impact.
♦ Each pendulum is equipped with a quick-change device. Pendulums can be changed quickly and without the need for tools.
♦ The optional pendulum disc brake is virtually wear-free.
♦ Operator convenience is a prominent feature of the HIT pendulum impact testing systems. Easy-to-reach controls, on the same level wherever possible, help avoid user fatigue.
♦ The electronics contain a high-resolution digital encoder for accurate measurement of the impact angle. An RS232 interface is available for connection to laboratory data-management systems. A PC can be connected via a USB plug-and-play interface.
00:00 - Charpy and Izod tests on plastics | HIT Pendelum Impact Testers
00:21 - Measuring the specimen
00:28 - Centering the specimen
01:06 - Tool-free pendulum change
01:26 - Change of Charpy fixtures
01:57 - Setting gage for impact tests
02:21 - Temperature cabinet
02:38 - Automatic pendulum return
02:48 - Specimen preparation
#charpytest #izodtest #pendulumimpacttester

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28 июн 2024

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Комментарии : 5

@ZwickRoellTV Год назад

More information www.zwickroell.com/products/products-for-impact-testing/

@SuperMaraki16 3 года назад

Hello, I have a question. How do you prepare the plastic specimen out of plastic pellets? Do we need a specific machine or we just melt it and put it in a mold with the dimensions required?

@ZwickRoellTV 3 года назад

The molding parameters and the type of mold being used can have a significant effect on the test results you obtain. If you aim to produce results you can compare with other laboratories or with data sheets from the material producers, you should strictly respect ISO 294-1 if you use injection molding, or ISO 293 if you apply compression molding. For injection molding of thermoplastics you will need an injection molding machine and a mold with symmetric cavities of same volume. For thermosets you may produce platens and then machine the specimen from the platen, for example by a milling machine.