Three zwickiLine universal testing machines are used to perform tensile tests on foils. According to ISO 527, foils are tested without having to meet the strict requirements of Annex C; however, the zwickiLine enables accurate travel measurement up to 800 mm. Tests on standard plastic specimens according to Charpy ISO 179 and Izod ISO 180 are implemented using the HIT5.5P pendulum impact tester. Last, the HDT/Vicat Allround checks the determination of heat deflection temperature according to ISO 306 and ISO 75 within an oil medium. All the information obtained from these tests can be used to easily draw conclusions about the quality of the synthetized PE and PP materials.
For the selection of the right testing machines, Unipetrol was interested in nothing less than the best technology available when it came to testing machine equipment that required a higher level of automation comparison to previous equipment. They also required a partner that could provide a high availability of spare parts and guarantee of reliable service for the future. Since the beginning of the cooperation with ZwickRoell, Unipetrol has been very satisfied with all of the testing machines and their reliable test results.