Vicat-Prüfgerät / Vicat-Punkt HDT/V

Wärmeformbeständigkeitstemperatur

HDT/Vicat Tester Overview The tester is used to determine the Heat Deflection Temperature or the Vicat Softening Point. All the specimens are charged with a constant load and immersed in a bath, where temperature is increased at a standard velocity. The attained heat resistance rate of plastic material is a widely required parameter for product characterization, for quality control, as well as for evaluating their conformity to the previewed applications. Standards ISO 2507, ISO 75, ISO 306, ASTMD 1525, ASTMD 648 and the equivalent. “HDT” test means The test determines the temperature at which a specified deflection occurs when a standard test specimen is subjected to a bending stress, to produce one of the nominal surface stresses according to international standards. This test is important for both quality control and research into plastics. “VICAT” test means The test determines the temperature at which a standard indenter penetrates 1mm into the surface of a test specimen under load. It is used to establish the difference between many types of thermoplastic materials with regard to their softening properties.