Standards
l ISO 75
l ISO 306
l ASTM D 1525
l ASTM D 648
Application
The tester is used to determine the Vicat softening temperature and the heat deflection temperature under load for plastics and thermoplastics.
The attained heat resistance rate of plastic material is a widely required parameter for product characterization, for quality control and for evaluating the conformity to the previewed applications.
“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.
Features
l Control mode: computer and application software
l Motor-operated lifting platform
l The designed volume ensures a very good thermal exchange
l Enables to produce the graphs of deflection Vs Time or Temperature
l Automatic recording the test results of Vicat /HDT temperatures
Parameters
Number of stations | 3/4/6 |
Temperature measuring point | 1 |
Temperature range | RT to 300℃ |
Temperature ramps | 50℃/h, 120℃/h or others on request |
Deflection range | -1.00 to 9.00mm |
Deflection measuring instrument | Digital gauge with communication interface |
Test capability | HDT & VICAT |
Control way | Computer and application software |
Test graphs | Deflection or Penetration curves Vs Time or Temperature |
Span of specimen support (HDT) | 64 or 100mm |
HDT |
Flexural stress | Method A—1.8 Mpa Method B—0.45 Mpa Method C—8.0 Mpa |
Vicat |
VICAT mass | 10N and 50N |
