Vicat Temperature and Head Delfection Testing Machine
Standards
l ISO 75
l ISO 306
l ASTM D 1525
l ASTM D 648
Application
It is mainly used for the determination of heat deflection temperature and Vicat softening point temperature of non-metallic materials such as plastics, hard rubber, nylon, electrical insulation materials, long fiber reinforced composites, high strength thermosetting laminated materials, etc. Easy to operate, precise control, it is a highly intelligent test instrument, widely used in colleges and universities, scientific research units and product quality supervision and inspection units.
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
Computer control.
Multiple safety protection: mechanical temperature upper limit protection switch, software temperature upper limit protection, to ensure the safe and stable operation of the test.
High precision measurement and control system: Adopt high performance temperature sensor and advanced capacitance grid type digital micrometer for accurate measurement of small changes in the specimen, adopt advanced PID algorithm and full photoelectric isolation phase adjustment module for temperature control to ensure that the temperature rise rate error is less than 0.5℃.
The specimen supports is lift up/down automatically.
Enables to produce the graphs of deflection Vs Time or Temperature.
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 |
