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HVT series of HDT/VICAT testing machine is mainly used to determine temperature of deflection under load and Vicat softening temperature of thermoplastic plastics, pipes and fittings.
Heat deflection temperature (HDT) (ISO 75, ASTM D648) indicates the relative behavior of different types of material under load at elevated temperatures. It is determined for materials such as thermoplastics, hard rubber and duroplastic laminates.
Vicat softening temperature (VST) (ISO 306, ASTM D1525) provides a value for the temperature at which a thermoplastic material begins to soften rapidly. This temperature is determined using a needle-shaped indenter with a round cross-sectional area of 1 mm.
The heat distortion temperature is determined by the following test procedure outlined in ASTM D648. The test specimen is loaded in three-point bending in the edgewise direction. Heat distortion temperature This material test assesses the dimensional stability of plastics as a function of temperature. It determines the temperature at which a specified deflection occurs in a specimen positioned on bearings at either end under a defined, concentric load when the temperature is increased at a uniform rate.
Feature of HVT304:
Large LCD display, floor type structure, motorized lifting racket, built-in micro printer;
Test Procedure (HDT Heat deflection temperature test):
The bars are placed under the deflection measuring device. A load of 0.45 MPa or 1.80 MPa is placed on each specimen. The specimens are then lowered into a silicone oil bath where the temperature is raised at 2° C per minute until they deflect 0.25 mm for ASTM, 0.32 mm for ISO flatwise, and 0.34 mm for ISO edgewise.
Test Procedure (VST VICAT softening point test):
A test specimen is placed in the testing apparatus so that the penetrating needle rests on its surface at least 1 mm from the edge. A load of 10N or 50N is applied to the specimen. The specimen is then lowered into an oil bath at 23 degrees C. The bath is raised at a rate of 50° or 120° C per hour until the needle penetrates 1 mm.
Other name:
HDT tester; HDT Vicat Tester; Heat deflection vicat softening temperature Vicat; HDT/VICAT softening temperature Tester; hdt vicat heat deformation point tester; Heat Distortion Temperature Tester
Heating speed120±10℃/h, （12℃±1℃／6min ）50±5℃/h, （5℃±0.5℃／6min）
Temperature resolution 0.01℃
Deformation resolution 0.001mm
Temperature accuracy ±0.5℃
Deformation measuring 0~2mm
Load range 0.73N~49.03N
Test stations 3 sets
Vicat Loading capacity GA=10N±0.2N, GB=50N±1NHDT
HVT series of HDT/VICAT testing machine is mainly used to determine temperature of deflection under load and Vicat softening temperature of thermoplastic plastics, pipes and fittings.
Heat deflection temperature (HDT) (ISO 75, ASTM D648) indicates the relative behavior of different types of material under load at elevated temperatures. It is determined for materials such as thermoplastics, hard rubber and duroplastic laminates.
Vicat softening temperature (VST) (ISO 306, ASTM D1525) provides a value for the temperature at which a thermoplastic material begins to soften rapidly. This temperature is determined using a needle-shaped indenter with a round cross-sectional area of 1 mm.
The heat distortion temperature is determined by the following test procedure outlined in ASTM D648. The test specimen is loaded in three-point bending in the edgewise direction. Heat distortion temperature This material test assesses the dimensional stability of plastics as a function of temperature. It determines the temperature at which a specified deflection occurs in a specimen positioned on bearings at either end under a defined, concentric load when the temperature is increased at a uniform rate.
Feature of HVT304:
Large LCD display, floor type structure, motorized lifting racket, built-in micro printer;
Test Procedure (HDT Heat deflection temperature test):
The bars are placed under the deflection measuring device. A load of 0.45 MPa or 1.80 MPa is placed on each specimen. The specimens are then lowered into a silicone oil bath where the temperature is raised at 2° C per minute until they deflect 0.25 mm for ASTM, 0.32 mm for ISO flatwise, and 0.34 mm for ISO edgewise.
Test Procedure (VST VICAT softening point test):
A test specimen is placed in the testing apparatus so that the penetrating needle rests on its surface at least 1 mm from the edge. A load of 10N or 50N is applied to the specimen. The specimen is then lowered into an oil bath at 23 degrees C. The bath is raised at a rate of 50° or 120° C per hour until the needle penetrates 1 mm.
Other name:
HDT tester; HDT Vicat Tester; Heat deflection vicat softening temperature Vicat; HDT/VICAT softening temperature Tester; hdt vicat heat deformation point tester; Heat Distortion Temperature Tester
Heating speed120±10℃/h, （12℃±1℃／6min ）50±5℃/h, （5℃±0.5℃／6min）
Temperature resolution 0.01℃
Deformation resolution 0.001mm
Temperature accuracy ±0.5℃
Deformation measuring 0~2mm
Load range 0.73N~49.03N
Test stations 3 sets
Vicat Loading capacity GA=10N±0.2N, GB=50N±1NHDT