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HVT302 Heat Deflection Temperature ASTM D648, ISO 75

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?.

 

Feature of HVT302:
Digital display, economical type, 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

ModelHVT302
(XRW-300B)
StructureFloor
Sample racket liftingMotorized
Control & DisplayMicrocontroller
Digital display
PrinterMicro-Printer
Temperature rangeAmbient temperature to 300℃
Heating speed120±10℃/h, (12℃±1℃/6min )
50±5℃/h,  (5℃±0.5℃/6min)
Temperature resolution0.1℃
Deformation resolution0.01mm
Temperature accuracy±0.5℃
Deformation measuring0~2mm
Load range0.73N~49.03N
Test stations3 sets
Vicat Loading capacityGA=10N±0.2N, GB=50N±1N
HDT testMethod A: USE FIBRE STRESS 1.80Mpa
Method B: USE FIBRE STRESS 0.45Mpa
Method C: USE FIBRE STRESS 8.00Mpa
Specimen rack span60mm ~ 120mm continuous adjusting
Power4Kw
Electrical supply220V, 50HZ/110V, 60HZ
Heating mediummethyl silicon oil or transformer oil
Other Model:
 
1, HVT301 Digital display, economical type, table type structure, manual lifting racket, built-in micro printer;
2, HVT302 Digital display, economical type, floor type structure, motorized lifting racket, built-in micro printer;
3, HVT303 Large LCD display, table type structure, manual lifting racket, built-in micro printer;
4, HVT304 Large LCD display, floor type structure, motorized lifting racket, built-in micro printer;
5, HVT305 Computer controlled tester, table type structure, manual lifting racket, analysis temperature-time-displacement curve, print test report ( test data, curve etc.,).
6, HVT306 Computer controlled tester, floor type structure, motorized lifting racket, analysis temperature-time-displacement curve, print test report ( test data, curve etc.,).



Comparison Table:   

ModelHVT301HVT302HVT303HVT304HVT305HVT306
StructureTableFloorTableFloorTableFloor
Sample racket liftingManualMotorizedManualMotorizedManualMotorized
DisplayMicrocontroller
Digital display
Microcontroller
Digital display
Microcontroller
LCD display
Microcontroller
LCD display
ComputerComputer
PrinterMicro-printerMicro-printerMicro-printerMicro-printerA4 paper PrinterA4 paper Printer
Temp. resolution0.1℃0.1℃0.01℃0.01℃0.01℃0.01℃
Deformation
resolution
0.01mm0.01mm0.001mm0.001mm0.001mm0.001mm



ItemQuantity
Frame1 set
Electrical control cabinet1 set
Sample supporter racket3 pcs
Weight (2000g,500g,100g,50g)3 pcs for each
Weight (1000g, 200g)6 pcs for each
Weight (40g, in one box)3 set
Vicat needle indenter3 pcs
HDT pressing head3 pcs
Displacement sensor3 pcs
Platinum resistor1 pc
Electric wire1 set
Connection wire1 set
Accessories containing case1 pc
Computer (for HVT405, 406)1 set
Professional software (English version) (for HVT405, 406)1 set
Documents (Manual, packing list, certificate)
 





ISO 75
Plastics -- Determination of temperature of deflection under load

ISO 306
Plastics -- Thermoplastic materials -- Determination of Vicat softening temperature (VST)

ISO 2507
Thermoplastics pipes and fittings -- Vicat softening temperature

ASTM D648
Standard Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position

ASTM D1525
Standard Test Method for Vicat Softening Temperature of Plastics

ASTM D5944, ASTM D5945. GB/T 8802, GB/T 1633, GB/T 1634

      
HDT test sample installation
  
Heat Deflection test operation video
  
VICAT / VST test sample installation video
  
Vicat Softening Point / VST test operation video
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