Thermal Testing Instruments

CEAST - HDT & VICAT

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HDT/VICAT TESTING

Why?

Thermal Testing on Plastics

To characterize the material at

high temperatures

HDT Test Vicat Test

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HDT/VICAT TESTING

Vicat standards HDT standards

ISO 306, ASTM D 1525 and equivalent ISO 75, ASTM D 648, DIN 53461 and equivalent

Vicat softening temperature (VST)

The Vicat softening temperature is the temperature at which a

standard indenter penetrates 1mm into the surface of a plastic

test specimen, under a constant load, when the temperature is

raised at a uniform rate.

A distinction is drawn between:

Method A = 10 N load,

Method B = 50 N load,

and rates of increase in temperature from 50°C/h or 120 °C/h

Heat deflection temperature (HDT)

The temperature at which a sample subject to a three

point bending under load occurs a specified deflection,

while the temperature is raised at uniform rate (120 °C/h)

A distinction is drawn between three different methods:

HDT Method A: Flexural stress s = 1.8 N/mm² = const.,

HDT Method B: Flexural stress s = 0.45 N/mm² = const.,

HDT Method C: Flexural stress s = 8.0 N/mm² = const.,

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WHAT IS HDT TEST?

• HDT = HEAT DEFLECTION TEMPERATURE

TEMPERATURE OF DEFLECTION UNDER LOAD

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WHAT ARE THE HDT TEST STANDARDS?

ISO 75-1 (plus -2 and -3)

ASTM D648

• Geometry + span between support: 64mm-100/101,6 mm

• Stress (1,8 – 0,45 – 8 MPa) (1,82 – 0,455)

• Temperature ramp (120°C/h) (120 °C/h)

• Deflection (function of thickness) (0,25 mm)

Flatwise Position

Edgewise Position

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HDT TEST RESULTS

Typical graph from a test: deformation vs temperature (or time).

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WHAT IS THE VICAT TEST?

• VICAT = Temperature at which a thermoplastic starts to soften quickly

A VICAT test station

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WHAT ARE THE VICAT TEST STANDARDS?

ISO 306

ASTM D1525

• Geometry penetration of 1 mm

• Force (10N for method A or 50N for method B)

• Temperature rate (50°C/h or 120°C/h)

• Geometry of the indenter (1 mm2) – circular cross section

• Results always refer to A50 or B50 or A120 or B120

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VICAT TEST RESULTS

Typical graph from a test: deformation vs time (or temperature).

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DIFFERENCE BETWEEN HDT AND VICAT

HDT Station

VICAT Station

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HDT-3 & HDT-6 : test station

One station for both HDT and

Vicat :

• only the head is changed to

switch from HDT to Vicat (pieces 12 & 13)

• the station is calibrated in

house and thermal compensation

due to station thermal expansion

is already taken into account (all CEAST test stations are having

thermal expansion correction)

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HDT AND VICAT INSTRUMENTS

Traditional oil systems

HDT 3 Vicat HDT 6 Vicat

HDT Vicat Auto and Autoplus

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Why should we cool the unit ?

At the end of the test, we need to cool down the oil

bath to be able to restart another test

• either we cool down using tap water circulation

• or we connect to a chiller (faster and saving water)

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Limits of traditional systems

• Temperature limitations (< 300 C)

Not safe at high temperature (fire hazard, pollution, …)

Variation of homogeneity depending on grades

Can not be used for testing the new families of materials (PEEK,

PEI, highly reinforced grades, tailored nanocomposites, ecc…)

• Oil needs to be handled and replaced

Physical properties are different after a high number of cycles

Environment-unfriendly (1 kg is able to cover a water surface of

1000 m2)

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HDT AND VICAT INSTRUMENTS

THE EVOLUTION – NO OIL

Traditional Apparatus:

Silicone oil bath

Aluminium oxide

fluidised bed

(HDT & Vicat)

up to 300 °C

up to 500 °C

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HDT AND VICAT INSTRUMENTS

THE EVOLUTION – NO OIL

HDT Vicat 500 ALOXIDE

HDT/Vicat Machine

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THE HDT VICAT ALOXIDE

3 stations

Fluidized bed method (pending ISO 75 & 306)

Automatic weights applying

Up to 500°C

Aluminium

oxide powder

SAFE : NO OIL

EVAPORATION !

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HDT VICAT ALOXIDE - TEST RESULTS

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VISUALTHERM SOFTWARE

• Visualization of test results on Test Execution window

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VISUALTHERM SOFTWARE

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Maximum Test End Temperature Expected?

Heating media oil (≤ 300°C) Heating media non-oil (≥ 300°C)

Vicat acc. ISO 306,

ASTM D 1525, DIN 53460,

BSI 2782, MET 120 C,

NT T 51-021, UNE 53118

HDT acc. ISO 75,

ASTM D 648, DIN 53461,

BSI 2782, MET 121 C,

NT T 51-005, UNE 53075

Vicat acc. ISO 306,

ASTM D 1525, DIN 53460,

BSI 2782, MET 120 C,

NT T 51-021, UNE 53118

HDT acc. ISO 75,

ASTM D 648, DIN 53461,

BSI 2782, MET 121 C,

NT T 51-005, UNE 53075

HDT 500 Vicat

7310.000

HDT 3 Vicat

6911.000

HDT 6 Vicat

6921.000

HDT Vicat Auto

6970.000

HDT Vicat Auto plus

6971.000

How to choose the instrument model?

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How to choose the instrument model?

Maximum Test End Temperature Expected?

Heating media oil (≤ 300°C) Heating media non-oil (≥ 300°C)

HDT 3 Vicat 6911.000

Vicat acc. ISO 306,

ASTM D 1525, DIN 53460,

BSI 2782, MET 120 C,

NT T 51-021, UNE 53118

HDT Vicat Auto

6970.000

HDT 6 Vicat 6921.000

HDT Vicat Auto plus

6971.000

HDT acc. ISO 75,

ASTM D 648, DIN 53461,

BSI 2782, MET 121 C,

NT T 51-005, UNE 53075

HDT Vicat 500 Alox 7310.000

Vicat acc. ISO 306,

ASTM D 1525, DIN 53460,

BSI 2782, MET 120 C,

NT T 51-021, UNE 53118

HDT acc. ISO 75,

ASTM D 648, DIN 53461,

BSI 2782, MET 121 C,

NT T 51-005, UNE 53075

HDT 3 Vicat 6911.000

HDT Vicat Auto

6970.000

HDT 6 Vicat 6921.000

HDT Vicat Auto plus

6971.000

HDT Vicat 500 Alox 7310.000

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How to configure HDT 3 Vicat & HDT 6 Vicat?

HDT 6 Vicat (6921.000)

Vicat 3 stations

with LVDT and PT100

included

HDT 3 stations

with LVDT and PT100

included

HDT 3 Vicat (6911.000)

Option for 60 Hz

6911.016 Option for 60 Hz

6911.016

3 x Vicat testing heads

6505.077

3 x HDT testing heads

6505.078

3 x Certificate HDT

testing heads

0080.002

3 x Certificate for Vicat

testing heads

0080.001

1 x head positioning

tool

6505.218

3 x set of binary

weights

6921.900

3 x set of 2 Vicat

standard weights

6921.100

3 x Certificate for

binary weights

0080.005

3 x Certificate for

Vicat weights

0080.006

Vicat 6 stations

with LVDT and PT100

included

HDT 6 stations

with LVDT and PT100

included

Option for 60 Hz

6911.016 Option for 60 Hz

6911.016

6 x Vicat testing heads

6505.077

6 x HDT testing heads

6505.078

6 x Certificate HDT

testing heads

0080.002

6 x Certificate for Vicat

testing heads

0080.001

1 x head positioning

tool

6505.218

6 x set of binary

weights

6921.900

6 x set of 2 Vicat

standard weights

6921.100

6 x Certificate for

binary weights

0080.005

6 x Certificate for

Vicat weights

0080.006

3 Number of test stations 6

Silicone Oil (20 kg vessel)

High temperature 210H 100cs (Working range 130 – 280°C; max. 280°C) 0800.920

Medium-high temperature 100cs (Working range 130 – 200°C; max. 200°C) 0800.413

Medium-low temperature 50cs (Working range up to 150°C; max. 180°C) 0800.418

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How to configure HDT Vicat Auto & Auto Plus?

HDT Vicat Auto plus (6971.000)

Vicat 6 stations

with LVDT and PT100

included

HDT 6 stations

with LVDT and PT100

included

HDT Vicat Auto (6970.000)

Option for 60 Hz

6921.016 Option for 60 Hz

6921.016

6 x Vicat testing heads

6505.077

6 x HDT testing heads

6505.078

6 x Certificate HDT

testing heads

0080.002

6 x Certificate for Vicat

testing heads

0080.001

1 x head positioning

tool

6660.174

6 x set of binary

weights

6860.450

6 x set of 2 Vicat

standard weights

6860.019

6 x Certificate for

binary weights

0080.010

3 x Certificate for

Vicat weights

0080.011

Silicone Oil (20 kg vessel)

High temperature 210H 100cs (Working range 130 – 280°C; max. 280°C) 0800.920

Medium-high temperature 100cs (Working range 130 – 200°C; max. 200°C) 0800.413

Medium-low temperature 50cs (Working range up to 150°C; max. 180°C) 0800.418

Vicat 6 stations

with LVDT and PT100

included

HDT 6 stations

with LVDT and PT100

included

Option for 60 Hz

6921.016 Option for 60 Hz

6921.016

6 x Vicat testing heads

6505.077

6 x HDT testing heads

6505.078

6 x Certificate HDT

testing heads

0080.002

6 x Certificate for Vicat

testing heads

0080.001

1 x head positioning

tool

6860.174

6 x set of binary

weights

6860.450

6 x set of 2 Vicat

standard weights

6860.019

6 x Certificate for

binary weights

0080.010

6 x Certificate for

Vicat weights

0080.011

Automatic command of Nitrogen inlet

NO YES

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How to configure HDT/Vicat Aloxide

Vicat 3 stations

with LVDT and PT100

included

HDT 3 stations

with LVDT and PT100

included

HDT 500 Vicat 7310.000

Option for 60 Hz

6911.016 Option for 60 Hz

6911.016

3 x Vicat testing heads

6505.077

3 x HDT testing heads

6505.078

3 x Certificate HDT

testing heads

0080.002

3 x Certificate for Vicat

testing heads

0080.001

1 x head positioning

tool

7310.010

3 x set of binary

weights

6860.450

3 x set of 2 Vicat

standard weights

6860.019

3 x Certificate for

binary weights

0080.010

3 x Certificate for

Vicat weights

0080.011

Special heating sand (16 kg)

0600.211

Configuration of HDT Vicat 500 Alox

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THANK YOU