Accessories for High-Temperature Testing with AllroundLine Testing Machines

Temperature range

-80°C to +2,000°C

Components

Temperature chambers
Furnaces
Vacuum chambers
Induction heating
Temperature controller
Specimen temperature measuring device
Extensometers
Load strings

Advantages

Precise temperatures
Reliable strain measurement
Secure specimen gripping

Optimally coordinated accessories are the foundation for reliable test results in high-temperature testing

To meet the many standards and customer requirements, ZwickRoell offers a large selection of modular high-temperature components for use with new and pre-owned AllroundLine testing machines, as well as for retrofitting machines from other manufacturers.

ZwickRoell offers complete solutions in a temperature range of -80°C up to +2,000°C for determination of the elastic behavior, resistance, and yield point of high-temperature resistant materials under high heat conditions. Not only the selection of the heating system to be used, but also reliable temperature control with suitable thermocouples, and a high-temperature load string with corresponding extensometer are essential for reliable results in high-temperature testing.

Accessories for high-temperature testing

Heating systems

Different heating systems are available for the various applications and environmental conditions in high-temperature testing. Get an overview of the possible alternatives.

3-zone furnace up to +1,250°C
3-zone furnace up to +1,500°C
Short furnace up to +1,200°C
Chamber for vacuum and inert gas environment up to +2,000°C
Induction heating system up to +2,000°C
Carousel with 3, 4 or 6 individually controllable furnaces
Temperature chamber up to +250°C

Switching and control system

At the center of every high-temperature test lies exact temperature control. The longtime proven temperature controller ensures reproducible, user-independent temperature control along the specimen. The switching and control system meets all requirements of the current international test standards such as DIN EN ISO 204, DIN EN ISO 6892-2, ASTM E139, ASTM E21.

Intelligent control algorithms for standard-compliant specimen temperature without overshooting for temperature stability along the specimen
Empirically determined control parameters for different specimen temperatures are no longer necessary
Automatic controller setting in a temperature range of +200°C to +1,200°C
Temperature tolerance on specimen, max. parallel length 100 mm:
+200°C to +350°C: ± 2K
+350°C to +1,200°C: ± 1K
Digital display of temperatures
Suitable for stand-alone operation and PC operation with testXpert

Specimen temperature measuring device

For exact specimen and furnace temperature control, the use of a suitable specimen temperature measuring device is necessary. Depending on the specimen geometry and the specimen spectrum, fixed or variable measuring devices with different thermal elements (Type K, N, S,...) are used. To ensure constant temperature along the specimen, normally three thermal elements are attached to the surface of the specimen.

Load string for tensile tests

The high-temperature load string consists of:

Pull-rod mounting
Pull rod
Specimen adapter

The high-temperature load string transmits the force from the high-temperature specimen adapters in the furnace to the pull-rod mountings outside the furnace.

Therefore, the pull-rods as well as the specimen adapter must stand up to the particular thermal loads in high-temperature testing. Metallic high-temperature pull-rods are ideal for use up to a max. of +1,200°C and ceramic high-temperature pull-rods up to +1,500°C.

Load string for compression and flexure tests

Compression and flexure tests up to +1,500°C in air are performed with a ceramic load string. The die is typically fixed; the flexure test kit fully articulable to ASTM C1211. With the compression fixture, loads up to approx.10 kN can be applied; the flexure fixture allows loads of approx. 2 kN.

Load string for compression testing with reversal cage

Compression tests can also be performed with a reversal cage. Here the tensile force is converted to compression force through the reversal cage. Compression tests up to +1200°C can be performed in air as well as in vacuum. The benefit of the reversal cage lies in the high stability of the arrangement and low conversion effort from compression to tensile tests.

Extensometers

ZwickRoell offers a comprehensive selection of extensometers with different resolutions, measuring principles, and measurement displacement. A distinction is generally made between contact and non-contact extensometers that are used for measurement of extension, change in width, or strain measurement. The special requirements in high-temperature testing are taken into account with specially designed extensometers.

laserXtens 2-120 HP/TZ
laserXtens 1-32 HP/TZ
Non-contact extensometer

Overview of heating systems for high-temperature testing

3-zone furnace up to +1,250°C

This 3-zone furnace is ideal for high-temperature testing in air up to a temperature of +1,200°C and allows for the use of metallic load strings.

3-zone furnace up to +1,500°C

This 3-zone furnace is optimized for specimen temperatures up to +1,500°C in air and requires the use of a ceramic load string.

Short furnace up to +1,200°C

Short specimens often require short furnaces that are frequently combined with fixed load strings and an alignment fixture for optimal specimen alignment. These are available as 1-, 2-, or 3-zone furnaces.

Chamber for vacuum and inert gas environment up to +2,000°C

With a 3-zone chamber for vacuum and inert gas environments, different tests including tensile, compression, and flexure tests on metals and non-metals such as graphite can be performed at a temperature up to +2,000°C.

Induction heating system up to +2,000°C

Induction heating systems provide the benefit of fast heating and cooling phases. This heating system is especially suitable for high-temperature testing on metallic specimens. With the use of a susceptor, testing of non-metallic specimens is also possible.

Furnace carousel

The use of a carousel with three, four, or six independent furnaces enables high specimen throughput since the specimens can be prepared, and heated and cooled outside of the test frame.

Temperature chamber up to +250°C

To cover a wide temperature range such as from -80°C up to +1,500°C in air in a single testing machine, the use of temperature chambers in combination with high-temperature furnaces is recommended.

We will find the optimal testing solution for your high-temperature application. Please feel free to contact our experts.

We will be happy to discuss your needs.

Downloads

Product information: High-temperature furnace up to 1,250°C PDF 4 MB
- DE
- EN
Product information: Load string for tests up to 1,200°C PDF 1 MB
- DE
- EN
Product information: Load string for tests up to 1,500 °C PDF 1,023 KB
- DE
- EN
Product information: High-temperature extensometer up to 1,500°C PDF 732 KB
- DE
- EN

High Temperature Testing up to +2,000°C