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Two New Zwick Roell Multi-station Creep Testing Systems for UL TTC

Two New Zwick Roell Multi-station Creep Testing Systems for UL TTC

  • Tuesday, 26th January 2016
  • Reading time: about 2 minutes

The UL Thermoplastics Testing Center (UL TTC) in Krefeld, Germany has recently expanded its creep tensile testing capacity by investing in two Kappa Multi-station creep testing systems by Zwick.

According to Zwick, each system is equipped with five testing stations which can apply dynamic or static loads of up to 10kN to the specimen and can be controlled individually without influencing each other. To cover the varied testing requirements, the five testing stations have been equipped with load cells of 10kN, 2.5kN and 500N nominal force. Both systems also possess a temperature chamber to enable creep testing in a temperature range from 23°C to 300°C.

Zwick claims that, in both systems, precise, standard-compliant testing is facilitated by the provision of a videoXtens HP optical extension measurement system (Class 0.5 to ISO 9513) featuring a high-resolution camera plus a precision lens for each test axis. This measures specimen elongation while exerting no mechanical influence on the specimen. To ensure precise force and strain measurement the sensors are thermally and mechanically decoupled from the relevant sources of interference.

Special screw-grips with automatic re-tightening guarantee correct, consistent application of the gripping force to the specimen throughout the test.

Both creep testing systems are controlled by the testXpert II Creep Test master test program, enabling creep testing (e.g. to ISO 899-1 and ISO 899-2) under different loads and temperatures. The test results are used to assess the deformation behaviour and strength characteristics of components which are subjected to static tensile loadings.


Image provided by Zwick

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