plastometr1

STD 812 torsion plastometer – Thermoanalyse GmbH

The torsion plastometer allows for determination of plastic properties of materials, taking into account temperature and deformation speed variables, inequality of deformation in a longitudinal and cross section of a sample.

General description

  • possibility of torsion with simultaneous elongation or compression
  • heating method: induction
  • heating and cooling speed: up to 100 K/s
  • atmosphere: vacuum 10-4 mbar, inert gas, air
  • possibility of entering research parameters, such as: sample measurements, sample material, process parameters etc.
  • possibility of generating and editing charts in different configurations, e.g. temperature change over time, charts for strength, deformation, deformation velocity etc.
 

Torsion

Elongation and Compression

Rotational speed

Force during deformation

up to 800 rpm

up to 25 kN

Deformation velocity

up to 50 s –1

up to 1,0 s -1

Actual deformation

up to 10,8

up to 0,7 (compression) and up to 0,4 (elongation)

plastometr4

plastometr2


Torsion plastometer

    A torsion plastometer allows for, among other things, determination of plastic properties of materials, taking into account temperature and deformation speed variables, inequality of deformation in a longitudinal and cross section of a sample. Thanks to that it is possible to develop a standard procedure for determination of plastic characteristics in a hot torsion trial.

    The scope of conducted studies:

  • determination of the relation between flow stress and deformation for variables in a wide range of temperatures and deformation velocities, useful mainly for evaluation of energy and strength parameters for plastic working processes and for simulations of the shaping process with the use of numerical methods
  • determination of the ultimate deformation value for temperature, deformation velocity and stress variables, which allows for setting optimal temperatures for the technological process and comparing plastic properties of materials from separate heats, depending on chemical composition, structure and production conditions, simulation of actual plastic working processes through realization of discontinuous deformation, while taking into account variability of temperature and the way of cooling down.  

    After plastometric research, the samples can be subjected to metallographic research in order to evaluate the structure and the properties of the material after plastic deformation and cooling down in specified conditions, which can be used for the analysis of the phenomena occurring within a material and forms the basis for designing thermoplastic processing.


Laboratory supervisor:  PhD, Eng. Konrad Laber
Phone: +48 343250-662
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.