HEROLL – Prevention of hydrogen embrittlement of cold rolling rolls by improved work roll material and lubricant configuration

Situation:

  • Increasing number of cold rolling work rolls failures, induced through hydrogen.
  • Damages and/or failures can also cause dangerous explosions of the work roll bodies (spalling; safety aspect).
  • One reason is the increased mechanical loads during processing.
  • The difficulties will even increase as the production rates of materials are rising and the protective plating materials are supposed to be banned.

Solution:

  • Evaluation of process data and work roll history of selected cold rolling processes.
  • Description / Simulation of failure mechanism.
  • Development of suitable tribological testing device(s) for material and lubricant testing.
  • Targeted lubricant and material development.
  • Intensive tribological testing and identification of potential critical control parameter / suitable control devices.
  • Industrial implementation.

Operational benefit:

  • Increase of service capability of cold rolling work rolls.
  • Decrease / prevention of work roll material failure.
  • Clarification of failure mechanism and sources.
  • Optimisation of work roll material and lubricant configuration.

This project is funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union. Neither the European Union nor the granting authority can be held responsible for them.

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