Cold rolling stand and work roll damage

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

Recommendation

FOMTM – Fibre optical thermal monitoring at CC billet mould

Initial situation: The initial solidification of the molten steel is important for determining the quality of the cast product Rim formation […]

Nanocarbides – Enhancing technological properties of tool steels by cryogenic treatment

Initial Position: Cryogenic treatment – adjunctive treatment in hardening and tempering process to improve wear resistance and toughness of tool […]

SPOTVIEW – Sustainable Processes and Optimized Technologies for Industrially Efficient Water Usage in steel, dairy or pulp and paper industry

Initial situation Water use in steel industry: 1980 million m³ for production of 169 million tons crude steel divided in […]

Quality4.0 – Transparent product quality supervision in the age of Industry 4.0

Situation: Progressive digitalization is changing the game of many industrial sectors. One of the main aspects of todays’ Industry 4.0 […]