Online Brochure - Rolltext

Rolltex

Electro Discharge Texturing of Mill Rolls

Electro Discharge Texturing of Mill Rolls

Automobile companies and other users of steel and non ferrous sheet, now demand surface textures which cannot be achieved using rolls textured by traditional processes. Electro Discharge Texturing is a fast, reliable process providing outstanding control of surface textures with an improved working environment and lower operating costs.

Productivity

  • Fast texturing times, uses all electrodes to texture the roll surface.
  • Production capability in excess of 1000 rolls/month.

Flexible Engineering

The customer chooses

  • number of electrodes/machine capacity.
  • Purpose built fully automated Rolltex machines with Roll Loader if required.
  • Retrofit Rolltex equipment onto an existing grinder or lathe.

Safety Standards

  • The Rolltex system complies with stringent health and safety standards.

Flexible Technology

  • Provides a wide range of textures, Ra 0.5 to 13!!m easily achieved.
  • A selectable PC surface profile and bearing ratio.
  • Low values of waviness (Wa) achieved on the rolled strip.

Uniformity

  • Maintains specified textures independent of roll hardness or quality.
  • Repeatability within the roll and roll to roll, < 4% variation in Roughness (Ra) and Peak Count (PC).

Benefits

Typical Rolltex benefits achieved

  • 50% lower roll texturing costs.
  • > 100% increase in roll life.
  • Reduced dirt in the mill.
  • Reduced incidence of "stickers" after annealing.
  • High quality textured strip surface.

Proven Technology

Rolltex machines of various sizes and specific- ations operate continuously to provide textured rolls for Tandem, Temper, CVC, Sendzimir mills and speciality strip producers.

Rolltex textured rolls

Rolltex textured rolls

Machine for narrow strip and Senzimir rolls

Machine for narrow strip and Senzimir rolls

Rolltex textured rolls have allowed steel plants throughout the world to satisfy the most stringent requir- ements of their customers for coated and uncoated strip qualities.

Advanced electronic control provides independent selection of surface roughness (Ra) and Peak Count (PC) values over the full range of roll textures. Waviness (Wa) values are maintained well within the limits specified by major auto companies.