publication . Patent . 1997

Partiell oberflaechengehaertete Riffelwalze und Verfahren zum Oberflaechenhaerten

Paul, H.; Krumphold, R.; Pollack, D.; Burck, P.; Kraegelin, L.; Neubert, P.;
Open Access German
  • Published: 01 Jan 1997
  • Country: Germany
Abstract
DE 3711450 A UPAB: 19970307 Worn top surfaces of grooved rolls are renewed by producing a hard area (2) having a max. thickness of 0.4 mm and a width (3) determined by the tangent to the grooved surface from a plane cutting across the top of the groove equal to 45 deg.. The wear experienced by the roller corresponds to the shape of the hardened area therefore any soft annealing prior to machining is avoided. The energy beam used for hardening is pref. a CO2 laser and the ridge area is axially radiated such that the opening angle of the beam cone (7) is min. 25 deg. and the spot diameter is adjusted to be at least twice the width of the hardened zone (3). USE/ADV...
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