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Verfahren zur Herstellung von Papiermessern

Papiermesser und Verfahren zu dessen Herstellung (A1)
Paper knife and process for its production
 
: Panzer, S.; Reichmann, A.; Schiller, S.

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Frontpage ()

DE 1993-4328961 A: 19930827
DE 1993-4328961 A: 19930827
EP 1994-113408 A: 19940825
DE 4328961 C2: 19951130
EP 640693 A: 19950301
B26D0001
German
Patent, Electronic Publication
Fraunhofer FEP ()

Abstract
Paper knife for the perforation cut for paper-processing machines are disposable knives and are made of tempered and hardened steel in the wear-prone part of the cutting edge or the teeth are hardened using electron or laser radiation so that a much greater hardness is available in this region. There is also a more finely distributed martensite in this region. The process according to the invention is executed in such a way that the wear-prone part of the paper knife is treated by applying an electron or laser beam in a short-term hardening process with self-quenching.

: http://publica.fraunhofer.de/documents/PX-39339.html