Title:
ROLLING DIE EXCELLENT IN DURABILITY, AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2018134651
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a rolling die having remarkably heightened durability as a tool by keeping abrasion resistance for a long term, while preventing generation of chipping, break or the like.SOLUTION: In a rolling die 2, an atom nitrided layer 14 in which a nitrogen compound layer does not exist on the outermost surface is formed onto a rolling processing surface 6 for performing rolling processing by biting the surface of a member to be rolled, by atom nitriding treatment using plasma containing nitrogen atoms.SELECTED DRAWING: Figure 2
Inventors:
NISHIGAKI KOICHI
SUDA TAKASHI
HARA TAMIO
SUDA TAKASHI
HARA TAMIO
Application Number:
JP2017029678A
Publication Date:
August 30, 2018
Filing Date:
February 21, 2017
Export Citation:
Assignee:
OKAMOTO CO LTD
PLASMA RES AND DEV LAB CO LTD
PLASMA RES AND DEV LAB CO LTD
International Classes:
B21H3/06; C23C8/26
Attorney, Agent or Firm:
Michio Nakajima
Masahiro Nakashima
Masahiro Nakashima