Title:
【発明の名称】リファイニングディスク用リファイニングエレメント
Document Type and Number:
Japanese Patent JP2003526509
Kind Code:
A
Abstract:
Refining elements for refining discs for disc refiners for the manufacture of mechanical pulp, for example, board pulp, are subjected to hard abrasive wear in acid environment and at high temperature. In order to improve the wear resistance alloys with precipitated carbides are used. A service life improved in comparison with known alloys is obtained with a refining disc with the following analysis in % by weight: 2.96 C, 0.77 Si, 0.82 Mn, 24.2 Cr, 5.16 V, 0.04 Ni, 0.03 Mo, and the remainder Fe and impurities. After casting, the refining segments are hardened and annealed and assume a hardness of 57-63 HRC.
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Inventors:
Gaben, Jan-Orche
Application Number:
JP2001566808A
Publication Date:
September 09, 2003
Filing Date:
February 19, 2001
Export Citation:
Assignee:
Barmet, Huay Verteck, Actie Evorague
International Classes:
B02C7/12; C22C38/22; C22C38/24; C22C38/36; C22C38/44; C22C38/46; C22C38/56; D21B1/14; D21D1/30; (IPC1-7): B02C7/12; D21B1/14; D21D1/30
Attorney, Agent or Firm:
Yoshio Kawaguchi (4 outside)