Title:
METHOD FOR REPAIRING PULVERIZATION ROLLER OR PULVERIZATION TABLE
Document Type and Number:
Japanese Patent JP2018171618
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To remarkably extend a service life of a pulverization roller 10 or a pulverization table 2 of a vertical type mill.SOLUTION: A repairing method for performing hard facing welding to an abrasion part of a pulverization roller 10(including also a pulverization table 2) of a vertical type mill 1. A use limit abrasion amount of the pulverization roller is divided into the plurality n (=2, 3, 4, etc.) times from a surface Dof the abrasion part at a use initial time to a use limit Dthereof, and at each division position Dand each division position D(on a front stage, abrasion and hard facing are repeated to number of times m (1, 2, 3, 4, etc.) until a region near a face at each division position becomes a state such that the region cannot be used (a face to be welded becomes rough) due to thermal effect at the time of hard facing welding. Thus, a service life of the pulverization roller can be remarkably extended.SELECTED DRAWING: Figure 1
Inventors:
USHIGAKI JIN
MORIMOTO HISASHI
YOSHIDA SEISHU
TERAOKA SHINJI
MORIMOTO HISASHI
YOSHIDA SEISHU
TERAOKA SHINJI
Application Number:
JP2018067451A
Publication Date:
November 08, 2018
Filing Date:
March 30, 2018
Export Citation:
Assignee:
KURIMOTO LTD
International Classes:
B02C15/04; B23K9/04; B23K31/00
Attorney, Agent or Firm:
Naoya Kamata
Bunji Kamada
Yaichiro Nakatani
Takayoshi Tagawa
Takashi Shimizu
Bunji Kamada
Yaichiro Nakatani
Takayoshi Tagawa
Takashi Shimizu