Title:
MANUFACTURING METHOD OF FRACTURE SPLIT TYPE CONNECTING ROD
Document Type and Number:
Japanese Patent JP2017101272
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method capable of manufacturing a fracture split type connecting rod excellent n fracture spit property as well as high in proof stress ratio and excellent in machinability.SOLUTION: The manufacturing method of a fracture split type connecting rod is a method for manufacturing the same by molding a steel material containing, by mass%, C: 0.70% or less (excluding 0%), Si: 0.5 to 3%, Mn: 2% or less (excluding 0%), P: 0.2% or less (excluding 0%), S: 0.2% or less (excluding 0%), Cr: 0.2 to 2% and the balance iron with inevitable impurities to a connecting rod shape, then hardening and tempering at a temperature of 370 to 530°C to make a fracture split locations to a tempered martensite structure and then conducting a fracture split process.SELECTED DRAWING: Figure 1
Inventors:
MATSUGASEKO AKIHIRO
SUZUKI KIO
SUZUKI KIO
Application Number:
JP2015234021A
Publication Date:
June 08, 2017
Filing Date:
November 30, 2015
Export Citation:
Assignee:
KOBE STEEL LTD
International Classes:
C21D9/00; C22C38/00; C22C38/60; F16C7/02
Domestic Patent References:
| JP2011047002A | 2011-03-10 | |||
| JP2004286196A | 2004-10-14 | |||
| JP2008088527A | 2008-04-17 | |||
| JP2010270358A | 2010-12-02 |
Attorney, Agent or Firm:
Takuji Yamada
Norihito Yamao
Noriko Cauldron
Masahiro Sasaki
Kyuichi Ueki
Hisahiko Ueki
Tadashi Sugakawa
Hiroaki Ito
Akemi Takeoka
Norihito Yamao
Noriko Cauldron
Masahiro Sasaki
Kyuichi Ueki
Hisahiko Ueki
Tadashi Sugakawa
Hiroaki Ito
Akemi Takeoka