Title:
WELDING ROTOR AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2013245383
Kind Code:
A
Abstract:
To solve such problem that a heat treatment for recovering toughness, reducing a residual stress and restraining stress corrosion-cracking causes decrease in tensile strength, and cannot secure the necessary strength to a wheel part.
After a heat treatment to a local surface in welding parts 3-1 to 3-3 in a welding rotor 1, a heat treatment after welding is applied and then, the residual stress is lowered while securing the strength of joint parts 3-1 to 3-3 and the wheel part 2, and further, the stress corrosion-cracking is made to be difficult to generate.
Inventors:
ABE YUMIKO
NAKATOMI ATSUO
NAKATOMI ATSUO
Application Number:
JP2012120826A
Publication Date:
December 09, 2013
Filing Date:
May 28, 2012
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
C21D9/50; B23K9/00; B23K20/12; B23K26/00; B23K26/14; B23K31/00; C21D1/18; C21D1/34; C21D1/40; C21D1/52; C21D9/28; C23C4/06; C23C26/00; F01D5/02; F01D25/00
Attorney, Agent or Firm:
Toshio Kanata
Hiroshi Shimura
Takimoto Torazo
Hiroshi Shimura
Takimoto Torazo
Previous Patent: METHOD FOR REMOVING POWDER ADHERING TO LUMP ORE
Next Patent: HOT INSTALLATION METHOD OF BOTTOM BLOWING TUYERE IN CONVERTER
Next Patent: HOT INSTALLATION METHOD OF BOTTOM BLOWING TUYERE IN CONVERTER