Invention Grant
- Patent Title: Mixed power for powder metallurgy, green compact thereof, and sintered body
- Patent Title (中): 粉末冶金的混合动力,其生坯和烧结体
-
Application No.: US12087856Application Date: 2007-03-13
-
Publication No.: US07645317B2Publication Date: 2010-01-12
- Inventor: Takayasu Fujiura , Yasuko Yakou , Satoshi Nishida , Yuuji Taniguchi , Tetsuya Goto
- Applicant: Takayasu Fujiura , Yasuko Yakou , Satoshi Nishida , Yuuji Taniguchi , Tetsuya Goto
- Applicant Address: JP Hyogo
- Assignee: Kabushiki Kaisha Kobe Seiko Sho
- Current Assignee: Kabushiki Kaisha Kobe Seiko Sho
- Current Assignee Address: JP Hyogo
- Agency: Stites & Harbison PLLC
- Agent Juan Carlos A. Marquez, Esq.
- Priority: JP2006-069731 20060314; JP2006-069732 20060314
- International Application: PCT/JP2007/054991 WO 20070313
- International Announcement: WO2007/119346 WO 20071025
- Main IPC: B22F1/00
- IPC: B22F1/00 ; B22F3/00

Abstract:
The present invention relates to a mixed powder for powder metallurgy containing an iron-base powder and a carbon supply component, in which the carbon supply component contains a graphite powder and a carbon black, and in which a mixing ratio of the graphite powder to the carbon black is in the range of 25 to 85 parts by weight to 75 to 15 parts by weight; and a mixed powder for powder metallurgy containing an iron-base powder and a carbon supply component, in which the carbon supply component contains, as a main component, a carbon black having a dibutyl phthalate absorption of 60 mL/100 g or less and a nitrogen absorption specific surface area of 50 m2/g or less.The mixed powder for powder metallurgy of the invention is less in the dust generation and segregation of the carbon supply component. Additionally, when the mixed powder for powder metallurgy of the invention is used, a green compact and a sintered body excellent in the mechanical property can be produced.
Public/Granted literature
- US20090007725A1 Mixed Powder For Powder Metallurgy, Green Compact Thereof, and Sintered Body Public/Granted day:2009-01-08
Information query