Title:
FERROUS SINTERED METALLIC MACHINE COMPONENT
Document Type and Number:
Japanese Patent JP2014055322
Kind Code:
A
Abstract:
To provide a ferrous sintered metallic machine component that has hardness to some extent and high productivity.
A precursor powder including iron powder, copper powder, and tin powder is compacted to mold a green compact, the green compact is sintered at a 750-900°C temperature range, thereby iron structures are bonded by copper and tin. Sintering is performed at cold temperatures like this, thereby a constriction amount of the green compact by sintering is lessened, thereby required dimensional accuracy can be secured without sintering by aligning the green compact. Therefore, the sintering process does not need to be divided in two as in conventional techniques, and productivity can be raised.
Inventors:
MORI TOSHIHIKO
NAGATA HIROHARU
NAGATA HIROHARU
Application Number:
JP2012200340A
Publication Date:
March 27, 2014
Filing Date:
September 12, 2012
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
C22C38/00; B22F1/105; B22F3/10; C22C33/02
Domestic Patent References:
| JPS5114804A | 1976-02-05 | |||
| JPH0949064A | 1997-02-18 | |||
| JPH0841607A | 1996-02-13 | |||
| JPS4844108A | 1973-06-25 | |||
| JP2008202123A | 2008-09-04 | |||
| JPH0949047A | 1997-02-18 | |||
| JPS5114804A | 1976-02-05 |
Foreign References:
| WO2011122558A1 | 2011-10-06 | |||
| WO2006080554A1 | 2006-08-03 | |||
| WO2011122558A1 | 2011-10-06 | |||
| WO2006080554A1 | 2006-08-03 |
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Yusuke Noguchi
Tsuyoshi Kumano
Yusuke Noguchi