Title:
METHOD FOR MANUFACTURING HIGH-STRENGTH CARBURIZED COMPONENT
Document Type and Number:
Japanese Patent JP2010007117
Kind Code:
A
Abstract:
To manufacture a carburized component having excellent impact strength and bending strength that can not be expected until now by applying vacuum-carburization-quenching and repeating direct-quenching one or more times to make crystal grains fine.
A steel containing, by mass, 0.10-0.45% C, 0.05-2.0% Si, 0.10-2.0% Mn, 0.030% P, 0.20% S, 0.3-3.0% Cr, 0.30% Cu, 0.001-0.1% Al, 0.01% N, 0.05-0.5% Ti and the balance Fe with inevitable impurities, is used, and is formed into the component-shape with a machining or a forging, and then the vacuum-carburization-quenching is performed and thereafter the direct-quenching is applied one or more times, and then component is tempered to manufacture the carburized component.
Inventors:
NISHIKAWA MOTOHIRO
Application Number:
JP2008165994A
Publication Date:
January 14, 2010
Filing Date:
June 25, 2008
Export Citation:
Assignee:
SANYO SPECIAL STEEL CO LTD
International Classes:
C21D9/32; B21J5/00; C21D1/06; C21D9/28; C22C38/00; C22C38/60; C23C8/22
Domestic Patent References:
| JP2003166016A | 2003-06-13 | |||
| JP2003166016A | 2003-06-13 | |||
| JP2003034843A | 2003-02-07 | |||
| JP2007291486A | 2007-11-08 | |||
| JP2006161141A | 2006-06-22 |
Other References:
JPN6013032193; 西川元裕: 'Ｔｉ，Ｂ添加肌焼き鋼の機械的性質に及ぼす結晶粒径の影響' 材料とプロセス Ｖｏｌ．１９， Ｎｏ．３, 2006, ｐ．４８２
JPN6013032195; 西川元裕: '肌焼き鋼の繰返し焼入れによる結晶粒微細化の検討' 材料とプロセス Ｖｏｌ．１９， Ｎｏ．６, 2006, ｐ．１２２０
JPN6013032195; 西川元裕: '肌焼き鋼の繰返し焼入れによる結晶粒微細化の検討' 材料とプロセス Ｖｏｌ．１９， Ｎｏ．６, 2006, ｐ．１２２０
Attorney, Agent or Firm:
Kenji Yokoi
Yokoi Satoshi
Yokoi Satoshi