Title:
減圧焼入れ用焼入油及び焼入れ方法
Document Type and Number:
Japanese Patent JP4764336
Kind Code:
B2
Abstract:
A quenching oil for reduced pressure quenching which comprises a base oil having a kinematic viscosity at 40° C. of 40 mm2/s or more and a vapor blanket breaking agent; and a method for quenching wherein the quenching oil is used and quenching is carried out while adjusting the pressure on the surface of the oil. The method allows the achievement of cooling characteristics over a wide range from those conventionally achieved by a cold oil to those by a hot oil, by the use of a single quenching oil.
Inventors:
Katsumi Ichitani
Takeishi Makoto
Takeishi Makoto
Application Number:
JP2006510951A
Publication Date:
August 31, 2011
Filing Date:
March 09, 2005
Export Citation:
Assignee:
IDEMITSU KOSAN CO.,LTD.
International Classes:
C21D1/58; C10M101/02; C10M105/06; C10M105/14; C10M105/18; C10M105/32; C10M105/36; C10M107/02; C10M107/08; C10M107/50; C10M143/08; C10M145/14; C10M159/04; C10M169/04; C10M171/00; C10M171/02; C21D1/773; C22F1/16; C10N20/00; C10N20/02; C10N30/00; C10N30/08; C10N40/20
Domestic Patent References:
| JP2001316722A | 2001-11-16 | |||
| JP2001192689A | 2001-07-17 | |||
| JP2002327191A | 2002-11-15 |
Attorney, Agent or Firm:
Tamotsu Otani
Masamichi Tohei
Masamichi Tohei