Title:
QUENCHING OIL FOR REDUCED PRESSURE QUENCHING AND METHOD FOR QUENCHING
Document Type and Number:
WIPO Patent Application WO/2005/087955
Kind Code:
A1
Abstract:
A quenching oil for reduced pressure quenching which comprises a base oil having a kinematic viscosity at 40&ring C of 40 mm2/s or more and a vapor film breaking agent; and a method for quenching wherein the quenching oil is used and quenching is carried out while adjusting the pressure of the space above 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:
ICHITANI KATSUMI (JP)
TAKEISHI MAKOTO (JP)
TAKEISHI MAKOTO (JP)
Application Number:
PCT/JP2005/004053
Publication Date:
September 22, 2005
Filing Date:
March 09, 2005
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
ICHITANI KATSUMI (JP)
TAKEISHI MAKOTO (JP)
ICHITANI KATSUMI (JP)
TAKEISHI MAKOTO (JP)
International Classes:
C10M101/02; C10M159/04; C10M169/04; C10M171/00; C10M171/02; C21D1/58; C22F1/16; C10N20/00; C10N20/02; C10N30/00; C10N40/20; (IPC1-7): C21D1/58; C10M101/02; C10M159/04; C10M169/04; C10M171/00; C10M171/02; C10N20/00; C10N20/02; C10N30/00; C10N40/20
Foreign References:
| JP2002327191A | 2002-11-15 | |||
| JP2001316722A | 2001-11-16 | |||
| JP2001192689A | 2001-07-17 |
Attorney, Agent or Firm:
Ohtani, Tamotsu (Bridgestone Toranomon Bldg. 6F., 25-2,
Toranomon 3-chom, Minato-ku Tokyo 01, JP)
Download PDF: