Title:
HEAT TREATMENT OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2016/132860
Kind Code:
A1
Abstract:
Provided is a heat treatment oil composition capable, when heat-treating a metal material by quenching, etc., of maintaining cooling performance on the same level as JIS K2242:2012 Type 2 Number 1 oil while reducing variation in cooling performance for each part during batch quenching and capable of limiting changes over time in cooling performance when said heat treatment is performed repeatedly. The heat treatment oil composition is characterized in that: the composition comprises (A) a base oil, and (B) at least one resin selected from petroleum resins and/or petroleum resin derivatives; the specified number of seconds obtained from a cooling curve determined in accordance with the JIS K2242:2012 cooling performance test method is 1.00 second or less; and the 300°C number of seconds, which is the cooling time from 800°C to 300°C on the cooling curve, is 6.00 seconds to 14.50 seconds.
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Inventors:
HATTORI HIDEAKI (JP)
ICHITANI KATSUMI (JP)
ICHITANI KATSUMI (JP)
Application Number:
PCT/JP2016/052632
Publication Date:
August 25, 2016
Filing Date:
January 29, 2016
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C21D1/58; C10M143/00; C10M159/00; C10N20/02; C10N30/00; C10N40/16
Foreign References:
| JP2013194262A | 2013-09-30 | |||
| JP2009029950A | 2009-02-12 | |||
| JP2008121094A | 2008-05-29 | |||
| JP2014152347A | 2014-08-25 |
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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