Title:
HEAT TREATMENT OIL
Document Type and Number:
Japanese Patent JP2022157908
Kind Code:
A
Abstract:
To provide a heat treatment oil having excellent thermal stability and with which it is possible to maintain luster for a long period.SOLUTION: A heat treatment oil contains a base oil including a mineral oil (A). The mineral oil (A) has a kinetic viscosity of 100-600 mm2/s at 40°C. The heat treatment oil has a sulfur component content of 0.10-0.20 mass%, and the content of the mineral oil (A) is greater than 0.5 mass% with respect to the total amount of the base oil.SELECTED DRAWING: None
Inventors:
NAKAMURA MASAJI
Application Number:
JP2021062413A
Publication Date:
October 14, 2022
Filing Date:
March 31, 2021
Export Citation:
Assignee:
IDEMITSU KOSAN CO
International Classes:
C21D1/58; C10M101/02
Attorney, Agent or Firm:
Patent Attorney Corporation Otani Patent Office