公开(公告)号：US20230119812A1

公开(公告)日：2023-04-20

申请号：US17759873

申请日：2021-02-03

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Takahito SUGIURA

IPC: C21D1/58

Abstract: A quench oils composition containing a sulfur compound capable of improving the brightness of a metal material after a heat treatment, such as quenching, while preventing the sulfur content from being excessively increased. This is achieved by a quench oils composition containing one or more base oil selected from a mineral oil, a synthetic oil, and a vegetable oil, and one or more sulfur-containing aromatic compound selected from a particular sulfide compound and a particular sulfone compound.

公开(公告)号：US20240344157A1

公开(公告)日：2024-10-17

申请号：US18290844

申请日：2022-07-29

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Takahito SUGIURA

IPC: C21D1/58

CPC classification number: C21D1/58

Abstract: A heat treating oil composition containing one or more of a base oil (A) selected from the group consisting of a mineral oil (A1), a synthetic oil (A2) and a vegetable oil (A3), a sulfur compound (B), and a carboxylic acid-based compound (C) being one or more selected from the group consisting of a compound having at least one carboxy group, and an anhydride thereof.

公开(公告)号：US20240294818A1

公开(公告)日：2024-09-05

申请号：US18569305

申请日：2022-06-13

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Takahito SUGIURA

IPC: C09K5/10 ,  C21D1/58

CPC classification number: C09K5/10 ,  C21D1/58

Abstract: A problem is to provide a heat treating oil composition containing a sulfur compound that is excellent in brightness of a metal material after a heat treatment, such as quenching, and in storage stability. The problem is solved by a heat treating oil composition containing one or more kinds of base oils (A) selected from the group consisting of a mineral oil (A1), a synthetic oil (A2), and a vegetable oil (A3), and a sulfur compound (B), the sulfur compound (B) containing one or more kinds selected from the group consisting of a particular sulfide compound (B1), a particular sulfide compound (B2), and a particular thiazole compound (B3).