Heat treating oil composition

C - Chemistry – Metallurgy – 10 – M

Patent

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Details

C10M 169/04 (2006.01) C10M 101/00 (2006.01) C10M 105/72 (2006.01) C10M 135/10 (2006.01)

Patent

CA 2426373

Disclosed is a heat treating oil composition which comprises: (I) a base oil having a sulfur content of 3 to 1,000 ppm and consisting of: (A) at least one member selected from a mineral oil and a synthetic oil, each having a sulfur content of not more than 300 ppm, and (C) at least one member selected from a sulfur and a sulfur compound; and (II) an additive far quenching. The additive may be an alkaline earth metal salt of salicylic acid, sulfonic acid or phenol, for example. The heat treating oil is useful for quenching a metal material at a high oil temperature to obtain treated metal material having improved brightness with minimum distortion.

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