Lubricating oil composition for rolling with round die

摘要

Provided is a lubricating oil composition for round die rolling, which is obtained by blending a base oil with: (A) 0.5 to 40 mass % of a monoester having 13 to 48 carbon atoms (a-1) and/or 0.5 to 30 mass % of a fatty dicarboxylate having 13 to 34 carbon atoms (a-2); (B) 0.01 to 10 mass % of a thiadiazole compound; (C) 0.01 to 15 mass % of a thiophosphite; and (D) 0.01 to 5 mass % of a triazole compound. The lubricating oil composition for round die rolling shows excellent processing performance without using any chlorine-based compound, and is able to improve lubricity in a bearing to lengthen the life of the bearing.

主权项

1. A lubricating oil composition for round die rolling obtained by blending a base oil with:
(A) 5 to 20 mass % of butyl stearate; (B) 0.5 to 3 mass % of a thiadiazole compound; (C) 0.1 to 5 mass % of a thiophosphite; (D) 0.1 to 0.5 mass % of a triazole compound; and (E) 3 to 5 mass % of calcium sulfonate, wherein the concentrations of (A), (B), (C), (D), and (E) are relative to the lubricating oil composition as a whole.