Patent ID: 8656748

Claim:
The lubricant for hot-rolling tools consists of an oxide-based laminar compound, a boric acid compound, graphite, a dispersant, and water, wherein the oxide-based laminar compound, the boric acid compound, and the graphite are dispersed and dissolved in the water, the blending proportion of the oxide-based laminar compound to the boric acid compound is 10:90 to 70:30 in mass ratio, and the content of graphite is 1.0 to 4.5%, and the composition of the lubricant further consisting of, in mass %, mica: 10 to 30% as the oxide-based laminar compound, boric acid: 10 to 30% as the boric acid compound, and graphite: 1.0 to 4.5%, the balance being water containing said dispersant.