Lubricant composition for hot forming
AssigneeSumitomo Metal Industries, Ltd.
InventorsKenichi Sasaki, Sumio Iida, Shizuo Mori, Kazuo Tanaka
Life of this patent
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Abstract
The present invention provides a lubricant composition for hot forming which makes it possible to provide lubricity at 80° C. or more without being peeled or washed by the roll cooling water, and which is easily washed under 40° C. without having water resistance. The lubricant composition for hot forming of the present invention comprises: a solid lubricant from 10 to 40% by mass; water-dispersible synthetic resin from 5 to 20% by mass; inorganic acid amine salt from 0.5 to 5% by mass; and water from 45 to 80% by mass.
Claims12
A lubricant composition for hot forming comprising:
- solid lubricant from 10 to 40% by mass;
- water-dispersible synthetic resin from 5 to 20% by mass;
- inorganic acid amine salt from 0.5 to 5% by mass, the inorganic acid of said inorganic acid amine salt being selected from boric acid, molybdenum acid, or tungsten acid;
- and water from 45 to 80% by mass, for 100% by mass of the total mass of the lubricant composition,
- wherein said water-dispersible synthetic resin is a resin obtained by polymerization with the following a first to a fourth ingredients,
- a first ingredient:
- main monomer from 85 to 99.7% by mass,
- a second ingredient:
- monomer having functioning group from 0.1 to 7% by mass,
- a third ingredient:
- cross-linking monomer from 0 to 5% by mass,
- a fourth ingredient:
- co-polymeric surfactant from 2.1 to 7% by mass, for 100% by mass of the total mass of said first to fourth ingredients,
- said main monomer is two or more monomers selected from methacrylic ester or acrylic ester, and
- solubility of said monomer in the water is 1% or less.
A lubricant composition for hot forming comprising:
- solid lubricant from 10 to 40% by mass;
- water-dispersible synthetic resin from 5 to 20% by mass;
- inorganic acid amine salt from 0.5 to 5% by mass, the inorganic acid of said inorganic acid amine salt being selected from boric acid;
- molybdenum acid, or tungsten acid;
- and water from 45 to 80% by mass, for 100% by mass of the total mass of the lubricant composition,
- wherein said water-dispersible synthetic resin is a resin obtained by polymerization with the following a first to a fourth ingredient,
- a first ingredient:
- main monomer from 88 to 97.4% by mass,
- a second ingredient:
- monomer having functioning group from 0.2 to 5.5% by mass,
- a third ingredient:
- cross-linking monomer from 0 to 3% by mass,
- a fourth ingredient:
- co-polymeric surfactant from 2.4 to 4.8% by mass, for 100% by mass of the total mass of said first to fourth ingredients,
- said main monomer is two or more monomers selected from methacrylic ester or acrylic ester, and
- solubility of said monomer in the water is 1% or less.
Dependencies are inferred from the claim text.