US 8,263,534 B2 · Anti-seizure agent for hot steel working

Abstract

An anti-seizure agent for hot steel working that exhibits excellent wettability and surface film-adherability comprises: an inorganic component (first component); sodium hydroxide (second component); water-soluble resins and/or water-soluble surfactants (third component); and water. With the mass of the sum of the first component, the second component, and the third component as 100 mass %, the anti-seizure agent contains: 96.5 mass % or more and 99.98 mass % or less of the first component; 0.01 mass % or more and 2.0 mass % or less of the second component; and 0.01 mass % or more and 1.5 mass % or less of the third component, and the inorganic component is one or more selected from a group consisting of Al2O3, SiO2, CaO, B2O3, K2O, and Na2O. A coating layer formed after application solidly adheres to the steel and does not come off in the environment of both cold and hot working.

Claims4

Dependent claims

An anti-seizure agent for hot steel working comprising:

an inorganic component as a first component;
sodium hydroxide as a second component;
water-soluble resins and/or water-soluble surfactants as a third component;
and water,
wherein, to the mass of the sum of said first component, said second component, and said third component as 100 mass %, said anti-seizure agent contains:
96.5 mass % or more and 99.98 mass % or less of said first component;
0.01 mass % or more and 2.0 mass % or less of said second component;
and 0.01 mass % or more and 1.5 mass % or less of said third component, and
to the total mass of said inorganic component as 100 mass %, said inorganic component contains:
30 mass % or more and 70 mass % or less of Al2O3, 35 mass % or more and 80 mass % or less of SiO2, up to 1.0 mass % of CaO, 0.05% or more and 2.0 mass % or less of B2O3, up to 0.5 mass % of K2O, and 0.02% or more and 1.0 mass % or less of Na2O.

7 more elements

Dependencies are inferred from the claim text.

Anti-seizure agent for hot steel working

Life of this patent

Anti-seizure agent for hot steel working

Life of this patent

Abstract

Claims4