WATER-CONTAINING LUBRICATING FILM AGENT, SURFACE TREATED METALLIC MATERIAL, AND METHOD FOR FORMING WATER CONTAINING-LUBRICATING FILM OF METALLIC MATERIAL

摘要

Provided are a lubricating film agent and technique relating thereto which can reduce industrial waste (environmental preservation) and which can impart excellent lubricity in a water contained state to metallic products with shapes that are difficult to dry completely, such as inner sides of steel pipes, in cases where forced drying is not performed after a lubrication step (room temperature drying, leaving at room temperature). This water-containing lubricating film agent is used for metal plastic working performed in a water contained state of a moisture content of 3 to 50 mass%, the water-containing lubricating film agent characterized in that at least one type of oleophilic lubricating component (A) and/or at least one type of solid lubricant (B) having cleavage are dispersed in water, and in that at least one type of water-soluble lubricating component (C) selected from the group consisting of fatty acid components having 12 to 20 carbon atoms is dissolved in a water phase side in a ratio of (C)/[(A)+(B)]=0.05 to 0.5.