Non-phosphorus chemical conversion treatment agent and treatment liquid for plastic working, chemical conversion film, and metal material with chemical conversion film

摘要

A non-phosphorus chemical conversion treatment agent and treatment liquid for plastic working are provided, with reduced environmental impact, which are able to form films that are excellent in lubricity and corrosion resistance after plastic working by achieving large film thicknesses even in a system containing a salt of molybdic acid as its main constituent. An exemplary non-phosphorus chemical conversion treatment agent for plastic working is an agent containing a molybdic acid component (A), an acid component (B), and an aqueous medium (C), which is characterized in that the (B) comprises at least an organic acid component (B1) having at least one group selected from a carboxyl group and a phenolic hydroxyl group.