Abstract: A protective coating is formed on a metallic material surface by applying a treating agent comprising water, an alkali silicate, and, optionally, a lubricating component to the surface and drying the treating agent. The coating film thereby formed has excellent anti-galling and rust preventive properties. If a lubricating component is present, the coating film also has excellent self-lubricating properties.

Abstract: The invention provides a method for the inline manufacturing of metal wire rod for use in plastic working with excellent lubricity, thereby providing energy, space and time savings, wherein the surface of metal wire rod cleaned by shot blasting, sand blasting, bending, anodic pickling, and cathodic pickling or the like for 20 seconds or less; contacted with an aqueous, lubricating-coating formation processing liquid containing inorganic salt and at least one kind of lubricant for 5 seconds or less, and then dried immediately to form a lubricant film with a coating weight of 0.5-20 g/m2 on the surface of said metal rod, all in a continuous inline system.

Abstract: A protective coating is formed on a metallic material surface by applying a treating agent comprising water, an alkali silicate, and, optionally, a lubricating component to the surface and drying the treating agent. The coating film thereby formed has excellent anti-galling and rust preventive properties. If a lubricating component is present, the coating film also has excellent self-lubricating properties.