| 摘要 |
A process for producing a metal wire rod for plastic working, characterized in that it comprises the steps of cleaning the surface of a wire rod of a metal such as steel, stainless steel or aluminum for 20 seconds or less, by the us e of at least one cleaning method selected from the group consisting of shot blasting, sand blasting, bending, anodic pickling and cathodic pickling, contacting the resulting wire rod, for 5 seconds or less, with an aqueous treatment liquid for forming a lubricating coating film comprising at least one inorganic salt selected from the group consisting of a phosphate, a sulfate, a borate, a silicate, a molybdate and a tungstate, and at least one lubricating agent selected from the group consisting of a metal soap, a wax, polytetrafluoroethylene, molyblenum disulfide and a graphite, and drying the rod immediately after the cleaning, and the steps are carried out continuous ly in an in-line system, to form a lubricating coating film on the surface of t he wire rod in an amount of 0.5 to 20 g/m2. The process allows the production o f a metal material for plastic working having excellent lubricating characteristics in a short time.
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