| abstract |
PROBLEM TO BE SOLVED: To obtain an aqueous treatment liquid containing no phosphorus by a simple method of adhering to a material to be coated by a dipping method or a spray method and then drying, and to apply a soap on a phosphate film. The present invention provides a steel wire or a steel wire rod excellent in lubricity, which is uniformly coated without adhesion unevenness by a film having excellent lubricity and seizure resistance equal to or higher than the composite film obtained. SOLUTION: Potassium salt of boric acid, average particle size is 1μ m or less polyethylene wax and synthetic hectorite [Si 8 (Mg a Li b ) O 20 (OH) c F 4-c ] -x Na + x (0 <a ≦ 6, 0 <b ≦ 6, 4 <a + b <8, 0 ≦ c ≦ 4, a steel wire or a steel wire excellent in lubricity, having a lubricating film formed on the surface thereof, the essential component of which is x = 12-2a-b). |