To provide a metallic material for plastic working which does not generate diffusion of phosphorus in a phosphate film formed with the phosphate film, and has the lubricity and corrosion resistance as excellent as or better than those of the metallic material for plastic working formed with the phosphate film and a method for manufacturing the same, and a surface treating agent for manufacturing the same.
(1) The method for manufacturing the metallic material for plastic working comprises forming the film on the surface of the metallic material by immersing the metallic material for plastic working into an aqueous solution containing one kind or more of a silicate and a borate or a calcium hydroxide and a peroxide and then drying the film. (2) The surface treating agent comprises an aqueous solution of the same composition as that of the above aqueous solution. (3) The metallic material for plastic working comprises a first layer composed of iron, calcium and oxygen on the surface of steel products, and comprises a film composed of borate, calcium hydroxide, and peroxide as a second layer covering the first layer.
COPYRIGHT: (C)2007,JPO&INPIT
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Yamane Shigehiro
| JP8246160A | ||||
| JP9194873A | ||||
| JP200260779A | ||||
| JP5327741B2 |
Makoto Suhara