| 摘要 |
PROBLEM TO BE SOLVED: To produce stainless steel combining excellent corrosion resistance, antibacterial properties and durability and still having excellent antibacterial properties even if being subjected to surface working including grinding which is widely used at the present time and to provide a method for producing it. SOLUTION: Stainless steel is incorporated with silver or a silver compd. by 0.001 to 0.30 wt.% expressed in terms of Ag or moreover with 0.001 to 1.0 wt.% V, also, into the steel, a part of the silver compd. is dispersed as silver oxide 0.0005 to 1.1×(wt.% Ag) wt.% expressed in terms of the content of silver oxide, and, furthermore, the surface layer of the stainless steel is infiltrated and stuck, preferably, with silver or copper antibacterial componential particles. Preferably, a soln. contg. antibacterial components is applied on the surface of the stainless steel, and, by pressurizing or rubbing, they are infiltrated and stuck therein. As the antibacterial components, silver or a silver compd. is preferable. Moreover, when stainless molten steel is continuously cast, the pouring rate at the time of continuous casting is preferably controlled to 0.8 to 1.6 m/min.
|
