| 摘要 |
PROBLEM TO BE SOLVED: To provide a cutting tool for pulverizing kitchen garbage incorporated into a disposer arranged at a kitchen in an apartment house. SOLUTION: The cutting tool comprises, by mass,≤0.20% C,≤2.0% Si,≤2.0% Mn, 16 to 20% Cr,≤4.0% Ni and≤0.15% N, and, as necessary, comprises 0.4 to 5% Cu, and, in which, the inside has a dual phase structure of a martensitic phase and a ferritic phase, and the surface layer part has a martensite single phase layer. By dispersedly precipitating a Cu rich phase by≥0.2 vol.%, antibacterial properties can be further imparted thereto. COPYRIGHT: (C)2007,JPO&INPIT |
