| 摘要 |
PURPOSE:To prolong the life by forming a metal plating phase from an amorphous alloy, and thereby enhancing anti-corrosiveness of an extra-thin grinder element and preventing corrosion due to scratches. CONSTITUTION:When electrolytic plating is to be made, a flat base 12 is connected to the neg. pole of power supply while a positive pole plate 13 to the positive pole of power supply. Current is supplied while the plating liquid M is agitated. After an abrasive grains layer 14 of a specific thickness is educed on the flat base 12, it is defoliated from the base 12, to obtain a ring-shaped extra-thin grinder element through cleaning and shaping. At this time, the metal plating phase of the grinder element is formed from an amorphous alloy. This alloy shall preferably be of Ni-base, Co-base, and Ni-CO-base, and may contain one or more of such elements as P, B, Mo, W, Re, wherein the rate of content shall preferably be approx. 1-30 wt.%. Formation of plating phase in this manner will increase anti-corrosiveness, which ensures prevention of corrosion due to scratches even when an acid grinding liquid with carbonic acid gas dissolved is used.
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