B - Operations – Transporting – 23 – H
Patent
B - Operations, Transporting
23
H
B23H 5/08 (2006.01) B24B 1/00 (2006.01) B24B 29/06 (2006.01)
Patent
CA 2285169
An object of the present invention is to provide a method for mirror process of external surface of a long sized metal by which the external surface of a long sized metal can be mirror-processed in high precision and in high efficiency without a surface defect or so that stable dimension accuracy such as a roundness and improvement of yield in production can be obtained. The method comprises the steps of cramping both ends of a long sized metal such as a round tube or a round bar, charging the long sized metal in the positive electricity and rotating the metal, moving the long sized metal in the axial direction to pass through an electrolytic integrated polishing apparatus for processing the external surface of a long sized metal into a mirror surface. The electrolytic integrated polishing apparatus includes a plurality of grindstones pressed onto the long sized metal from the opposite directions or from outside to the rotation axis radially at a constant pressure, and negative electrodes disposed so that each of the grindstones is disposed between the electrodes in the circumferential direction. The electrolytic integrated polishing apparatus feeds an electrolyte to the external surface of the long sized metal, and integrates abrasion of the long sized metal by grindstones and concentration elution by an electrolyte for mirror process of the external surface of the long sized metal.
Akagi Kazuo
Akiyoshi Tomohisa
Nakashima Yoshimitu
Kirby Eades Gale Baker
Nissin Unyu Kogyo Co. Ltd.
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