| 摘要 |
1,101,279. Arc heating electrodes. SIEMENSSCHUCKERTWERKE A.G. 8 Dec., 1965, [8 Dec., 1964], No. 52146/65. Heading H5H. Arc erosion of a metallic electrode is reduced by consuming a carbon rod near the electrode, whereby a mono-molecular layer of carbon is believed to be deposited thereon. The carbon rod may be connected as an auxiliary cathode or anode which is located adjacent a watercooled cathode or anode respectively (Figs. 1 and 3, not shown). Alternatively, the carbon rod may have no potential applied to it. As shown, four such carbon rods 12 are slideably supported in a ring 11, which may be of insulating material, surrounding an arc 3 between copper electrodes 1 and 2. |
