| 摘要 |
The electrode (1) has a core (2) made of pure crystalline aluminum and/or crystalline aluminum alloys greater than 50 percent by weight. A coating layer (3) encompasses the core and comprises copper, zinc, and/or a copper-zinc alloy of 50 percent by weight. Proportion of surface area of the core relative to total cross-sectional area of the electrode is in the range of 60 to 95 percent along entire length of the electrode. The coating layer has multiple sub-layers arranged over each other. |
