| 摘要 |
<p>It is described a grounding terminal for temporary fastening a grounding conductor to a construction to be welded. The grounding terminal uses permanent magnets, example given of neodymium (Nd-Fe-B-35) to fasten the terminal to the construction. A welder that uses the grounding terminal can by one grip easily scrape the contact surface of the construction free of paint, rust and oxide scale and thereafter fasten the grounding terminal to and unfasten it from the construction. Fastening and unfastening is based on relocation of the permanent magnets in such a way that an open and a closed magnetic loop respectively, are created.</p> |
