| 摘要 |
<p>The present invention provides an improvement in an exothermic cutting electrode of the type having a mass of metal such as a plurality of elongated rods or wires, helically wound wire or solid mass of metal with a central aperture adapted to function as an electrode. The improvement comprises, in combination, the electrode being coated with a mixture containing an oxidizing material, arc stabilizing material and a binder wherein the coating is provided with a plurality of generally parallel longitudinal portions of reduced thickness extending substantially the length of the coating. The exothermic cutting electrode is particularly suitable for land applications such as cutting through structural shapes, rock, concrete and the like. The coatings according to the present invention minimize problems of stub-out common with prior art devices and increased cutting rates are achieved. Safety aspects of the electrode are also improved.</p> |
