| 摘要 |
<p>1,157,020. Welding by fusion. BOHLER & CO. GEBR. A.G. 31 Aug., 1966 [3 Sept., 1965], No. 38751/66. Heading B3R. [Also in Division C7] A metal surface is coated by fusion with a hard coating consisting, by weight, of The coating source material may have the following forms: (a) wire consisting of an extruded sintered product containing a non- metallic binder such as synthetic resin or waterglass, (b) wire having a core or coating of carbides of Cr, W, Nb, Ta or V, or (c) wire which is fused under a powder containing carbides which is melted by a plasma arc. The wire may be in strip form.</p> |
