| 摘要 |
1,134,724. Coating wire with metal; annealing. OY NOKIA A.B. May 30, 1967 [May 31, 1966], No. 24881/67. Headings C7F and C7N. Metal wire 3 is annealed and coated with metal in a continuous process by heating it with an electric current passed through it between pulleys 1 and 2 and leading it through a coating bath 6 between the pulleys. Wire 3 may be of copper, and be passed through pickling and soldering agent basins before entering bath 6, which contains melted tin. Water bath 5 is used to cool the tinned wire 3. Wire 3 may be fed straight from the drawing machine in which it is produced, in which case no pickling and soldering agents are required to induce the tin to adhere to the copper wire. As it emerges from bath 6 surplus tin may be removed by a wiper. |
