| 摘要 |
1,183,316. Soldering. TRIPLEX SAFETY GLASS CO. Ltd. 5 June, 1967 [11 June, 1966], No. 26126/66. Heading B3R. In securing a feed conductor for electric current to heating wires suitable for incorporation in a laminated panel, the wires are placed on an even surface, the feed conductor, which comprises a metal strip coated with solder, is placed across the wires and the feed conductor is heated by high frequency induction to melt or soften the solder. Tungsten wires 10 of diameter 0À0005 inch are laid on a sheet of glass 11 forming part of a transparent panel, e.g. for a windscreen of a motor vehicle or aircraft and are sprayed with a solution of resin in chloroform and a solder coated copper strip 12 of thickness 0-003 inch is laid across the wires so that it forms arches over the wires and lies against the glass sheet between the wires. An induction coil 13 mounted on a carriage 14 is moved along the strip to heat the strip and soft heat resisting, e.g., silicone rubber rollers 15 on the carriage press on the strip and assist in causing the solder to flow over the wires 10. When the solder is cooled it surrounds the wires which are embedded in it. An upper sheet of glass and an interlayer sheet are added to form the panel. In a modification after the strip has been laid on the wires on one sheet of glass, an interlayer is placed on them and an upper sheet of glass is placed on the interlayer. The assembly is then heated and subjected to pressure and the induction coil employed is mounted on a handle to be manipulated by an operator along the underside of the lower sheet of glass. The coil may be coated with a material having a low coefficient of friction to be slid along the glass. The wires and feed conductor may be joined together on one surface and then removed and placed elsewhere. The wires and feed conductor may be used in non-transparent panels. |
