Abstract: Method for connecting an electrical conductor (17) to a metal bar (11) by bolted connection, whereby a bushing (10) provided with a collar (12) is inserted into, and is by radial expansion fastened in, a hole in the metal bar, a cable lug (16) connected to the electrical conductor is caused to abut against the bushing, and the cable lug is connected to the bushing by means of a bolt (14) disposed in the bushing and forming part of the bolted connection. An expansion device (23) with a threaded portion (26) and an expansion collar (25) is drawn through the bushing in order to expand the latter. A fitting nut (20) with a thread (21) cooperating with the threaded portion (26) is rotated in abutment against the collar (12) of the bushing in order to draw the expansion tool through the bushing.

Abstract: The present invention (FIG. 1) relates to a new formula-controlled method of joining by brazing a connecting piece with a workpiece where the temperature is controlled during all phases of the process before, during and after the brazing temperature phase so that adverse structural changes of the work material (martensite formation) after brazing are eliminated while also minimising energy consumption and process insecurity. Furthermore, a device for the execution of the method.

Abstract: The present invention (FIG. 2) relates to a connecting piece (4) of metal or other electrically conductive material, preferably a cable shoe, and methods of its manufacture, where a brazing block (11) consisting of a front portion (8), a middle portion (9) and an end portion (10) through combination with other parts and processing can form different connecting pieces (4), which are used in a martensite-free brazing process.

Abstract: Method for connecting an electrical conductor (17) to a metal bar (11) by bolted connection, whereby a bushing (10) provided with a collar (12) is inserted into, and is by radial expansion fastened in, a hole in the metal bar, a cable lug (16) connected to the electrical conductor is caused to abut against the bushing, and the cable lug is connected to the bushing by means of a bolt (14) disposed in the bushing and forming part of the bolted connection. An expansion device (23) with a threaded portion (26) and an expansion collar (25) is drawn through the bushing in order to expand the latter. A fitting nut (20) with a thread (21) cooperating with the threaded portion (26) is rotated in abutment against the collar (12) of the bushing in order to draw the expansion tool through the bushing.

Abstract: An apparatus for brazing a connecting piece of electrically conducting material such as metal, to a metal surface by means of a new type of temperature-controlled brazing whereby for certain types of material a brazing is obtained that is free of martensite formation underneath the brazed joint in, for example, railway track and/or pipework. The apparatus has an electrode and processing circuitry by which a voltage applied in electrical circuit with the electrode causes an electric arc to be struck between the electrode and an adjacent workpiece to generate the heat necessary for brazing.

Abstract: A connecting piece of electrically conducting material with a pressed-on brazing clip mounted on a compact plate with a flux material, and a method for producing such a connecting piece.

Abstract: The present invention (FIG. 1) relates to a new method for brazing a connecting piece of electrically conducting material, for example of metal, to a metal surface by means of a new type of temperature-controlled brazing whereby for certain types of material, for example steel, a martensite-free brazing is obtained, i.e. a brazing without deleterious structural changes (martensite formation). A brazing is obtained that is completely free of martensite underneath the brazed joint in for example railway track and/or pipework. The invention also relates to an arrangement for carrying out the said method.

Abstract: The present invention (FIG. 1) relates to a connecting piece (1) of electrically conducting material with a pressed-on soldering clip (4) mounted on a compact plate (5) with a flux material (12), and a method for carrying out the said invention.