Properceive procedure

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The proper process - also known as the casting wheel process in its further developed form - is a special metallurgical manufacturing technique that makes it possible to manufacture thin copper , brass and aluminum strands with a diameter in the millimeter range. The wires are used for cable spinning, armature windings , current carrying lines and many other purposes.

Before the introduction of the proper process, wires of all diameters could only be produced by rolling semi-finished products into narrow strands and then "wire drawing" through finer openings in drawing dies made of tungsten carbide with each stitch . Very fine wires are drawn through diamond.

A further development of the proper process is the casting wheel process, which in its principle represents a variant of permanent mold casting and is used for the production of steel wire. The liquid metal is continuously fed into a gap that is given by the cooled casting wheel and a steel strip that also cools down (quenching), which has the function of a continuous casting mold . The strand produced with this technique at a speed of several meters per minute is rolled out while it is still warm and wound up after cooling. In terms of casting technology, there is a similarity to the strip casting process for aluminum.

literature

  • Ernst Brunhuber, Stephan Hasse: Foundry Lexicon . 17th edition, Schiele & Schön, Berlin 1997, ISBN 3-7949-0606-3 .
  • Ernst Brunhuber: Light metal and heavy metal permanent mold casting. Schiele & Schön, Berlin 1954.
  • Erhard Herrmann: Manual of the continuous casting. Aluminum Verlag, 1958.
  • G. Oehler: The sheet metal and its test. Springer Verlag, Berlin / Heidelberg 1953.