Joining steel substrates having surface coating, in a joining area, by removing the coating under use of means for the production of high frequency electromagnetic fields and subsequently connecting the substrates in the joining area

摘要

The method comprises removing a surface coating of steel substrates (1, 2) under use of means for the production of high frequency electromagnetic fields in a joining area (10) and subsequently connecting both steel substrates with one another in the joining area. An induction conductor (3, 4, 5, 6) is used as means for the production of high frequency electromagnetic fields with which high frequency surface near alternating currents are induced in the joining area of the steel substrates. The steel substrate is welded under use of inductive high frequency welding and resistance welding. The method comprises removing a surface coating of steel substrates (1, 2) under use of means for the production of high frequency electromagnetic fields in a joining area (10) and subsequently connecting both steel substrates with one another in the joining area. An induction conductor (3, 4, 5, 6) is used as means for the production of high frequency electromagnetic fields with which high frequency surface near alternating currents are induced in the joining area of the steel substrates. The steel substrate is welded under use of inductive high frequency welding, resistance welding, and arc or laser radiation welding in the joining area. The joining area of the steel substrates is a joining edge or joining surface. The surface coating is removed on both sides in the area of the joining edge and/or surface through the means arranged on both sides of the steel substrates. The steel substrate consists of aluminum-silicon corrosion protective surface coating. The surface coating is strongly heated at melt temperature in the joining area of the steel substrates for evaporating the coating. The steel substrate consists of steel alloy and is moved relative against the means for the production of electromagnetic fields. The steel substrates are band-shaped and joined together directly after removing the surface coating of the steel substrates.