TPi May 2019

Products & developments

Induction-annealed stainless steel tubes for demanding tasks

American Automotive Industry Action Group (AIAG). Schoeller Werk’s range of products includes TIG- and laser-welded stainless steel pipes, drawn precision pipes in straight bespoke or fixed lengths, and annular pipes. The company develops its own plant technology and tailors its product range to the needs of its customers and the market. Around 90mn metres of stainless steel piping are made at the company’s machine park every year. Customers can obtain technical con- sultation, application-specific product development and pipe manufacture, quality testing and custom logistics ser- vices, from a single source. Schoeller Werk GmbH & Co KG – Germany www.schoellerwerk.de

its welding lines. The systems can be extended in future to include further processing steps. Induction-annealed tubes are used in various branches of industry, in the automotivesector and in themanufacture of industrial supply systems, among others. The new 330 kW induction annealing unit reaches operating temperatures of up to 1,200°C. As a result of the heating process in inductive annealing, the material characteristics of the tube are effectively optimised. After the welding, Schoeller Werk ensures homogeneity throughout the material. The firm sets high standards in production and material procurement to achieve consistently high process quality. In recognition of this, the company was recently awarded the CQI-9 Certificate, a heat treatment guideline, by the North

Schoeller Werk, a specialist for longitu- dinally welded stainless steel tubes, is expanding its in-line induction anneal- ing capacities for laser welding, as it aims to satisfy rising demand for induc- tion-annealed stainless steel tubes for supply lines in the industrial and auto- motive sector. In order to cover the increasing demand in the long term, Schoeller Werk has added a newly developed ‘Induction Annealing’ function module to an existing laser welding line. The firm possesses 105 welding machines in total. These now include 11 laser lines and 36 TIG lines for the in-line induction annealing of tubes after welding. The expansion was made possible by the modular system developed by Schoeller Werk for the construction of

Schoeller Werk has augmented an existing laser welding line with an induction-annealing module

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TUBE PRODUCTS INTERNATIONAL May 2019

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