1. Annealing and Pickling Line (APL) for Silicon Steel Strip
  2. Annealing and Pickling Line (APL) for Silicon Steel Strip

Annealing and Pickling Line (APL) for Silicon Steel Strip

The hot rolled strips (NGO and GO) are initially annealed in a continuous process to eliminate brittleness prior to cold rolling and to modify the microstructure. The annealing process is followed by a controlled cooling stage with a cooling rate which may range from 5 to 80 K/s depending on the steel grade required.

Tenova, with its over 40 years of experience, is the only company with the competence and knowledge, of the entire multi-stage thermal process chain, which is required for the production of grain-oriented electrical steel strip.

The hot rolled strips (NGO and GO) are initially annealed in a continuous process to eliminate brittleness prior to cold rolling and to modify the microstructure. The annealing process is followed by a controlled cooling stage with a cooling rate which may range from 5 to 80 K/s depending on the steel grade required. This process is usually carried out in a nitrogen atmosphere to protect the strip surface.

Typical line basic data:

  • Material: GO & NGO hot & cold rolled strip (Si 3.5 %)
  • Yearly capacity: 100 - 400 kt/y
  • Process speed: 40 - 85 m/min

Terminal Equipment and Process Section with specialties like: High turbulence shallow pickling tanks Special multiple cascade rinsing section with controlled acidity for high surface quality Side trimmer with rotating turrets.

  • Value for Money

    Value for Money

    • Key technology for the processing of silicon steel
    • Highest process accuracy and repeatability guarantees stable magnetic properties
  • Reference

    Reference

    • Modern heating technology
    • Heat and energy recovery

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Contact - List

  • Contact Contact Person Position Legal Entity Department Phone Fax E-mail Address
    LOI Thermprocess GmbH
    +49 201 1891 1
    +49 201 1891 321
    loi@tenova.com

    Am Lichtbogen 29

    45141 Essen

    Germany

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