1. Continuous Annealing and Pre-Treatment Lines

Continuous Annealing and Pre-Treatment Lines

Tenova Continuous Annealing and Pre-Treatment Lines cover a strip range from 700 to 2,800 mm wide and 0,2 to 6,0 mm thick. At process speeds between 60 and 140 m/min these plants have capacities ranging from 40,000 to 120,000 tons per year.

The flexibility of these lines allows the use of various chemicals by setting the related process parameters and diversifying the application methods and moreover enables the customers to comply with the ever stricter requirements of automobile OEMs as regards the coatings in very specific areas. The company is thus in position to satisfy the current and even future conditions for the certification of strip processing lines for automotive applications.

 

Thanks to its rich experience Tenova is also capable to offer innovative solutions for colour coating, tension levelling and finishing lines for aluminium.

In the last years the non-ferrous metal sector has become substantially more important for Tenova thanks to a number of new orders for Continuous Annealing and Pre-Treatment lines (CAPL), from noted aluminium producers. Tenova's expertise in this field is based not least on the experience and know-how gained in the steel sector that is in the design and manufacture of continuous strip processing lines including chemical processing with special surface-coating equipment.

Tenova's chemical technology is a state-of-the-art process for CAPL for automotive, aerospace and structural market demands. The flexibility of these lines allows the use of various chemicals by setting the related process parameters and diversifying the application methods and moreover enables the customers to comply with the ever stricter requirements of automobile OEMs as regards the coatings in very specific areas. The company is thus in position to satisfy the current and even future conditions for the certification of strip processing lines for automotive applications.

A complete system approach in the selection of treatment and chemicals involves the complete process steps included in CAPL. Tenova offers modern highly efficient machines for each process step: pre-cleaning, tension levelling, skin passing, acid etching, chemical pre-treatment, side trimming, oiling and wax lubricant application. Besides Tenova CAPL are equipped with a floating strip furnace followed by a quenching unit. Tenova CAPL cover a strip range from 700 to 2,800 mm wide and 0,2 to 6,0 mm thick. At process speeds between 60 and 140 m/min these plants have capacities ranging from 40,000 to 120,000 tons per year.

Automotive end users request now strip values in strict specific ranges. Tenova is capable to design and manufacture tailor-made solutions that satisfy today's and tomorrow's automotive market demands.

Latest improvements:

  • Pre-cleaning with alkali or high pressure demi water to remove rolling oils and fines from the upstream cold rolling mill process
  • Acid or alkali etching to deoxidize the strip surface layer
  • Tension Levelling to guarantee strip perfect flatness even after the thermal process
  • Fiber laser source welding machine
  • Robust and well proven automation
  • Low effluent treatment impact; no chemicals required and no treatment of exhaust fumes
  • No stains on final products
  • Value for Money

    Value for Money

    • Lower operational costs than with two separate lines
    • Lower investment costs (smaller waste treatment plants, etc.)
  • Efficiency

    Efficiency

    • Extensive experience gained by installation of 10 similar lines allows us to ensure short commissioning time
    • Robust & Reliable equipment
  • Service

    Service

    • Technological know-how transfer and operational training
  • Reference

    Reference

    • 10 installations in 7 countries
  • Environment

    Environment

    • Compliance with the most restrictive environmental and safety regulations worldwide
    • Low effluent treatment impact; no chemicals required and no treatment of exhaust fumes

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