Thyssen Stahl Ag

Linde Aktiengesellschaft

Thyssenkrupp Steel Europe Ag

Thyssenkrupp Steel Ag

Outokumpu Nirosta Gmbh

Hans-Joachim Heiler

Fred Jindra

Marc Blumenau

Rudolf Schoenenberg

Wilhelm Warnecke

Ola Ritzén

Jennifer Schulz

Hans-Joachim Krautschick

Dirk Czupryna

Heinrich Schmitz

Wulf Dechene

Ronald Jabs

Manfred Splitt

Heinrich Pannenbecker

Wilhelm D&uuml;rr

Rainhard Paul

Werner Högner

Herbert Eichelkraut

G&uuml;nther H&ouml;belheinrich

Paul Rainhard

Herbert Eichelkrauth

Rudolf SCHÖNENBERG

Peter Schmidt

Marc Dr-Ing Blumenau

Christopher Dr-Ing Gusek

Rudolf Schönenberg

Hans-Joachim Drrernat Krautschick

Ola Ritzen

Werner Hoegner

The invention provides a process for the heat treatment of steel products, in particular of steel strips or sheets, in which the product is brought from a starting temperature to a target temperature in a booster zone having at least one burner; the burner is operated with a fuel, in particular a fuel gas, and an oxygen-containing gas which contains more than 21% oxygen; and the product is brought into direct contact with the flame generated by the burner, the air ratio &#x3bb; within the flame being set as a function of the starting temperature and/or the target temperature.

Process for the heat treatment of steel strips

A method for hot dip coating a flat stainless steel product with more than 5 wt. % Cr with a protective metallic coating by: heating the flat steel product under an oxygen-free heating atmosphere to 100&#xb0; C.-600&#xb0; C. within 1-30 seconds; continuing heating to a holding temperature of 750&#xb0; C.-950&#xb0; C., by heating to 550&#xb0; C.-800&#xb0; C. under an inert or reducing atmosphere, holding within this temperature window for 1 to 15 seconds under an oxidizing atmosphere, and continuing heating under an inert or reducing atmosphere, until the holding temperature is reached; holding at the holding temperature for 10-120 seconds under a reducing atmosphere; and passing the flat steel product through a nozzle area under an inert or reducing atmosphere at 430&#xb0;-780&#xb0; C. and into a molten bath in which the flat steel product is coated with the metallic coating.

Method for hot dip coating a flat steel product

A thin sheet is coated by hot dip galvanization with a zinc based alloy comprising 3.5% to 15% by weight of aluminum. Immediately after solidification of the coating, the thin sheet is heated for 2 to 10 seconds to a temperature 20 to 100&deg; C. above the melting point of the coating. The thin sheet is then cooled to room temperature.

Method of heat-treating a thin sheet coated with ZnAL by hot dip galvanization

Device for blowing off coating material in the coating of metal bands

Growing community of inventors

Moers, Germany

Hans-Joachim Heiler