Keramchemie Gmbh

Sms Schloemann-siemag Aktiengesellschaft

Bwg Bergwerk-und Walzwerk-maschinenbau Gmbh

Bodo Block

Andreas Noe

Rolf Noe

Friedrich Wilhelm Hollmann

Horst Gartner

Heinz Wilhelm Berger

Ralf Waldmann

Jorg Neumann

Rafael Rituper

Frank Barhold

A method of producing a cold-rolled strip from a stainless, ferretic or austenitic high-grade steel or a titanium alloy, wherein the strip which has been wound into a coil and has been manufactured by a hot-rolling or casting process is subjected in one pass to the steps of unwinding the coil, mechanically descaling the strip if required, subsequently chemically and/or electrochemically first or black pickling of the strip, then cold-rolling the strip to finished dimensions, degreasing the strip as required, annealing the strip, finish-pickling the strip and, if necessary, passivating, dressing and stretcher-leveling the strip. The pickling step is carried out in a pickling solution which contains hydrochloric acid, sulfuric acid and/or nitric acid.

Method of producing a cold-rolled strip in one pass

A method operating a pickling installation for pickling rolled strips comprises several consecutively disposed pickling basins filled with a pickling agent containing acid, through which the strip 4 is passed. A pickling agent containing acid is injected through injection nozzles disposed at least on the sides of the basin. A flexible adaptation to the respective pickling task with the aim of a reduced pickling time period is made possible if the nozzle injections on the sides are actuated variably. The pickling installation is provided for this purpose on both sides of the plurality of the basins, with injection nozzles above and below the strip traveling plane and upstream or downstream of base slide pads located in the basin.

Pickling installation and method for operating this pickling installation

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Rosrath, Germany

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