Mannesmann Aktiengesellschaft

Sms Siemag Aktiengesellschaft

Didier Ofu Engineering Gmbh

Sms Seimag Ag

Ernst Windhaus

Peter Meyer

Fritz-Peter Pleschiutschnigg

Jürgen Seidel

Giovanni Arvedi

Christoph Klein

Werner Rahmfeld

Juergen Seidel

Markus Reifferscheid

Giovanni Gosio

Heinrich Patalon

Frank Benfer

Jürgen Müller

Ulrich Siegers

Klaus Bruckner

Horst Wolfgang Mathejka

Juergen Mueller

Peter Holz, Deceased

Peter Erwig

Bernard Seiler

The invention relates to a method of flying changing of working rolls in continuous casting and rolling installations and hot strip rolling mills, in particular in continuous hot strip rolling mills, wherein for exchange of working rolls by opening a rolling stand, those are disengaged from a to be rolled hot strip. According to the invention a regulated strip tension that can substitute the tension of the open rolling stand, is applied to the to-be-rolled hot strip with at least one hold-down roller that is introduced in a rolling line.

Method for the flying changing of working rolls in continuous casting and rolling installations and hot strip rolling mills using a hold-down roller

A method of fabricating a steel strip () including a) providing a functional relationship in a machine controller () between a slab casting speed (v) or the mass flow as a product of casting speed and strip thickness or as a product of strip speed and strip thickness and the strip temperature (t) downstream of the last rolling stand () for a different number (n) of active rolling stands () and different final thicknesses, b) determining or specifying the casting speed (v) or the mass flow (v&#xd7;H) and feeding the determined value into the machine controller (), and c) determining the optimum number of active rolling stands () and the final thicknesses and thickness reductions which can be rolled with them in the rolling train using the functional profiles.

Method for the production of a strip made of steel

The invention is directed to an oven installation as intermediate storage between the non-mandrel type coiling device for the strip-shaped slab located downstream of a thin-slab casting installation and its uncoiling device corresponding to the rolling mill downstream. In order to provide an oven installation between the coiling device and uncoiling device for the cast slab which enables a reheating of the bundles, if necessary, in addition to favorable heating conditions for the cast material and which provides a large storage capacity upstream of the rolling mill, the invention proposes the use of a circulating pallet system having pallet cars (9) which can be transported cyclically through the oven (11) and can be displaced transversely (8, 13) at the input and output of the oven and guided back (17) laterally alongside the oven, and the platforms of the pallet cars (9), which are made from refractory material and whose end sides directly abut at one another, form the hearth bottom of the oven (11) and are provided with saddles produced from material with poor thermal conductivity for receiving the slab bundles.

Storage oven for thin slab casting

A method and system for continuously producing a flat steel product from flat stock produced by the arcuate continuous casting method with a horizontal direction of emergence are disclosed. In one form of the invention, flat stock is shaped after solidification of a strand in a first shaping stage at temperatures exceeding about 1100.degree. C. The stock is then inductively reheated to a temperature of about 1100.degree. C. with approximate temperature equalization of an entire cross-section of the flat stock. The flat stock is additionally shaped in at least one additional shaping stage with rolling speeds in accordance with the stock's accompanying reduction in thickness per pass.

Method and system for continuously producing flat steel product by the

Growing community of inventors

Duisburg, Germany

Ernst Windhaus