Sms Schloemann-siemag Aktiengesellschaft

Schloemann-siemag Aktiengesellschaft

Claus G Schlanzke

Hugo Feldmann

Hugo Beerens

Hubert Muller

Gerhard Berz

Dieter Nobis

Hans J Braun

Hans Kirchhoff

Theodor Gipperich

Siegfried Kusel

Herbert Muller

Ulrich Svejovsky

The process of our invention heats a plurality of partially finished products extruded in an extrusion unit or changed in a transforming unit as a preparation for introduction into subsequent transformation or processing units. In extruding and/or transforming or heating the heat applied to at least one partially finished product length group is transferred during intermediate transport of the partially finished product length group and/or during storage by heat transfer with other partially finished product length groups. The heat transfer is caused by radiation, convention and/or direct contact. An apparatus for performing the process according to our invention comprising a thermal insulating chamber provided with an air flow and air feed devices and if necessary an auxiliary heating unit is also provided.

Process for heating a semifinished product produced by continuous

A star-shaped array of channeled rolls in a rolling mill for rolling bar stock has the rolls pressed together with a pressing force exceeding the rolling force by a prestressing force sufficient to cause frustoconical flanks of the rolls to forceably press against one another. This stabilizes the rolls and also permits a fine adjustment of the diameter of the passage defined between them.

Apparatus for rolling bar stock

A pair of roll grooves defining a rolling passage for the bar stock in respective rolls having abutting or bearing portions which are undercut to increase elasticity and are separated from the grooves by recesses. The force with which the rolls are pressed against one another far exceeds the rolling force.

Small bundles of elongated profile elements that arrive generally regularly at an intake station wherein the elements are first displaced in a transport direction generally perpendicular to their elongation direction from the intake station to a pickup station. There they are arrested in a pair of groups with the elements closely spaced in their respective groups and the groups widely spaced in the transport direction. The pair of spaced groups is then picked up without substantially changing its spacings and the pair of spaced groups is deposited in a takeoff station while further pairs of spaced groups are formed in the pickup station. These further pairs are then picked up and deposited on top of the respective groups in the takeoff station to form a pair of stacks each constituting a bundle. For nesting the elements it is possible to invert every other pair of spaced groups before depositing same in the takeoff station.

Stacking profile elements in nested groups

Rolled stock running out of a rolling mill is parted into lengths suitable for the cooling bed. Rolled stock cross sections of various sizes are retarded both at approach speeds of more than approximately 20 m/sec and slower, alongside the cooling bed in an approach roller feed bed and then transversely conveyed over the cooling bed. In order to avoid requiring an uneconomically long cooling bed as a result of the sequence times of the lengths of rolled stock, three or more longitudinal braking sections are arranged side by side to enable thin lengths at a high approach speed to be retarded in rapid succession and conveyed across to the cooling bed. Covering means of the braking sections are constructed to provide additional retardation of the lengths, e.g. by blowing air, by lowering brake shoes or by the action of linear electromagnetic motors.

Approach roller feed bed for cooling beds for the retardation and

Rolled material leaving a rolling mill is cooled by passing it through a series of guide tubes. A pre-mixed mixture of air and water is injected into each of the tubes by nozzles facing in the direction in which the wire passes, and the wire is cooled by the mixture. The water can be removed at the downstream end of the apparatus by a nozzle facing in the opposite direction to that in which the wire travels.

Apparatus for cooling rapidly moving rolled material

Water-cooling tubes are extensively used for cooling hot moving strands, for instance hot-rolled rod. In order to avoid the braking action of the water within the tubes, the invention provides for the water to be expelled from the tubes before the leading end of the strand passes through the tubes, by blowing air into the tubes.

Growing community of inventors

Ratingen-Eckamp, Germany

Claus G Schlanzke