Rolling cut metal shearing apparatus is described in which the starting and, or end position of a shear blade is varied according to the width, position and thickness of material to be cut, thereby optimising the stroke of the blade for the material dimensions. This provides for shorter cutting times, reduced volume...

The invention relates to a measuring touch probe (1) for i sampling a circumferential surface (21) of a cylindrical roller (20) , and to a method for laser-optical determination of an j actual height HActUai of a strand guide roller (20) in a strand i guide by means of a measuring system. It is the object of the...

Apparatus for gas sampling in dirty environment such as blast furnaces is disclosed, which reduces the problems associated with dirt ingress by purging critical components with an inert gas such as nitrogen.

Method for thermo-mechanical controlled rolling of metal slabs to plates or strips, in which for two successively rolled slabs the time gap between the starts of their rolling phases 1 is always smaller than the sum of the duration of all rolling phases and all cooling phases of the rolling pattern, and in which dur...

A cyclone is provided which combines a classi fier inlet, which provides at least partial separation of particles according to size, with a by-pass arrangement which diverts selected particles to a cyclone discharge duct. The invention has particular utility in the collection of particles from blast furnace waste ga...

The invention relates to the design of multiple piece rolls, in particular backup rolls, for the use in metal rolling. The roll comprises a main part (1) with a centre bore (4) for the removal of centre defects or flaws arising from the manufacturing >rocess, e.g. from casting or forging and at least an end part (2,...

The invention relates to the field of controlled cooling of hot plate or strip shaped metal. An apparatus for the controlled cooling and a control method is proposed. The apparatus comprises a header fitted with a first valve (7), whereas the valves (7) allows air to escape from the header and prevent cooling fluid ...

The invention relates to a roll bending device for the control of profile and flatness in the rolling of metal plates or strips. In particular the invention relates to the well known principle of roll bending by using hydraulic cylinders to modify the load distribution between rolls of a rolling mill stand and a ro...

A flow control valve is described which meets the operational requirements of a cooling machine for hot metal strips or plates. The valve is operated by a pneumatic actuator which is controlled by use of a high performance pneumatic proportional valve in conjunction with an electronic controller receiving reference ...

A rolling mill is disclosed having means for aligning a work piece with the work rollers. A beam having a face or edge providing an alignment datum is introduced to the path of the work piece which is contacted with, and pushed against the face by the roller table. After the work piece is alligned, the beam is ra...

The invention relates to a method and an apparatus for controlled cooling of hot rolled metal (1) using zone separation spray devices (10,11,12) which are adjustable as a function of the cooling flow (5,8) applied.

A fully hydraulic edging system suitable for use in wide plate mills is disclosed. The need for electro-mechanical screws to effect large movements of the side rollers is avoided by employing a pull-back hydraulic cylinder for this purpose. The main hydraulic cylinders are switched to a non-operational mode during l...

The disclosed invention is a new concept for controlling the flatness of the strip during the rolling of aluminium strip or foil. The system consists of a full width bank of cryogenic roll cooling devices acting on the roll(s) and a full width bank of roll heating devices also acting the roll(s). Both or either of t...