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WO/1999/025481A1 |
The inventive spray nozzle (5) comprises a mixing chamber (15) into which a liquid (7) forming a first and a second liquid flow (12, 13) flows through two inlet openings (9, 10) and which has an outlet opening (30) for a spray jet (40), ...
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WO/1999/024186A1 |
Method to control the axial position of slabs emerging from the continuous casting machine, the method providing to control the axial position of the slab (24) in correspondence with the inlet to the first rolling stand and to act in fee...
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WO/1999/016626A2 |
A process of laminating gold foil includes the steps of pressing a gold piece to form an elongated thin gold foil; cutting the gold foil to a plurality of gold foil pieces; placing each of the gold foil pieces between two plastic sanding...
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WO/1999/003610A1 |
A strip mill using movable coiling furnaces (126) that are in a first position horizontally aligned with the pass line (116) eliminates the need to deflect the strip into the furnaces. In a second position the movable furnaces are displa...
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WO/1999/001226A1 |
The invention relates to spray valves (1) particularly for the direction of coolant against rolling rolls. During cold rolling there is an inevitable heating effect caused by the friction between a roll and the material being rolled that...
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WO/1998/056511A1 |
A valve (1) has an aluminium body (2) having four inlets (3) for fluid to be controlled at one, planar end (4) of the body. Centrally of the inlets (3) is a control fluid inlet (6). A shuttle chamber (8) extends away from the inlet (6), ...
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WO/1998/056517A1 |
A multi-strand continuous caster (2 or 34) has downstream furnace means (12 or 36) for receiving cast strands (E, F), and a hot strip rolling mill (28) downstream of the furnace means for rolling the strands to strip, said furnace means ...
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WO/1998/053111A1 |
The present invention relates to a method for producing hot rolled aluminium tape for can making, including in rolling units with a production capacity per annum lower to 250.000 units, with reversing breaking-down of the raw material, d...
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WO/1998/051423A1 |
Tandem with two reversible four-high rolling stands (14a, 14b) for the cold rolling of thin strip up to 0.18 mm, advantageously from 0.18 to 1.2 mm, comprising at least a first (12a) and a second (12b) drawing reel, means to heat the rol...
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WO/1998/047634A1 |
A process and apparatus for cleaning metal strip without the use of pickling acids, including an uncoiler (1) leveller (2) and a grinder (3) for removing surface oxide from the strip. Optionally, tension is applied to the ground strip to...
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WO/1998/045062A1 |
A sheet bar of 20 to 50 mm in thickness produced by continuous casting on a sheet bar caster is passed as they are through a first straightener, coiled in an up-end state into an up-end sheet bar coil, then the up-end sheet bar coil is u...
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WO/1998/042462A1 |
The invention relates to a method and a device for producing wire from cast aluminum strands with a trapezoidal cross-section. Said strands undergo several roll forming steps (5, 6) after casting and hardening in the peripheral groove of...
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WO/1998/042456A1 |
An apparatus and method for reducing consumption of a cleaning solution used in cleaning oxidized hot metal surfaces of continuously cast and rolled metal rod are disclosed. A blast of air is applied to the metal surface with an airwipe ...
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WO/1998/033606A1 |
Continuous removal of particulate surface contaminants, for example, contaminants in the cleaning liquid, introduced by conduit (64), are attracted by the magnetic force of penetrating lines of magnetic flux acting along such interior su...
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WO/1998/031482A1 |
A method of processing large slabs into memory free strip or plate comprises the steps of: rolling the large slabs into strip or plate on a rolling mill with a finishing temperature above 1340 �F; in-line cooling the strip or plate to ...
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WO/1998/029205A1 |
The present invention is directed to a process for removing oxidation residue from annealed, cold-rolled stainless steel using abrasive brushes, eliminating the need for pickling the steel. The brushing process also imparts a desired fin...
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WO/1998/021535A1 |
Apparatus (106, 108) for cooling strip (120) includes a path of travel for the strip and cooling apparatus having a plurality of elongated gas nozzles (124, 126) within which are disposed water nozzles (116, 119) such that the water nozz...
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WO/1998/013152A1 |
The invention relates to a device which positions the tip of a wire (8) at the output of a manufacturing block (2) of a wire path by means of a winding-layer (4) whose head (9) rotates at a frequency (n) and which lays down in the form o...
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WO/1998/011183A1 |
A method of treating a coolant liquid used for cooling rolls of a rolling mill or for cooling a continuous caster and contaminated with particles of scale is described. This comprises passing the contaminated coolant liquid through a pri...
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WO/1998/010104A1 |
In the production of grain oriented electrical steel sheet, the control of condition of thin slab continuous casting allows to obtain advantageous solidification structures and precipitates. The steel has an initial content of carbon les...
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WO/1998/008987A1 |
In the production of high permeability electrical steel, the control of condition of thin slab continuous casting allows to obtain advantageous solidification structures and precipitates. This, in turn, allows to decritize the process fo...
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WO/1998/000248A1 |
In the manufacture of steel strip or sheet, suitable for use as deep-drawing steel for the manufacture of can bodies by deep-drawing and ironing, there are performed the steps of (i) providing a low-carbon steel in the form of a slab, (i...
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WO/1997/049507A1 |
The claimed device for removing liquid from the surface (O', 0") of a band (B) conveyed out of a band processing machine, in particular a rolling machine by means of a gas jet (G1, G4, G5, Gzl, Gzr, G12-G18, G17', G18'), said device havi...
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WO/1997/044502A1 |
A method of depositing a protective metal coating on a hot formed metal object (2) is disclosed. The object, which may, for example, be a rolled steel strip, is protected from the atmosphere by means of a tunnel (3) of inert gas as it le...
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WO/1997/039842A1 |
A process is disclosed for manufacturing hot rolled steel strips from a continuously cast bloom in at least two shaping stages having each one or several mill stands. In the first shaping stage, the bloom is rolled at its output speed fr...
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WO/1997/036699A1 |
The invention concerns a method of producing hot-rolled steel strip from continuously cast semi-finished steel in operating steps which follow one another directly. According to the invention, when the liquid steel has been transformed i...
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WO/1997/035673A1 |
Processes for working of refractory metals and other metals employing a lubricant comprising perfluorocarbon compounds (PFCs), including aliphatic perfluorocarbon compounds ('alpha'-PFCs) having the general formula: CnF2n+2, perfluoromor...
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WO/1997/033706A1 |
A method for manufacturing an ultra-thin sheet steel comprising the steps of roughly rolling a steel billet into a sheet bar, but joining the sheet bar so rolled to a preceding sheet bar, heating widthwise edge portions of the sheet bars...
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WO/1997/030817A1 |
The invention relates to a process for producing coilable lightweight construction strips and lightweight construction sheets comprising at least a first metal flange (1) and a second metal mating flange (5), the flanges (1, 5) being in ...
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WO/1997/029866A1 |
The present invention provides a descaling system (10) for hot strip of plate mills. The descaling system (10) includes upper and lower spray headers (14, 18) which are offset from each other along the pass line (12). Each spray header (...
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WO/1997/027955A1 |
In a process for descaling a workpiece (22), in particular rolling stock, the workpiece is moved past rotary descaling means, and at least one liquid jet which rotates around an axis of rotation that crosses the surface (23) to be descal...
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WO/1997/025164A1 |
A strip tip restriction apparatus capable of gripping the distal end of a strip and moving it at a high speed from the exit of a finish rolling mill to a down coiler while imparting a tension to the strip is disposed on a strip cooling l...
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WO/1997/013596A1 |
When a hot rolled steel sheet in coil (1) is subjected to high draft rolling by a cold rolling mill (4), crack, delamination or the like is produced in scale which cannot follow spreading of a ground steel, so that adhesion of the scale ...
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WO/1997/012684A1 |
A scale removing nozzle for removing scales on a metal surface by causing highly pressurized liquid to impact against the metal surface. Recently, in order to improve the scale removing performance, there is a demand for jetting ultra-hi...
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WO/1997/011798A1 |
The invention relates to a process for cold descaling of strip material, such as steel sheet, during which the strip material is drawn and subsequently exposed to high-pressure water jets.
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WO/1997/011797A1 |
Described is a device for de-scaling semi-finished products (4), such as thin steel slabs and steel strip, in rolling mills, the device using water at high pressure which is sprayed through a nozzle array (10) onto the surface of the sem...
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WO/1997/007905A1 |
The present invention provides a hot reversing rolling mill (10) for isothermally reducing a metal strip product (12). The mill (10) includes a hot reversing mill stand (14) with a pair of coilers (18) positioned on opposite sides of the...
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WO/1997/007906A1 |
A process for reducing a raw steel pipe obtained by a solid phase bonding pipe manufacturing method or a welding pipe manufacturing method is carried out by heating the steel pipe to a temperature in excess of 100 �C and lower than 800...
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WO/1997/008355A1 |
A steel material comprising 0.001 to 0.20 wt.% C, 0.01 to 0.50 wt.% Si, 0.05 to 2.0 wt.% Mn, at most 0.05 wt.% P, at most 0.05 wt.% S, 0.01 to 0.10 wt.% sol. Al, and at most 0.020 wt.% N with the balance consisting of Fe and unavoidable ...
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WO/1996/041024A1 |
The in-line combination of a reversing rolling mill (Steckel mill) (19) and its coiler furnaces (21, 23) with accelerated controlled cooling apparatus (27) immediately downstream thereof and associated method permits steel to be sequenti...
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WO/1996/037311A1 |
The continuous steel strip cleansing system includes a special separation means (70) for separation, removal and retention of the iron fines and associated debris. In the flat-rolled steel continuous-strip cleansing embodiment, contamina...
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WO/1996/035816A1 |
Equipment for continuously manufacturing metal coils characterized in that a cooling apparatus is provided on the downstream side of a heat treatment furnace in a continuous thin casting production, hot rolling and heat treatment line wi...
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WO/1996/032509A1 |
A hot-rolled strip (7) reel furnace has a strip inlet (5), at least one winding device shaped as a reel mandrel (4), a strip outlet (8) different from the strip inlet (5) and a heat-insulating furnace wall (2) that surrounds the winding ...
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WO/1996/032507A1 |
Equipment for manufacturing stainless steel strip formed by arranging in order a double-drum continuous casting machine, a bridal roll- or pinch roll-containing atmosphere control cover, a hot rolling mill, a heat treatment furnace forme...
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WO/1996/030135A1 |
The invention is a process which converts rods of hot rolled metal into strips with width to thickness ratios as high as approximately 17 to 1. The process cools the rod between successive rolling mills and employs feed backward tension ...
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WO/1996/018467A1 |
The object of the invention is to create a pressurised water discharge pipe for the direct, intensive cooling pipe of rolled goods under pressure having an improved operation that reduces the influence of steam and enlarges the field of ...
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WO/1996/012573A1 |
The invention relates to a process for producing cold-rollable steel strip consisting of the sequential steps: a) a thin slab 30 to 100 mm thick (solidification thickness) is produced from a steel melt by continuous casting; b) the thin ...
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WO/1996/011247A1 |
A fluorinated carboxylate salt anionic surfactant and/or a perfluoroalkyl poly(oxyethylene) nonionic surfactant enables polymer containing aqueous liquid treating agents for metals wet both clean and oil-contaminated surfaces, while most...
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WO/1996/007858A1 |
Modular roll apparatus particularly suitable for conveying hot material such as a sheet being processed. Each roll (8) has its own individual water bath and drive mechanism (7). A water trough (16) isolates the bath from the bearings (10...
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WO/1996/006696A1 |
The invention concerns a method of reducing and controlling surface scaling during the hot-rolling of flat products, in particular hot-rolled strip. According to the invention, water acts on the rolling stock as it passes through the mil...
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