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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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WO/1996/002334A1 |
A washing device for a surface of a steel plate which permits, e.g., a sufficient removal of scales therefrom before being hot rolled. Water (42a, 46a) is jetted from nozzles (42, 46) of a descaler (40) toward the downstream side of a ca...
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WO/1996/002333A1 |
The present invention relates to a rolling mill for producing angle steel having superior surface properties and a small outer radius at a corner portion and a rolling method using the rolling mill. The rolling mill according to the pres...
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WO/1995/031297A1 |
A combination of sulfur-free azoles, preferably benzotriazole and tolyltriazole, with sulfur-containing azoles, preferably 2-mercaptobenzothiazole or mercaptobenzimidazole, prevents discoloration, staining, or corrosion of metal surfaces...
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WO/1995/026840A1 |
A twin-roll type continuous casting device is provided which can produce sheets having good mechanical strength obtained through uniform crystal grain refinement and smooth and low surface roughness obtained by reducing variation in the ...
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WO/1995/026837A1 |
A method of reducing thermal shock on a work roll during the hot reduction of steel slab or sheet wherein a surface of the workpiece is cooled by at least 150 �C to a temperature of not less than 750 �C prior to its contact with the ...
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WO/1995/026390A1 |
A lubricant for hot rolling used when high-Cr stainless steel is hot rolled, the lubricant being supplied continuously at least while the hot rolling of high-Cr stainless steel is done, to the surface, which contacts the material to be r...
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WO/1995/024281A1 |
A rolling mill, in particular a cold rolling mill, for the production of rolled strips, for example steel strips, has roll stands with at least back-up and working rollers and with which are associated, at least partially, devices for sh...
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WO/1995/014537A1 |
An applicator (10) for applying a film of liquid to the surface of a workpiece by contact transfer. The apparatus utilizes one or more roller members (12, 14) rotatably contacting a workpiece as it is advanced for manufacture or finishin...
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WO/1995/013156A1 |
Steel strip (120) produced by a continuous strip caster (40) is treated as it comes from the caster and while it is in line with the caster by applying to the hot strip exiting the caster by means of a coater (201) an oxidation protectiv...
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WO/1995/009702A1 |
A curtain apparatus having a hood (25) with a top plate (27) in which a plurality of slots (28, 28', 29, 29') are positioned approximately parallel to each other. A fixed woven mesh metal curtain (40) is mounted within one slot so that t...
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WO/1995/009059A1 |
A hot rolling device for steel strips capable of reducing the length of a building of the whole plant and producing superior-quality steel strips. The hot rolling device is characterized in that a molten lead tank for storing therein mol...
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WO/1995/009256A1 |
A process for treating, in particular cleaning, surfaces, in particular foils and metallic surfaces, is disclosed. Such surfaces are in general covered with a film of oil or grease immediately after they are produced. Grease and oil must...
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