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WO/1997/027010 |
Method and respective hot rolling plant for the continuous production of bars, iron rods or wire, of the type in which the rolled section is cut longitudinally in which: the result is a thin flat bloom (A) with large flat (B) with a thic...
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WO/1997/027341 |
A molten steel is regulated so as to have a carbon content of 0.001 % or higher and then directly cast into a continuous steel sheet for cold rolling by using a twin-drum continuous casting apparatus to effect a reduction of at least 10 ...
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WO/1997/027012 |
A method and a device are provided for rolling a slab (1, 5), in particular a slab whose thickness varies over its length, using at least two roll stands (6, 7) with a substantially constant and preferably low tension being maintained in...
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WO/1997/027009 |
A method is provided for roll-forming an I-beam structure having a web and a pair of opposing flanges at each end of the web. The method includes the steps of providing a flat blank having a thickness generally equal to a thickness of th...
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WO/1997/026377 |
The invention relates to a process for the hot rolling of bands from unalloyed or low-alloy steel, in particular extra low carbon, ultra low carbon and interstitial free steel, in a multiple-stand finishing group, starting at a temperatu...
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WO/1997/026378 |
A hot rolled Cr-Ni stainless steel plate of a low anisotropy having an aggregate structure in which the (100, 110, 111, 311 and 211) plane strengths in a reverse pole figure measured at the portion of 1/4 of a plate thickness is 0.5-1.5,...
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WO/1997/023319 |
Continuous casting machine for the casting of a thin slab with a thickness of less than 150 mm comprising a vacuum tundish having a first atmospheric chamber (7) and a second low pressure or vacuum chamber (1) hydraulically connected to ...
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WO/1997/023310 |
A method and an apparatus for rolling shape steel, such that the unit consumption of the rolling rolls, the dimensional accuracy, and the stability of rolling are improved, and the productivity is high. A dog bone-shaped material to be r...
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WO/1997/021887 |
The invention relates to a metal section which has sectional flanges connected to each other by means of a structurally-changing deformation so as to have a tensile and shear resistance.
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WO/1997/021506 |
The invention relates to a method for the production of a new type of metal section. In the new method, a groove is first made in a section flange (6) by structurally-changing deformation, a second section flange (2) is subsequently inse...
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WO/1997/020956 |
A process for producing non-oriented electrical steel sheets, by hot rolling a slab comprising on the weight basis 1.00 % < Si 7.0 %, 0.10 % Mn 1.50 %, C 0.0050 %, N 0.0050 %, and S 0.0050 % with the balance consisting of Fe and unavoida...
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WO/1997/018914 |
A process is disclosed for producing thin metal bars, in particular steel bars. An elongated metal product is brought into contact with a molten metal and causes its crystallisation. The following steps are provided: an elongated metal p...
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WO/1997/013596 |
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/1997/013039 |
An unsymmetrical steel sheet pile and a method for manufacturing the same in which good joint shapes can be obtained without forming any convex portion by making a joint portion of a sheet pile wall become flush with a flat arm portion, ...
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WO/1997/011796 |
A deformed bar having knots and four ribs on its surface is produced by performing the final finish rolling by means of a two-roll rolling mill. Rolls R1, R2 of the two-roll rolling mill have a peripheral groove (3), knot grooves (2) and...
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WO/1997/007905 |
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/1997/008355 |
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/1997/006900 |
A method and a roll for hot rolling a steel material that are effective in preventing seizing between a roll and steel material being rolled, the wear of the roll and the rough surface of the roll and the steel material being rolled that...
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WO/1997/005971 |
The invention pertains to a plant to produce hot-rolled steel strip from a band of continuous cast input stock in a sequence of process steps, characterized by a continuous casting plant with a continuous casting and rolling unit with a ...
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WO/1997/004891 |
The invention concerns a method of operating a continuous casting plant (10) having a continuous casting machine which comprises a stationary mould (11) and is connected to a soaking pit furnace (50) via a roller table (21). When the sla...
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WO/1997/001402 |
A method for the manufacture of a strip of formable steel comprises the steps of (i) forming liquid steel by continuous casting into a slab having a thickness of not more than 100 mm, (ii) rolling the slab in the austenitic region into a...
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WO/1997/001401 |
A plant for the manufacture of steel strip, comprises a continuous casting machine (1) for casting a steel slab, and at least one furnace apparatus (13, 14) receiving the steel slab. The furnace apparatus has an entry port and an exit po...
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WO/1997/001403 |
The manufacture of thin hot-rolled steel strip comprises the steps of: (i) forming a liquid steel into a cast slab having a thickness of less than 100 mm in a continuous casting machine; (ii) rolling the slab in the austenitic region int...
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WO/1997/000148 |
A control is disclosed for a roller table (18) that has at least one roller group (32, 32', 32'') that can be individually switched. The control has switching means (26, 26', 26'') for at least one of the roller groups (32, 32', 32'') fo...
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WO/1996/040456 |
An optimizing method for improving the efficiency of production is provided for a steel rolling mill using a Steckel mill to roll steel slab to end-product thickness, and associated downstream equipment of limited capacity to generate st...
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WO/1996/041024 |
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/1996/035816 |
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/1996/033822 |
A production plant for an elongated metal product is described, which includes, in order, means (1) for producing a metal blank (B) in a first rectilinear direction (x'-x), one or more blooming stands (2) and one or more finishing stands...
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WO/1996/032507 |
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/1996/032509 |
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/1996/030135 |
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/1996/029160 |
Object: to prevent (1) a flange eating trouble, (2) the abrasion of a side surface of a width fixing horizontal roll and an increase in the frequency of a roll replacement operation, (3) the abrasion of a side surface of a width fixing h...
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WO/1996/025251 |
The invention relates to a process and device for rolling out the ends of a coiled strip (B) in a reversing mill (1, 2) with coilers (3, 4) arranged on both sides. In order to reduce the un-run-out lost lengths at the strip ends with the...
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WO/1996/025248 |
A horizontal roller guide apparatus HG or a friction guide apparatus FG is disposed near the front of a universal finishing mill FU for a shape having a flange and a web. Due to the synergistic effect of restricting the center portion of...
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WO/1996/023608 |
Flanged structural products are rolled directly from rectangular slabs (12) using only a universal mill having web rolls of fixed width corresponding to a selected finished web depth of the finished product. Original slab width is depend...
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WO/1996/014945 |
The invention relates to a variable roll width type rolling roll constructed such that in order to enhance strength by eliminating stress concentration on a structure which drivingly couples a roll on a drive side to the other roll, a sl...
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WO/1996/014174 |
A multi-strand finishing block finishes two or more daughter strands slit from a parent bar. Each strand is rolled by at least two pairs of rolls arranged in tandem with the rolls of each pair being at right angles to the rolls of the ot...
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WO/1996/012574 |
A method of manufacturing a seamless steel pipe the performance of which is superior to that of a conventional product of this kind, by simplified manufacturing steps and equipment, at a lower cost and with a high productivity, and manuf...
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WO/1996/012573 |
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/1996/012572 |
A slab feed yard disposed between a continuous casting machine and a hot rolling step to reliably feed the physical flows of slabs via a plurality of routes to the hot rolling step in accordance with the sequence of rolling commands. A s...
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WO/1996/011080 |
A work butt position detecting method for detecting with a high accuracy the butt position of works having even chamfered edges or sags at the ends thereof. Works (1, 2) are scanned with a light beam (52) across a weld line (4), and the ...
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WO/1996/008629 |
The present invention relates to lamellae for light deflection and for scattering radiation, particularly sun radiation. The lamellae comprise two portions wherein the first portion is graded like stairs. It serves for scattering sun rad...
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WO/1996/007861 |
Coiler furnaces of the type used with reversing rolling mills are provided with a strip guide (49) for guiding the leading edge (44) of the incoming steel grip into engagement with the slot in the winding drum of the coiler furnace. Acco...
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WO/1996/004960 |
A device is disclosed for extinguishing fires, as well as uses of the device for the stationary protection of objects and for binding dust during operations with explosives and a method of extinguishing forest or surface fires using the ...
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WO/1996/002333 |
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/1996/002676 |
A method of making high-strength steel structural members is disclosed by providing a blank of high-strength steel having a ferrite-pearlite microstructure and high-strength mechanical properties and cold forming the blank by rolling, up...
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WO/1996/001710 |
Twin-roll casting method for casting steel strand of thickness preferably 5 to 35 mm. Immediately downstream of the twin rolls, the cast strand is cooled by directing it through a stationary cooled mold (10). Subsequent to exiting the st...
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WO/1996/001705 |
When a metal band (5) is rolled in a blooming train (1) and in a finishing train (2), the rolling process is adjusted in the blooming train (1) in a manner known per se depending on a prediction value (ypre) of the change in width of the...
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WO/1996/001711 |
A twin-roll caster casts steel strand of thickness preferably 5 to 35 mm. Preferably both a primary (e.g. 30 tons) and secondary tundish (e.g. 5 tons) are provided above the caster. An inert or reducing gaseous atmosphere is provided abo...
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WO/1996/001709 |
A twin-roll caster casts steel strand of thickness preferably 5 to 35 mm. Immediately downstream of the twin rolls, a water-cooled copper stationary mold further cools the strand. The upper surfaces of the stationary mold are preferably ...
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