| Entries |
| Document | Title | Date |
|---|
| 20090301157 | METHOD OF AND APPARATUS FOR HOT ROLLING A THIN SILICON-STEEL WORKPIECE INTO SHEET STEEL - The invention relates to a method and a system for the production of hot-rolled strip silicon-alloy steel for further processing into grain-oriented sheets, such as electrical sheets, wherein a cast product, in this case a thin slab, for example, with a maximum thickness of 120 mm, is subjected to thermal pretreatment and to a subsequent rolling process on a hot-rolling line to set a desired recrystallization state. The invention proposes an intake temperature (T | 12-10-2009 |
| 20090320546 | Method and Finishing Train for Hot-Rolling Starting Material - The invention relates to a method and a finishing train for hot-rolling starting material. Starting material is finished in several successive roll stands ( | 12-31-2009 |
| 20100043513 | Method for manufacturing flat steel products from boron microalloyed multi-phase steel - A method, which allows high-tensile flat steel products to be manufactured with less effort includes a steel that forms a multi-phase microstructure and contains (in wt. %) 0.08-0.12% C, 1.70-2.00% Mn, up to 0.030% P, up to 0.004% S, up to 0.20% Si, 0.01-0.06% Al, up to 0.0060% N, 0.20-0.50% Cr, 0.010-0.050% Ti, 0.0010-0.0045% B, remainder iron and unavoidable impurities, being cast into a cast strip having a thickness of 1-4 mm. The cast strip is hot-rolled in-line into a hot-rolled strip having a thickness of 0.5-3.2 mm in a continuous process at a final hot-rolling temperature ranging from 800 to 1100° .C, the deformation degree being greater than 20%. The hot-rolled strip is coiled at a coiling temperature ranging from 250 to 570° C., so as to obtain a hot-rolled strip, which has a minimum tensile strength R | 02-25-2010 |
| 20100050726 | Superplastically Continuous Roll Forming Titanium - A method of forming titanium structures, and more specifically, a method of superplastically continuous roll forming titanium structures are disclosed herein. In one embodiment, a method of forming a shape in an article comprising titanium, the method including, among other things, providing first and second rolling members, the first rolling members being conductive and the second rolling members being continuous roll shaping members; contacting the article with the first rolling members to transfer a current to the article to heat the article to a temperature suitable for superplastic forming; and with the article being in a superplastic state, contacting the article with the second rolling members to form the shape in the article. | 03-04-2010 |
| 20100175452 | METHOD FOR HOT ROLLING AND FOR HEAT TREATMENT OF A STEEL STRIP - The invention relates to a process for hot rolling and for heat treatment of a strip ( | 07-15-2010 |
| 20100180655 | HOT ROLLING APPARATUS - The present disclosure relates to a hot rolling apparatus for manufacturing a metal plate by hot-rolling-treating a metal material including copper. The apparatus includes: a rough rolling device for rolling-treating the metal material, which has been heating-treated, a plurality of times with a back-and-forth movement of the metal material, to mold the metal material into a metal plate; a heat retention/application treatment device for retaining heat of or applying heat to the metal plate molded by the rough rolling device at lower temperatures than in the heating treatment, without applying bending; a finish rolling device for further rolling-treating the metal plate that has been heat-treated by the heat retention/application treatment device; a cooling device for cooling the metal plate that has been rolling-treated by the finish rolling device; and a support table for movably supporting the metal plate from below before and after the rough rolling device while the metal material is moved back and forth by the rough rolling device. According to the present disclosure, it is possible to improve the quality of the metal plate manufactured in the hot rolling apparatus, and also to improve the speed of the process required for rolling. | 07-22-2010 |
| 20100180656 | REVERSE TEMPERATURE FIELD ROLLING METHOD FOR MG ALLOY SHEET - A rolling technique for manufacturing magnesium alloy sheets with high plasticity which is characterized in that by heating the rolls during rolling to ensure an unconventional decreasing temperature field from the surface to the center within the rolled material. Due to the poor plasticity and formability of magnesium and magnesium alloys, the use of their sheet products are currently limited, in particular, in high performance applications. To solve this problem, improving on the plasticity and formability of magnesium and magnesium alloy sheets is urgently needed. The present invention presents a rolling technique to manufacture magnesium and magnesium alloy sheets with high plasticity. The said rolling method is featured by heating the rolls during rolling to ensure an unconventional decreasing temperature field from the billet surface to its center, and to make the roll temperature to match with the initial temperature field of the billet material. By the said unconventional decreasing temperature field it is meant that the billet surface temperature is higher than the temperature in its center, and there is heat transfer from the surface to the center, during rolling. | 07-22-2010 |
| 20100242558 | PROCESS OF PRODUCING STEEL STRIPS SUITABLE FOR AN OXIDATION-RESISTING SURFACE COATING - A process is described for producing steel strips suitable for receiving a surface coating which is resisting to oxidation, in particular tin plating, of medium productivity, that does not require for its execution plants extended of a large areas or involving high economical investments. It comprises, starting from pickled hot strips having a thickness >0.7 mm, preferably obtained from thin-slab plants, a single cold rolling step by passing through not more than three stands of the Sendzimir 6Zhi type for the cold reduction of thickness to less than 0.25 mm and subsequent annealing. It is possible to obtain final thicknesses <0.18 mm both by simple reduction, which only provides subsequent skin-passing and finishing steps, and by double reduction on half-raw strip, which provides subsequent passes for thickness reduction of 30%. | 09-30-2010 |
| 20110067474 | MAGNESIUM HOT ROLLING APPARATUS - In a magnesium alloy hot rolling apparatus in which winders that are able to apply heat to and then maintain the temperature of a magnesium alloy sheet while this sheet is in a coiled state are installed on both entry and exit sides of a rolling mill, and in which the magnesium alloy sheet undergoes a sequential thickness reduction via a plurality of reverse rollings, the rolling mill is provided with working rollers and back-up rollers whose surface temperature can be heated to a particular fixed temperature and then maintained at this temperature. According to the present invention, it is possible to prevent any deterioration in the quality of a product which is caused by temperature variations during the hot rolling of the magnesium alloy sheet, and it is possible to improve the yield and increase productivity. | 03-24-2011 |
| 20110100083 | MAGNESIUM HOT ROLLING METHOD AND APPARATUS - A magnesium alloy hot rolling method includes: a first rolling step in which a magnesium plate (M | 05-05-2011 |
| 20110132054 | METHOD FOR LONGITUDINALLY GUIDING ROLLING STOCK, ESPECIALLY A HOT-ROLLED STEEL STRIP, AND HOT-ROLLING MILL FOR CARRYING OUT SAID METHOD - An object of the invention is to reduce structural and strength differences over the width of the rolling stock and to minimize the losses of the rolling stock caused by trimming. The object of the invention is achieved, according to the invention, by guiding the rolling stock ( | 06-09-2011 |
| 20110138870 | METHOD AND DEVICE FOR WINDING HOT-ROLLED STRIP - In a method for winding hot-rolled strip ( | 06-16-2011 |
| 20110162426 | MAGNESIUM ALLOY SHEET - The invention offers a magnesium alloy sheet having excellent warm plastic formability, a production method thereof, and a formed body produced by performing warm plastic forming on this sheet. The magnesium alloy sheet is produced by giving a predetermined strain to a rolled sheet RS that is not subjected to a heat treatment aiming at recrystallization. The sheet is not subjected to the foregoing heat treatment even after the giving of a strain. The strain is given through the process described below. A rolled sheet RS is heated in a heating furnace | 07-07-2011 |
| 20110174040 | Continuous Microscale Forming of Metal-Based Microchannels and Other Microchannel Devices - A process is disclosed for producing metal-based, high-aspect-ratio microscale structures (HARMs), for example microchannels in a heat exchanger. The preferred manufacturing method operates in a continuous mode, and employs low-temperature rolling of metals. A process is disclosed for bonding metal microchannel sheets or plates to flat metal sheets or plates to form single-, double-, and multiple-layered microchannel structures. The process can operate at much lower temperatures than prior methods of compression microscale molding of metals, at room temperature or even lower. | 07-21-2011 |
| 20110252854 | METHOD FOR PRODUCING HIGH ALLOY PIPE - [Problem to be Solved] A high alloy pipe can be produced that has not only a corrosion resistance required for oil well pipes but also has a targeted strength, without excessively adding alloying components, by selecting the working conditions at the time of the cold rolling. | 10-20-2011 |
| 20120000262 | METHOD FOR MANUFACTURING GRAIN-ORIENTED SILICON STEEL WITH SINGLE COLD ROLLING - The invention provides a method for producing grain-oriented silicon steel with single cold rolling, comprising: 1) smelting, refining and continuous casting to obtain a casting blank; 2) hot rolling; 3) normalization, i.e. normalizing annealing and cooling; 4) cold-rolling, i.e. single cold rolling at a cold rolling reduction rate of 75-92%; 5) decarburizing annealing at 780-880° C. for 80-350 s in a protective atmosphere having a due point of 40-80° C., wherein the total oxygen [0] in the surface of the decarburized sheet: 171/t≦[O]≦313/t (t represents the actual thickness of the steel sheet in mm), the amount of absorbed nitrogen: 2-10 ppm; 6) high temperature annealing, wherein the dew point of the protective atmosphere: 0-50° C., the temperature holding time at the first stage: 6-30 h, the amount of absorbed nitrogen during high-temperature annealing: 10-40 ppm; 7) hot-leveling annealing. The invention may control the primary recrystallization microstructure of steel sheet effectively by controlling the normalization process of hot rolled sheet to form sufficient favorable (Al, Si)N inclusions from nitrogen absorbed by slab during decarburizing annealing and low-temperature holding of high-temperature annealing, facilitating the generation of stable, perfect secondary recrystallization microstructure of the final products. In addition, the invention avoids the impact of nitridation using ammonia on the underlying layer in prior art, and thus the formation of a good glass film underlying layer is favored. | 01-05-2012 |
| 20120031160 | LOW CARBON WELDED TUBE AND PROCESS OF MANUFACTURE THEREOF - The present invention relates to low carbon welded tubes and process of manufacture thereof. Manufacture of welded tubes utilising draw bench processes is energy intensive process due to the need of multiple pass (to enhance mechanical properties, in particular tensile and yield strength) to reduce the diameter of the hollow to desired dimensions as only 20 to 35% reduction achievable in a single pass. Further, there is substantial material loss with every pass and poor control on dimensional stability and surface finish of the tube. The present invention provides a synergistic combination of induction and/or resistance heat treatment of the hollow and the cold rolling process resulting in remarkable reduction in energy consumption, and at the same time enhancing quality of the resulting tubes with improved dimensional stability, closeness of tolerance, reduced thickness variation, concentricity and substantial reduction in material wastage. | 02-09-2012 |
| 20120192611 | METHOD FOR PRODUCING SHEET METAL PART AND A FORMING TOOL - In a method for producing a sheet metal part, a sheet metal blank is rolled to have at least two regions of different material thickness to define a thick region and a thin region, with a thickness profile of the sheet metal blank extending in substantial symmetric relationship to a central plane of the sheet metal blank. The sheet metal blank is inserted into a forming tool having a punch and a die and a punch-proximal side of the sheet metal blank is contacted with a pressing cam formed on the punch. The sheet metal blank is formed into the sheet metal part by pressing the punch against the die and thereby forming an embossment by a die cam provided on the die on a die-proximal side of the sheet metal part. | 08-02-2012 |
| 20120234066 | alpha+beta-TYPE TITANIUM ALLOY PART AND METHOD OF PRODUCTION OF SAME - A method of production of an α+β-type titanium alloy part for a motorcycle, car, or bicycle which has a high Young's modulus (rigidity) in the axial direction of the shaped product and a bolt, engine valve, or connecting rod made of an α+β-type titanium alloy and a method of production of the same, wherein an α+β-type titanium alloy is heated at the temperatures giving the β-single phase, then is uni-directionally hot rolled, the plate is machined so that a direction vertical to both the hot rolling direction and thickness direction (width direction) corresponds to the direction in which high rigidity is demanded in the finished part, that is, the axial direction of the bolt, engine valve, or connecting rod, and the X-ray diffraction intensities I(0002), I(10-10), and I(10-11), of the (0002) plane, (10-10) plane, and (10-11) plane of the titanium α-phase measured at the cross-sections vertical to the longitudinal axial direction of the parts satisfy I(0002)/[I(10-10)+I(10-11)]≦1. | 09-20-2012 |
| 20120272705 | SHEET METAL REPAIR JIG - A sheet metal repair jig for smoothening a sheet metal by heating and cooling a part of the sheet metal to be repaired includes at least one roller having a cylindrical shape, the roller being made of an electrically-conductive material and serving as a heating means; a roller support shaft supporting the roller pivotably about an axis of rotation of the cylindrical shape; a support supporting the roller support shaft and having an electrode electrically connected to the roller; and a cooling channel serving as an air channel for discharging cooling air to a contact surface between the part of the sheet metal to be repaired and the roller. The cooling channel is formed inside the roller support shaft and has a discharge port that discharges the cooling air to the contact surface between the part of the sheet metal to be repaired and the roller. | 11-01-2012 |
| 20130014555 | QUENCHABLE STEEL SHEET HAVING HIGH HOT PRESS WORKABILITY AND METHOD OF MANUFACTURING THE SAME - The quenchable steel sheet has an alloy composition including carbon (C) in an amount of 0.15 to 0.30 wt %, silicon (Si) in an amount of 0.05 to 0.5 wt %, manganese (Mn) in an amount of 1.0 to 2.0 wt %, boron (B) in an amount of 0.0005 to 0.0040 wt %, sulfur (S) in an amount of 0.003 wt % or less, phosphorus (P) in an amount of 0.012 wt % or less, one or more selected from among calcium (Ca) in an amount of 0.0010 to 0.0040 wt % and copper (Cu) in an amount of 0.05 to 1.0 wt %, two or more selected from among cobalt (Co), zirconium (Zr) and antimony (Sb), and iron (Fe). Alloy elements are controlled to increasing hot ductility and enabling pressing at 600 to 900° C. so that a tensile strength of 1400 MPa or more and an elongation of 8% or more are obtained after pressing. | 01-17-2013 |
| 20130031944 | Method of Forming Magnesium Alloy Sheets - A machine for asymmetric rolling of a work-piece includes pair of rollers disposed in an arrangement to apply opposing, asymmetric rolling forces to roll a work-piece therebetween, wherein a surface of the work-piece is rolled faster than an opposite surface of the work-piece; and an exit constraint die rigidly disposed adjacent an exit side of the pair of rollers so that, as the work-piece exits the pair of rollers, the work-piece contacts the exit constraint die to constrain curling of the work-piece. | 02-07-2013 |
| 20130074566 | NO-SLIT HOT ROLLING OF RAILROAD RAILS - A method of recycling a one-piece rail having a base portion and a head portion spaced from each other by a substantially flat web portion. The steps include: heating the rail to a plastic state; feeding the heated rail through a first reduction pass to reduce a cross section of the rail without slitting the rail; feeding the rod through a second reduction pass in which the cross section of the rod is further modified and then slitting the rod along the web portion into two rod pieces, one containing the former head portion and one containing the former base portion, as the rod leaves the second reduction pass; and rolling the two rod pieces, in a single pass line, through a series of reduction passes to produce a desired final cross section of the pieces. | 03-28-2013 |
| 20130125601 | MANUFACTURING METHOD OF NON-ORIENTED ELECTRICAL STEEL SHEET - A steel having a predetermined composition is hot-rolled so as to form a steel strip, the steel strip is subjected to first cold-rolling, the steel strip is subjected to intermediate annealing, the steel strip is subjected to second cold-rolling, and the steel strip is subjected to finish annealing. A finish temperature in the hot-rolling is 900° C. or less, annealing is not performed between the hot-rolling and the first cold-rolling, and a rolling reduction in the second cold-rolling is not less than 40% nor more than 85%. | 05-23-2013 |
| 20130167608 | METHOD FOR MANUFACTURING A PIPE - The present invention relates to a method for manufacturing a pipe, including: a rolling step of arranging a plurality of carbon threads such that the carbon threads tightly contact an outer surface of a mandrel; a heat-molding step of heating the mandrel in a furnace so as to compressively heat the carbon threads such that the latter are molded into a pipe; and a drawing step of removing a compression tape from the molded pipe, and separating the pipe from the mandrel. | 07-04-2013 |
| 20140041432 | HOT-ROLLING MACHINE FOR WIRE-ROD AND THE LIKE - A hot-rolling machine for wire rods includes a number of rolling units arranged one after another along a wire-rod feeding path to plastically deform a high-temperature wire rod moving along the path. Each rolling unit includes a rolling stand arranged on the wire-rod feeding path and two counter-rotating milling rollers are arranged one beside the other, parallel and tangent to one another to form a rolling groove through which the wire rod is forced to pass. A mechanical gear reduction unit is arranged beside the rolling stand to drive simultaneously the two rolls about the respective longitudinal axes. The mechanical gear reduction unit forms, with one rolling stand, a single sectional elementary module structured for being aligned with similar sectional elementary modules, along the wire-rod feeding path and for being mechanically coupled to an immediately adjacent sectional elementary module to form a catenary of rolling units reciprocally connected to transmit torque in cascade from one another. | 02-13-2014 |
| 20140060138 | PROCESSING OF TITANIUM-ALUMINUM-VANADIUM ALLOYS AND PRODUCTS MADE THEREBY - A method of forming an article from an α−β titanium including, in weight percentages, from about 2.9 to about 5.0 aluminum, from about 2.0 to about 3.0 vanadium, from about 0.4 to about 2.0 iron, and from about 0.2 to about 0.3 oxygen. The method comprises cold working the α−β titanium alloy. | 03-06-2014 |
| 20140165686 | Component for a Steel Pickling Apparatus, a Heat Exchanger for Heating Hydrochloric Acid Pickling Solution, a System and Method for Pickling, and a Method of Manufacturing Steel Products - A component for a steel pickling apparatus is formed from an alloy that predominately comprises niobium and tantalum. The component may be a heat exchanger component, such as a tube or tubesheet liner, formed from the alloy that predominately comprises niobium and tantalum. Also, disclosed is a heat exchanger including the component, a system and method for pickling using the heat exchanger, and a method of manufacturing a steel product including the method of pickling. | 06-19-2014 |
| 20140182345 | METHOD AND PLANT FOR PRODUCING METAL ROLLED PRODUCTS - A method for producing rolled products includes providing two parallel lines downstream of a continuous casting, for conveying profiled supply sections that converge together at least at a single first rolling station. A plant for implementing the method is also provided. | 07-03-2014 |
| 20140245805 | HOT-ROLLED HIGH-STRENGTH STEEL TRUCK FRAME RAIL - Hot-rolled high-strength steel elongated structural members and method of making same are disclosed by hot-rolling high-strength steel having a specific chemical composition to provide the members of desired geometrical configuration including a thin web with opposed thicker flanges extending therefrom to increase the load bearing capacity of the members. | 09-04-2014 |
| 20140373588 | WEAR RESISTANT AUSTENITIC STEEL HAVING SUPERIOR MACHINABILITY AND TOUGHNESS IN WELD HEAT AFFECTED ZONES THEREOF AND METHOD FOR PRODUCING SAME - There are provided a wear resistant austenitic steel having superior machinability and toughness in weld heat affected zones and a method for producing the austenitic steel. The austenitic steel includes, by weight %, manganese (Mn): 15% to 25%, carbon (C): 0.8% to 1.8%, copper (Cu) satisfying 0.7C-0.56(%)≦Cu≦5%, and the balance of iron (Fe) and inevitable impurities, wherein the weld heat affected zones have a Charpy impact value of 100 J or greater at −40° C. The toughness of the austenitic steel is not decreased in weld heat affected zones because the formation of carbides during welding is suppressed, and the machinability of the austenitic steel is improved so that a cutting process may be easily performed on the austenitic steel. The corrosion resistance of the austenitic steel is improved so that the austenitic steel may be used for an extended period of time in corrosive environments. | 12-25-2014 |
| 20150101382 | METHOD AND COMPOSITION FOR RECYCLING ALUMINUM CONTAINERS - The present disclosure provides improved processes and compositions for continuously casting aluminum alloys. The resulting aluminum alloy sheet is useful for container body stock. | 04-16-2015 |
| 20150361530 | COLD-ROLLED STEEL AND MANUFACTURING METHOD THEREFOR - A cold-rolled steel plate having favorable heat spot resistance and favorable antiwear performance is provided. | 12-17-2015 |
| 20160114365 | ROLLER FOR HOT ROLLING OF WIRE RODS AND THE LIKE, AND WIRE-ROD AND THE LIKE, HOT-ROLLING MACHINE PROVIDED WITH SAID ROLLER - A wire-rod and the like, hot-rolling machine wherein the two rollers are fitted on respective frustoconical end portions of as many counter-rotating supporting shafts, via interposition of corresponding centering and coupling bushings having a frustoconical internal profile, each of which is fitted on the end portion of a respective supporting shaft, between the supporting shaft and the corresponding roller, and is structured so as to mesh on the supporting shaft so as to be angularly integral to said supporting shaft, and so as to be inserted/wedged between the supporting shaft and the roller thus to center the roller on the supporting shaft and moreover make the roller angularly integral to the body of the supporting shaft. Each centering and coupling bushing is provided with an annular flange having an eccentric lobe-shaped profile and which cantilevered projects from the outer surface of the bushing, at one of the two mouths of the central through hole of the roller, and is designed to engage a corresponding annular groove with eccentric lobe-shaped profile which is formed on the body of the roller at the mouth of the roller central through hole, and has a shape complementary to that of the annular flange. | 04-28-2016 |
| 20160193638 | CENTRIFUGALLY CAST, HOT-ROLLING COMPOSITE ROLL | 07-07-2016 |
