| Entries |
| Document | Title | Date |
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| 20100319425 | PRODUCTION METHOD OF INTERNALLY RIBBED STEEL TUBE AND DRAWING PLUG FOR USE THEREIN - There is provided a production method capable of forming spiral ribs stably by reducing troubles at the time of cold drawing for forming the spiral ribs on an internally ribbed steel tube. When the internally ribbed steel tube on which a plurality of stripes of spiral ribs are formed in the tube axis direction is manufactured by inserting a plug on which a plurality of stripes of spiral grooves are formed on the outer peripheral surface thereof into the tube to be worked subjected to chemical treatment and then performing cold drawing, drawing is performed with the plug preheated to 50 to 200° C., thus forming the spiral ribs on the internal surface of a blank tube. The chemical treatment preferably includes a pickling step of removing oxided scale and rust on the tube surface, a step of forming a zinc phosphate coat on the neutralized tube surface, and a step of forming a lubricating layer on the zinc phosphate coat. The internally ribbed steel tube thus obtained is well applicable to increased capacity and higher temperature/higher pressure of a boiler because the steel tube is provided with formability and quality excellent as a boiler steel tube. | 12-23-2010 |
| 20110107804 | DEVICE FOR SATINIZING AND EMBOSSING PACKAGING FOILS - The device for satinizing and embossing packaging foils comprises at least two embossing rollers that are each provided with a toothing consisting of individual teeth, the pyramidal teeth having an essentially rectangular horizontal projection, and the sides of the teeth being essentially parallel and perpendicular, respectively, to the longitudinal axis of the embossing roller. In contrast to the prior art, the opening angle (α) between the radially aligned adjacent tooth flanks is smaller than the opening angle (β) between the axially aligned adjacent tooth flanks, and the tooth height in the radial direction, measured from the tooth tip to the tooth bottom, is greater than the tooth height in the axial direction measured from the tooth tip to the tooth bottom. This dimensioning and arrangement of the teeth provides an improved gearing with a reduced specific pressure as well as an improved processing of the paper part of the foil that results in its better folding, curling, and tubing behavior. | 05-12-2011 |
| 20120017660 | STEEL PLATE MANUFACTURING FACILITY AND MANUFACTURING METHOD - A facility is provided for manufacturing a steel plate excellent in steel plate shape and mechanical property while setting low cooling-water spraying performance in a descaling step and achieving uniform cooling in a cooling step. Specifically, a hot rolling mill | 01-26-2012 |
| 20120272703 | METHOD FOR ROLLING STRIP-SHAPED ROLLING STOCK, IN PARTICULAR METAL STRIP - The invention relates to a method for rolling strip-shaped rolling stock, in particular metal strip. This method is characterised substantially by the following procedure: the metal strip A exiting the pickling line passes through the two roll stands ( | 11-01-2012 |
| 20130025337 | Gasket-Oriented Steel Plate Manufacturing Method, and Gasket - A method for manufacturing a gasket-oriented steel plate excellent in elasticity and formability, to allow for reduction of a breaking elongation of the steel plate to improve a formability (punchability) and improve a proof stress of the steel plate against a repeated stress from a discharge valve to maintain a higher elasticity of the steel plate and a gasket able to withstand the repeated stress from the discharge valve. | 01-31-2013 |
| 20130205855 | Method and Production Line for Producing a Cold-Rolled Steel Flat Product from a Non-Corroding Steel - A method and a production line for producing a cold-rolled steel flat product from a hot strip with scale adhering to it and consisting of a non-corroding steel. The hot strip with scale adhering to it is cold-rolled into a steel flat product, the cold-rolled steel flat product is annealed and the annealed steel flat product is descaled. According to the invention, the cold-rolled steel flat product obtained after cold rolling the hot strip is subjected to descaling treatment in the hard-rolled state before annealing, in which the scale present on the cold-rolled steel flat product is mechanically removed. In this way, methods and production lines can be implemented, by means of which cold-rolled steel flat products can be produced cost-effectively from non-corroding steel with an improved surface finish. | 08-15-2013 |
| 20130239636 | METHOD AND DEVICES FOR CONNECTING AN ALUMINUM STRIP TO A COPPER STRIP UNDER PROTECTIVE GAS - The invention relates to a method for a firm metallurgic connection of an aluminum band with a copper band through which the two bands that are moved relative to one another in their longitudinal direction are continuously cleaned from oxides in a cleaning device under protective gas at their contact surfaces and are subsequently provided to a compression device in which the bands are pressed together with their clean surfaces and connected with another to form a one-piece band including the steps: running both bands ( | 09-19-2013 |
| 20130263634 | ROLLING MILL FOR PRODUCING STEEL FOR TUBES AND THIN STRIP - The invention relates to a rolling mill for producing metal strips, preferably steel for tubes and/or thin strip, in which the temperature control can be influenced between the finish stands Fi and Fi+1 using a rapid heating device (induction heater), characterized in that the distance between the stands Fi and Fi+1, between which a rapid heating device is arranged, is 5 to 25 m, and in addition to an induction heater, a roller flattening unit (for example, roller leveler | 10-10-2013 |
| 20130283877 | METHOD AND APPARATUS FOR PROGRESSIVELY FORGING A HARD DISK DRIVE BASE PLATE - A method and apparatus for forming a hard disk drive base plate with a sequence of progressive forging operations is described. The method may include advancing an initial hard disk drive base plate cut from an extruded sheet through a plurality of stations of a transfer die assembly. The method may also include performing a sequence of forgings on the initial hard disk drive base plate to progressively form parts on a hard disk drive base plate. | 10-31-2013 |
| 20130298626 | DESCALING NOZZLE FOR REMOVING SCALE FROM STEEL SHEET, DESCALING APPARATUS FOR REMOVING SCALE FROM STEEL SHEET, AND DESCALING METHOD FOR REMOVING SCALE FROM STEEL SHEET - Provided is a descaling nozzle that can efficiently remove scale from a steel sheet. A discharge section at an end of a descaling nozzle includes a discharge hole (main flow orifice) and a branch hole (branch flow orifice) that are connected to a large diameter portion that forms a cylindrical channel. The branch flow orifice discharges a part of water flow in the large diameter portion so that cavitation occurs at a boundary between the part of water flow discharged from the branch flow orifice and water flow that is discharged from the discharge hole. | 11-14-2013 |
| 20130305799 | ROLLING MILL ROLL-CLEANING DEVICE AND CLEANING METHOD - Generation of cavitation jet in air on a surface of a work roll provides a higher cleaning force than squirting of only high pressure fluid, so that sticking substances on the surface of the work roll are reliably removable. When a distance between a cleaning nozzle and the surface of the work roll and pressure of the high pressure fluid are controlled within a predetermined range, sticking substances are efficiently removable while roughness of the surface of the work roll is maintained. | 11-21-2013 |
| 20140013814 | METHOD AND APPARATUS FOR MANUFACTURING SI-CONTAINING COLD ROLLED STEEL SHEETS - This invention provides methods and apparatuses which can manufacture Si-containing cold rolled steel sheets exhibiting excellent chemical conversion properties even if a chemical conversion treatment solution is used at a lower temperature while minimally suppressing the generation of sludge as well as reducing running costs. The method includes steps of cold rolling a steel containing 0.5 to 3.0 mass % Si, continuously annealing the cold rolled steel sheet, pickling the surface of the continuously annealed cold rolled steel sheet, and repickling the surface of the pickled steel sheet with a non-oxidative acid. The repickling is performed such that a repickling solution is sampled continuously or periodically, an acid concentration in the sampled solution is measured, and the acid concentration in the repickling solution is regularly controlled within a prescribed concentration range. | 01-16-2014 |
| 20140047886 | STEAM-BLOCKING APPARATUS - A steam-blocking apparatus includes: a rolling mill configured to roll a material; a transfer roller disposed at a rear side of the rolling mill and configured to transfer the material from the rolling mill; a descaler disposed above the transfer roller and configured to spray wash water toward the transfer roller; a width-measuring part disposed at a rear side of the descaler and configured to measure the width of the material; and a shield disposed between the descaler and the width-measuring part and configured to prevent steam, generated from evaporation of the wash water, from being introduced into the width-measuring part. | 02-20-2014 |
| 20140230510 | METHODS OF MAINTAINING AND USING A HIGH CONCENTRATION OF DISSOLVED COPPER ON THE SURFACE OF A USEFUL ARTICLE - A method for maintaining and using a high concentration of dissolved copper on a surface of a useful article by providing a copper surface without coatings thereon, which increase the wetting angle and which isolate the copper surface and which has a surface roughness between 2 and 50 micro inches Ra, so as to kill microbes thereon. | 08-21-2014 |
| 20150135788 | APPARATUS AND METHOD FOR BENDING AND WINDING CONDUCTORS TO MAKE SUPERCONDUCTIVE COILS - The apparatus comprises a first working unit for unwinding a coil of conductor and providing straightened conductor, and a second working unit comprising a bending device arranged to bend the straightened conductor leaving the first working unit and a rotary table on which the bent conductor leaving the bending device is laid, whereby a set of turns is formed to make the superconductive coil. The rotary table is rotatably mounted about a stationary vertical axis. The bending device is mounted so as to be translatable both in a longitudinal direction coinciding with the direction of a longitudinal axis of the straightened conductor that is fed by the first working unit to the bending device and in a transverse direction perpendicular to the longitudinal direction. The first working unit is mounted so as to be translatable, along with the bending device, in the transverse direction only. | 05-21-2015 |
| 20150143862 | COLD STATE METAL PLATE STRIP SURFACE TREATMENT SYSTEM AND TREATMENT METHOD OF THE SAME - A cold state metal plate strip surface treatment system and a treatment method thereof, used for high-pressure jet-flow descaling and rinsing metal plate strips, includes a high-pressure jet-flow descaling section | 05-28-2015 |
| 20160030995 | UNCOILING, BLANKING AND FORMING METHOD - An uncoiling, blanking and forming method includes the steps of: 1) uncoiling a steel coil, wherein a steel strip uncoiled from the steel coil is cleaned and straightened and is fed by a pinch roller to a blanking region; 2) laser blanking, wherein the steel coil enters the blanking region, is cut by a laser cutting head by way of laser blanking to form sheets with a required shape, with waste materials falling down and being conveyed to the outside; 3) outputting the sheets, wherein the sheets pass over a magnetic telescopic belt conveyor, and then carried by means of a manipulator or a robot to a stamping process; 4) stamping forming, wherein the sheets are stamped to form workpieces; and 5) checking, wherein the workpieces are checked and put in storage. The present invention can achieve joining-up in series of a blanking line and a stamping forming line and realize matching therebetween, and can reduce intermediate steps such as stacking, packing, transportation, positioning, unpacking, carrying, and centring of sheets and stamping-formed workpieces, and also can reduce the room required for transfer, simplify the work flow and joins up procedures in series, to directly machine a material coil by laser blanking to form formed parts. | 02-04-2016 |
| 20160059288 | ENDLESS METAL RING MANUFACTURING METHOD AND ENDLESS METAL RING RESIN REMOVAL DEVICE - Provided is an endless metal ring manufacturing method for manufacturing an endless metal ring by carrying out a barrel polishing step for polishing the endless metal ring by using a barrel of a resin material, a rolling step for rolling the endless metal ring which was cleaned, and a nitriding step for nitriding the endless metal ring which was rolled, wherein after the barrel polishing step and before the rolling step, provided is a resin removing step for removing resin that has adhered to the endless metal ring. | 03-03-2016 |
