Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21C - Manufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling; Auxiliary operations used in connection with metal-working without essentially removing material › B21C 37 - Manufacture of metal sheets, rods, wire, tubes, profilesor like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
Patents for B21C 37 - Manufacture of metal sheets, rods, wire, tubes, profilesor like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape (9,784)
05/2003
05/20/2003US6565498 Composite roll for manufacturing heat transfer tubes
05/15/2003US20030089414 Metal tube and its production method
05/14/2003EP1185386B1 Method for producing pipe bends from spirally welded, straight pipes
05/14/2003CN1418136A Tubular assembly having hydroformed interconnecting member and method for making same
05/13/2003US6561228 Helically wound lock seam tube
05/13/2003US6560835 Skiving and roller burnishing tool
05/08/2003WO2003037559A1 A process of making a shaped product
05/08/2003WO2003037539A1 Method and device for the production of hollow sections
05/08/2003US20030084948 Pipe member
05/08/2003DE10143680C1 Verfahren zur Herstellung von Metallbändern mit hochgradiger Würfeltextur Process for the preparation of metal strips with high-grade cubic texture
05/07/2003EP1308222A2 Tube welding device
05/07/2003EP1308221A2 Metal tube and its production method
05/07/2003EP1121209B1 Apparatus and method for forming a pipe with increased wall-thickness at its ends
05/07/2003EP0876228B1 Process and device for producing pipes as per the uoe-process
05/07/2003CN1416577A Method for producing oxide superconducting wire
05/07/2003CN1107561C Manufacture of bimetallic composite pipe
05/07/2003CN1107559C Process for mfg. screws and device for actuating process
05/06/2003CA2230213C A heat transfer tube and method of manufacturing same
05/02/2003EP1306143A1 Method and apparatus for the manufacturing of hollow profiles
05/02/2003EP1305124A1 A product and a method of manufacturing tubular products by exposing a tubular blank to inner pressure
05/01/2003WO2003035915A1 Method for producing monocrystalline metallic wire
05/01/2003US20030080460 Manufacturing method for double tube having a hole formed therein, and mold for implementation thereof
05/01/2003US20030079517 Method for manufacturing a hollow rack shaft
05/01/2003US20030079516 Method for manufacturing a hollow rack shaft
04/2003
04/30/2003CN2547430Y 成型机 Molding Machine
04/24/2003WO2003033200A1 Composite billet and method of manufacturing same for production of clad piping and tubing
04/24/2003WO2003033188A1 Tube and heat exchanger with tubes
04/24/2003US20030075588 Process for continuous production of longitudinally welded metal tubing
04/24/2003US20030074778 Method of manufacturing arm
04/23/2003EP1304176A2 Method for the continuous production of longitudinally seam welded metal tubes
04/23/2003EP1303394A1 Shaped contoured crushable structural members and methods for making the same
04/23/2003EP1303393A1 Contoured metal structural members and methods for making the same
04/23/2003CN1413267A Advanced alloy fiber and process of making
04/23/2003CN1412345A Process for manufacturing vacuum vapour-phase deposition composite material wire and metal wire made from it
04/23/2003CN1411983A Continuous production equipment of steel-plastics composite pipe whose internal and external surfaces of holed steel skeleton are coated with adhesive
04/23/2003CN1411924A Pack radiator and its making method
04/23/2003CN1411923A Method for continuous making longitudinal seam welding metal pipe
04/22/2003US6552480 Color cathode-ray tube
04/22/2003US6550300 Apparatus for producing annularly corrugated metal tubes
04/20/2003CA2408886A1 Process for continuous production of longitudinally welded metal tubing
04/17/2003WO2003031668A1 Tunsten wire, cathode heater, and filament for vibration service lamp
04/17/2003WO2003031091A1 Method for producing a branch pipe
04/17/2003WO2002045875A9 Integral ductwork diffuser
04/17/2003US20030072960 Manufacturing process of composite vacuum vapor-deposition material wire and wire manufactured thereby
04/17/2003US20030070279 Methods and systems for the continuous in-line coating and fabrication of spiraled steel rebar for concrete structures
04/17/2003US20030070278 Composite billet and method of manufacturing same for production of clad piping and tubing
04/16/2003EP1302435A1 A high strength telescopic arm
04/16/2003EP1301723A1 Structural members containing vibration damping mechanisms and methods for making the same
04/16/2003EP1301721A1 Coated contoured crushable structural members and methods for making the same
04/16/2003EP1301717A1 Method for producing a mechanical link
04/16/2003EP1301646A1 Metal matrix composite wires, cables, and method
04/16/2003EP1301339A1 Contoured crushable composite structural members and methods for making the same
04/16/2003EP1301337A1 Cored contoured composite structural members and methods for making the same
04/16/2003EP1301335A1 Modified contoured crushable structural members and methods for making the same
04/16/2003EP1301292A1 Method for making a structural element having a generally tubular metal wall and structural element
04/16/2003EP1301291A2 Method of manufacturing a one-piece tubular doorbeam
04/15/2003US6546779 Eyelet sizing tool for a needle/armature rotation limiting feature of a fuel injector
04/10/2003WO2003028914A1 Method of manufacturing hollow member
04/10/2003US20030066575 High-strength steel wire excelling in resistance to strain aging embrittlement and longitudinal cracking, and method for production thereof
04/10/2003DE10153688C1 Pipe welding machine has fixed base plate with carriages supporting pressure rollers to guide metal pipe to forming and welding station
04/09/2003EP1299616A1 Deformable member
04/09/2003EP1299324A1 Freestanding reactive multilayer foils
04/09/2003EP1299266A1 Method of manufacturing structural members and the members provided by such method
04/09/2003CN1409658A System and method for corrugating spiral formed pipe
04/09/2003CN1408488A Inner press roller roll type outline matching screw tube blank
04/09/2003CN1408487A Method for producing longitudinal seam welding spiral wave metal tube
04/09/2003CN1105291C Heat transfer tube having grooved inner surface and production method therefor
04/08/2003US6545246 Profiling arrangement with a roll forming machine and with a welding device
04/08/2003US6544015 Worm for an eccentric screw pump or a subsurface drilling motor
04/08/2003US6543721 Stressed-skin component made of metal
04/08/2003US6543139 Machining tool for manufacturing radial bearings, and manufacturing apparatus and manufacturing method using the same
04/08/2003US6543132 Methods of making mud motors
04/03/2003WO2003026827A1 Method for increasing the fatigue resistance of welded pipes
04/03/2003US20030064245 Clad steel rolled section for reinforcing concrete and method of production
04/03/2003US20030064165 Process for preparing copper-film-plated steel cord for vehicle tire
04/03/2003US20030062402 Method of producing steel pipes, and welded pipes
04/03/2003US20030061782 Roll formed staple-in awning frame and method
04/02/2003EP1297910A1 High-strength steel pipe excellent in formability and burst characteristics
04/02/2003EP1296801A1 Skiving and roller burnishing tool
04/02/2003EP1296782A1 Method for manufacturing of a plate involving an intermediate preforming and a final shaping
04/02/2003CN1407925A Metallurgically bonded layered article having curved surface
04/02/2003CN1407919A Process for production of industrial tubes or section bars from metal and related apparatus
04/02/2003CN1406682A Method for preparing composite metal coolcer bottom with antioxidant layer
04/02/2003CN1406681A Cold drawing precisive pipe for electrically welding magneto casing of car
04/01/2003US6539620 Method of manufacturing superalloy weld wire
03/2003
03/27/2003WO2003025240A1 Method for making rolled and welded tubes comprising a final drawing or hydroforming step and resulting rolled tube
03/27/2003WO2003024639A1 Manufacture of metal tubes
03/27/2003WO2003024637A1 Method for producing metallic strips
03/27/2003US20030056559 Method for producing longitudinally welded helically corrugated metal tubing
03/26/2003EP1295985A1 Method for making coated metallic cord
03/26/2003EP1295652A2 Method of manufacturing longitudinally welded and helically corrugated pipes
03/26/2003EP1295651A2 Method of producing steel pipes, and welded pipes
03/26/2003EP1294501A1 Method and device for producing steel, especially stainless steel press fittings.
03/26/2003EP0941372B1 Oxidation-resistant metal foil and its use
03/26/2003CN1405350A High-strength steel wire with anti-strain-ageing-brittle and anti-longitudinal-crack and manufacture method thereof
03/26/2003CN1404936A Separation-mould grooving machine
03/25/2003US6538385 Cathode-ray tube and flat electrode of electronic gun and production method
03/22/2003CA2404539A1 Method for producing longitudinally welded helically corrugated metal tubing
03/20/2003WO2003022479A1 Device for forming thin-walled material into a sleeve-shaped body
03/20/2003WO2003022091A1 Method for making elongated metal elements
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