B21D 41 - Application of procedures in order to alter the diameter of tube ends

Patents for B21D 41 - Application of procedures in order to alter the diameter of tube ends (2,982)
11/2013
11/20/2013	CN203292345U Clamping mechanism of pipe reducing machine
11/20/2013	CN103402664A Process for forming a pipe portion
11/20/2013	CN103394604A Forming machine head transmission mechanism for processing pipe tail end
11/20/2013	CN103394603A Pipe end machining device
11/14/2013	US20130298632 Expansion bullet for heat exchanger tube
11/13/2013	CN203281747U Heat collector plate core spin riveting polar tube sealing machine
11/13/2013	CN103386443A Flaring cam guide die
11/06/2013	CN203265440U Pipe contracting machine capable of automatically sending pipe
11/06/2013	CN203265439U Thin-wall metal tube pneumatic reamer
11/06/2013	CN203265438U Flaring machine for radiator
10/2013
10/30/2013	CN203253835U Pipe contracting machine
10/30/2013	CN203253834U Performing metal tube flaring tool
10/30/2013	CN203253833U Hydraulic horn mouth expansion device
10/30/2013	CN203253824U Steel tube necking mould
10/30/2013	CN203253800U Expansion head used for expanding size of inner hole of molding material
10/30/2013	CN103372615A Riveting clamping device
10/30/2013	CN103372614A Forming self-fluxing welding technological method for internal pipe head of heater exchanger cooling pipe
10/30/2013	CN103372613A Riveting device
10/30/2013	CN103372607A Flaring forming mold and method of connecting pipe
10/30/2013	CN103372579A Manufacturing process of aluminum-steel composite pipe with high thermal conductivity for petrochemical
10/23/2013	CN103370152A Method for correcting pipe end of seamless pipe formed from high-Cr stainless steel
10/23/2013	CN103357775A Necking tool
10/23/2013	CN103357774A Reducing pipe die assembly
10/23/2013	CN103357773A Clamp pressing type pipe fitting pipe end forming machine
10/23/2013	CN103357772A Pipe end forming equipment for clamp-press type pipe fitting
10/23/2013	CN103357771A Steel tube flaring device and method
10/22/2013	US8561452 Forging apparatus
10/16/2013	EP2648861A2 Methode and device for forming a pipe portion
10/16/2013	CN203235847U Automatic pipe end necking and sizing device
10/16/2013	CN203235846U Double-station sizing mill
10/16/2013	CN203235845U Expanding rounder
10/16/2013	CN203235844U Pipe end flaring and necking machine
10/16/2013	CN103350346A Power takeoff transmission shaft cold precision forging plastic forming process
10/16/2013	CN102225448B Method for machining reduced copper capillary tube used in air conditioner
10/09/2013	EP2647449A1 Hollow coil spring and method for manufacturing same
10/09/2013	CN203227756U Pipe expanding machine allowing one-time shaping of expansion port
10/09/2013	CN103341521A Method for optimization of pipe integrated numerical control machining process
10/09/2013	CN102500710B Automatic tee shaping equipment and shaping method thereof
10/08/2013	US8549751 Method of manufacturing a welded component comprising a seamless bent pipe and seamless straight pipe sections
10/03/2013	US20130255348 Oil-pressure swaging tool for rebuilding a connecting pipe
10/02/2013	EP2643625A2 Pipe element having shoulder, groove and bead and methods and apparatus for manufacture thereof
10/02/2013	CN203221149U Head twisting machine
10/02/2013	CN102389928B Tapered connecting structure for rotary pressing wheel and shaft of seamless gas bottle necking-in machine
10/01/2013	US8544309 Ostial stent flaring apparatus
09/2013
09/26/2013	WO2013139538A1 Method for producing a pressure container
09/25/2013	EP2640533A1 Holding device for a flanging tool and flanging tool for flanging pipe ends
09/25/2013	CN103317317A Welding method of pipes of air conditioning heat exchanger with different pipe diameters and clamp device
09/25/2013	CN103317041A Pointing machine
09/25/2013	CN103317040A Hydraulic forming device for guide opening of nuclear fuel storage bush
09/25/2013	CN103317039A Pneumatic reamer for thin-wall metal pipe
09/25/2013	CN103317038A Pre-molding flaring tool for metal tubes
09/24/2013	US8539807 Process for making upsets for oilfield drill pipe
09/24/2013	US8539805 Method and forming machine for manufacturing a product having various diameters
09/18/2013	CN203197137U Numerical control machine tool pipe end necking tool
09/18/2013	CN103302195A Clamping mechanism of contracting pipe machine
09/18/2013	CN103302194A Processing technique of hush pipe
09/17/2013	US8533952 Pipe flange forming method
09/11/2013	CN203184388U Horizontal-type automatic punch press
09/04/2013	CN203170858U Hollow billet reducing device for tube push bench front table
09/04/2013	CN203170814U Multi-functional combined type copper pipe machining tool
09/04/2013	CN103272956A Flexible pipe end heating pipe-expanding machine, integrated device and heating pipe-expanding method
09/04/2013	CN102172723B 封口机 Sealer
08/2013
08/28/2013	CN203156353U Metal pipe two-end forming mechanism
08/28/2013	CN203155860U Aluminum flat tube end closing-in molding device
08/28/2013	CN203155859U Drawing type expanding machine
08/28/2013	CN203155858U Expansion pipe expanding device for copper pipe in air conditioner heat exchanger
08/22/2013	WO2013123396A1 Dies for shaping containers and methods for making same
08/22/2013	WO2013122732A1 Hydraulic tube expander and method of use
08/22/2013	US20130213105 Method and apparatus for pressure expansion of tubing in coil assemblage
08/21/2013	CN203140617U Double-end closing-up machine
08/21/2013	CN203140616U Air conditioner copper coiler necking device
08/21/2013	CN102527862B Flaring machine
08/21/2013	CN102319817B Tube end closing method for dope tube
08/20/2013	US8511133 Expander for tubular elements
08/14/2013	CN203124581U Steel tube necking down mechanism
08/14/2013	CN103240357A Numerical control dedicated device for throats of liner outer interlayer
08/14/2013	CN103240348A Numerical control special device for shell body throat
08/08/2013	WO2013064143A3 Clamping element for a clamping device for fixing a tube to be flanged
08/08/2013	DE102012100894A1 Expansionskopf für Aufweitwerkzeuge, diesen umfassendes Expansionswerkzeug sowie deren Verwendung Expansion header for expansion tools, this comprehensive expansion tool and its use
08/07/2013	CN203109080U Tube end portion forming tool
08/07/2013	CN203109079U Test explosion pipe opener and test explosion machine with same
08/07/2013	CN103230978A Necking die of strengthening isolating sleeve of automobile
08/01/2013	US20130192331 Installation/processing systems, methods, and components
07/2013
07/31/2013	CN203091577U Petroleum pipeline necking jig
07/31/2013	CN203091570U Spinning closing-up machine
07/31/2013	CN203091569U Flaring device for water chamber connecting pipe
07/31/2013	CN203091567U Straight tube end clamping device for pipe expander
07/31/2013	CN103228374A Hollow coil spring and method for manufacturing same
07/25/2013	US20130186166 Tube forming machine
07/24/2013	CN203076473U Manual hydraulic reamer
07/24/2013	CN203076472U Expansion mechanism of steel pipe inner expansion chamfering machine
07/24/2013	CN103212645A Automatic necking and sizing device for tube end
07/23/2013	US8490459 Method and device for producing hollow profiled elements
07/17/2013	CN203061734U Module processing device for steel pipe end expanding machine
07/11/2013	WO2013061124A3 Manufacture method of tubular member and tubular member manufactured by the same
07/10/2013	CN203044715U Steel tube flaring and punching device
07/10/2013	CN102266893B Pipe expander
07/03/2013	EP2608935A1 Coupling parts for connecting a driving device to an expander head
07/03/2013	CN203030773U 散热器扩口设备 Radiator flaring equipment
07/03/2013	CN103182637A Tube penetrating device and method for fin type heat exchanger

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