| Patents for B21D 3 - Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts (4,094) |
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| 07/03/2013 | CN102240716B Bending and horizontal type reshaping method of high-pressure bend |
| 07/02/2013 | US8474292 Straightening a tube on an expander |
| 07/02/2013 | CA2726132C Method for producing a large steel tube |
| 07/02/2013 | CA2639848C Variable diameter pipe expander |
| 06/27/2013 | WO2013094246A1 Method for manufacturing liquid cooling jacket |
| 06/26/2013 | CN203018633U Inclined roller straightening machine feeding material poking mechanism capable of converting rectilinear motion into rotary oscillation |
| 06/26/2013 | CN203018500U Small hydraulic straightening device for nodular cast iron pipe |
| 06/26/2013 | CN203018499U Member bar hydro-leveling device |
| 06/26/2013 | CN203018498U Reclamation device for axles |
| 06/26/2013 | CN203018497U Rack of shaping machine at end part of protection sleeve |
| 06/26/2013 | CN203018496U Shaping mechanism of shaping machine at end part of protection sleeve |
| 06/26/2013 | CN203018495U Shaping base frame of shaping machine at end part of protection sleeve |
| 06/26/2013 | CN203018494U Steel pipe straightening tool |
| 06/26/2013 | CN103170551A Air-conditioner heat dissipation copper pipe drawing-inserting mechanism |
| 06/26/2013 | CN103170529A Air-conditioner heat dissipation copper pipe end opening aligning device |
| 06/19/2013 | CN203009592U Roundness correction bearing unit for copper pipes and copper pipe roundness correcting device thereof |
| 06/19/2013 | CN203009591U Bearing unit for straightening copper pipes and copper pipe straightening device thereof |
| 06/19/2013 | CN203002862U Horizontal-type thick-wall steel tube pressure straightening machine steel tube anti-rotating device |
| 06/19/2013 | CN203002861U Steel rail straightening working roll axial direction adjusting device |
| 06/19/2013 | CN203002860U Angle steel reshaping device and angle steel production system utilizing the same |
| 06/19/2013 | CN103160755A Straightening roller for straightening round steel bar material |
| 06/19/2013 | CN103157702A Straightening control method of bending end portion of heavy rail |
| 06/19/2013 | CN103157701A Straightening machine with hydraulic spring loop |
| 06/19/2013 | CN103157700A Section bar correction equipment |
| 06/19/2013 | CN103157699A Three-dimensional numerical control straightening method and device using the same |
| 06/19/2013 | CN103157663A Extruded tube sizing straightening device |
| 06/19/2013 | CN102357566B Straightening mechanism of construction steel pipe derusting and straightening painting machine |
| 06/19/2013 | CN102335682B Online detecting and straightening equipment and method of straightness of pipe end of drill pipe |
| 06/12/2013 | EP2602432A1 Apparatus and method for the forming of turbine vane cover plates |
| 06/12/2013 | EP2602431A1 Device and method for the forming of a cover plate of a vane |
| 06/12/2013 | EP2600991A1 Method and apparatus for correcting twist stresses in metal rods |
| 06/12/2013 | CN202984358U Section bar shaping device |
| 06/12/2013 | CN202984357U Steel plate straightening horizontal compression roller device for welding H-shaped steel |
| 06/12/2013 | CN202984356U Concentricity adjusting device for thin-walled tubes |
| 06/12/2013 | CN202984350U Stretching unbender chain transmission lifting pin mechanism with guide |
| 06/12/2013 | CN103143596A Titanium pipe straightening machine |
| 06/12/2013 | CN103143595A Portable straightening mechanism of multi-station cold header |
| 06/12/2013 | CN101947574B Steel pipe correction machine |
| 06/11/2013 | US8459086 Process for producing a die |
| 06/05/2013 | EP2598666A1 Hot stretch straightening of high strength alpha/beta processed titanium |
| 06/05/2013 | CN202963208U Stainless steel pipe shaping mold and stainless steel pipe integral shaping tool |
| 06/05/2013 | CN202963117U Steel structure straightening machine |
| 06/05/2013 | CN202963116U Structural steel straightening roll quick alignment locking device |
| 06/05/2013 | CN202963115U Movable scaffolding pipe straightening device |
| 06/05/2013 | CN202963114U Steel tube straightening device |
| 06/05/2013 | CN202963113U Circular tube radian rectification tool |
| 06/05/2013 | CN103128138A Die pressing circle rectifying machine of cylinder pressing panel |
| 06/05/2013 | CN103128137A Straightening machine |
| 06/05/2013 | CN103128136A Method of eliminating bending deflection of tufftriding forged steel crank shaft |
| 06/05/2013 | CN102423775B Automatic turning device of guide rail for straightener |
| 06/05/2013 | CN102343383B Method and device for correcting drum waist deformation during rolling of cylindrical body |
| 06/05/2013 | CN102327931B Pressurized overload protection device of straightening machine |
| 06/05/2013 | CN102198457B Method and tool for straightening bending deformation of crankshaft |
| 05/29/2013 | CN202951748U Bending and shaping hydraulic machine for forging and processing coupler yoke |
| 05/29/2013 | CN202951734U Ultra-short U-shaped bolt correction workbench |
| 05/29/2013 | CN103121050A Correction platform of hydraulic pressure cold bending pipe |
| 05/29/2013 | CN103121049A Diagonal roll tubing straightener oil coating device with function of auxiliary straightening |
| 05/29/2013 | CN101979173B Hydraulic straightening device |
| 05/22/2013 | CN202943520U Quick all-sided coil pipe polishing device |
| 05/22/2013 | CN202943112U Circle supporting correction tool device |
| 05/22/2013 | CN103111495A Square shaft straightener |
| 05/16/2013 | US20130118420 Heat transfer tube for steam generator and method for producing the same |
| 05/15/2013 | CN202933981U Thermal forming die for titanium alloy sheet metal drum part |
| 05/15/2013 | CN202933980U Spiral pressure straightener |
| 05/15/2013 | CN202933979U Straightening machine |
| 05/15/2013 | CN202933978U Hydraulic tube bending corrector |
| 05/15/2013 | CN202933977U Cross section deformation correcting device for H-shaped steel |
| 05/10/2013 | WO2013064882A1 Method and apparatus for rolling a section bar |
| 05/08/2013 | CN202921703U Upper roll and lower roll interval regulation mechanism for tiny reducing double-diameter metal pipe bar straightening machine |
| 05/08/2013 | CN202921702U Clamping device of straightening machine |
| 05/08/2013 | CN202921701U Workpiece support device for straightener |
| 05/08/2013 | CN103097050A Gripper head for gripping arrangements for manipulating long workpieces, device for feeding long workpieces into and removing same from a processing machine and method for bend-straightening long workpieces |
| 05/08/2013 | CN103084438A Straightening round-tuning machine for tubular product and method thereof |
| 05/08/2013 | CN103084437A Shape-righting device for weld joint edge angle |
| 05/01/2013 | EP2587206A1 Heat transfer tube for steam generator and method for producing same |
| 05/01/2013 | CN202910116U Grid-type deep cavity tapered structural component quantity increasing and roundness correction device |
| 05/01/2013 | CN202910115U Full-automatic horizontal-type pressure straightening machine |
| 05/01/2013 | CN202910114U Buffer servo chain support device |
| 05/01/2013 | CN202910113U Cross beam adjusting device |
| 05/01/2013 | CN202910112U Cylinder machining size correction tool |
| 05/01/2013 | CN103071703A Section steel straightening device and method |
| 05/01/2013 | CN102172676B Position switching mechanism of circle calibration and straightening device for long U pipe bender |
| 04/30/2013 | US8429944 Method of making wire support |
| 04/25/2013 | US20130098687 Wear and buckling resistant drill pipe |
| 04/25/2013 | DE102011116542A1 Producing linear weak point in flat decorative material e.g. piece of leather, by diagonally setting the material to a machining direction in an active region to obtain different weakness depth profile to left and right of weakness line |
| 04/24/2013 | CN202893997U Cardan joint inner cavity bottom fillet shaping die |
| 04/24/2013 | CN202893905U Hydraulic type drying cylinder rolling machine |
| 04/24/2013 | CN202893904U Reshaping mechanism installed on round work piece of press machine |
| 04/24/2013 | CN202893903U Drilling tool straightening device |
| 04/24/2013 | CN202893902U Bar online straightening device |
| 04/24/2013 | CN202893901U Steel tube straightening machine |
| 04/24/2013 | CN202893900U Thin-wall pipe fitting straightening device |
| 04/24/2013 | CN202893899U Slide mechanism for straightening roller of straightener |
| 04/24/2013 | CN202893898U Hydraulic type twitch roller rolling machine |
| 04/24/2013 | CN202893897U 校直装置 Straightening device |
| 04/24/2013 | CN103056199A Method and system for adjusting and controlling speed of strengthening roll of horizontal roll type straightening machine |
| 04/24/2013 | CN102172678B Steel pipe finishing machine |
| 04/24/2013 | CN102069111B Horizontal adaptive mechanical precision straightening device for linear bars and method therefor |
| 04/23/2013 | US8424361 Pittsburgh lock opening tool |
| 04/17/2013 | CN202877285U Steel pipe end rounding device |