Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21B - Rolling of metal › B21B 19 - Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
Patents for B21B 19 - Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work (1,478)
03/2015
03/04/2015EP2842645A1 Plug used in piercing machine
02/2015
02/25/2015EP2839891A1 Method for producing plug for heat formed pipe
02/25/2015EP2839890A1 Round billet for seamless metal tube and method for producing seamless metal tube
02/19/2015DE102007041992B4 Vorrichtung zum Schrägwalzen von rohr- oder stabförmigem Walzgut Apparatus for rotary forging of tubular or rod-shaped rolling
02/18/2015EP2837434A1 Plug used in piercing machine and plug regeneration method
02/10/2015CA2572157C Ni base alloy pipe stock and method for manufacturing the same
02/04/2015CN204135064U 一种钢管热扩径设备 Thermal expansion device for a steel pipe diameter
02/04/2015CN104324944A 具有辊距在线调整功能的二辊无缝钢管轧机 With a roll away line adjustment feature two seamless pipe mill roll
02/04/2015CN104324941A 一种穿孔顶杆装置及其使用方法 An ejector apparatus and method of use perforated
01/2015
01/29/2015WO2015011917A1 Low-alloy steel pipe for oil well and production method therefor
01/28/2015CN104307875A 一种四辊旋转轧机 A four-roll mill rotation
01/21/2015CN204107984U 穿制钢管专用顶头 Wear special head pipe system
01/21/2015CN102989774B 组合式三辊连轧机 Combined three-roll mill
01/21/2015CN102688888B 螺杆泵定子或转子的轧制工艺 Rolling process or screw rotor stator
01/14/2015CN104284741A 穿孔轧制用顶头的制造方法 Piercing and rolling method for producing the plug
01/07/2015CN104271274A 穿孔轧制用芯棒的制造方法 Piercing and rolling method for producing a mandrel bar
01/07/2015CN104259209A 一种四辊驱动的热轧无缝方形钢管定径机 A four-roll drive square hot-rolled seamless steel pipe sizing mill
01/07/2015CN104259208A 一种四辊斜轧穿孔机 A four-roll rotary piercing machine
01/07/2015CN104259207A 热轧无缝钢管二辊斜轧穿孔工艺 Hot-rolled seamless two-roll rotary piercing process
01/07/2015CN104259206A 一种用于油管接箍的钛合金无缝管的生产方法 A seamless titanium tubing coupling method for production
01/01/2015US20150000363 Rolling stand with non skewed working rolls with a roll preloading device
12/2014
12/31/2014CN204052363U 一种有锥齿轮传动的热轧无缝方形钢管定径机 A kind of bevel gear hot-rolled seamless steel pipe sizing mill square
12/31/2014CN204052362U 一种轧管机的斜轧辊装置 Oblique roll apparatus of a rolling machine
12/31/2014CN104254407A 用于穿孔机的顶头 Head for the puncher
12/31/2014CN103008348B 斜轧轧管机组 Oblique rolling pipe mill
12/24/2014CN204035188U 无缝钢管穿孔机 Seamless Steel puncher
12/24/2014CN204035187U 一种无缝钢管穿孔机 One kind of seamless steel puncher
12/24/2014CN104245170A 穿孔轧制用顶头的制造设备 Piercing and rolling using the plug manufacturing apparatus
12/24/2014CN104245168A 无缝金属管用圆坯和无缝金属管的制造方法 Seamless metal tubes manufacturing method round billet and seamless metal tubes
12/24/2014CN104245167A 用于穿孔机的顶头和顶头的再生方法 Regeneration method puncher's head and head for
12/17/2014CN204018392U 一种穿孔装置的冷却机构 A cooling body piercing device
12/17/2014CN204018391U 穿孔装置的冷却机构 Cooling mechanism perforation means
12/17/2014CN204018368U 一种穿孔机顶杆装置及其穿孔机 One kind of puncher ejector device and puncher
12/17/2014CN204018367U 一种带下料装置的无缝钢管穿孔机 Seamless Steel puncher taken off a feeding device
12/17/2014CN104213069A 一种穿孔顶头及其表面处理方法 An immediate and surface treatment methods perforation
12/17/2014CN103272845B 小口径特薄壁无缝钢管热轧工艺 Small-caliber special thin-walled seamless steel hot rolling process
12/17/2014CN102873100B 三辊全浮芯棒连轧管机及其轧制工艺 Three rolls full floating mandrel mill and rolling process
12/10/2014CN203991664U 一种顶头 One kind of head
12/10/2014CN203991663U 钢管快速减径机 Quick cut steel mill
12/10/2014CN203991662U 新型穿孔减径设备 The new perforated reducing equipment
12/09/2014US8904840 Method for manufacturing coating rod
12/09/2014US8904839 Method of and rolling mill for making seamless steel pipe
10/2014
10/21/2014US8863564 Lubricant composition for hot metal working and method of hot metal working using the same
09/2014
09/11/2014US20140250965 Method of producing seamless metal pipe
09/10/2014EP2774695A1 Boring device, plug used in boring device, and method for manufacturing steamless steel pipe
08/2014
08/13/2014CN203764640U 四辊定减径机 Four roller set reducing mill
08/13/2014CN103978038A 一种供冷轧或冷拔的不锈钢无缝钢管管坯的生产方法 One kind or for cold-rolled stainless steel cold drawn seamless steel tube production methods
08/13/2014CN102773258B 小口径厚壁无缝钢管大减径比张力减径工艺及其设计方法 Small-diameter seamless steel pipe diameter ratio greatly reduced tension-reducing technology and design methods
08/12/2014US8800334 Rolling mill of rotating expander type for tubular bodies with tip-stabilizing system
08/06/2014CN203751003U 一种可调隙的齿轮连杆机构定心辊装置 An adjustable gap gear linkage mechanism centering roller device
08/06/2014CN203750995U 一种三辊穿孔机顶头 A three-roll piercing machine head
08/06/2014CN203750991U 张力减径轧制钢管的装置 Stretch reducing rolling steel device
08/06/2014CN203750990U 一种三辊穿孔机轧辊 A three-roll piercing mill rolls
08/06/2014CN103962379A 一种均压穿孔顶头 One kind of equalizing piercing plug
07/2014
07/30/2014CN103949474A 一种薄壁奥氏体不锈钢无缝钢管斜轧润滑的方法 An austenitic stainless steel seamless thin-walled cross rolling lubrication method
07/30/2014CN102773303B 一种铜镍合金大规格厚壁无缝管材制造工艺 A copper-nickel alloy large thick-walled seamless pipe manufacturing process specifications
07/24/2014WO2014112865A1 A method of producing a unitary pipe having a combination of square and circular cross sections
07/22/2014US8783085 Method for straightening tube and straightening roll
07/17/2014WO2014045140A3 Rolling plant, rolling milll and rolling method
07/16/2014EP2754508A1 Seamless-metal-pipe manufacturing method
07/09/2014EP2752253A1 Seamless-metal-pipe manufacturing method
07/09/2014CN203695602U 一种减径机棒芯装置 One kind of reducing mill cob device
07/09/2014CN103917308A 穿孔装置、穿孔装置所使用的芯棒以及无缝钢管的制造方法 Mandrel piercing means piercing means used and the method of manufacturing a seamless steel pipe
07/09/2014CN103917307A 无缝金属管的制造方法 The method of manufacturing seamless metal tubes
07/09/2014CN103909111A 一种钛合金无缝管及其生产方法 Titanium and its production method for seamless pipe production
07/02/2014CN203678844U 一种表面强化无缝钢管轧机穿孔顶头 A surface piercing plug strengthen seamless pipe mill
07/02/2014CN203678843U 一种多辊旋转轧机装置 A multi-roll mill rotating device
07/02/2014CN203678842U 一种四辊旋转穿孔机装置 A four-roll rotary piercing mill equipment
07/02/2014CN103906584A 无缝金属管的制造方法 The method of manufacturing seamless metal tubes
07/02/2014CN103894419A 一种穿孔顶头快速连接装置 One kind of piercing plug quick connect device
07/02/2014CN102649211B 不锈钢无缝钢管的制造方法 Stainless steel seamless steel pipe manufacturing method
06/2014
06/25/2014CN102500619B 一种无缝钛焊管及生产方法 A seamless titanium pipe and production methods
06/11/2014EP2739758A1 Controlled rolling method of seamless steel tube excellent in strength and low-temperature toughness
06/11/2014CN103846280A Tube rolling technology
06/11/2014CN102341193B Plug, piercing rolling apparatus and method of manufacturing seamless tube using the same
05/2014
05/15/2014DE102012107041B4 Verfahren und Vorrichtung zur Herstellung eines metallischen Hohlblockes aus einem metallischen Block Method and apparatus for producing a metallic hollow block made of a metallic block
05/14/2014CN103785685A 四辊定减径机 Four roller set reducing mill
05/14/2014CN102548677B 拉回式芯棒式无缝管轧机及管材的轧制方法 The method of rolling back type mandrel mill and pipe
05/08/2014WO2014067514A1 Method and device for producing seamless steel pipes having low eccentricity
05/07/2014CN203578395U 锥形穿孔机的入口导套装置 Inlet guide sleeve means cone piercing mill
05/07/2014CN203578351U 穿孔机顶杆线外全水冷装置 Puncher ejector cooling device outside the line of the whole
05/07/2014CN102671955B 可手动调整辊缝的定径机 You can manually adjust the roll gap sizing mill
04/2014
04/30/2014CN203565471U Four-roller continuous rolling pipe mill
04/23/2014CN103736737A Horizontal perforator frame with automatic disassembling, assembling and locking device
04/23/2014CN103736733A Push cross-rolling device and method for thickening steel pipe partly
04/23/2014CN103736732A Machining method of cogging extrusion of large diameter steel pipe
04/22/2014US8701455 Method for manufacturing a high alloy pipe
04/16/2014CN203541078U Sizing device capable of removing inner stress of high-strength transmission shaft pipe
04/16/2014CN103722016A Oblique pipe rolling mill inlet platform
04/16/2014CN102658296B Mill thrust car with online automatically changeable mandril and automatic change method of mandril
04/09/2014CN103706665A Method for manufacturing bimetal composite pipe by cross piercing process
04/09/2014CN103706640A Manufacturing method of nickel-based alloy tube
04/03/2014WO2014048670A1 Deoxidation of cross-rolled hollow blocks
04/02/2014CN102343364B Three-roller rotary sizing mill
03/2014
03/27/2014WO2014045140A2 Improvement to a rolling plant
03/19/2014CN103649344A Controlled rolling method of seamless steel tube excellent in strength and low-temperature toughness
03/19/2014CN102513359B Seamless steel tube perforator piercing point on-line regulating device
03/19/2014CN102513358B Hydraulic control system of drum locking cylinder of hot rolled seamless steel tube perforator
03/18/2014US8671728 Forming and/or cutting plate workpieces
03/12/2014CN203470490U Receiving trough of steel tube perforator
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