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公开(公告)号：US12115570B2
公开(公告)日：2024-10-15
申请号：US17425963
申请日：2020-01-30
申请人： Alleima GmbH
发明人： Tomas Froböse , Christofer Hedvall
CPC分类号： B21C1/22 , B21C37/045 , B21C37/08
摘要： The present disclosure relates to a method for producing a rod-shaped element. In order to provide a method with which it is possible to produce a rod-shaped element which overcomes at least one of the disadvantages of the rod-shaped elements known from the state of the art, it is proposed according to the invention that the method has the steps of providing a tube made of a metal, wherein the tube has a longitudinal direction, providing at least one strand with a plurality of threads, wherein at least one of the threads has carbon fibres, introducing the at least one strand into the tube, with the result that the at least one strand extends in the longitudinal direction in the tube, and cold forming the tube, together with the at least one strand, using a forming tool, with the result that an outside diameter of the tube before the cold forming is larger than the outside diameter of the tube after the cold forming.
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公开(公告)号：US11850645B2
公开(公告)日：2023-12-26
申请号：US17509043
申请日：2021-10-24
发明人： Zhibing Chu , Chun Xue , Duo Zhang , Dong Wei , Qianhua Yang , Cuirong Liu , Yugui Li
摘要： A method for preparing a multilayer metal composite pipe includes steps of: internally and externally grinding blank pipes; cleaning oil stains; assembling a multilayer metal pipe; drawing to reduce a diameter; performing high-speed friction welding at the pipe ends; performing heat treatment; performing four-roller cross-rolling; straightening; performing two-roller cold-rolling; performing cold-drawing to reduce the diameter; performing cold-expansion to reduce the diameter; performing precise cold-rolling; degreasing; brightening; performing surface grinding; cleaning dust; detecting multilayer metal interface bonding; detecting flaws; testing metal structure performance; and sizing and packaging. By cycling the cold-drawing, the cold-expansion, and the precision cold-rolling, key indicators such as product dimensional accuracy, surface quality, material properties, and crystal grain size can be collaboratively controlled, so as to achieve higher accuracy, better performance, and more outstanding extreme specifications. The present invention solves the problem of inconsistent extension due to differences in metal properties.
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公开(公告)号：US11642711B2
公开(公告)日：2023-05-09
申请号：US16466615
申请日：2016-12-06
申请人： FAE Inc.
发明人： Kosuke Takemoto , Kenichi Tashima
摘要： A drawing machine comprising: a first drawing unit that includes a first drawing die, a first upstream capstan that is provided before the first drawing die so as to deliver the metal tube to the first drawing die, and a first downstream capstan that is provided after the first drawing die so as to draw the metal tube from the first drawing die; a second drawing unit that includes a second drawing die that draws the metal tube delivered from the first drawing unit, a second upstream capstan that is provided before the second drawing die so as to deliver the metal tube to the second drawing die, and a second downstream capstan that is provided after the second drawing die so as to draw the metal tube from the second drawing die; and a tension applying section that applies a predetermined tension to the metal tube between the first drawing unit and the second drawing unit.
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公开(公告)号：US20210206529A1
公开(公告)日：2021-07-08
申请号：US17059018
申请日：2019-05-24
发明人： Kenji YANADA , Mitsuhide AIHARA
摘要： A resin-coated steel can and method for producing the same. The resin-coated steel can is produced by drawing or draw-redrawing a resin-coated steel sheet at least having a surface serving as a can inner surface coated with a biaxially-stretched polyester film and a surface serving as a can outer surface that is coated and/or printed. The biaxially-stretched polyester film on the can inner surface side wall has a crystallinity in a range of 42 to 52%, and a shrinkage (shrinkage in the can height direction upon raising the temperature from 23° C. to 130° C. at a rate of 5° C./min.) of the biaxially-stretched polyester film on the can inner surface side wall is less than 10% of the can height.
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公开(公告)号：US10907752B2
公开(公告)日：2021-02-02
申请号：US16071768
申请日：2017-01-20
发明人： Yiqi Wang , Xinyu Zhuang , Shengli Zhang , Yong Pan , Zhijun Zhang , Feng Chen
IPC分类号： F16L9/17 , B21C37/08 , B21C37/15 , B23K1/00 , B23K1/16 , F16L9/02 , B21C1/22 , B23K101/06 , B23K101/10 , B23K103/22
摘要： A pipe body, wherein the pipe body (10) has a welded portion (11) at both ends of the pipe body, aligned in a widthwise direction of the pipe body (10). The thickness of the welded portion (11) decreases gradually from the inside to the outside of the pipe, and an outer end of the welded portion (11) is located at a center portion of the pipe body (10) in a thickness direction. The configuration of the welding structure enhances the strength of the welded portion of the pipe, so that the pipe will not crack easily when it is reworked by flaring or bending, thus having high reworkability. In addition, a pipe (100) made of the pipe body (10) and a method of making the pipe (100) are disclosed.
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公开(公告)号：US10597742B2
公开(公告)日：2020-03-24
申请号：US15310085
申请日：2015-04-15
申请人： Yanshan University
发明人： Yu hui Wang , Xiao xu Huang , Tian sheng Wang , Yan Peng , Yan ming He , Ya nan Zheng , Bo Liao
IPC分类号： B21B1/02 , B21B1/30 , B21C1/00 , B21C1/22 , C21D1/18 , C21D6/00 , C21D8/02 , C21D8/10 , C21D9/08 , C22C38/00 , C22C38/04 , B21B3/02 , C21D1/26 , B21B1/22
摘要： The present invention discloses a machining technology of a low-temperature high-strength-ductility high manganese steel, high manganese steel plate, and high manganese steel tube, and a high manganese steel comprises the following components in percentage by weight: Mn 30%-36%, C 0.02%-0.06%, S≤0.01%, P≤0.008% and the balance being Fe. Smelted steel ingots are subject to solution treatment and are rolled and homogenized to obtain a high manganese steel plate or are drawn to form a high manganese steel tube. The hot-rolled or cold-rolled steel plate after being hot-rolled has tremendous application value in the fields of low-temperature applications, such as the steel plate used for a low temperature pressure container.
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公开(公告)号：US20190226569A1
公开(公告)日：2019-07-25
申请号：US16315900
申请日：2017-07-04
发明人： Yong Xi , Zhou Yang , Song Zhu , Fengwu Zhang
摘要： Engine and its camshaft, camshaft manufacturing method, the camshaft comprises a central shaft having an axial hole, the central shaft has a fitting section, the outer circumference of a cross section at any axial position of the fitting section is a polygon; a first cam and a second cam, the first cam and second cam are respectively installed on the fitting section of the central shaft and are spaced axially. Such a structure has the advantages of higher torque transmission, simpler structure, simplified manufacturing process, shorter manufacturing time consumption and reduced cost.
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8.发明授权公开(公告)号：US10232421B2
公开(公告)日：2019-03-19
申请号：US15575957
申请日：2016-05-06
发明人： Yusuke Nakaura , Yuki Hateruma
摘要： A method produces an inner spiral grooved tube using a first drawing die, a second drawing die, and a revolving flyer. The method includes two twisting-drawing steps. The first twisting-drawing step forms an intermediate twisted tube by reducing the diameter of a linear grooved tube, which has plural straight grooves formed along the longitudinal direction on its inner surface, by passing the linear grooved tube through the first drawing die and then by revolving the liner grooved tube wrapped around the revolving flyer with the revolving flyer, in conjunction with imparting twist to the linear grooved tube. The second twisting-drawing step forms the inner spiral grooved tube by reducing the diameter of the intermediate twisted tube by passing the intermediate twisted tube, which revolves with the revolving flyer, through the second drawing die in conjunction with imparting twist to the intermediate twisted tube.
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公开(公告)号：US09676016B2
公开(公告)日：2017-06-13
申请号：US14034167
申请日：2013-09-23
发明人： Charles L. Stewart
摘要： Systems, devices, and methods are described for drawing materials. In certain embodiments, the material is metal tubing that is hollow along its length. The drawing system may include a first drawing machine that is fixed or stationary and a second drawing machine that moves relative to the first drawing machine. In certain embodiments, the position of the second drawing machine is determined with respect to a desired position, wherein the second drawing machine is downstream from the first drawing machine, and wherein the material is successively drawn by the first and second drawing machines. The drawing speed of the first drawing machine may be adjusted from a first speed to a second speed based on the determined position of the second drawing machine. A programmable logic controller may be provided to control, at least in part, operations of the drawing system.
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10.发明申请公开(公告)号：US20130205861A1
公开(公告)日：2013-08-15
申请号：US13878275
申请日：2011-10-17
IPC分类号： B21C1/22
CPC分类号： B21C1/22 , B21C37/154 , F28F1/003
摘要： Provided is a method for producing a double-wall tube with braided wires at its interface in which the braided wires are interposed between an outer-wall and inner-wall blank tubes and then a drawing process is applied so as for the braided wires to be brought into close contact with the inner surface of the outer-wall tube and the outer surface of the inner-wall tube, the method comprising: polishing the inner surface of the outer-wall blank tube and the outer surface of the inner-wall blank tube so that a surface roughness thereof satisfies Ra
摘要翻译： 提供一种在其界面处制造具有编织线的双壁管的方法，其中编织线插入在外壁和内壁空白管之间，然后进行拉丝处理以使编织线为 与外壁管的内表面和内壁管的外表面紧密接触，该方法包括：抛光外壁空白管的内表面和内壁空白的外表面 使其表面粗糙度满足Ra <1.0μm，然后将编织线插入外壁和内壁空白管之间; 进行下沉拉伸处理，使得所得双壁管的外径相对于模孔直径的差异为0.1mm至0.3mm; 并进行热处理。 所生产的双壁管适合用作传热管。
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