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    SYSTEMS AND METHODS FOR PRODUCTION OF METALLURGICALLY BONDED CLAD BILLET AND PRODUCTS THEREOF, AND METALLURGICALLY BONDED CLAD BILLET
    2.
    发明申请
    SYSTEMS AND METHODS FOR PRODUCTION OF METALLURGICALLY BONDED CLAD BILLET AND PRODUCTS THEREOF, AND METALLURGICALLY BONDED CLAD BILLET 有权

    公开(公告)号：US20210268563A1

    公开(公告)日：2021-09-02

    申请号：US17325586

    申请日：2021-05-20

    Applicant: Bhaven Chakravarti

    Inventor： Bhaven Chakravarti

    IPC: B21C37/06 ,  B21C23/22 ,  B23K31/02 ,  B21C33/00 ,  B21C29/00

    Abstract: A method of producing a clad billet includes inserting a solid carbon or low-alloy steel (CS) material into a hollow interior of the slightly larger diameter (CRA) cylinder so that a standoff gap is provided between an outer surface of the (CS) material and the inner diameter of the (CRA) cylinder; providing an explosive material around the (CRA) cylinder; detonating the explosive material to collapse at least the inner diameter of the corrosion resistant alloy cylinder onto the outer surface of the solid carbon or low-alloy steel material and eliminate the standoff gap, creating at least a partial metallurgical bond at an interface with the outer surface and resulting in a composite billet assembly, and extruding the composite billet assembly to reduce its size and form the clad billet having a metallurgical bond between the (CS) material and the (CRA) cylinder.

    Seamless multilayer composite pipe
    5.
    发明授权
    Seamless multilayer composite pipe 有权
    无缝多层复合管

    公开(公告)号：US08365568B2

    公开(公告)日：2013-02-05

    申请号：US12530600

    申请日：2007-04-20

    Applicant: John Biris ,  George Hinopoulos ,  Apostolos Kaimenopoulos

    Inventor： John Biris ,  George Hinopoulos ,  Apostolos Kaimenopoulos

    IPC: B21C23/22

    CPC classification number: B21C23/30 ,  B21C23/005 ,  B29C47/0023 ,  B29C47/022

    Abstract: The present invention relates to a method of manufacturing a seamless multilayer composite pipe, an apparatus for manufacturing a seamless multilayer composite pipe, and a seamless multilayer composite pipe. The method of manufacturing a seamless multilayer composite pipe comprises the steps of a) providing a seamless metal pipe with at least one continuous layer covering its inner surface, and b) passing the seamless metal pipe through a unit in order to reduce the diameter of the seamless metal pipe by cold working. An apparatus for manufacturing a seamless multilayer composite pipe comprises a unit for providing a seamless metal pipe with at least one continuous layer covering its inner surface, and a unit for reducing the diameter of the seamless metal pipe by cold working. A seamless multilayer composite pipe comprises a seamless metal pipe with at least one continuous layer covering its inner surface, wherein the continuous layer covering the inner surface of the a seamless metal pipe is mechanically compressed.

    Abstract translation: 本发明涉及无缝多层复合管的制造方法，无缝多层复合管的制造装置以及无缝多层复合管。 制造无缝多层复合管的方法包括以下步骤：a）提供具有覆盖其内表面的至少一个连续层的无缝金属管，以及b）使无缝金属管通过单元以减小直径 无缝金属管通过冷加工。 一种无缝多层复合管的制造装置，其特征在于，具有用于提供无缝金属管的单元，所述无缝金属管具有覆盖其内表面的至少一个连续层，以及用于通过冷加工减小所述无缝金属管的直径的单元。 无缝多层复合管包括具有覆盖其内表面的至少一个连续层的无缝金属管，其中覆盖无缝金属管的内表面的连续层被机械压缩。

    Sheet processing apparatus, method of use, and plastically deformed sheet
    6.
    发明授权
    Sheet processing apparatus, method of use, and plastically deformed sheet 失效
    片材加工装置，使用方法和塑性变形片材

    公开(公告)号：US07552611B2

    公开(公告)日：2009-06-30

    申请号：US11871292

    申请日：2007-10-12

    Applicant: Leonid C. Lev ,  Ravi Verma

    Inventor： Leonid C. Lev ,  Ravi Verma

    IPC: B21C23/22 ,  B21C33/00

    CPC classification number: B21C23/01 ,  B21B1/22 ,  B21B1/222 ,  B21B1/227 ,  B21B3/00 ,  B21B3/02 ,  B21B13/00 ,  B21B27/00 ,  B21B45/0251 ,  B21B45/0263 ,  B21B2003/001 ,  B21B2015/0078 ,  B21C23/005 ,  B21C37/02

    Abstract: An apparatus for plastically deforming a work piece in the form of a sheet, comprising at least two cylindrical guide rolls rotatable in a first direction, each of said cylindrical guide rolls having an outer circumference; a bendable strip having a portion of at least one surface in communication with a portion of the outer circumference of each of the at least two guide rollers, said bendable strip being capable of motion around the at least two guide rollers in the first direction and exerting a force upon a work piece, a first cylindrical feeding roll rotatable in a second direction opposite to the first direction, said first cylindrical feeding roll having an outer circumference, a plastic deformation passage having a first surface and a second surface, at least a portion of the first surface being defined by a portion of the bendable strip, and at least a portion of the second surface being defined by the outer circumference of the first cylindrical feeding roll, wherein one or both of the bendable strip and the cylindrical feeding roll, when in motion, propel the work piece through the plastic deformation passage wherein it is plastically deformed.

    Abstract translation: 一种用于使片材形式的工件塑性变形的装置，包括可沿第一方向旋转的至少两个圆柱形引导辊，每个所述圆柱形导辊具有外圆周; 至少一个表面的至少一个表面的一部分与所述至少两个导辊中的每一个的所述外圆周的一部分连通的可弯曲条，所述可弯曲条能够沿所述第一方向围绕所述至少两个导辊运动，并施加 在工件上的力，可沿与第一方向相反的第二方向旋转的第一圆柱形进给辊，所述第一圆柱形进给辊具有外圆周，具有第一表面和第二表面的塑性变形通道，至少一部分 所述第一表面由所述可弯曲条的一部分限定，并且所述第二表面的至少一部分由所述第一圆柱形进给辊的外周限定，其中所述可弯曲条和所述圆柱形进给辊中的一个或两个， 当运动时，推动工件通过其塑性变形的塑性变形通道。

    Method and device for producing a hard metal tool
    7.
    发明授权
    Method and device for producing a hard metal tool 有权
    用于生产硬质金属工具的方法和装置

    公开(公告)号：US07204117B2

    公开(公告)日：2007-04-17

    申请号：US10541172

    申请日：2003-12-24

    Applicant: Arno Friedrichs

    Inventor： Arno Friedrichs

    IPC: B21C23/22

    CPC classification number: B21C23/22

    Abstract: The method has a first material of lesser hardness acting as a rod-shaped carrier for a second material of greater hardness, each materials formed within a respective extrusion press tool and the plastic mass flow of the greater hardness material fed to the extrusion press tool for the lesser hardness material for providing a common plastic mass flow in the form of a rod-shaped body with a core and an outer region. An Independent claim for a device for manufacture of a hard metal workpiece is also included.

    Abstract translation: 该方法具有较小硬度的第一材料，用作具有较高硬度的第二材料的棒状载体，每种材料形成在相应的挤压机工具内，并且较大硬度材料的塑料质量流量供给到挤压机工具 用于提供具有芯和外部区域的杆状体形式的普通塑料质量流的较小硬度材料。 还包括用于制造硬质金属工件的装置的独立权利要求。

    Composite tube for ethylene pyrolysis furnace and methods of manufacture and joining same
    10.
    发明申请
    Composite tube for ethylene pyrolysis furnace and methods of manufacture and joining same 审中-公开
    用于乙烯热解炉的复合管及其制造和连接方法

    公开(公告)号：US20050058851A1

    公开(公告)日：2005-03-17

    申请号：US10662722

    申请日：2003-09-15

    Applicant: Gaylord Smith ,  Brian Baker ,  Michael Fahrmann ,  Mark Harper

    Inventor： Gaylord Smith ,  Brian Baker ,  Michael Fahrmann ,  Mark Harper

    IPC: B21C23/22 ,  B21C37/06 ,  B21C37/15 ,  B22F3/16 ,  B22F7/08 ,  B23K9/00 ,  B23K35/30 ,  C10G9/20 ,  F16L9/02 ,  B32B15/18 ,  B32B1/08

    CPC classification number: B22F3/162 ,  B21C23/22 ,  B21C33/004 ,  B21C37/06 ,  B21C37/154 ,  B22F7/08 ,  B22F2003/208 ,  B22F2009/041 ,  B22F2998/00 ,  B22F2998/10 ,  B23K9/0026 ,  B23K35/308 ,  B23K35/3086 ,  C10G9/203 ,  F16L9/02 ,  Y10T428/12937 ,  Y10T428/12965 ,  Y10T428/12979 ,  B22F9/04 ,  B22F3/20 ,  B22F3/16

    Abstract: A process for making a composite tube uniquely suited for use in ethylene pyrolysis furnaces wherein the tube comprises an outer shell made from a wrought or cast Fe—Ni—Cr heat resistant alloy and an inner core made from INCOLOY® alloy MA956 powder. The outer shell and powder core are heated and simultaneously extruded to form a composite tube. The process is carried out at temperature, and time at temperature, preferably less than 1200° C. so as to prevent recrystalization of the very fine grain structure in the alloy MA956. This un-recrystalized fine grain structure permits pilgering and/or cold drawing of the extruded composite tube to final size. The composite tube provided by the present invention is uniquely suited for use in the petrochemical and chemical process industries, so as to increase the efficiency and productivity of their respective processes. The thin core layer of alloy MA956 provides high resistance to carburization and coke formation heretofore caused by the hydrocarbon feedstock flowing through the composite tube, while the outer shell of Fe—Ni—Cr heat resistant alloy provides overall strength and rigidity to the tube. The use of the outer shell in the composite tube also solves the joining problem heretofore encountered in joining alloy MA956. A root pass or passes using an alloy MA956 filler metal followed by overlay welding passes using a filler metal compatible with the heat resistant alloy, such as INCONEL alloy 617 or FM 25/35, joins the outer shells of adjoining composite tubes and, thus, solves the welding problem.

    Abstract translation: 一种制造独特地适用于乙烯热解炉的复合管的方法，其中管包括由锻造或铸造的Fe-Ni-Cr耐热合金制成的外壳和由INCOLOY合金MA956粉末制成的内芯。 将外壳和粉末芯加热并同时挤出以形成复合管。 该过程在温度和时间在温度下进行，优选低于1200℃，以防止合金MA956中极细晶粒结构的再结晶。 这种未重结晶的细晶粒结构允许将挤出的复合管的拉拔和/或拉伸成最终尺寸。 本发明提供的复合管独特地适用于石化和化工过程工业，从而提高其各自工艺的效率和生产率。 合金MA956的薄芯层对于渗透复合管的烃原料造成的渗碳和焦炭形成具有高的抵抗力，而Fe-Ni-Cr耐热合金的外壳则提供了对管的整体强度和刚性。 在复合管中使用外壳也解决了在接合合金MA956中遇到的连接问题。 使用合金MA956填充金属进行通过或通过，然后使用与耐热合金（例如INCONEL合金617或FM 25/35）相容的填充金属进行覆盖焊接，连接相邻复合管的外壳， 解决焊接问题。

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