公开(公告)号：US4175419A

公开(公告)日：1979-11-27

申请号：US891958

申请日：1978-03-31

Applicant: Thomas L. Mabery

Inventor： Thomas L. Mabery

IPC: B21D7/00 ,  B21C37/28 ,  B21D7/03

CPC classification number: B21C37/283 ,  Y10T29/49387 ,  Y10T29/49391

Abstract: An apparatus for reducing the radius of the bend in a U-shaped tube comprises two squeeze dies and a back die. The back die is hollowed to form a chamber that accommodates the bent section of the tube and supports the entire circumference of the tube at the center of the bent section. Mating slide surfaces on the back die and the squeeze dies cooperate to extend the back die during squeezing in such a manner as to accommodate the longitudinal extension of the tube legs that results from the squeezing; i.e., there is no relative longitudinal movement between the squeeze dies and the tube legs. This arrangement enables relatively thin-walled tubes to be squeezed without undue deformation of the tube.

Abstract translation: 用于减小U形管中的弯曲半径的装置包括两个挤压模和后模。 后模具是中空的，以形成容纳管的弯曲部分并且在弯曲部分的中心处支撑管的整个圆周的室。 在后模具上的接合滑动表面和挤压模具协作以在挤压期间延伸后模具以适应由挤压产生的管腿的纵向延伸; 即挤压模和管腿之间没有相对的纵向运动。 这种布置使得能够挤压相对薄壁的管而不会使管的过度变形。

公开(公告)号：US4314130A

公开(公告)日：1982-02-02

申请号：US73969

申请日：1979-09-10

Applicant: Thomas L. Mabery ,  Francis B. Jackson

Inventor： Thomas L. Mabery ,  Francis B. Jackson

IPC: B23P15/26 ,  B21D53/06 ,  B23K11/32

CPC classification number: B23P15/26 ,  Y10T29/49384

Abstract: A method of providing tubes of the type intended primarily for use in boilers with a variably rifled interior surface. The function of the latter surface is to create turbulence within the tube operative to break up the laminar flow of the water or steam flowing therethrough so as to thereby promote more efficient heat transfer during steam generation and so as to minimize the susceptibility of the tube to overheat due to the effects of nucleate boiling. The subject method, which is predicated upon a determination of the rifled pattern that is required to provide the boiler tube with the desired heat transfer characteristics, includes the steps of providing a tube that it is desired to furnish with variable rifling, supporting the tube for rotation relative to the longitudinal axis thereof; providing a length of wire that is to be made to embody the configuration of the pattern of variable rifling desired; providing means for affixing the wire to the surface of the inner wall of the tube; inserting the length of wire into the tube interior while simultaneously effecting the rotation of the tube so as to thereby cause the wire to adopt the configuration of the pattern of variable rifling with which it is desired to provide the tube; and concomitant with the formation of a pattern of variable rifling with the length of wire, effecting the affixation of the wire to the inner wall of the tube so that the wire, when secured in place, embodies the configuration of the pattern of variable rifling that is sought to be provided in the tube.

Abstract translation: 一种提供主要用于具有可变膛线内表面的锅炉的类型的管的方法。 后一个表面的功能是在管内产生湍流，以操作以破坏流过其中的水或蒸汽的层流，从而促进在蒸汽产生期间更有效的热传递，并且使管的易感性最小化 由于核沸腾的影响，过热。 基于确定提供锅炉管所需的传热特性所需的膛线图案的主题方法包括提供管子的步骤，所述管子期望配备可变的膛线，将管支撑 相对于其纵向轴线的旋转; 提供一定长度的导线，以实现所需的可变膛线图案的构造; 提供用于将线固定到管的内壁的表面的装置; 将管的长度插入管内，同时实现管的旋转，从而使导线采用想要提供管的可变膛线图案的构造; 并且伴随着具有长度的线的可变膛线的形式的形成，从而将线固定到管的内壁，使得当固定在适当位置时，线体现了可变膛线图案的配置，其中 试图设置在管中。

公开(公告)号：US4270690A

公开(公告)日：1981-06-02

申请号：US73968

申请日：1979-09-10

Applicant: Thomas L. Mabery ,  Francis B. Jackson

Inventor： Thomas L. Mabery ,  Francis B. Jackson

IPC: B21C37/15 ,  B21C37/20 ,  B21C37/26 ,  F16L9/02 ,  F28F1/40 ,  F28F13/12 ,  B23P15/26

CPC classification number: B21C37/26 ,  B21C37/153 ,  B21C37/207 ,  F16L9/02 ,  F28F1/40 ,  F28F13/12 ,  Y10T29/49382

Abstract: A method of providing tubes, of the type intended primarily for use in boilers, with a variably rifled interior surface. The function of the latter surface is to create a turbulence within the tube operative to break up laminar flow of the water or steam flowing therethrough so as to thereby promote more efficient heat transfer during steam generation and so as to prevent overheating of the tube. The subject method includes the steps of providing a suitably dimensioned, smooth surface, hardened mandrel; wrapping a wire-like member on the hardened mandrel so as to form thereon a reverse image of the desired, variably patterned tube rifling; inserting the hardened mandrel into a tube; with the hardened mandrel so positioned in the tube producing a reduction in the tube diameter so as to cause the wire-like member to become embedded in the inner wall of the tube; and thereafter withdrawing the hardened mandrel from the tube while leaving the wire-like member embedded in the tube inner wall. In accord with this form of the invention, the ends of the wire-like member are preferably tack welded in place to prevent the dislodgment thereof. In accord with another form of the invention, the wire-like member subsequent to the withdrawal of the hardened member from the tube is also withdrawn therefrom leaving an impression thereof in the tube inner wall that is operative to effect the introduction of the turbulence, which is desired, into fluid flowing through the tube.

Abstract translation: 提供主要用于锅炉的类型的管的方法，其具有可变的内流表面。 后一个表面的功能是在管内产生湍流，其操作以分解流过其中的水或蒸汽的层流，从而在蒸汽产生期间促进更有效的热传递，从而防止管的过热。 本发明的方法包括提供适当尺寸的光滑表面硬化心轴的步骤; 将线状构件缠绕在硬化心轴上，以便在其上形成所需可变图案管膛线的反向图像; 将硬化的心轴插入管中; 其中硬化的心轴如此定位在管中，导致管直径的减小，从而使线状构件嵌入在管的内壁中; 然后从管中取出硬化的心轴，同时留下嵌入在管内壁中的线状构件。 根据本发明的这种形式，线状构件的端部优选地被定位焊接到位以防止其脱离。 根据本发明的另一种形式，在将淬火构件从管中取出之后的线状构件也被抽出，从而在管内壁中留下一种印象，其可操作以实现湍流的引入， 是流入管中的流体。

公开(公告)号：US4212183A

公开(公告)日：1980-07-15

申请号：US968523

申请日：1978-12-11

Applicant: Thomas L. Mabery

Inventor： Thomas L. Mabery

IPC: B21D41/02 ,  B21D41/00 ,  B21J5/08 ,  B21J9/06 ,  B21K21/12

CPC classification number: B21D41/00 ,  B21J9/06

Abstract: A method and apparatus for upsetting a tube end using a one-piece upset die. The tube is heated at the end to be upset and secured in a gripper clamp so as to remain stationary during the upset operation. The upset die is hydrualically forced over the tube end and a mandrel is hydraulically positioned into the tube end. A longitudinal compressive force is then hydraulically applied to upset the tube end. The upset die is hydraulically pulled off the upset tube and thereby accomplishing removal of the tube from the one-piece die without damage to the tube or the die.

Abstract translation: 一种用于使用一片镦粗模具镦锻管端的方法和装置。 管在末端加热以镦锻并固定在夹钳中，以在镦锻操作期间保持静止。 镦锻模具被水压地压在管端上，并且心轴被液压地定位到管端。 然后液压地施加纵向压缩力以使管端受压。 镦粗模具液压地拔出镦粗管，从而完成从单件模具中取出管而不损坏管或模具。

公开(公告)号：US4161873A

公开(公告)日：1979-07-24

申请号：US872534

申请日：1978-01-26

Applicant: Thomas L. Mabery

Inventor： Thomas L. Mabery

IPC: B21K21/06 ,  B21C37/29 ,  B21D28/28 ,  B21D39/04

CPC classification number: B21D28/28 ,  B21C37/292 ,  B21C37/298 ,  B21D39/04 ,  Y10T29/49432

Abstract: Nipples are extruded on metal parts around holes therethrough by providing an initial hole having a wide portion and a narrower portion, the wide portion having the diameter desired in the finished hole. A tapered mandrel is forced through the initial hole, extruding a nipple and resulting in a hole of the desired diameter.

Abstract translation: 通过提供具有较宽部分和较窄部分的初始孔，将乳头挤压在穿过其周围的金属部件上，该宽部分具有在成品孔中所需的直径。 锥形心轴被迫通过初始孔，挤出一个接头并产生所需直径的孔。