公开(公告)号：WO2023025979A1

公开(公告)日：2023-03-02

申请号：PCT/FI2022/050430

申请日：2022-06-17

Applicant: LARIKKA, Leo

Inventor： LARIKKA, Leo

IPC: B21D28/28 ,  B26F1/00 ,  F16L41/02

Abstract: The object of the invention is a method and a device for making a pipe T-branch by connecting the shaped end of a branch pipe with internal welding to the edges of a hole in a main pipe. The hole in the main pipe (T) and the arcs corresponding to the main pipe at the end of the branch pipe (P) are cut mechanically by removing one solid part from the hole and two (22) solid parts from the end of the branch pipe in a dry mechanical process, wherein the cleanliness of the joint areas remains suitable for welding. The shaped end of the branch pipe (P) is placed around the hole in the main pipe and the joint seam (21) between the pipes is welded by internal welding without the use of a welding filler. A suitable branching hole is made by punching tangentially from the side of the main pipe such that the tangent of the pipe, which is parallel to the direction of movement of the punch tool, is located inside the punch tool (1).

公开(公告)号：WO2012168542A1

公开(公告)日：2012-12-13

申请号：PCT/FI2012/050496

申请日：2012-05-24

Applicant: EFES TEX AG ,  LARIKKA, Leo

Inventor： LARIKKA, Leo

IPC: F16L41/08 ,  F16L41/02 ,  B23K33/00 ,  B23K31/02

CPC classification number: B23K31/02 ,  B23K31/027 ,  B23K33/006 ,  F16L41/084

Abstract: The invention relates to a method for making T-branch joints for pipes. The method comprises making a hole (3) in a pipe (1) to be branched and attaching a branch pipe (2) by welding to the edges of the hole. Welding is conducted from inside the pipes. The hole (3) is made smaller than the internal diameter of the branch pipe (2) with edges (4) of the hole (3) providing a step which extends inside the internal diameter of the branch pipe. The material of the step (4) is melted by internal welding to form part of a weld joint (5).

Abstract translation: 本发明涉及一种用于制造管道的T型分支接头的方法。 该方法包括在管（1）中形成一个分支孔（3），并通过焊接将分支管（2）连接到孔的边缘。 从管道内部进行焊接。 孔（3）制成小于分支管（2）的内径，孔（3）的边缘（4）提供在分支管的内径内延伸的台阶。 步骤（4）的材料通过内部焊接熔化，形成焊接接头（5）的一部分。

公开(公告)号：WO2022152965A1

公开(公告)日：2022-07-21

申请号：PCT/FI2021/050899

申请日：2021-12-20

Applicant: LARIKKA, Leo

Inventor： LARIKKA, Leo

IPC: B21D28/28 ,  B21D28/34 ,  B21C37/29 ,  B21D19/08 ,  B21D37/02 ,  F16L41/00

Abstract: A method and device for perforating a pipe wall. In the method, the pipe is moved in its longitudinal direction to a punching position comprising a cutting punch (2) and a three- part die (3, 5, 8) inside the pipe. The die (3, 5, 8) is expanded in the direction of movement of the cutting punch by means of the wedge surfaces (8a,8b) of a wedge (8) between the die parts (3, 5) by moving the wedge (8) in a first direction of transfer towards the free end of the die. The cutting punch (2) is used to punch a hole in the pipe wall, which is supported by an expanded die (3, 5, 8) during punching, whereupon the piece punched off from the pipe falls into the hole (16) of the upper die part (3). The die is contracted by moving the wedge (8) in a second direction of transfer by a first transfer distance. The die parts (3, 5) then turn in an articulated manner towards each other and out of contact with the inner surface of the pipe. The perforated pipe is moved away from the punching position in its longitudinal direction and the pipe is moved to a position for finishing the rims of the hole. The lower die part (5) and the wedge (8) are further moved together in a second direction of transfer by a second transfer distance, whereupon the base of the hole (16) opens and the piece punched off from the pipe falls through the hole (16).

公开(公告)号：WO2022152964A1

公开(公告)日：2022-07-21

申请号：PCT/FI2021/050898

申请日：2021-12-20

Applicant: LARIKKA, Leo

Inventor： LARIKKA, Leo

IPC: B21D19/08 ,  B21C37/29

Abstract: The invention relates to a method and apparatus for making a T-branch collar in a pipe by bending the rims of the pipe (17) hole into a hole-surrounding collar (16). The forming die (3) of a collaring device is moved radially with respect to the pipe, outwards from inside the pipe to shape the collar. On both sides of the collar (16) to be formed, the pipe (17) is pressed between the inner support means (6) and the outer die (10) by pushing the support means (6) towards the outer die (10).

公开(公告)号：WO2022152963A1

公开(公告)日：2022-07-21

申请号：PCT/FI2021/050895

申请日：2021-12-20

Applicant: LARIKKA, Leo

Inventor： LARIKKA, Leo

IPC: B21C37/29 ,  B21D31/00 ,  B21D37/06 ,  F16L41/04

Abstract: The invention relates to a method and device for calibrating the dimensions of a T-branch pipe (1). The T- branch pipe comprises a standard pipe (2) and a collar (3) forming a branch opening, the collar diameter of which is made larger than the desired final size in the longitudinal direction (x) of the standard pipe (2) and smaller than the desired final size in the transverse direction. The collar (3) is flared out by means of a first calibration force (FI) in one direction which is transverse to the longitudinal direction (x) of the standard pipe (2). The standard pipe (2) is flared out locally by means of a second calibration force (F2) and a third calibration force (F3) in two directions. The said flaring out is carried out in stages in such a way that all three calibration forces (FI, F2 ja F3) eventually act simultaneously. When the calibration forces (FI, F2 and F3) act, the standard pipe (2) is reduced in the vicinity of its ends by means of a fourth force (F4) which acts in parallel with the axial direction (y) of the collar (3).

公开(公告)号：WO2010089449A1

公开(公告)日：2010-08-12

申请号：PCT/FI2010/050047

申请日：2010-01-28

Applicant: LACOL OY ,  LARIKKA, Leo

Inventor： LARIKKA, Leo

IPC: B21D28/36 ,  B23D21/04 ,  B23D21/10

CPC classification number: B23D21/04 ,  B23B5/167 ,  B23D21/006 ,  B26D3/02 ,  B26D3/16 ,  B26D3/166 ,  B26D5/08 ,  B26D2001/006 ,  Y10T82/16442 ,  Y10T82/22

Abstract: The invention relates to a pipe cutting apparatus, comprising a tubular or box-like frame (1), a pipe clamp (9) inside the frame for immobilizing a pipe (P) to be cut, an annular blade carrier (3) rotatably bearing-mounted on the frame and provided with a central opening for the pipe to pass through, one or more blade arms (4) in attachment with the annular blade carrier (3) for movement mainly in a radial direction or in a slightly off-radial direction, a cutting blade (5) mounted on the blade arm (4), and means for actuating the blade arm (4) to enable feeding the cutting blade (4), rotating outside the pipe, towards the pipe for cutting the same by shearing. The means for actuating the blade arm (4) include a spiral groove disc (6) rotatably bearing- mounted alongside the annular blade carrier (3), featuring a spiral groove (7) and a transition fin (8) extending from the blade arm (4) to the spiral groove (7), as well as elements (11, 12) for rotating the annular blade carrier (3) and the spiral groove disc (6) at a desired rotation speed ratio relative to each other.

Abstract translation: 本发明涉及一种管道切割设备，包括管状或箱形框架（1），框架内部的管夹（9），用于固定待切割的管道（P），环形叶片托架（3），可旋转的轴承 安装在框架上并设置有用于管道通过的中心开口，与环形叶片载体（3）相连接的一个或多个叶片臂（4），主要在径向方向或稍微偏离径向 方向，安装在所述刀臂（4）上的切割刀片（5）以及用于致动所述刀臂（4）以使得能够将所述切割刀片（4）馈送到所述管道外部的装置朝向所述管道切割所述切割刀片 剪切。 用于致动叶片臂（4）的装置包括可旋转地轴承安装在环形叶片托架（3）旁边的螺旋槽盘（6），其特征在于螺旋槽（7）和从叶片臂 （4）连接到螺旋槽（7），以及用于相对于彼此以期望的转速比旋转环形叶片托架（3）和螺旋槽盘（6）的元件（11,12）。

公开(公告)号：WO2004101207A1

公开(公告)日：2004-11-25

申请号：PCT/FI2004/050063

申请日：2004-05-13

Applicant: EFES TEX AG ,  LARIKKA, Leo

Inventor： LARIKKA, Leo

IPC: B23K9/16

CPC classification number: B23K9/162 ,  B23K2201/06

Abstract: The invention relates to an apparatus for welding cylindrical elements and toroidal bodies, said apparatus comprising a base (13), an electrode adaptor (14), having a welding electrode (15) attached thereto, a fitting member (1) which is mounted on the base (13) and has the rotatably bearing-mounted electrode adaptor (14) extended therethrough, and a shielding gas chamber (3), which is dismountably mountable on the fitting member (1), around the electrode (15). The shielding gas chamber’s (3) accommodation space for elements or bodies (A, B) to be welded is designed in such a way that the elements or bodies (A, B) to be welded constitute a section of the walls defining the shielding gas chamber’s (3) gas space and further constitute a partition for dividing the shielding gas chamber for two chamber compartments, one of which, an inner chamber, directs the shielding gas to the interior of the elements or bodies to be welded and the other, an outer chamber (5, 5.1, 5.2), surrounds the eventual weld.

Abstract translation: 本发明涉及一种用于焊接圆柱形元件和环形体的装置，所述装置包括一个底座（13），一个具有焊接电极（15）的电极适配器（14），安装在其上的安装件（1） 所述基座（13）并且具有延伸穿过其的可旋转轴承安装的电极适配器（14），以及可拆卸地安装在所述配件构件（1）上的保护气室（3）围绕所述电极（15）。 要被焊接的元件或主体（A，B）的保护气室（3）的容纳空间被设计成使待焊接的元件或主体（A，B）构成限定保护气体的壁的一部分 （3）气体空间，并且还构成用于分隔用于两个室隔室的保护气室的隔板，其中一个内室将保护气体引导到要焊接的元件或物体的内部，另一个 外室（5,5.1,5.2）围绕最终焊接。

公开(公告)号：WO2003022502A1

公开(公告)日：2003-03-20

申请号：PCT/FI2002/000721

申请日：2002-09-06

Applicant: EFES TEX AG ,  LARIKKA, Leo

Inventor： LARIKKA, Leo

IPC: B23K9/028

CPC classification number: B23K9/0284 ,  B23K37/0443 ,  B23K37/053 ,  B23K37/0536

Abstract: The invention relates to an apparatus for welding cylindrical pieces or axially symmetrical parts. The apparatus comprises an electrode adaptor (1) in the form of a shaft supplying welding current to a welding electrode (2). The electrode adaptor (1) is insertable into a shielding gas chamber (3), which houses positioning and fastening elements (4, 14-18) for pieces (A-D) to be welded. The positioning and fastening elements are mounted on a disc-shaped cartridge (4), which can constitute a portion of the positioning and fastening elements. The cartridge (4) is attached releasably to a cartridge base (5), which is bearing-mounted (6) rotatably relative to the shielding gas chamber (3), the cartridge base (5), and the cartridge (4) attached thereto, having an axis of rotation (R) which is perpendicular to the plane of axes (A1, B1) of the pieces to be welded, whereby said axes (A1, B1), lying at an angle relative to each other, are brought alternately onto a common axis which coincides with the axis of the electrode adaptor (1).

Abstract translation: 本发明涉及一种用于焊接圆柱形件或轴对称部件的装置。 该装置包括以向焊接电极（2）提供焊接电流的轴形式的电极适配器（1）。 电极适配器（1）可插入到保护气室（3）中，该保护气室容纳待焊接件（A-D）的定位和紧固元件（4,14-18）。 定位和紧固元件安装在可以构成定位和紧固元件的一部分的盘形盒（4）上。 盒（4）可释放地附接到盒基座（5），该盒基座（5）相对于保护气室（3），盒基座（5）和与其连接的盒（4）可旋转地轴承安装（6） 具有垂直于待焊接件的轴线（A1，B1）的平面的旋转轴线（R），由此相对于彼此成一定角度的所述轴线（A1，B1）交替地交替 到与电极适配器（1）的轴线重合的公共轴线上。