METHOD FOR MANUFACTURING A DOOR FRAME, WELDING ARRANGEMENT AND STRUCTURE OF A DOOR FRAME

    公开(公告)号:EP2427299B1

    公开(公告)日:2020-02-12

    申请号:EP10772060.9

    申请日:2010-05-04

    申请人: Pemamek OY

    IPC分类号: B23K28/02 E04H12/00 B23K37/02

    摘要: Manufacturing method, welding arrangement and door frame structure for a door frame (21) of a windmill tower (10), wherein a hole (15) is made in the tower shell (10) for the door and a door frame is placed in the hole and welded on the shell. In the method, the shape of the door frame for the shell and the shape of the surface of the shell at the opening (15) to be made are measured with a measuring sensor (40). Based on the measurements, a cutting torch (41) is controlled so that an opening corresponding to the shape of the door frame is cut in the shell and bevels (16, 17) are cut in the edge of the opening on both sides. The door frame is welded on the shell with a weld (24), such as a double bevel, double J or square butt weld, from the inside and the outside of the shell.

    SPOT WELDING DEVICE, SPOT WELDING METHOD, AND JOINT STRUCTURE

    公开(公告)号:EP3450080A1

    公开(公告)日:2019-03-06

    申请号:EP17789680.0

    申请日:2017-04-27

    IPC分类号: B23K20/12 B23K11/11 B23K28/02

    摘要: A spot welding apparatus which performs spot welding of a plurality of plate materials which are lapped to each other, comprises a displacement driving unit which displaces lapped portions of the plurality of plate materials and a tool relatively to each other; a rotation driving unit which rotates the tool; and a controller which controls the displacement driving unit and the rotation driving unit so that the tool is plunged into the lapped portions in a state in which the tool is rotated to perform friction stir spot welding. The controller controls the displacement driving unit so that at least one friction stir spot weld is formed in a region of the lapped portions which is between a plurality of resistance spot welds formed by resistance spot welding.

    ELECTRIC MELTING METHOD FOR FORMING METAL STRUCTURE

    公开(公告)号:EP3213863A4

    公开(公告)日:2017-12-13

    申请号:EP15856920

    申请日:2015-11-03

    发明人: WANG HUAMING

    摘要: An electric melting method for forming metal components. The method provides an electric melting head (6) and a base material (2) being connected to the anode and the cathode of a power supply (12). During the forming of the component, the raw metal wire (1) is sent to the base material (2) via the feeder (5) and the electric melting head (6) to generate electric arc (9) between the raw wire (1) and the base material (2) under the protection of the deposition of granular auxiliary material (3). The electric arc melts a part of the deposited auxiliary material (3) and creates a molten slag pool (8). Electric current flows through the raw wire (1) and the molten slag pool (8), and generates the resistance heat and the electroslag heat. The raw wire (1) is molten under the high-energy heat resource composed of the electric arc heat, the resistance heat and the electroslag heat, and thereby creating a molten pool (11) on partial surface of the base material (2). The raw wire (1) and the auxiliary material (3) are fed continuously and a computer is employed to control the relative movement of the electric melting head (6) and the base material (2) based on laminated slicing data, such that the molten pool (11) is rapidly cooled, solidified and deposited on the base material (2), and thus the metal component with desired shape and size are formed after the layer-to-layer deposition.

    ELECTRIC MELTING METHOD FOR FORMING NUCLEAR POWER PLANT PRESSURE VESSEL CYLINDER

    公开(公告)号:EP3216549A4

    公开(公告)日:2017-12-06

    申请号:EP15857870

    申请日:2015-11-03

    发明人: WANG HUAMING

    摘要: An electric melting method for forming a cylinder of a pressure vessel of nuclear power station, in which an electric melting head and a base material are connected to the anode and cathode of a power supply respectively. During the forming of a metal component, the raw metal wire is sent to a surface of the base material by a feeder and the electric melting head to create the electric arc between the raw wire and the base material under the protection of the deposit of granular auxiliary material, wherein the electric arc melts certain of deposited auxiliary material and crates a molten slag pool; a current flows through the raw wire and the molten slag pool to create the resistance heat and the electroslag heat; the raw wire is molten under the high-energy heat resource composed of the electric arc heat, the resistance heat and the electroslag heat, and creates a molten pool on partial surface of the base material; the raw wire and the auxiliary material are continuously fed and a computer is used to control the relative movement between the electric melting head and the base material based on laminated slice data of the formed components, such that the molten pool is rapidly cooled, solidified and deposited on the base material and thus forms the cylinder of the pressure vessel of the nuclear power station. Such method is high efficiency and low cost, as well as excellent mechanical performance.

    ELECTRIC MELTING METHOD FOR FORMING NUCLEAR POWER PLANT PRESSURE VESSEL CYLINDER
    50.
    发明公开
    ELECTRIC MELTING METHOD FOR FORMING NUCLEAR POWER PLANT PRESSURE VESSEL CYLINDER 审中-公开
    核电厂压力容器油缸的电熔法

    公开(公告)号:EP3216549A1

    公开(公告)日:2017-09-13

    申请号:EP15857870.8

    申请日:2015-11-03

    发明人: WANG, Huaming

    IPC分类号: B23K9/04 B23K28/02

    摘要: An electric melting method for forming a cylinder of a pressure vessel of nuclear power station, in which an electric melting head and a base material are connected to the anode and cathode of a power supply respectively. During the forming of a metal component, the raw metal wire is sent to a surface of the base material by a feeder and the electric melting head to create the electric arc between the raw wire and the base material under the protection of the deposit of granular auxiliary material, wherein the electric arc melts certain of deposited auxiliary material and crates a molten slag pool; a current flows through the raw wire and the molten slag pool to create the resistance heat and the electroslag heat; the raw wire is molten under the high-energy heat resource composed of the electric arc heat, the resistance heat and the electroslag heat, and creates a molten pool on partial surface of the base material; the raw wire and the auxiliary material are continuously fed and a computer is used to control the relative movement between the electric melting head and the base material based on laminated slice data of the formed components, such that the molten pool is rapidly cooled, solidified and deposited on the base material and thus forms the cylinder of the pressure vessel of the nuclear power station. Such method is high efficiency and low cost, as well as excellent mechanical performance.

    摘要翻译: 一种用于形成核电站压力容器的圆筒的电熔法,其中电熔头和基材分别连接到电源的阳极和阴极。 在形成金属部件的过程中,通过给料器和电熔头将原始金属丝送到基材的表面,以在颗粒沉积的保护下在原丝和基材之间产生电弧 辅助材料,其中电弧熔化某些沉积的辅助材料并装入熔渣池; 电流流过原丝和熔渣池以产生电阻热和电渣热; 原丝在由电弧热,电阻热和电渣热组成的高能热源下熔化,在基材部分表面形成熔池; 连续供给原丝和辅助材料,并且使用计算机根据所形成的部件的层压片数据控制电熔头与基材之间的相对运动,使得熔池迅速冷却,固化并且 沉积在基础材料上并因此形成核电站的压力容器的圆柱体。 这种方法效率高,成本低,机械性能优良。