公开(公告)号：WO2012029967A1

公开(公告)日：2012-03-08

申请号：PCT/JP2011/070089

申请日：2011-08-29

Applicant: SUMITOMO METAL INDUSTRIES, LTD. ,  VALLOUREC MANNESMANN OIL & GAS FRANCE ,  SASAKI, Masayoshi ,  SUMITANI, Katsutoshi ,  NAKAMURA, Takumi ,  MASUBUCHI, Jun

Inventor： SASAKI, Masayoshi ,  SUMITANI, Katsutoshi ,  NAKAMURA, Takumi ,  MASUBUCHI, Jun

IPC: B05B13/02 ,  B05B12/12 ,  B05B13/06 ,  B05C9/12 ,  F16L15/04

CPC classification number: B05B15/00 ,  B05B13/0436 ,  B05B13/0442 ,  B05B13/0627 ,  B05C5/02 ,  B05C5/0295 ,  B05D1/005 ,  B05D1/02 ,  B05D3/067 ,  B05D7/146 ,  B05D7/222 ,  B05D2202/10 ,  B05D2254/06 ,  F16L58/182

Abstract: A coating apparatus for forming a thin UV curable resin coating on the outer and/or inner surface(11A,11B) of a threaded end portion of a steel pipe(11) constituting a pin or box of a threaded joint for steel pipes comprises a steel pipe(11) support means(14) which supports the steel pipe(11) while rotating it about its longitudinal axis, a first spraying unit(1) having at least two nozzles(1a,1b) adapted to spray a UV curable resin coating composition by pneumatic atomization toward the outer or inner surface(11A,11B) of the threaded end portion of a steel pipe(11), a UV curable resin supply system for supplying the UV curable resin coating composition from a storage tank(21) to each nozzle(1a,1b) of the first spraying unit(1), and a first nozzle support means(3,5,7,9,15) which supports each nozzle(1a,1b) of the first spraying unit(1) so as to be movable in the axial direction of the steel pipe(11) and in the vertical direction. The two nozzles (1a,1b) are disposed at different positions at least in the axial direction of the steel pipe(11) at angles which are sloped such that the sprayed streams from the nozzles(1a,1b) approach each other. By using this coating apparatus, it is possible to form a UV cured resin coating on the outer or inner surface of a threaded end portion of a steel pipe with a uniform thickness.

Abstract translation: 在构成钢管螺纹接头的销或盒的钢管（11）的螺纹端部的外表面和/或内表面（11A，11B）上形成薄UV固化树脂涂层的涂布装置包括： 钢管（11）支撑装置（14），其在围绕其纵向轴线旋转的同时支撑钢管（11）;第一喷射单元（1），其具有至少两个适于喷射UV固化树脂的喷嘴（1a，1b） 通过气动雾化向钢管（11）的螺纹端部的外表面或内表面（11A，11B）涂覆组合物，用于从储罐（21）供应UV可固化树脂涂料组合物的UV固化树脂供给系统， 到第一喷射单元（1）的每个喷嘴（1a，1b）和支撑第一喷射单元（1）的每个喷嘴（1a，1b）的第一喷嘴支撑装置（3,5,7,9,15） ），以能够在钢管（11）的轴向上并且在垂直方向上移动。 两个喷嘴（1a，1b）至少沿着钢管（11）的轴向以不同的位置倾斜地设置，使得来自喷嘴（1a，1b）的喷射流相互接近。 通过使用这种涂布装置，可以在厚度均匀的钢管的螺纹端部的外表面或内表面上形成UV固化树脂涂层。