Double containment pipe fitting
    5.
    发明授权
    Double containment pipe fitting 失效
    双重密封管件

    公开(公告)号:US5624140A

    公开(公告)日:1997-04-29

    申请号:US152849

    申请日:1993-11-15

    IPC分类号: F16L39/00 F16L47/02

    摘要: A double containment pipe fitting and method of making same is disclosed. The fitting includes a branch double containment pipe section butt welded to a double containment pipe header, or main section to form a fitting wherein the branch section extends away from the header section. The header and branch section primary and secondary pipe portions contain distinct engagement surfaces which are joined together to form the fitting. A unique, non-planar heating element having opposed heating surfaces is brought into contact with the main and branch pipe sections to soften the plastic for welding purposes which are then joined together in a manner such that the respective centerlines of each pipe section intersect.

    摘要翻译: 公开了一种双重密封管件及其制造方法。 该配件包括对接在双重收容管集管或主体部分上的分支双重收容管部分,以形成分支部分远离集管部分延伸的配件。 头部和分支部分主管部分和第二管部分包含不同的接合表面,其接合在一起以形成配件。 具有相对的加热表面的独特的非平面加热元件与主管段和分支管段接触以软化用于焊接目的的塑料,然后将其接合在一起,使得每个管段的相应中心线相交。

    Method and device for welding profiled elements made of a plastic material, in particular PVC
    6.
    发明授权
    Method and device for welding profiled elements made of a plastic material, in particular PVC 有权
    用于焊接由塑料材料,特别是PVC制成的异形元件的方法和装置

    公开(公告)号:US09364994B2

    公开(公告)日:2016-06-14

    申请号:US14765569

    申请日:2014-02-04

    发明人: Andrea Vaccari

    摘要: The method for welding profiled elements made of a plastic material, in particular PVC, comprises the steps of: preparing two profiled elements (3) made of a plastic material, arranged with respective zones to be welded (4) facing one another; heating the zones to be welded (4); before the heating step, the step of making a groove (19) in correspondence to a peripheral edge of each of the zones to be welded (4); coupling the zones to be welded (4) to one another, by pressing the profiled elements (3) against one another to keep the zones to be welded (4) in reciprocal contact, the step of coupling the zones to be welded (4) defining a sub-step of melting the zones to be welded (4) into one another to define a welding bead and comprising the sub-steps of: arranging pressing means (27, 28) in correspondence to the grooves (19) to define, in collaboration with the grooves (19), a containing compartment (19a) of the welding bead, the pressing means (27, 28) comprising: a first work surface (62) having a protruding portion (63); and a second work surface (64) of final finishing; and displacing the pressing means (27, 28) alternately between: an idle position moved away from the profiled elements (3); a first work position wherein the first work surface (62) is abutted on the grooves (19) with the protruding portion (63) located inside the containing compartment (19a) to deviate the welding bead towards the side walls (61) of the containing compartment (19a); and a second work position wherein the second work surface (64) is abutted on the grooves (19) so as to obtain a finished welding bead.

    摘要翻译: 用于焊接由塑料材料(特别是PVC)制成的异型元件的方法包括以下步骤:制备两个由塑料材料制成的成型元件(3),所述成型元件(3)被布置成彼此相对的待焊接区域(4); 加热要焊接的区域(4); 在加热步骤之前,对应于要被焊接的每个区域(4)的周缘形成凹槽(19)的步骤; 将待焊接区域(4)彼此连接,通过将成型元件(3)彼此压靠以使得要被焊接的区域(4)保持往复接触,将要焊接的区域(4)连接的步骤 限定将要焊接的区域(4)熔化成彼此的子步骤,以限定焊接珠,并且包括以下子步骤:对应于所述凹槽(19)布置按压装置(27,28),以限定, 与凹槽(19),焊珠的容纳室(19a)协同工作,所述按压装置(27,28)包括:具有突出部分(63)的第一工作表面(62); 和最终精加工的第二工作表面(64); 并且在两个离开所述异形元件(3)之间的空闲位置之间交替地移动所述按压装置(27,28); 第一工作位置,其中所述第一工作表面(62)抵靠在所述凹槽(19)上,并且所述突出部分(63)位于所述容纳室(19a)内,以使所述焊接珠朝向所述容纳部分的侧壁(61)偏离 隔间(19a); 以及第二工作位置,其中第二工作表面(64)抵靠在凹槽(19)上,以便获得成品焊道。