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    Pipe inside cleaning device
    3.
    发明授权
    Pipe inside cleaning device 失效
    管内清洁装置

    公开(公告)号：US3914815A

    公开(公告)日：1975-10-28

    申请号：US50776474

    申请日：1974-09-20

    Applicant: FUJI SEIKI MACHINE WORKS

    Inventor： KOBAYASHI SHIGEHARU

    IPC: B24C3/32

    CPC classification number: B24C3/327

    Abstract: Apparatus for cleaning the inside surface of a tubular workpiece such as a pipe by blasting the workpiece surface with an abrasive slurry. The slurry is impelled by a gas supplied by a mechanism designed to impart a pulsating pressure to the blasting nozzle. One disclosed embodiment of the invention utilizes a mechanical rotary valve combined with an accumulator and another embodiment utilizes a reciprocating piston for imposing a relative high pressure onto a quantity of impelling gas and then suddenly releasing it to the blasting nozzle.

    Abstract translation: 用于通过用研磨浆料喷射工件表面来清洁管状工件如管道的内表面的装置。 浆料被由设计成向喷砂喷嘴施加脉动压力的机构供应的气体推动。 本发明的一个公开的实施例利用与蓄能器结合的机械旋转阀，并且另一实施例利用往复式活塞将相对高的压力施加到一定数量的推进气体上，然后将其突然释放到喷射喷嘴。

    Descaling device
    5.
    发明授权
    Descaling device 失效
    除垢装置

    公开(公告)号：US3906672A

    公开(公告)日：1975-09-23

    申请号：US51567174

    申请日：1974-10-17

    Applicant: FUJI SEIKI MACHINE WORKS

    Inventor： KOBAYASHI SHIGEHARU

    IPC: B21C43/00 ,  B24C3/12

    CPC classification number: B24C1/086 ,  B21C43/00 ,  B24C3/12 ,  Y10S451/909

    Abstract: Apparatus for descaling wire. There is provided wet abrasive grit blasting means particularly adapted for descaling an elongated workpiece of generally rounded cross section, such as rod or wire. Said means contemplate placing at the discharge end of a generally conventional venturi tube into which a blasting slurry is introduced and through which the workpiece is coaxially led, one or more process means comprising serially connected chambers of repetitively varying cross section. In the illustrated embodiment each of said chambers includes a first portion of relatively large diameter, a second portion of converging diameter and a third portion of relatively small diameter. Same causes repeated slowing and acceleration of abrasive fluid flow together with repetitive expansion and contraction of the carrying gas, all of which generates a high degree of random turbulence and uniform action thereof onto the workpiece.

    Abstract translation: 除锈丝的设备 提供湿式磨料喷砂装置，特别适用于对通常为圆形横截面的细长工件（例如杆或线）进行除垢。 所述装置考虑放置在大体上常规的文丘里管的排放端处，其中引入喷砂浆料并且工件同轴地引导到喷射浆料中，一个或多个处理装置包括具有重复变化的横截面的串联连接的室。 在所示实施例中，每个所述腔室包括相对较大直径的第一部分，会聚直径的第二部分和相对较小直径的第三部分。 相同的原因是磨料流体的重复减速和加速以及携带气体的重复膨胀和收缩，所有这些都产生高度的随机紊流和对工件的均匀作用。

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