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1. 发明授权

US4223197A Method of cooling weld in steel piping and apparatus therefor 失效
标题翻译：钢管道焊接冷却方法及其设备
公开(公告)号：US4223197A
公开(公告)日：1980-09-16
申请号：US897403
申请日：1978-04-18
申请人： Katsuyuki Imai , Isao Masaoka , Yositeru Chiba , Jiro Kuniya
发明人： Katsuyuki Imai , Isao Masaoka , Yositeru Chiba , Jiro Kuniya
IPC分类号： B23K9/028 , B23K37/00 , B23K31/06
CPC分类号： B23K9/0282 , B23K37/003
摘要： A method for cooling a weld in steel piping during butt welding with cooling of the inside comprises, after joining of pipe ends by a root pass on the inside, cooling the junction being welded by subsequent passes with injection of a liquid medium at room temperature from the center of the pipe against the surrounding wall, in a direction between radial and tangential directions relative to the inner pipe surface. An apparatus for practicing the cooling method comprises a rotatable multi-nozzle assembly having a radius of rotation corresponding to the inside diameter of the pipe and is capable of injecting the cooling medium against the inner surface of the pipe, a duct for conducting the cooling medium to the nozzles, and a pumping device for forcing the cooling medium under pressure into the nozzles.
摘要翻译：在内部冷却的对接焊接期间冷却钢管道中的焊接的方法包括：在管端部通过内侧的根部接合之后，通过随后的通过在室温下注入液体介质来冷却被焊接的接合部管道的中心相对于内管表面在径向和切向之间的方向上相对于周围壁。用于实施冷却方法的装置包括具有与管的内径相对应的旋转半径的可旋转多喷嘴组件，并且能够将冷却介质喷射到管的内表面上，用于传导冷却介质以及用于迫使冷却介质在压力下进入喷嘴的泵送装置。

2. 发明授权

US5633094A Valve having facing layers of co-free Ni-base Alloy 失效
标题翻译：具有面向无层Ni基合金层的阀
公开(公告)号：US5633094A
公开(公告)日：1997-05-27
申请号：US548758
申请日：1995-10-26
申请人： Kikuo Takeshima , Shin Kumagai , Masato Koshiishi , Yositeru Chiba
发明人： Kikuo Takeshima , Shin Kumagai , Masato Koshiishi , Yositeru Chiba
IPC分类号： B23K9/04 , B23K35/30 , C22C19/05 , F16K25/00 , B32B15/04 , F16K25/04
CPC分类号： C22C19/057 , B23K35/304 , C22C19/056 , F16K25/005 , B23K9/04 , Y10T428/12937 , Y10T428/12944
摘要： Hard facing layers provided on engagement portions of a valve body and engagement portions of a valve box of a valve apparatus, consisting of cobalt-free Ni-base alloys. One of the Ni-base alloys for the hard facing layers comprises not more than 15% Fe and less than 2% W (tungsten), and the other comprises more than 15% Fe. More specifically, one of the cobalt-free Ni-base alloys essentially consists of, by weight, 15 to 20% Cr, 5 to 10% Si, 10 to 15% Fe, less than 2% W, and the balance of Ni and unavoidable impurities, and has a Vickers hardness (Hv) 510 to 630, and the other essentially consists of, by weight, 5 to 15% Cr, 5 to 10% Si, more than 15% and not more than 30% Fe, 1 to 4% W, and the balance of Ni and unavoidable impurities, and has a Vickers hardness (Hv) 400 to 470. The valve apparatus of the invention is suitably installed in a water pipe line which communicates with a nuclear reactor.
摘要翻译：设置在阀体的接合部分和由不含钴的Ni基合金构成的阀装置的阀盒的接合部分的硬质面层。用于硬面层的Ni基合金之一包括不超过15％的Fe和小于2％的W（钨），另一种包括大于15％的Fe。更具体地说，无钴Ni基合金中的一种基本上由以重量计15％至20％的Cr，5至10％的Si，10至15％的Fe，小于2％的W，余量为Ni和不可避免的杂质，维氏硬度（Hv）为510〜630，另外基本上由重量比5〜15％的Cr，5〜10％的Si，15％以上30％以下的Fe，1 至4％W，余量为Ni和不可避免的杂质，维氏硬度（Hv）为400〜470。本发明的阀装置适用于与核反应堆连通的水管线。

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