专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5882439A Chromized heat-resistant alloy members and a process for the production thereof 失效
公开(公告)号：US5882439A
公开(公告)日：1999-03-16
申请号：US712180
申请日：1996-09-11
申请人： Syuhei Nakahama , Hisamichi Nagahara , Masamichi Kawasaki , Yoshio Harada
发明人： Syuhei Nakahama , Hisamichi Nagahara , Masamichi Kawasaki , Yoshio Harada
IPC分类号： C23C10/10 , C22C19/05 , C22C19/07 , C23C10/38 , C23C8/00
CPC分类号： C23C10/38 , Y10S428/941 , Y10T428/12458 , Y10T428/12854
摘要： To provide heat-resistant alloy members that maintain the resistance to corrosion at high temperature of the chromized layer formed on Ni- or Co-base heat-resistant alloys and which yet are improved in various mechanical properties. The improved Ni- or Co-base heat-resistant alloy member having a chromized layer that is characterized by having a chromium concentration of 25-80% and a thickness of 10-100 .mu.m. This member is produced by controlling both the vapor pressure of a chromium halide being used in chromization and the temperature therefor in such a way that the chromized layer being formed is adjusted to have a chromium concentration and a thickness within the ranges specified above.

2. 发明授权

US4333001A Method for welding an impeller 失效
标题翻译：焊接叶轮的方法
公开(公告)号：US4333001A
公开(公告)日：1982-06-01
申请号：US248418
申请日：1981-03-27
申请人： Syuhei Nakahama , Etsu Yamashita
发明人： Syuhei Nakahama , Etsu Yamashita
IPC分类号： F04D29/22 , B23K9/00 , B23K9/028 , B23K9/032 , B23K9/29
CPC分类号： B23K9/028 , B23K9/032 , B23K2201/001
摘要： A method and an apparatus for welding an impeller by using TIG process are provided in which one of the blades to be welded to a side plate or shroud plate is disposed so as to form a V-channel with the plate, the V-channel being oriented to face upwardly, and a torch head supported at the tip of a torch rod is placed above a weld line produced by the intersection of the blade and the plate so as to contact the inner surface of the V-channel keeping a proper distance between the tip of the tungsten electrode encased within the torch head and the weld line on which a filler wire of suitable length is disposed. The opposite end of the torch rod is mounted on a translating mechanism through a universal joint so as to move the torch head along and above the weld line and electric current is supplied between the weld line on which the filler wire is disposed and the electrode while simultaneously supplying an inert gas through the nozzle during the movement of the nozzle, the nozzle keeping in contact with the inner surface of the V-channel due to gravity.
摘要翻译：提供了一种通过使用TIG工艺来焊接叶轮的方法和装置，其中被焊接到侧板或护罩板的一个刀片设置成与板形成V形槽，V形槽是定向面向上方，并且支撑在割炬杆末端的焊炬头放置在由刀片和板的相交处产生的焊接线的上方，以便与V形槽的内表面接触，保持在V形槽之间的适当距离钨电极的尖端封装在割炬头内，焊接线上放置适当长度的填充线。焊炬杆的另一端通过万向接头安装在平移机构上，以使焊炬头沿着焊接线和上方移动，并且在设置填充焊丝的焊接线和电极之间提供电流，同时在喷嘴移动期间同时通过喷嘴供给惰性气体，喷嘴由于重力而保持与V形槽的内表面接触。

3. 发明授权

US4296308A Apparatus for welding impeller 失效
标题翻译：叶轮焊接设备
公开(公告)号：US4296308A
公开(公告)日：1981-10-20
申请号：US72843
申请日：1979-09-06
申请人： Syuhei Nakahama , Etsu Yamashita
发明人： Syuhei Nakahama , Etsu Yamashita
IPC分类号： F04D29/22 , B23K9/00 , B23K9/028 , B23K9/032 , B23K9/29 , B23K9/225
CPC分类号： B23K9/028 , B23K9/032 , B23K2201/001
摘要： A method and an apparatus for welding an impeller by using a TIG process are provided in which one of the blades to be welded to a side plate or shroud plate is disposed so as to form a V-shaped channel with the plate, the channel being oriented to face upwardly, and a torch head supported at the tip of a torch rod is placed above a weld line produced by the intersection of the blade and the plate so as to contact the inner surface of the channel keeping a proper distance between the tip of the tungsten electrode encased within the torch head and the weld line on which a filler wire of suitable length is disposed. The opposite end of the torch rod is mounted on a translating mechanism through an universal joint so the torch head moves along and above the weld line and electric current is supplied between the weld line on which the filler wire is disposed and the electrode while simultaneously supplying an inert gas through the nozzle during the movement of the nozzle, the nozzle keeping in contact with the inner surface of the channel due to gravity. The nozzle has a specific configuration so that the electrode distance is constant from the apex of the channel when the channel is curved or straight.
摘要翻译：提供了一种通过使用TIG工艺来焊接叶轮的方法和装置，其中待焊接到侧板或护罩板的一个刀片被设置成与板形成V形通道，通道为面向上的方向，并且将支撑在割炬杆的尖端处的炬头放置在由刀片和板的相交处产生的焊接线的上方，以便与通道的内表面接触，保持在尖端之间的适当距离的钨电极被包裹在炬头内部和焊接线上，在其上设置了适当长度的填充线。焊炬杆的另一端通过万向接头安装在平移机构上，使焊炬头沿着焊接线并沿上方移动，并且在设置填充焊丝的焊接线和电极之间提供电流，同时供电在喷嘴移动期间通过喷嘴的惰性气体，喷嘴由于重力而与通道的内表面保持接触。喷嘴具有特定的构造，使得当通道弯曲或直线时，电极距离从通道的顶点恒定。

4. 发明授权

US5789077A Method of forming carbide-base composite coatings, the composite coatings formed by that method, and members having thermally sprayed chromium carbide coatings 失效
标题翻译：形成碳化物基复合涂层的方法，由该方法形成的复合涂层以及具有热喷涂碳化铬涂层的部件
公开(公告)号：US5789077A
公开(公告)日：1998-08-04
申请号：US494695
申请日：1995-06-26
申请人： Syuhei Nakahama , Hisamichi Nagahara , Masamichi Kawasaki , Yoshio Harada , Junichi Takeuchi
发明人： Syuhei Nakahama , Hisamichi Nagahara , Masamichi Kawasaki , Yoshio Harada , Junichi Takeuchi
IPC分类号： C23C4/18 , C23C10/02 , C23C4/10
CPC分类号： C23C4/18 , C23C10/02 , Y10T428/265 , Y10T428/31678
摘要： Thermally sprayed coatings made from carbides of metals having greater carbon affinity than Cr in the presence of free carbon, or thermally sprayed coatings made from carbides of metals having smaller carbon affinity than Cr are heat treated in a chromium halide containing atmosphere which also contains hydrogen gas, whereby activated metallic Cr is precipitated in a fine particulate form, which is allowed to act on the thermally sprayed coatings, whereupon a Cr.sub.23 C.sub.6 -form carbide is created not only on the coating surface but also in its interior, particularly within pores, to form a modified layer, thereby compositing the thermally sprayed coatings.
摘要翻译：在游离碳存在下，比碳含量更高的金属碳化物制成的热喷涂层，或者碳化碳比碳化合物碳化物碳化物热喷涂的涂层在含有氢氧化铬的气氛中进行热处理，由此活化的金属Cr以细颗粒形式沉淀，其被允许作用在热喷涂的涂层上，于是Cr23C6型碳化物不仅在涂层表面上而且在其内部，特别是在孔内形成，形成改性层，从而合成热喷涂层。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式