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1. 发明授权

US4326580A Method of fabricating a structural member by electro slag forming 失效
标题翻译：通过电渣成型制造结构件的方法
公开(公告)号：US4326580A
公开(公告)日：1982-04-27
申请号：US85301
申请日：1979-10-16
申请人： Takeshi Wada , Tetsuo Okuni
发明人： Takeshi Wada , Tetsuo Okuni
IPC分类号： B23K25/00 , B22D27/02
CPC分类号： B23K25/00
摘要： A method of fabricating a structural member such as a wicket gate for water turbines by electro slag forming comprises the steps of mounting a water-cooled metal mold on a part of a previously formed structural member, such as a stem; melting electrodes inserted in the water-cooled metal mold to form the other part of the structural member such as a vane portion of the wicket gate on the previously formed structural member. The previously formed structural member has a concave portion which is exposed in the water-cooled metal mold and the water-cooled metal mold is mounted so as to contact with the previously formed structural member at the lower portion than the top of the concave portion. The previously formed structural member is melted gradually from the central portion of the concave to the outer periphery and then such a portion as the vane portion is formed by molten metal of the electrode.
摘要翻译：通过电渣形成用于水轮机的小门的结构构件的方法包括以下步骤：将水冷金属模安装在预先形成的结构构件（例如杆）的一部分上; 将熔融电极插入水冷金属模具中以形成结构构件的另一部分，例如预先形成的结构构件上的小门的叶片部分。先前形成的结构构件具有暴露在水冷金属模具中的凹部，并且水冷金属模具安装成在比凹部的顶部更低的部分处与先前形成的结构构件接触。先前形成的结构构件从凹部的中心部分逐渐熔化到外周，然后由电极的熔融金属形成叶片部分。

2. 发明授权

US4228336A Method of manufacturing stay ring for water turbine and pump turbine 失效
标题翻译：制造水轮机和水轮机的止动环的方法
公开(公告)号：US4228336A
公开(公告)日：1980-10-14
申请号：US911081
申请日：1978-05-31
申请人： Tetsuo Okuni , Masao Ishihara , Takeshi Wada
发明人： Tetsuo Okuni , Masao Ishihara , Takeshi Wada
IPC分类号： B23K25/00 , F03B3/16
CPC分类号： F03B3/16 , B23K25/00 , Y02E10/223 , Y02P70/525
摘要： A method of manufacturing a stay ring for a water turbine or pump turbine having an upper annular disc, a lower annular disc and a plurality of circumferentially equal-distantly spaced stay vanes extending between the upper and lower annular discs. The method includes forming openings in the upper and lower annular discs at locations where the stay vanes are to be positioned, locating the upper and the lower annular discs such that the openings in the upper and lower annular discs are put in vertical alignment, placing a plurality of molds each having therein a space of a shape conforming to that of the stay vane, such that the spaces in the molds are brought into communication with respective pairs of openings of the upper and the lower discs, and effecting an electroslag welding in the space in each mold through respective openings of the upper annular disc to fill the space with the welding metal, thereby to form the stay vanes and, at the same time, to connect the upper and lower annular discs through thus formed stay vanes.
摘要翻译：一种用于制造水轮机或泵式涡轮机的止动环的方法，其具有在上环形盘和下环形盘之间延伸的上环形盘，下环形盘和多个周向相等间隔的延伸叶片。该方法包括在上下环形盘的位置上形成开口，该位置处定位上述下环形盘和上下环形盘，以使上下环形盘中的开口垂直排列，多个模具各自具有与延伸叶片的形状相一致的形状的空间，使得模具中的空间与上部和下部盘的相应的开口对连通，并且进行电渣焊接每个模具中的空间通过上部环形盘的相应开口，以与焊接金属填充空间，从而形成支撑叶片，并且同时通过如此形成的撑杆连接上部和下部环形盘。

3. 发明授权

US4208564A Nozzle structure of electroslag welding machines 失效
标题翻译：电渣焊机的喷嘴结构
公开(公告)号：US4208564A
公开(公告)日：1980-06-17
申请号：US904988
申请日：1978-05-11
申请人： Takeshi Wada , Hisanao Kita , Tetsuo Okuni , Yoshio Namatame, deceased
发明人： Takeshi Wada , Hisanao Kita , Tetsuo Okuni , Yoshio Namatame, deceased
IPC分类号： B23K25/00
CPC分类号： B23K25/00
摘要： A nozzle structure of electroslag welding machines for use in welding planks having heavier thicknesses compared to previously electroslag welded planks, and having as much as 800 mm thicknesses, in which the nozzle structure is formed of a plurality of bent pipes rigidly connected with each other to form a fan-shaped nozzle structure. A plurality of wires are continuously fed through each of the bent pipes into a weld gap formed by faces of planks to be welded.
摘要翻译：一种用于焊接板的电渣焊机的喷嘴结构，其与以前的电渣焊接板相比具有更厚的厚度，并且具有多达800mm的厚度，其中喷嘴结构由多个彼此刚性连接的弯管形成，形成扇形喷嘴结构。多根电线被连续地通过每个弯曲的管道供给到由待焊接的板条的面形成的焊接间隙中。

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