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1. (US4469269) Method of manufacturing the peripheral wall of a tank for an oil-immersed electric apparatus

专利局 : 美国
申请号: 06437008 申请日: 27.10.1982
公布号: 4469269 公布日: 04.09.1984
授权号: 4469269 授权日: 04.09.1984
公布类型: A
国际专利分类:
B23P 15/26
H01F 27/02
H01F 27/10
H01F 27/12
H01F 41/00
B 作业;运输
23
机床;其他类目中不包括的金属加工
P
金属的其他加工;组合加工;万能机床
15
制造特定金属物品,采用不包含在另一个单独的小类中或该小类的一个组中的加工
26
热交换器
H 电学
01
基本电气元件
F
磁体;电感;变压器;磁性材料的选择
27
变压器或电感器的一般零部件
02
外壳
H 电学
01
基本电气元件
F
磁体;电感;变压器;磁性材料的选择
27
变压器或电感器的一般零部件
08
冷却;通风
10
液体冷却
H 电学
01
基本电气元件
F
磁体;电感;变压器;磁性材料的选择
27
变压器或电感器的一般零部件
08
冷却;通风
10
液体冷却
12
油冷却
H 电学
01
基本电气元件
F
磁体;电感;变压器;磁性材料的选择
41
专用于制造或装配包含在本小类的装置的设备或方法
申请人: Tokyo Shibaura Denki Kabushiki Kaisha
发明人: Ito Tatsuo
Murata Tadao
Horiuchi Miyoshi
Goto Masahiro
代理人: Oblon, Fisher, Spivak, McClelland & Maier
优先权数据: 56175429 31.10.1981 JP
标题: (EN) Method of manufacturing the peripheral wall of a tank for an oil-immersed electric apparatus
摘要: front page image
(EN)

A method of manufacturing the peripheral wall of a tank for an oil-immersed electric apparatus which comprises manufacturing a panel unit through the steps of: PA1 fabricating a panel by pressing a thin steel sheet to form an upward extending flange along both edges of the panel and provide a plurality of reinforcement depressions concaved toward the backside of the flat portion of said panel; PA1 folding the panel into two parts with the surface of the panel kept outside along the central line extending between both edges of the panel to fabricate a hollow fin; PA1 joining both sides of the folded fin by spot welding the reinforcement depressions; and PA1 welding together the closely facing edges of both sides of the fin, PA1 and constructing the peripheral wall of the tank by joining together a plurality of panel units fabricated through the above-mentioned steps by welding the flanges of said panel units.