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1. 发明专利

JPH04340494A MANUFACTURE OF SHAPE VARIABLE TUBE FOR DRIVING SUPPORT MEMBER FOR STRUCTURE INSIDE NUCLEAR FUSION REACTOR 失效
公开(公告)号：JPH04340494A
公开(公告)日：1992-11-26
申请号：JP14077791
申请日：1991-05-17
申请人： KAWASAKI HEAVY IND LTD , JAPAN ATOMIC ENERGY RES INST
发明人： YAMAZAKI SEIICHIRO , KOBAYASHI TAKESHI , KUDO MASA , YAMADA TAKESHI , NISHIO SATOSHI , SATOU KEISUKE
IPC分类号： G21B1/05 , G21B1/00 , G21B1/11 , G21B1/25
摘要： PURPOSE:To manufacture precisely in a relatively short time a flexible tube of a flat, small-thickness and single-layer or multilayer structure which drives a cotter supporting a structure such as a blanket or a shield which is provided in a torus-shaped magnetic confinement type nuclear fusion reactor such as a tokamak type one. CONSTITUTION:A round tube formed of a material having a characteristic of superplasticity is inserted into a mold 3 of a required shape, the temperature of the round tube is raised to a temperature whereat the characteristic of superplasticity is revealed, and simultaneously an internal pressure is loaded on the aforesaid round tube so that the tube be brought into pressure contact with the inner surface of the aforesaid mold 3, whereby a flexible tube of a required shape is manufactured. By using a tube of a small-thickness and multilayer structure for the round tube, besides, the flexible tube of the small- thickness and multilayer structure is manufactured.

2. 发明专利

JPH06142781A MANUFACTURE OF FLAT TUBE 失效
公开(公告)号：JPH06142781A
公开(公告)日：1994-05-24
申请号：JP31443392
申请日：1992-10-30
申请人： KAWASAKI HEAVY IND LTD
发明人： KUDO MASA , IIO SHINYA , HIRATA RYOZO
IPC分类号： B21C37/15 , B21D26/033 , B21D26/047 , B21D26/051 , B21D26/055 , B21D26/02
摘要： PURPOSE:To make a flat tube of flexible tube used in an internal structure of a nuclear fusion reactor the uniform thickness-walled tube, and to manufacture the tube with high reliability. CONSTITUTION:Dies 4, 4' are divided into heating zones of 1) to 9)..., each heating zone is heated uniformly as much as possible, the gas pressure is impressed in the most suitable pattern of the gas pressure impression of try and error following the simulation, further the super-plastic forming process is executed by dividing the process into plural steps of a prescribed number, executing the super-plastic forming to a work with use of the die matching the work in each step successively, and after completing one step, the next step is started, thus the process comprises respective steps independent of each other. Then, in order to obtain a multilayered flexible tube, each single layer tube 13, 13', 13'' is coated with lubricant by spraying every time respective tubes are laminated on each other. Therefore, the wall thickness of the flat tube 2 is made uniform and the thin walled part is not generated, the generation of break is prevented and the reliability of the flexible tube is increased.

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