发明名称 |
Radioactive substance containment vessel, and radioactive substance containment vessel producing device and producing method |
摘要 |
In the metal billet to be used for hot dilation forming, a forward side with respect to the pressing direction has a quadrate section and its diagonal length is not more than an inner diameter of a container. Moreover, a backward side with respect to the pressing direction has a circular section and its diameter is substantially same as the inner diameter of the container. The metal billet is heated to a temperature suitable for press working and is set into a container for press forming. While a center of a workpiece of the metal billet is being bored by a boring punch to be operated by a pressing machine, the metal billet is hot-dilated so that a bottomed container for a cask is formed.
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申请公布号 |
US7462853(B2) |
申请公布日期 |
2008.12.09 |
申请号 |
US20020926811 |
申请日期 |
2002.07.01 |
申请人 |
MITSUBISHI HEAVY INDUSTRIES, LTD. |
发明人 |
FUNAKOSHI YOSHIHIKO;TSUNEZUMI TAKESHI;MIZUNO NAOHIRO;TOKUNO KATSUHIKO;MATSUMOTO CHIKAYUKI;TAURA YOSHIHARU;SHIROGANE SHIGENORI;OHSONO KATSUNARI;MATSUOKA TOSHIHIRO |
分类号 |
G21F5/00;B21C1/26;B21C23/01;B21C23/20;B21J5/10;B21J9/04;B21K21/06;G21C19/32;G21F5/008 |
主分类号 |
G21F5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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