发明名称 |
Method and device for repairing the internal surface of an adapter passing through the head of the vessel of a nuclear reactor |
摘要 |
A detection and inspection of cracks (135) on the internal surface of the adapter (2) is carried out, at least in a zone close to the weld for fastening the adapter (2), using remote inspection operations comprising at least one dye penetration inspection with remote borescope examination of the cracks (135) revealed by the dye penetration. At least one excavation cavity (136) is made by machining to a specified depth of the internal surface of the adapter (2) having a crack (135). As a function of the result of the dye penetration inspection, the zone is or is not built back up after excavation. The device comprises an assembly for moving a rod in translation and in rotation inside the adapter. Brushing, cleaning, or sprinkling means may be fastened to the end of the rod. The device also includes a second assembly for moving a borescope support inside the adapter and tooling for machining the internal surface of the adapter.
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申请公布号 |
US5434895(A) |
申请公布日期 |
1995.07.18 |
申请号 |
US19940312944 |
申请日期 |
1994.09.30 |
申请人 |
FRAMATOME |
发明人 |
DOMY, ALAIN;HEBERT, CLAUDE;BRAYER, LAURENT |
分类号 |
G21C13/036;G21C17/01;G21C19/02;(IPC1-7):G21C19/00 |
主分类号 |
G21C13/036 |
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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