Steam generator heating tube repair device and repair method
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United States of America Patent
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Sep 6, 2016
Grant Date -
Aug 8, 2013
app pub date -
Dec 17, 2012
filing date -
Dec 16, 2011
priority date (Note) -
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Abstract
A steam generator heating tube repair sleeve has an encircling flange, conical region, and a straight region. The encircling flange merges into a conical region that tapers on the outside in the direction of the other sleeve end and which is adjoined to the straight region. A steam generator heating tube repair method is used to repair a steam generator heating tube that is installed in a steam generator having a defective tube end. The method includes conical milling out of the defective tube end, inserting a steam generator heating tube repair sleeve into the conically milled-out defective tube end, rolling in the steam generator heating tube repair sleeve, and welding the flange region.
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