Closing Method and Closing Machine
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United States of America Patent
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Issued Date -
Nov 5, 2009
app pub date -
Mar 30, 2006
filing date -
Mar 31, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In a closing machine (1) for closing an open end of a work piece (9) by pressing a die (4) heated by a high frequency heating device (2) against the work piece (9) rotating about an axial center, the die (4) comprises a die main body (601) which contacts the work piece (9) and a holder (611) which surrounds the die main body (601). The die main body (601) is formed from cemented carbide whereas the holder (611) is formed from a steel material. The holder (611) is subjected to induction heating by the high-frequency heating device (2), whereas the die main body (601) is heated by heat transfer from the holder (611).
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