Apparatus to quench a ring-shaped article
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United States of America Patent
Stats
-
Sep 27, 2016
Grant Date -
May 21, 2015
app pub date -
Jan 29, 2015
filing date -
Sep 28, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus for quenching a ring shaped article includes a heating station for heating the ring shaped article to a quenching temperature; a primary cooling station for cooling the ring shaped article to a deformation correction initiating temperature; and a secondary cooling station for cooling the ring shaped article down to a temperature lower than a martensitic transformation point. The heating station includes a preheating station for heating by induction heating the ring shaped article to a predetermined preheating temperature near to the quenching temperature and a soaking station for heating the ring shaped article, which has been heated to the preheating temperature by the preheating station, to the quenching temperature within a continuous heating furnace. The preheating station includes a rotary table and a heating coil arranged to straddle between inner and outer peripheral surfaces of the ring shaped article.
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- 0 % this patent is cited more than
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Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 27, 2028 |
