Method for manufacturing ring-rolled product
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United States of America Patent
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Oct 5, 2021
Grant Date -
Oct 1, 2020
app pub date -
Dec 1, 2016
filing date -
Dec 3, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A method for manufacturing a ring-rolled product, which manufactures the ring-rolled product from a ring material, includes a step of rolling the ring material, which has an operation of rolling the ring material from both inner and outer circumferential sides thereof between a mandrel roll and a main roll in a state of rotating the ring material toward one side in a circumferential direction thereof, and induction-heating the ring material by induction heating elements. An induction heating element is disposed on only an outer circumferential side of the ring material or is disposed on each of both the inner and outer circumferential sides in a region immediately before the rolling, or an inclined portion is provided in an outer-peripheral edge portion of a coil in the induction heating element.
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