Title:
RAPID COOLING QUENCHING DEVICE AND RAPID COOLING QUENCHING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/115742
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a rapid cooling quenching device and method for metal sheets, the device and method being capable of suppressing a reduction in the cooling speed of the metal sheets while limiting shape defects occurring in the metal sheets during rapid cooling quenching, in a continuous annealing facility for annealing while continuously passing metal sheets,. This rapid cooling quenching device for metal sheets immerses high-temperature metal sheets in a liquid to cool the metal sheets, and is characterized by being provided with: a water-bath that contains the liquid in which the metal sheets are immersed; a jetting device, at least a portion of which is provided in the liquid in the water-bath, and which is provided with a plurality of nozzles jetting the liquid onto the front surface and rear surface of the metal sheets; and a pair or a plurality of pairs of constraining rolls which constrain the metal sheets and are provided between an inlet side end section and an outlet side end section of the jetting device, wherein the nozzles closest to the constraining rolls in the jetting device are inclined from a horizontal plane toward the constraining rolls.
Inventors:
YOSHIMOTO SOSHI (JP)
SUGIHARA HIROKAZU (JP)
TANAKA FUJIO (JP)
HASHIMUKAI TOMOHIRO (JP)
SUGIHARA HIROKAZU (JP)
TANAKA FUJIO (JP)
HASHIMUKAI TOMOHIRO (JP)
Application Number:
PCT/JP2016/088643
Publication Date:
July 06, 2017
Filing Date:
December 26, 2016
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D1/63; C21D9/573
Foreign References:
| CN101993995A | 2011-03-30 | |||
| JPS62259610A | 1987-11-12 | |||
| JPH0978143A | 1997-03-25 | |||
| JPS462733B1 | 1971-01-23 | |||
| JPS5218124B1 | 1977-05-19 | |||
| JP2014070272A | 2014-04-21 | |||
| JP2014240836A | 2014-12-25 | |||
| JP2011184773A | 2011-09-22 | |||
| JPH11193418A | 1999-07-21 |
Other References:
See also references of EP 3399056A4
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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