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Title:
HOT-ROLLING ONLINE MOVABLE THERMAL INSULATION HEAT TREATMENT PROCESS, AND HEAT TREATMENT LINE
Document Type and Number:
WIPO Patent Application WO/2019/057116
Kind Code:
A1
Abstract:
A hot-rolling online movable thermal insulation heat treatment process, and a heat treatment line. The heat treatment process comprises: heating, rolling, layer-cooling, and reeling a slab into a hot coil state; assembling a movable hot coil thermal insulation heat treatment apparatus (40) for the hot coil in 30 minutes after the hot coil is unloaded and bundled, performing heat treatment on the hot coil, and conveying the hot coil to a hot coil thermal insulation treatment area online; after 1 to 48 hours of heat treatment, cooling the hot coil by means of air cooling and then conveying the steel coil to storage. The coiling temperature is controlled between 250°C to 750°C. The heat treatment process is effectively combined with a hot coiling process, and a hot coil is subjected to high efficient thermal insulation heat treatment in the first place; the hot coil subjected to the thermal insulation treatment moves online with the thermal insulation apparatus. Time-based differentiated requirements on the heat treatment process are met, product performance can be effectively improved, investment costs in one time are low, demands for mass production is satisfied, and energy is saved.

Inventors:
CHEN YONG (CN)
ZHU WEILIN (CN)
WANG YE (CN)
ZHAO CHUNHE (CN)
SONG TAO (CN)
Application Number:
PCT/CN2018/106709
Publication Date:
March 28, 2019
Filing Date:
September 20, 2018
Export Citation:
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Assignee:
BAOSTEEL ZHANJIANG IRON & STEEL CO LTD (CN)
BAOSHAN IRON & STEEL (CN)
SHANGHAI HELI HYDRAULIC MECH & ELECTRICAL CO LTD (CN)
International Classes:
B21B45/00
Foreign References:
CN107470377A2017-12-15
CN207170521U2018-04-03
CN103057842A2013-04-24
CN203064459U2013-07-17
CN203497055U2014-03-26
CN206447906U2017-08-29
CN202316643U2012-07-11
US20020076289A12002-06-20
CN201210338335A2012-09-13
CN201710853613A2017-09-20
JP2010094710A2010-04-30
KR101589913B12016-02-01
CN101413051A2009-04-22
Other References:
See also references of EP 3685931A4
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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