Title:
DUAL-HARDNESS CLAD STEEL PLATE AND PRODUCTION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/101770
Kind Code:
A1
Abstract:
A dual-hardness clad steel plate. One surface of the steel plate is a high-hardness layer, the other surface of the steel plate is a low-hardness layer, and a combination of atoms is achieved between the high-hardness layer and the low-hardness layer by rolling bonding, wherein Mn13 steel is adopted for the low-hardness layer, and the Brinell hardness of the high-hardness layer is greater than 600. Further disclosed is a production method of the dual-hardness clad steel plate, comprising: 1) respectively preparing a high-hardness layer slab and a low-hardness layer slab; 2) assembling: preprocessing combined faces of the slabs, carrying out peripheral welded sealing on joint faces of the slabs, and carrying out vacuumizing treatment on a composite slab after welded sealing; 3) heating; 4) carrying out composite rolling; 5) cooling; and 6) carrying out thermal treatment, wherein the heating temperature is 1050-1100℃, the heating time is 2-3min/mm × slab thickness, and water cooling is performed on the heated slab, and the water temperature is lower than 40℃. The steel plate has different hardness characteristics and good low-temperature toughness.
More Like This:
| WO/1993/000389 | BALLISTIC COMPOSITE |
| JP3628257 | Composite armor panel |
| WO/1999/060327 | COMPOSITE ARMOR PLATE |
Inventors:
ZHAO XIAOTING (CN)
YAN BO (CN)
YAO LIANDENG (CN)
JIAO SIHAI (CN)
LI HONGBIN (CN)
YAN BO (CN)
YAO LIANDENG (CN)
JIAO SIHAI (CN)
LI HONGBIN (CN)
Application Number:
PCT/CN2016/109781
Publication Date:
June 22, 2017
Filing Date:
December 14, 2016
Export Citation:
Assignee:
BAOSHAN IRON & STEEL (CN)
International Classes:
F41H5/04; B21B1/38; B32B15/00
Foreign References:
| CN105499269A | 2016-04-20 | |||
| US3694174A | 1972-09-26 | |||
| CN103451546A | 2013-12-18 | |||
| CN105088090A | 2015-11-25 | |||
| CN103348213A | 2013-10-09 | |||
| CN104501660A | 2015-04-08 | |||
| CN2715093Y | 2005-08-03 | |||
| US20100257997A1 | 2010-10-14 | |||
| EP2465954A1 | 2012-06-20 | |||
| CN202750372U | 2013-02-20 |
Other References:
See also references of EP 3392600A4
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
Download PDF:
Previous Patent: DOUBLE-TRACK BEAM FOR MAGNETIC-LEVITATION RAIL-WRAP-TYPE RAIL TRANSIT
Next Patent: SIMPLE AND POWERFUL MOP WATER-SQUEEZING COMBINATION
Next Patent: SIMPLE AND POWERFUL MOP WATER-SQUEEZING COMBINATION