Title:
STEEL PLATE COMPRISING ZINC-ALUMINUM-MAGNESIUM COATING AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/120334
Kind Code:
A1
Abstract:
A steel plate comprising a zinc-aluminum-magnesium coating and a manufacturing method therefor. The method may comprise: pretreating a cold-rolled steel plate; immersing the pretreated steel plate in a plating solution containing zinc, aluminum and magnesium as main components for immersion plating treatment, so that the plating solution is coated on at least one of the two surfaces of the steel plate to form a plating solution layer; using an air knife to control the thickness of the plating solution layer on the at least one surface of the steel plate; and cooling the steel plate coated with the plating solution layer. The plating solution may comprise the following components in percentage by mass: 1.5-2.3% of Al, 1.2-1.8% of Mg, 0.01-0.08% of La and Ce, and 0.01-0.08% of at least one of Cu, Cr and Ni, with the balance being Zn and inevitable impurities, wherein the mass ratio of Al to Mg is 1.2 to 1.4, and the mass ratio of La to Ce is 2:1.
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Inventors:
WANG XINDONG (CN)
LI JIANXIN (CN)
QI JIANJUN (CN)
SUN LI (CN)
ZHANG PENG (CN)
MEI SHUWEN (CN)
ZHANG JIE (CN)
ZHANG QIFU (CN)
SONG ZHIGANG (CN)
YANG SHIHONG (CN)
JIANG SHEMING (CN)
LI WENTIAN (CN)
GONG JUNJIE (CN)
CAO HONGWEI (CN)
LIANG AIGUO (CN)
WANG XUEHUI (CN)
QI ZHENNAN (CN)
CAI XIAO (CN)
SUN KAI (CN)
YANG LIFANG (CN)
LI JIANXIN (CN)
QI JIANJUN (CN)
SUN LI (CN)
ZHANG PENG (CN)
MEI SHUWEN (CN)
ZHANG JIE (CN)
ZHANG QIFU (CN)
SONG ZHIGANG (CN)
YANG SHIHONG (CN)
JIANG SHEMING (CN)
LI WENTIAN (CN)
GONG JUNJIE (CN)
CAO HONGWEI (CN)
LIANG AIGUO (CN)
WANG XUEHUI (CN)
QI ZHENNAN (CN)
CAI XIAO (CN)
SUN KAI (CN)
YANG LIFANG (CN)
Application Number:
PCT/CN2019/130630
Publication Date:
June 24, 2021
Filing Date:
December 31, 2019
Export Citation:
Assignee:
HBIS CO LTD (CN)
TANGSHAN IRON&STEEL GROUP CO LTD (CN)
HBIS COMPANY LTD TANGSHAN BRANCH (CN)
NEW METALLURGY HI TECH GROUP CO LTD (CN)
TANGSHAN IRON&STEEL GROUP CO LTD (CN)
HBIS COMPANY LTD TANGSHAN BRANCH (CN)
NEW METALLURGY HI TECH GROUP CO LTD (CN)
International Classes:
C23C2/06; C22C18/04; C23C2/02; C23C2/20; C23C2/40
Domestic Patent References:
| WO2015028738A1 | 2015-03-05 |
Foreign References:
| CN109536864A | 2019-03-29 | |||
| CN103834890A | 2014-06-04 | |||
| CN104419867A | 2015-03-18 | |||
| KR101376381B1 | 2014-03-20 |
Other References:
See also references of EP 4079920A4
Attorney, Agent or Firm:
MING & SURE INTELLECTUAL PROPERTY LAW FIRM (CN)
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