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1. (WO2017131054) HIGH STRENGTH ZINC PLATED STEEL SHEET, HIGH STRENGTH MEMBER, AND PRODUCTION METHOD FOR HIGH STRENGTH ZINC PLATED STEEL SHEET
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/131054 International Application No.: PCT/JP2017/002615
Publication Date: 03.08.2017 International Filing Date: 26.01.2017
IPC:
C22C 38/00 (2006.01) ,C21D 9/46 (2006.01) ,C22C 38/06 (2006.01) ,C22C 38/60 (2006.01) ,C23C 2/06 (2006.01) ,C23C 2/28 (2006.01) ,C23C 2/40 (2006.01)
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
D
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
9
Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor
46
for sheet metals
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
06
containing aluminium
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
60
containing lead, selenium, tellurium or antimony, or more than 0.04% by weight of sulfur
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
2
Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
04
characterised by the coating material
06
Zinc or cadmium or alloys based thereon
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
2
Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
26
After-treatment
28
Thermal after-treatment, e.g. treatment in oil bath
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
2
Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
34
characterised by the shape of the material to be treated
36
Elongated material
40
Plates; Strips
Applicants:
JFEスチール株式会社 JFE STEEL CORPORATION [JP/JP]; 東京都千代田区内幸町二丁目2番3号 2-3, Uchisaiwai-cho 2-chome, Chiyoda-ku, Tokyo 1000011, JP
Inventors:
長谷川 寛 HASEGAWA Hiroshi; JP
船川 義正 FUNAKAWA Yoshimasa; JP
吉冨 裕美 YOSHITOMI Hiromi; JP
牧水 洋一 MAKIMIZU Yoichi; JP
鈴木 善継 SUZUKI Yoshitsugu; JP
武田 玄太郎 TAKEDA Gentaro; JP
鈴木 克一 SUZUKI Yoshikazu; JP
姫井 善正 HIMEI Yoshimasa; JP
Agent:
熊坂 晃 KUMASAKA Akira; JP
井上 茂 INOUE Shigeru; JP
Priority Data:
2016-01535829.01.2016JP
Title (EN) HIGH STRENGTH ZINC PLATED STEEL SHEET, HIGH STRENGTH MEMBER, AND PRODUCTION METHOD FOR HIGH STRENGTH ZINC PLATED STEEL SHEET
(FR) TÔLE D'ACIER PLAQUÉE DE ZINC DE HAUTE RÉSISTANCE, ÉLÉMENT DE HAUTE RÉSISTANCE ET PROCÉDÉ DE FABRICATION DE TÔLE D'ACIER PLAQUÉE DE ZINC DE HAUTE RÉSISTANCE
(JA) 高強度亜鉛めっき鋼板、高強度部材及び高強度亜鉛めっき鋼板の製造方法
Abstract:
(EN) Provided are: a high strength zinc plated steel sheet that can improve impact resistance after being processed; a production method therefor; and a high strength member obtained using the steel sheet. The high strength zinc plated steel sheet is characterized by being provided with: a steel sheet that has a specific component composition and a steel structure composed of a total area percentage 0-55% of ferrite and a bainite not containing a carbide, a total area percentage 45-100% of martensite and a bainite containing a carbide, and an area percentage 0-5% of residual austenite; and a zinc plating layer formed on the steel sheet, wherein the density of gaps dividing the overall thickness of the zinc plating layer in the sheet thickness cross-section vertical with respect to the rolling direction of the zinc plating layer is not less than 10 gaps/mm.
(FR) L'invention concerne : une tôle d'acier plaquée de zinc de haute résistance qui peut améliorer la résistance à l'impact après le traitement ; un procédé pour fabriquer ladite tôle ; un élément de haute résistance obtenu à l'aide de la tôle d'acier. La tôle d'acier plaquée de zinc de haute résistance est caractérisée en ce qu'elle comprend : une tôle d'acier qui possède une composition élémentaire précise et une structure d'acier composée d'un pourcentage surfacique total de 0 à 55 % de ferrite et d'une bainite ne contenant pas de carbure, d'un pourcentage surfacique total de 45 à 100 % de martensite et d'une bainite contenant un carbure, et d'un pourcentage surfacique de 0 à 5 % d'austénite résiduelle ; une couche de placage de zinc formée sur la tôle d'acier, la densité d'écarts divisant l'épaisseur totale de la couche de zinc dans la section verticale d'épaisseur de la tôle par rapport à la direction de laminage de la couche placage de zinc n'étant pas inférieure à 10 écarts/mm.
(JA) 加工後の耐衝撃性を改善できる高強度亜鉛めっき鋼板及びその製造方法、当該鋼板を用いて得た高強度部材を提供する。 特定の成分組成と、フェライトと炭化物を有さないベイナイトを面積率の合計で0~55%、マルテンサイトと炭化物を有するベイナイトを面積率の合計で45~100%、残留オーステナイトを面積率で0~5%からなる鋼組織と、を有する鋼板と、該鋼板上に形成された亜鉛めっき層と、を備え、前記亜鉛めっき層の圧延方向と垂直な板厚断面における亜鉛めっき層全厚を分断する間隙の密度が10個/mm以上であることを特徴とする高強度亜鉛めっき鋼板とする。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
JPWO2017131054KR1020180095699ID2018/09689CN108603264IN201817022382EP3409806
US20190040511