EP1666624B1 - Hot dip zinc plated steel sheet and method for production thereof - Google Patents

Hot dip zinc plated steel sheet and method for production thereof Download PDF

Info

Publication number
EP1666624B1
EP1666624B1 EP04772660.9A EP04772660A EP1666624B1 EP 1666624 B1 EP1666624 B1 EP 1666624B1 EP 04772660 A EP04772660 A EP 04772660A EP 1666624 B1 EP1666624 B1 EP 1666624B1
Authority
EP
European Patent Office
Prior art keywords
steel sheet
hot dip
film
galvanized steel
dip galvanized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP04772660.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1666624A4 (en
EP1666624A1 (en
Inventor
Shoichiro I.P. Dept. JFE Steel Corporation TAIRA
Yoshiharu I.P. Dept. JFE Steel Corp. SUGIMOTO
Yoichi I.P. Dept. JFE Steel Corporation MIYAKAWA
Akira I.P. Dept. JFE Steel Corporation GAMOU
Masayasu I.P. Dept. JFE Steel Corporation NAGOSHI
Takashi I.P. Dept. JFE Steel Corporation KAWANO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP1666624A1 publication Critical patent/EP1666624A1/en
Publication of EP1666624A4 publication Critical patent/EP1666624A4/en
Application granted granted Critical
Publication of EP1666624B1 publication Critical patent/EP1666624B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06Zinc or cadmium or alloys based thereon
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C18/00Alloys based on zinc
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26After-treatment
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26After-treatment
    • C23C2/28Thermal after-treatment, e.g. treatment in oil bath
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36Elongated material
    • C23C2/40Plates; Strips
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • C23C22/08Orthophosphates
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/48Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/53Treatment of zinc or alloys based thereon
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/78Pretreatment of the material to be coated
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/82After-treatment
    • C23C22/83Chemical after-treatment

Definitions

  • a common practice to improve the press-formability of zinc-based plated steel sheet is a method of coating a high viscosity lubricant oil.
  • the method has problems such as the generation of defects during the painting stage caused by insufficient degreasing, and the instable press-formability during the press-forming stage caused by absence of the lubricant oil.
  • minimization of the quantity of lubricant oil is an effective means. To do this, however, the improvement in the press-formability of zinc-based plated steel sheet is required.
  • the average Fe concentration in the alloy layer increases, the ⁇ phase which is hard and brittle is likely formed at the interface between the plating and the steel sheet, thereby likely inducing a phenomenon of peeling of plating (what is called the "powdering") in the vicinity of the interface during the press-forming stage.
  • JP-A-4-88196 discloses a technology to improve the press-formability and the phosphatability by forming an oxide film composed mainly of a P oxide on the surface of a zinc-based plated steel sheet by dipping the steel sheet in an aqueous solution of pH 2 to 6, containing 5 to 6 g/liter of sodium phosphate, by applying electrodeposition treatment in the aqueous solution, or by spraying the aqueous solution onto the steel sheet.
  • the film of an oxide containing Zn and Fe likely becomes fine lamellar-like oxides compared with the film of oxide only of Zn, which likely forms coarse plate-like oxides.
  • the present invention is also applicable to a galvannealed steel sheet on which the hot dip galvanizing layer is processed by alloying treatment.
  • the Fe ion reduction reaction begins to precipitate trace amount of Fe on the surface of plating layer , which suppresses the excess growth of the film of O-containing compound composed mainly of Zn, thereby forming a film of very fine compound.
  • the film composed of a compound containing Zn, Fe, and O contains elements such as F, Mg, Al, Si, P, S, Cl, K, Ca, and Ba, existing in the acidic solution, or contains adsorbed water, the effect of the present invention is not deteriorated.
  • the film is not necessarily formed continuously, and the film covering not the whole area of plateau is also effective. Nevertheless, to decrease the friction resistance, the film preferably covers 60% or more of the plateau.
  • Galvannealed layer was formed on each of cold-rolled steel sheets having 0.8 mm of thickness using an ordinary method, which plated steel sheets were then processed by temper-rolling. After that, a film was formed on the surface of zinc plating layer under the respective treatment conditions given in Table 1 to prepare the sample Nos. 1 to 22.
  • a comparative sample 11 for determining the coefficient of friction is fixed on a sample table 12 which is fixed on the upper face of a horizontally movable slide table 13.
  • a vertically movable slide table support 15 equipped with a roller 14 contacting with the slide table 13.
  • a first load cell 17 is attached to the slide table support 15.
  • the first load cell determines the pressing load N applied from a bead 16 to the sample 11 by pushing-up the slide table support 15.
  • a second load cell 18 is attached to an end of the slide table 13.
  • the second load cell 18 determines the sliding resistance F by moving the slide table 13 in the horizontal direction in a state of pressing the bead 16 against the comparative sample 11.
  • the tests were conducted by coating a lubricant oil on the surface of the comparative sample 11.
  • the applied lubricant oil was PRETON R352L, a washing oil for press-work manufactured by Sugimura Chemical Industrial Co., Ltd.
  • Figure 2 and Fig. 3 show the shapes of applied beads.
  • the bead 16 shown in Fig. 2 has the dimensions of 10 mm in width, 12 mm in the length in the sliding direction, 3 mm in the length in the sliding direction to which the sample is pressed, and 4.5 mm in the radius at each end in the sliding direction.
  • Figure 6 is a schematic drawing of the draw-bead tester used in the examples.
  • the steel sheet was dipped into an acidic solution at 50°C and pH 2.0 to form a liquid film on the surface of the steel sheet using squeeze rolls 3.
  • the formed liquid film was washed in a washing tank 5 by spraying hot water at 50 °C against the steel sheet, and then the steel sheet was passed through a neutralization tank 6 without applying neutralization.
  • the steel sheet was washed by spraying water at 50°C thereto in a washing tank 7, followed by drying in a drier 8, thus forming the film on the surface of plating layer.
  • the quantity of liquid film was adjusted by varying the pressure of squeeze rolls 3.
  • the acidic solution in the acidic solution tank 2 was an acidic solution which contained a pH buffer prepared by mixing 30 g/liter of disodium hydrogenphosphate and 20 g/liter of citric acid, adding a specific amount of iron (II) sulfate to add Fe ion thereto, and further adding sulfuric acid to adjust pH.
  • a pH buffer prepared by mixing 30 g/liter of disodium hydrogenphosphate and 20 g/liter of citric acid, adding a specific amount of iron (II) sulfate to add Fe ion thereto, and further adding sulfuric acid to adjust pH.
  • an acidic solution containing only iron (II) sulfate, not containing pH buffer was used, (Sample Nos. 3 to 5).
  • an acidic solution containing Fe(III) sulfate was also applied to some of the samples, (sample Nos. 18 to 23).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Coating With Molten Metal (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Chemical Treatment Of Metals (AREA)
EP04772660.9A 2003-08-29 2004-08-26 Hot dip zinc plated steel sheet and method for production thereof Active EP1666624B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2003307073 2003-08-29
JP2003307072 2003-08-29
JP2003324771 2003-09-17
JP2003324770 2003-09-17
JP2004008967 2004-01-16
PCT/JP2004/012704 WO2005021823A1 (ja) 2003-08-29 2004-08-26 溶融亜鉛めっき鋼板およびその製造方法

Publications (3)

Publication Number Publication Date
EP1666624A1 EP1666624A1 (en) 2006-06-07
EP1666624A4 EP1666624A4 (en) 2009-07-22
EP1666624B1 true EP1666624B1 (en) 2017-06-07

Family

ID=34280119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04772660.9A Active EP1666624B1 (en) 2003-08-29 2004-08-26 Hot dip zinc plated steel sheet and method for production thereof

Country Status (6)

Country Link
EP (1) EP1666624B1 (ja)
KR (1) KR20060033811A (ja)
CN (1) CN1846011B (ja)
CA (1) CA2535894C (ja)
TW (1) TWI288188B (ja)
WO (1) WO2005021823A1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2864552B1 (fr) * 2003-12-24 2006-07-21 Usinor Traitement de surface par hydroxysulfate
WO2010070942A1 (ja) * 2008-12-16 2010-06-24 Jfeスチール株式会社 亜鉛系めっき鋼板およびその製造方法
JP5648309B2 (ja) * 2010-03-31 2015-01-07 Jfeスチール株式会社 溶融亜鉛系めっき鋼板の製造方法
CN102888578B (zh) * 2011-07-19 2014-12-24 宝山钢铁股份有限公司 一种具有优良表面摩擦特性的热镀锌钢板的生产方法
CN110268083B (zh) * 2017-02-10 2021-05-28 杰富意钢铁株式会社 高强度镀锌钢板及其制造方法
CN113817973B (zh) * 2021-09-23 2022-12-27 马鞍山钢铁股份有限公司 改善合金化镀锌热成形钢表面氧化和涂装性能的表面处理液、热成形钢板及制备方法和应用
CN113832425B (zh) * 2021-09-23 2022-12-27 马鞍山钢铁股份有限公司 一种具有优良耐黑变性能和胶粘性能的锌镁铝镀层钢板及其制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000160358A (ja) * 1998-11-25 2000-06-13 Sumitomo Metal Ind Ltd 溶融亜鉛系めっき鋼板
JP2003306781A (ja) * 2002-04-18 2003-10-31 Jfe Steel Kk 合金化溶融亜鉛めっき鋼板の製造方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3318385B2 (ja) * 1993-03-04 2002-08-26 川崎製鉄株式会社 プレス加工性と耐めっき剥離性に優れた合金化溶融亜鉛めっき鋼板
US6129995A (en) * 1997-03-19 2000-10-10 Nkk Corporation Zinciferous coated steel sheet and method for producing the same
EP1288325B1 (en) * 2000-04-24 2014-10-15 JFE Steel Corporation Method for production of galvannealed sheet steel
JP3608519B2 (ja) * 2001-03-05 2005-01-12 Jfeスチール株式会社 合金化溶融亜鉛めっき鋼板の製造方法および合金化溶融亜鉛めっき鋼板
JP3570409B2 (ja) * 2001-11-01 2004-09-29 Jfeスチール株式会社 合金化溶融亜鉛めっき鋼板
JP3797478B2 (ja) * 2001-11-01 2006-07-19 Jfeスチール株式会社 合金化溶融亜鉛めっき鋼板
MX342803B (es) * 2003-04-18 2016-10-13 Jfe Steel Corp Placa de acero galvanizada revestida con zinc por baño caliente, excelente en formabilidad de prensado y metodo par su elaboracion.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000160358A (ja) * 1998-11-25 2000-06-13 Sumitomo Metal Ind Ltd 溶融亜鉛系めっき鋼板
JP2003306781A (ja) * 2002-04-18 2003-10-31 Jfe Steel Kk 合金化溶融亜鉛めっき鋼板の製造方法

Also Published As

Publication number Publication date
TW200516172A (en) 2005-05-16
CN1846011B (zh) 2011-06-08
WO2005021823A1 (ja) 2005-03-10
EP1666624A4 (en) 2009-07-22
CA2535894A1 (en) 2005-03-10
EP1666624A1 (en) 2006-06-07
TWI288188B (en) 2007-10-11
CN1846011A (zh) 2006-10-11
KR20060033811A (ko) 2006-04-19
CA2535894C (en) 2009-10-06

Similar Documents

Publication Publication Date Title
EP1616973B1 (en) Zinc hot dip galvanized steel plate excellent in press formability and method for production thereof
EP2014783B1 (en) Process for producing alloyed hot-dip zinc-plated steel sheet and alloyed hot-dip zinc-plated steel sheet
EP1288325A1 (en) Galvannealed sheet steel and method for production thereof
EP2947180B1 (en) Manufacturing method for zinc-plated steel sheet
EP0866149B1 (en) Zinciferous coated steel sheet and method for producing the same
JP3346338B2 (ja) 亜鉛系めっき鋼板およびその製造方法
EP1666624B1 (en) Hot dip zinc plated steel sheet and method for production thereof
EP0778362B1 (en) Zinciferous plated steel sheet and method for manufacturing same
US8815349B2 (en) Hot dip galvanized steel sheet and method for manufacturing same
JP4517887B2 (ja) 溶融亜鉛めっき鋼板の製造方法および溶融亜鉛めっき鋼板
JP4826486B2 (ja) 合金化溶融亜鉛めっき鋼板の製造方法
JP3111903B2 (ja) 亜鉛系メッキ鋼板の製造方法
JP3111904B2 (ja) 亜鉛系メッキ鋼板の製造方法
JP3279198B2 (ja) プレス成形性および接着性に優れた亜鉛系メッキ鋼板
JP3191687B2 (ja) 亜鉛系メッキ鋼板
JPH10212563A (ja) 亜鉛系メッキ鋼板の製造方法
JP3314606B2 (ja) 潤滑性に優れた亜鉛系めっき鋼板及びその製法
JP3303768B2 (ja) 亜鉛系メッキ鋼板の製造方法
JP3191660B2 (ja) 亜鉛系メッキ鋼板およびその製造方法
JP3111889B2 (ja) 亜鉛系メッキ鋼板
JP2001329352A (ja) 摺動性に優れた合金化溶融亜鉛めっき鋼板
JP3191635B2 (ja) 亜鉛系メッキ鋼板
JP3191637B2 (ja) 亜鉛系メッキ鋼板の製造方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20060202

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR GB

A4 Supplementary search report drawn up and despatched

Effective date: 20090624

17Q First examination report despatched

Effective date: 20100127

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160823

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTC Intention to grant announced (deleted)
INTG Intention to grant announced

Effective date: 20170104

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602004051367

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602004051367

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20180308

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230512

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230706

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230703

Year of fee payment: 20

Ref country code: DE

Payment date: 20230703

Year of fee payment: 20