CN104379776B - 钢带的连续退火方法、钢带的连续退火装置、熔融镀锌钢带的制造方法以及熔融镀锌钢带的制造装置 - Google Patents
钢带的连续退火方法、钢带的连续退火装置、熔融镀锌钢带的制造方法以及熔融镀锌钢带的制造装置 Download PDFInfo
- Publication number
- CN104379776B CN104379776B CN201380030809.2A CN201380030809A CN104379776B CN 104379776 B CN104379776 B CN 104379776B CN 201380030809 A CN201380030809 A CN 201380030809A CN 104379776 B CN104379776 B CN 104379776B
- Authority
- CN
- China
- Prior art keywords
- steel band
- gas
- mentioned
- stove
- furnace
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 125
- 239000010959 steel Substances 0.000 title claims abstract description 125
- 238000000137 annealing Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000007747 plating Methods 0.000 title claims description 52
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims description 26
- 229910052725 zinc Inorganic materials 0.000 title claims description 26
- 239000011701 zinc Substances 0.000 title claims description 26
- 238000004519 manufacturing process Methods 0.000 title claims description 23
- 239000007789 gas Substances 0.000 claims abstract description 74
- 238000002791 soaking Methods 0.000 claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000001301 oxygen Substances 0.000 claims abstract description 8
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 8
- 230000007547 defect Effects 0.000 abstract description 4
- 238000006722 reduction reaction Methods 0.000 description 17
- 238000011144 upstream manufacturing Methods 0.000 description 13
- 238000005275 alloying Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000004927 fusion Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000009713 electroplating Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000009533 lab test Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 210000004894 snout Anatomy 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
- C21D8/0473—Final recrystallisation annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/76—Adjusting the composition of the atmosphere
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D6/00—Heat treatment of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/562—Details
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C23—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
- C23C—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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/003—Apparatus
- C23C2/0035—Means for continuously moving substrate through, into or out of the bath
-
- C—CHEMISTRY; METALLURGY
- C23—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
- C23C—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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/003—Apparatus
- C23C2/0038—Apparatus characterised by the pre-treatment chambers located immediately upstream of the bath or occurring locally before the dipping process
-
- C—CHEMISTRY; METALLURGY
- C23—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
- C23C—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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/003—Apparatus
- C23C2/0038—Apparatus characterised by the pre-treatment chambers located immediately upstream of the bath or occurring locally before the dipping process
- C23C2/004—Snouts
-
- C—CHEMISTRY; METALLURGY
- C23—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
- C23C—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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C23—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
- C23C—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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
- C23C2/0222—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating in a reactive atmosphere, e.g. oxidising or reducing atmosphere
-
- C—CHEMISTRY; METALLURGY
- C23—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
- C23C—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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
- C23C2/0224—Two or more thermal pretreatments
-
- C—CHEMISTRY; METALLURGY
- C23—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
- C23C—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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—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
- C23C—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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
- C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
- C23C2/18—Removing excess of molten coatings from elongated material
- C23C2/20—Strips; Plates
-
- C—CHEMISTRY; METALLURGY
- C23—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
- C23C—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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-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
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
本发明提供钢带的连续退火方法,能以低成本实现适于含有Si、Mn等易氧化性元素的钢带退火的低露点退火氛围,该退火氛围拾取缺陷产生少、炉壁损伤问题少,能防止钢中Si、Mn等易氧化性元素富集在钢带表面而形成易氧化性元素的氧化物。在利用立式退火炉对钢带退火时,进行控制使得通过隔壁的位置处的钢带温度为550~700℃,该立式退火炉构成为:具备沿上下方向输送钢带的加热带和均热带,所述隔壁设置在上述加热带内并分离炉内的氛围,从炉外向炉内供给氛围气体,从钢带导入部排出气体,并抽吸炉内气体的一部分向炉外的具有脱氧和除湿装置的精炼机排出而除去气体中的氧气和水分,从而使气体的露点降低,再使降低露点后的气体回到炉内。
Description
技术领域
本发明涉及钢带的连续退火方法、钢带的连续退火装置、熔融镀锌钢带的制造方法及熔融镀锌钢带的制造装置。
背景技术
近年来,在汽车、家电、建材等领域中,对于能够有助于结构体的轻量化等的高强度钢(高张力钢:high-tensilesteel)的需求不断提高。在这种高张力钢的技术中,若向钢中添加Si则存在能够制造扩孔性良好的高强度钢带的可能性,另外,若含有Si、Al则显示出能够提供容易形成残留γ的延展性良好的钢带的可能性。
然而,若在高强度冷轧钢带中含有Si、Mn等易氧化性元素,则在退火中这些易氧化性元素富集在钢带表面而形成Si、Mn等的氧化物,从而存在导致外观不良、磷酸盐处理等化成处理性不良的问题。
熔融镀锌钢带的情况下,若钢带含有Si、Mn等易氧化性元素,则在退火中这些易氧化性元素富集在钢带表面而形成Si、Mn等的氧化物,存在阻碍镀敷性而产生不镀敷缺陷的问题。并且,存在在镀敷后的合金化处理时合金化速度降低的问题。其中,若Si在钢带表面形成SiO2的氧化膜,则钢带与熔融镀敷金属的润湿性显著降低,另外,在合金化处理时SiO2氧化膜成为基铁与镀敷金属之间的扩散的障碍。因此,特别容易产生Si阻碍镀敷性、合金化处理性的问题。
作为避免该问题的方法,能够想到控制退火氛围中的氧势的方法。
作为提高氧势的方法,例如专利文献1中公开了将从加热带后段到均热带为止的露点控制为-30℃以上的高露点的方法。该手法能够期待一定程度的效果,另外,存在向高露点的控制在工业上也容易实现的优点。但是,该手法存在如下缺点:不能够简单地进行不希望在高露点下进行操作的钢种(例如Ti系-IF钢)的制造。这是由于为了使一旦成为高露点的退火氛围变为低露点要花费非常长的时间。另外,该手法由于使炉内氛围为氧化性,因此若控制失误则存在氧化物附着于炉内辊而产生拾取(pickup)缺陷的问题、炉壁损伤的问题。
作为其它的手法,能够想到形成低氧势的手法。然而,Si、Mn等非常容易氧化,因此在配置在CGL(连续熔融镀锌生产线)·CAL(连续退火生产线)中的那样的大型连续退火炉中,很难稳定地获得抑制Si、Mn等的氧化的作用优异的-40℃以下的低露点的氛围。
例如专利文献2、专利文献3中公开了有效地获得低露点的退火氛围的技术。这些技术是针对单道次立式炉这种相对小规模的炉的技术,并未考虑在CGL·CAL那样的多道次立式退火炉中对含有Si、Mn等的易氧化性元素的钢带进行退火的情况。
专利文献1:PCT国际公开WO2007/043273号公报
专利文献2:日本国专利第2567140号公报
专利文献3:日本国专利第2567130号公报
发明内容
本发明的课题在于提供钢带的连续退火方法以及连续退火装置,能够以低成本实现低露点的退火氛围,该低露点的退火氛围拾取缺陷的产生少、炉壁损伤的问题少,防止钢中的Si、Mn等易氧化性元素富集在钢带表面而形成Si、Mn等易氧化性元素的氧化物,适于含有Si、Mn等易氧化性元素的钢带的退火。
另外,本发明的课题在于提供利用上述连续退火方法对钢带进行退火后进行熔融镀锌的熔融镀锌钢带的制造方法。另外,本发明的课题在于提供具备上述连续退火装置的熔融镀锌钢带的制造装置。
为了高效地使大型的退火炉低露点化,需要确定水分产生源。发明者深入研究后发现,非常重要的是钢带的自然氧化膜被还原时产生的水分的对策。发明者进一步研究后发现下述i)、ii),并完成以下的发明。
i)还原发生的温度域是500℃~600℃。
ii)Si、Mn等易氧化元素氧化、作为不镀敷等镀敷性阻碍主要原因的表面富集(不镀敷等镀敷性阻害主要原因)发生的温度域是700℃以上。
解决上述课题的本发明的方法如下。
(1)一种钢带的连续退火方法,其特征在于,在利用立式退火炉对钢带进行退火时,进行控制使得通过隔壁的位置处的钢带的温度为550~700℃,其中,该立式退火炉构成为:从入炉侧依次具备沿上下方向输送钢带的加热带和均热带,所述隔壁设置在上述加热带内并对炉内的氛围进行分离,从炉外向上述炉内供给氛围气体,从上述入炉侧的钢带导入部排出炉内气体,并且抽吸上述炉内气体的一部分向设置于炉外的具有脱氧装置和除湿装置的精炼机排出而除去气体中的氧气和水分,从而使气体的露点降低,再使上述降低露点后的气体回到上述炉内。
(2)其中,立式退火炉构成为:从入炉侧依次具备沿上下方向输送钢带的加热带和均热带,在上述加热带~上述均热带内设置有将炉内的氛围分离的隔壁,从炉外向炉内供给氛围气体,从上述入炉侧的钢带导入部排出炉内气体,并且抽吸上述炉内气体的一部分向设置于炉外的具有脱氧装置和除湿装置的精炼机排出而除去气体中的氧气和水分,从而使露点降低,再使上述降低露点后的气体回到上述炉内,所述钢带的连续退火装置的特征在于,以使通过上述隔壁位置处的钢带的温度为550~700℃的方式配置隔壁。
(3)一种熔融镀锌钢带的制造方法,其特征在于,利用上述技术方案(1)所述的连续退火方法对钢带进行退火后,进行熔融镀锌。
(4)一种熔融镀锌钢带的制造装置,其特征在于,在上述技术方案(2)所述的连续退火装置的下游设置有熔融镀锌装置。
根据本发明,通过利用隔壁将还原反应进行温度域的氛围与表面富集进行温度域的氛围分离,能够以低成本实现低露点的退火氛围,该低露点的退火氛围适于含有Si、Mn等易氧化性元素的钢带的退火。根据本发明,能够改善对含有Si、Mn等易氧化性元素的钢带进行熔融镀锌后的镀敷性。
附图说明
图1表示具备本发明的实施所使用的立式退火炉的钢带的连续熔融镀锌生产线的一个结构例。
图2表示退火炉的加热带~均热带的向精炼机抽吸气体的抽吸口和从精炼机吐出气体的吐出口的配置例。
具体实施方式
为了高效降低在钢带的连续退火生产线、钢带的连续熔融镀锌生产线配置的退火炉的露点,知道使露点升高的水的产生源变得非常重要。发明者通过进行实机退火炉内的多点连续露点测定,发现了在钢带温度为500℃至600℃的温度域中存在水的产生源。基于实验室实验,发现氧化膜的还原最容易在该温度域进行,因此发明者想到在该区域内露点高的理由是钢带的自然氧化膜的还原带来很大影响。
另一方面,钢带温度越高,给镀敷性带来很大影响的易氧化性元素的表面富集量变得越多,但该温度影响度很大程度根据钢带内所含的元素种类不同而不同。针对作为在高张力钢中使用的元素的代表例而公知的Mn、Si来说,由实验室实验可知,Mn在800℃以上的钢带温度区域进行表面富集,Si在700℃以上的钢带温度区域进行表面富集。
如上所述,基于还原的水产生在500~600℃的范围内发生,对于Si系在700℃以上产生表面富集的问题,对于Mn系在800℃以上产生表面富集的问题。根据上述事实,发明者想到从确保镀敷性的观点来说将还原反应进行温度域的氛围与表面富集进行温度域的氛围分离的方法是有效的。即,若设置分离氛围的隔壁,且使该隔壁位置的钢带温度为550~700℃,则能够将由自然氧化膜的还原产生的水分的大部分限制在不影响镀敷性的隔壁上游侧的低温域。因此,若设置分离氛围的隔壁,且使该隔壁位置的钢带温度为550~700℃,则能够以低成本将在进行易氧化性元素的表面富集的隔壁下游的高温域的露点保持为较低。
若分离氛围的隔壁位置的钢带温度超过700℃,则在隔壁上游(分离带以前)还原反应就已经结束,另外,表面富集的进行对镀敷性带来恶劣影响,因此无法获得良好的镀敷品质。
另一方面,若分离氛围的隔壁位置的钢带温度不到550℃,则还原在隔壁上游的低温侧没有结束,在隔壁下游的高温侧仍在进行,因此高温侧氛围的低露点化变得特别重要。
氛围的分离手法分为物理性地分离的方法和利用气封等进行非物理性地分离的手法两种。然而,新设计炉的情况优选物理性地分离的方法。作为具体的物理性分离手法,能够想到利用耐热砖等构成的壁(隔壁)。在该手法中,需要设置供钢带通过的开口部,因此无法将氛围完全地分离。然而在该手法中,通过将隔壁的开口部配置在距炉气的排出口尽可能远处,能够提高隔壁上游与下游的氛围的分离性。另外,在炉外设置有具有脱氧装置和除湿装置的精炼机的退火炉中,通过将隔壁的配置、向精炼机的气体抽吸、从精炼机的气体吐出组合,能够以低成本降低退火氛围的露点。
图1表示具备本发明的实施所使用的立式退火炉的钢带的连续熔融镀锌生产线的一个结构例。图2表示退火炉的加热带~均热带的向精炼机抽吸气体的抽吸口和从精炼机吐出气体的吐出口的配置例。以下使用图1、图2对本发明进行说明。
图1的连续熔融镀锌生产线在电镀槽7的上游具备多道次的立式退火炉2。通常,退火炉2从炉的上游向下游依次配置有加热带3、均热带4、冷却带5。在加热带3~均热带4内配置有分离氛围的隔壁11。隔壁11配置为大致铅垂,利用隔壁11将隔壁上游侧的氛围与下游侧的氛围分离。在隔壁11设置有使钢带1通过的开口部12。优选,隔壁11的开口部12配置在距供炉内气体排出的入炉侧的开口部13尽可能远的位置。在图1的退火炉中,隔壁11的开口部12配置在距入炉侧的开口部13离开最远距离的隔壁上部(炉上部侧)。另外,根据需要也能够使用气封等公知的非接触手法进一步提高隔壁的开口部12的氛围的分离性。
14是测定隔壁的开口部位置的钢带板温度的温度计。
退火炉2与电镀槽7经由炉鼻(snout)6相连接,从加热带3到炉鼻6为止的炉内保持在还原性氛围气体或者非氧化性氛围中,加热带3和均热带4使用辐射管(RT)作为加热装置对钢带1进行间接加热。
还原性氛围气体通常使用H2-N2气体,被导入从加热带3到炉鼻6为止的炉内的适当位置。导入炉内后的气体除了炉体泄漏等不可避免的部分以外被从炉的进入侧排出,炉内气体的流动与钢带行进方向成相反方向,从炉的下游朝向上游,被从入炉侧的开口部13向炉外排出。
为了降低退火炉的氛围气体的露点,在炉外配置具有脱氧装置和除湿装置的精炼机15,构成为抽吸炉内的氛围气体的一部分向精炼机15排出而除去气体中的氧气和水分从而降低露点,并将降低露点后的气体向炉内吐出。精炼机可以使用公知的装置。
向精炼机抽吸气体的抽吸口、从精炼机吐出气体的吐出口配置于在加热带~均热带内配置的隔壁11的上游侧、下游侧的各自的适当位置。在图2中,对向精炼机抽吸气体的抽吸口而言,在加热带上变换炉高方向的位置而配置有三处,在均热带上变换炉长方向的位置、炉高方向的位置而配置有六处。炉长方向是图2的左右方向。从精炼机吐出气体的吐出口配置在各抽吸口的下方0.5m处的位置。对各抽吸口的气体抽吸量、各吐出口的气体吐出量而言,能够单独地进行流量调整。
利用上述退火炉对钢带进行退火时,非常重要的是通过隔壁的位置处的钢带温度的控制。如上所述,还原进行温度是500~600℃,Si系的表面富集进行温度是700℃以上,Mn系的表面富集进行温度是800℃以上。由于还原进行温度域与表面富集进行温度域接近,因此,若温度控制不适当,则不仅无法显出本发明的效果,有时甚至还会得到相反的效果。
在本发明中,进行控制使得通过隔壁的位置处的钢带温度变为550~700℃的范围内。若钢带温度不到550℃,则钢带以还原不充分的状态被向隔壁下游的高温侧输送,因此,还原引起的气体在高温侧大量产生,高温侧的露点变高,从而阻碍镀敷性。相反,若钢带温度超过700℃,则在露点高的隔壁上游的低温侧进行表面富集而阻碍镀敷性。进一步优选的通过隔壁的位置处的钢带温度是还原基本结束而表面富集的影响几乎能够忽略的600℃~700℃。对于在通过隔壁的位置处的钢带温度而言,根据生产线速度、板厚等条件,能够通过调整RT的燃烧量等的加热能力来进行控制。
另外,在生产线速度、板厚等条件的变更少等情况下,也可以预先确定通过隔壁的位置处的钢带温度为550~700℃的退火炉内的位置并将隔壁配置于此。
若通过隔壁的位置处的钢带温度在550~700℃的范围内,则在钢带的Si含有量是0.1质量%以下的情况下,即便不使用精炼机也能够使含有Si、Mn的钢带的镀敷性提高。另一方面,若钢带的Si含有量超过0.1质量%,则不使用精炼机来使炉内气体的露点降低就无法使镀敷性良好。向精炼机的气体的排出可以在隔壁的上游的低温侧、下游侧的高温侧中的任意一侧进行。然而,在精炼机气体吐出口处于隔壁下游的情况下,向精炼机的气体的排出在隔壁下游且越尽量远离该吐出位置越低露点化,因此效率优良。不对从精炼机吐出气体的吐出位置进行限定。然而,从有效活用低露点的吐出气体的观点来说,优选,在尽量远离向精炼机排出气体的气体排出口的位置吐出来自精炼机的气体。
超过700℃还原结束,因此仅在隔壁上游放出水,但为表面富集影响也大的温度域,进行隔壁位置的温度管理的意义不大。
通过隔壁后的钢带在均热带被高温保持。在均热带的钢带温度只要根据所要求的材质进行适当设定即可,例如是730℃~910℃程度。
对于利用加热带3和均热带4实施规定的退火后的钢带,利用冷却带5进行冷却,经由炉鼻6浸渍在电镀槽7中进行熔融镀锌,利用吹扫喷嘴8将镀敷附着量调整至规定附着量而成为熔融镀锌钢带。或者利用吹扫喷嘴8进行附着量调整后,进一步使用加热装置9进行镀锌层的合金化处理。
对利用本发明的方法退火后的钢带而言,Si、Mn等易氧化性元素的表面富集被抑制,从而进行熔融镀锌时能够提高镀敷性。本发明的方法的效果已在含有Si:0.4~3.0质量%以及/或者含有Mn:1~3质量%的钢带中进行了确认。
在上述的退火炉中,钢带从炉的下部被导入。然而,钢带也可以从炉的上部侧被导入。在上述的退火炉中,钢带在隔壁的上方移动。然而,钢带也可以在隔壁的下方通过。在上述的退火炉中,均热带与冷却带在炉的上部连通。然而,均热带与冷却带也可以在炉的下部连通。上述的退火炉在加热带的上游没有配置预热炉。然而,退火炉也可以具备预热炉。
本发明的退火方法也能够适用于钢带的连续退火生产线(CAL)的退火方法、退火装置。
实施例
在具备ART型(全辐射型)的退火炉的CGL中,使炉内氛围条件等变化并进行露点测定,对钢带进行熔融镀锌来制造熔融镀锌钢带,从而对镀敷性进行评价。其中,对ART型的退火炉而言,如图1、图2所示那样,在加热带~均热带内配置了物理性地将炉内的氛围分离的隔壁,在炉外配置了具备除湿装置和脱氧装置的精炼机。
加热带~均热带的炉长(图2的左右方向的炉长)是16m、加热带的炉长是6m、均热带的炉长是10m,隔壁位置处于距入炉侧壁6m的位置。对于来自炉外的氛围气体供给部位而言,均热带中距驱动(drive)侧的炉床高度为1m、10m的位置的炉长方向分别设为九处,共计为十八处。供给的氛围气体的露点是-60~-70℃,且氛围气体是H2-N2气体(H2浓度是10vol%)。
向精炼机抽吸气体的抽吸口以及从精炼机吐出气体的吐出口如图2所记载那样。图2的氛围气体的抽吸口A~I的坐标(距入炉侧壁的距离,距炉底的距离)是A=(4m,2m)、B=(4m,11m)、C=(4m,20m)、D=(8m,2m)、E=(8m,11m)、F=(8m,20m)、G=(12m,2m)、H=(12m,11m)、I=(12m,20m)。吐出口A~I在上述抽吸口A~I的下方0.5m处(从单侧的炉壁进行抽吸/吐出)。此外,抽吸口是φ200mm、吐出口是φ50mm。精炼机的除湿装置使用合成沸石,脱氧装置使用钯催化剂。
使用板厚为0.8~1.2mm、板宽为950~1000mm的范围的冷轧钢带(钢种是表1的A~D这4种),按照退火温度是820℃、送板速度是100~120mpm的条件尽可能地进行条件统一的试验。
表1
表1
(质量%)
钢种 | C | Si | Mn | S | Al |
A | 0.12 | 0.1 | 2.3 | 0.003 | 0.03 |
B | 0.12 | 0.5 | 1.7 | 0.003 | 0.03 |
C | 0.12 | 1.3 | 2.0 | 0.003 | 0.03 |
D | 0.12 | 1.9 | 2.8 | 0.003 | 0.03 |
以未使用精炼机时的氛围的露点(初始露点)为基准(-34℃~-36℃),调查使用精炼机1小时后的露点。另外,露点在与气体抽吸口相同位置进行测定(然而与气体抽吸口相反的炉壁侧)。
镀敷性(镀敷品质)的评价基准如下。
◎:合格(表面干净且外板标准的品质);○:合格(内板标准的品质);
△:有微小缺陷(镀敷不良等);×:有重大缺陷(镀敷严重不良)、不合格
表2、表3中示出结果。
表2
表3
表3
本发明例与比较例相比可知,低露点化且镀敷性得到改善。
根据本发明,通过利用隔壁将还原反应进行温度域的氛围与表面富集进行温度域的氛围分离,能够以低成本实现低露点的退火氛围,该低露点的退火氛围适于含有Si、Mn等易氧化性元素的钢带的退火。根据本发明,能够改善对含有Si、Mn等易氧化性元素的钢带进行熔融镀锌时的镀敷性。
附图标记
1...钢带;2...退火炉;3...加热带;4...均热带;5...冷却带;6...炉鼻;7...电镀槽;8...吹扫喷嘴;9...加热装置;11...隔壁;12...隔壁的开口部;13...入炉侧的开口部;14...温度计;15...精炼机。
Claims (8)
1.一种钢带的连续退火方法,其特征在于,
在利用立式退火炉对钢带进行退火时,进行控制使得通过隔壁的位置处的钢带的温度为550~700℃,
其中,该立式退火炉构成为:从入炉侧依次具备沿上下方向输送钢带的加热带和均热带,所述隔壁设置在上述加热带内并对炉内的氛围进行分离,从炉外向上述炉内供给氛围气体,从上述入炉侧的钢带导入部排出炉内气体,并且抽吸上述炉内气体的一部分向设置于炉外的具有脱氧装置和除湿装置的精炼机排出而除去气体中的氧气和水分,从而使气体的露点降低,再使降低露点后的气体回到上述炉内。
2.根据权利要求1所述的钢带的连续退火方法,其特征在于,
进行控制使得上述均热带处的上述钢带的温度为730~910℃。
3.根据权利要求1或2所述的钢带的连续退火方法,其特征在于,
上述退火炉构成为将上述氛围气体向上述均热带供给,并使上述降低露点后的气体回到上述均热带。
4.一种熔融镀锌钢带的制造方法,其特征在于,
在利用权利要求1~3任一项所述的连续退火方法对钢带进行退火后,进行熔融镀锌。
5.一种钢带的连续退火装置,
其中,立式退火炉构成为:从入炉侧依次具备沿上下方向输送钢带的加热带和均热带,在上述加热带~上述均热带内设置有将炉内的氛围分离的隔壁,从炉外向炉内供给氛围气体,从上述入炉侧的钢带导入部排出炉内气体,并且抽吸上述炉内气体的一部分向设置于炉外的具有脱氧装置和除湿装置的精炼机排出而除去气体中的氧气和水分,从而使露点降低,再使降低露点后的气体回到上述炉内,
所述钢带的连续退火装置的特征在于,
以使通过上述隔壁位置处的钢带的温度为550~700℃的方式配置隔壁。
6.根据权利要求5所述的钢带的连续退火装置,其特征在于,
构成为上述均热带处的上述钢带的温度为730~910℃。
7.根据权利要求5或6所述的钢带的连续退火装置,其特征在于,
构成为将上述氛围气体向上述均热带供给,并使上述降低露点后的气体回到上述均热带。
8.一种熔融镀锌钢带的制造装置,其特征在于,
在权利要求5~7任一项所述的连续退火装置的下游设置有熔融镀锌装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012-133615 | 2012-06-13 | ||
JP2012133615 | 2012-06-13 | ||
PCT/JP2013/003629 WO2013187039A1 (ja) | 2012-06-13 | 2013-06-10 | 鋼帯の連続焼鈍方法、鋼帯の連続焼鈍装置、溶融亜鉛めっき鋼帯の製造方法及び溶融亜鉛めっき鋼帯の製造装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104379776A CN104379776A (zh) | 2015-02-25 |
CN104379776B true CN104379776B (zh) | 2016-07-06 |
Family
ID=49757885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201380030809.2A Active CN104379776B (zh) | 2012-06-13 | 2013-06-10 | 钢带的连续退火方法、钢带的连续退火装置、熔融镀锌钢带的制造方法以及熔融镀锌钢带的制造装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10590509B2 (zh) |
EP (1) | EP2862946B1 (zh) |
JP (1) | JP5655955B2 (zh) |
KR (1) | KR101642632B1 (zh) |
CN (1) | CN104379776B (zh) |
WO (1) | WO2013187039A1 (zh) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3067434B1 (en) | 2013-11-07 | 2018-04-18 | JFE Steel Corporation | Continuous annealing equipment and continuous annealing method |
FR3014447B1 (fr) * | 2013-12-05 | 2016-02-05 | Fives Stein | Procede et installation de traitement thermique en continu d'une bande d'acier |
JP6128068B2 (ja) * | 2014-07-07 | 2017-05-17 | 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 |
JP6131919B2 (ja) * | 2014-07-07 | 2017-05-24 | 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 |
JP6020605B2 (ja) * | 2015-01-08 | 2016-11-02 | 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 |
WO2017182833A1 (en) * | 2016-04-19 | 2017-10-26 | Arcelormittal | Method for producing a metallic coated steel sheet |
JP7073162B2 (ja) * | 2018-03-29 | 2022-05-23 | 株式会社神戸製鋼所 | 竪型連続焼鈍炉及び焼鈍方法 |
CN109988893A (zh) * | 2019-04-26 | 2019-07-09 | 宝钢湛江钢铁有限公司 | 一种减少纳米氧化物生成的连退工艺 |
AT524148B1 (de) * | 2020-08-20 | 2022-08-15 | Nntech Gmbh | Verfahren zur Herstellung eines Elektrobands |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101466860A (zh) * | 2006-03-29 | 2009-06-24 | 冶金研究Asbl中心 | 以热镀锌为目的的高强度钢带的连续退火和制备的方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3447745A (en) * | 1966-07-25 | 1969-06-03 | Electric Furnace Co | Furnace heating control |
JP2567130B2 (ja) | 1990-05-07 | 1996-12-25 | 日本冶金工業株式会社 | 光輝焼鈍炉 |
JP2567140B2 (ja) | 1990-09-04 | 1996-12-25 | 日本冶金工業株式会社 | 光輝焼鈍炉 |
JPH07116526B2 (ja) * | 1991-04-18 | 1995-12-13 | 川崎製鉄株式会社 | 連続熱処理炉 |
JP2567130Y2 (ja) | 1992-03-16 | 1998-03-30 | 矢崎総業株式会社 | ブスバー固定構造 |
JP2567140Y2 (ja) | 1992-09-17 | 1998-03-30 | 弘 丹羽 | フィッシングゲームマシン |
JPH08109417A (ja) * | 1994-10-12 | 1996-04-30 | Nippon Steel Corp | 連続焼鈍炉の雰囲気ガス置換法 |
JP3176843B2 (ja) * | 1996-06-05 | 2001-06-18 | 川崎製鉄株式会社 | 溶融亜鉛めっき鋼板の製造方法および製造設備 |
JPH09324210A (ja) * | 1996-06-07 | 1997-12-16 | Kawasaki Steel Corp | 溶融亜鉛めっき鋼板の製造方法および製造設備 |
JPH10176225A (ja) | 1996-12-13 | 1998-06-30 | Daido Steel Co Ltd | 金属ストリップの連続焼鈍炉 |
JP2000290762A (ja) * | 1999-04-07 | 2000-10-17 | Kawasaki Steel Corp | 溶融めっき鋼板の製造方法 |
JP2003129125A (ja) | 2001-10-15 | 2003-05-08 | Daido Steel Co Ltd | ストリップ連続熱処理炉 |
US6635313B2 (en) * | 2001-11-15 | 2003-10-21 | Isg Technologies, Inc. | Method for coating a steel alloy |
BRPI0617390B1 (pt) * | 2005-10-14 | 2017-12-05 | Nippon Steel & Sumitomo Metal Corporation | METHOD OF CONTINUOUS CUTTING AND COATING BY HOT IMMERSION AND CONTINUOUS CUTTING AND COATING SYSTEM BY HOT IMMERSION OF STEEL PLATES CONTAINING Si |
JP4770428B2 (ja) * | 2005-11-29 | 2011-09-14 | Jfeスチール株式会社 | 高強度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の製造設備 |
WO2009151203A1 (ko) | 2008-06-13 | 2009-12-17 | 주식회사 엘지화학 | 발열체 및 이의 제조방법 |
JP5712542B2 (ja) * | 2010-09-29 | 2015-05-07 | Jfeスチール株式会社 | 高強度鋼板およびその製造方法 |
JP5071551B2 (ja) | 2010-12-17 | 2012-11-14 | Jfeスチール株式会社 | 鋼帯の連続焼鈍方法、溶融亜鉛めっき方法 |
-
2013
- 2013-06-10 EP EP13803871.6A patent/EP2862946B1/en active Active
- 2013-06-10 WO PCT/JP2013/003629 patent/WO2013187039A1/ja active Application Filing
- 2013-06-10 US US14/405,071 patent/US10590509B2/en active Active
- 2013-06-10 JP JP2013543074A patent/JP5655955B2/ja active Active
- 2013-06-10 CN CN201380030809.2A patent/CN104379776B/zh active Active
- 2013-06-10 KR KR1020147035255A patent/KR101642632B1/ko active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101466860A (zh) * | 2006-03-29 | 2009-06-24 | 冶金研究Asbl中心 | 以热镀锌为目的的高强度钢带的连续退火和制备的方法 |
Also Published As
Publication number | Publication date |
---|---|
JP5655955B2 (ja) | 2015-01-21 |
JPWO2013187039A1 (ja) | 2016-02-04 |
CN104379776A (zh) | 2015-02-25 |
EP2862946A4 (en) | 2015-06-03 |
KR101642632B1 (ko) | 2016-07-25 |
EP2862946B1 (en) | 2019-03-06 |
US20150167113A1 (en) | 2015-06-18 |
EP2862946A1 (en) | 2015-04-22 |
KR20150013807A (ko) | 2015-02-05 |
US10590509B2 (en) | 2020-03-17 |
WO2013187039A1 (ja) | 2013-12-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104379776B (zh) | 钢带的连续退火方法、钢带的连续退火装置、熔融镀锌钢带的制造方法以及熔融镀锌钢带的制造装置 | |
CN104053796B (zh) | 钢带的连续退火炉及连续退火方法 | |
CN110612359B (zh) | 热浸镀锌钢板的制造方法 | |
KR101340331B1 (ko) | 강대의 연속 어닐링 방법, 및, 용융 아연 도금 방법 | |
US9388484B2 (en) | Continuous annealing furnace for annealing steel strip, method for continuously annealing steel strip, continuous hot-dip galvanizing facility, and method for manufacturing hot-dip galvanized steel strip | |
CN104321447B (zh) | 钢带的连续退火炉、连续退火方法、连续热浸镀锌设备以及热浸镀锌钢带的制造方法 | |
CN104379777B (zh) | 钢带的连续退火方法及热镀锌钢带的制造方法 | |
KR102378375B1 (ko) | 용융 아연 도금 강판의 제조 방법 및 연속 용융 아연 도금 장치 | |
US10415115B2 (en) | Continuous annealing system and continuous annealing method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |