METHOD FOR PRODUCING HOT-DIP GALVANIZED STEEL SHEET
The purpose of the present invention is to provide a method for producing a hot-dip galvanized steel sheet which makes it possible to achieve high plating adhesion and a good plating appearance even when hot-dip galvanization is performed on a steel sheet containing 0.2 mass% or more of Si. When per...
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| creator | TAKAHASHI Hideyuki EHASHI Tatsuya TAKEDA Gentaro AOYAMA Mai WATANABE Maiko |
| description | The purpose of the present invention is to provide a method for producing a hot-dip galvanized steel sheet which makes it possible to achieve high plating adhesion and a good plating appearance even when hot-dip galvanization is performed on a steel sheet containing 0.2 mass% or more of Si. When performing hot-dip galvanization on a steel sheet containing 0.2 mass% or more of Si using a sequential hot-dip galvanization device comprising an annealing furnace in which a heating zone, a soaking zone, and a cooling zone are provided side by side in this order, a snout which is adjacent to the cooling zone, and hot-dip galvanization equipment, a nitrogen-hydrogen mixture gas that contains water and that satisfies formula (1) is introduced into the region downstream from the soaking zone, a gas nozzle is provided along the entire circumference of the inner wall of the snout, nitrogen or the nitrogen-hydrogen mixture gas is downwardly introduced from the gas nozzle along the inner wall, and the dew point inside the snout is controlled to -50 to -35ºC. (1): 158 |
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| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_WO2023286501A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>WO2023286501A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_WO2023286501A13</originalsourceid><addsrcrecordid>eNrjZDD2dQ3x8HdRcPMPUggI8ncJdfb0c1fw8A_RdfEMUHB39Alz9POMcnVRCA5xdfVRCPZwdQ3hYWBNS8wpTuWF0twMym6uIc4euqkF-fGpxQWJyal5qSXx4f5GBkbGRhZmpgaGjobGxKkCADCVJ-c</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>METHOD FOR PRODUCING HOT-DIP GALVANIZED STEEL SHEET</title><source>esp@cenet</source><creator>TAKAHASHI Hideyuki ; EHASHI Tatsuya ; TAKEDA Gentaro ; AOYAMA Mai ; WATANABE Maiko</creator><creatorcontrib>TAKAHASHI Hideyuki ; EHASHI Tatsuya ; TAKEDA Gentaro ; AOYAMA Mai ; WATANABE Maiko</creatorcontrib><description>The purpose of the present invention is to provide a method for producing a hot-dip galvanized steel sheet which makes it possible to achieve high plating adhesion and a good plating appearance even when hot-dip galvanization is performed on a steel sheet containing 0.2 mass% or more of Si. When performing hot-dip galvanization on a steel sheet containing 0.2 mass% or more of Si using a sequential hot-dip galvanization device comprising an annealing furnace in which a heating zone, a soaking zone, and a cooling zone are provided side by side in this order, a snout which is adjacent to the cooling zone, and hot-dip galvanization equipment, a nitrogen-hydrogen mixture gas that contains water and that satisfies formula (1) is introduced into the region downstream from the soaking zone, a gas nozzle is provided along the entire circumference of the inner wall of the snout, nitrogen or the nitrogen-hydrogen mixture gas is downwardly introduced from the gas nozzle along the inner wall, and the dew point inside the snout is controlled to -50 to -35ºC. (1): 158<M/X<178, where M is a parameter related to the water content in the humidifying gas to be introduced into the soaking zone, and X is a parameter related to effect on the surface area of a steel sheet.
La présente invention concerne un procédé de production d'une tôle d'acier galvanisée à chaud qui permet d'obtenir une adhérence de placage élevée et un bon aspect de placage même lorsqu'une galvanisation à chaud est effectuée sur une tôle d'acier contenant 0,2 % en masse ou plus de Si. Lors de la réalisation d'une galvanisation à chaud sur une tôle d'acier contenant 0,2 % en masse ou plus de Si à l'aide d'un dispositif de galvanisation à chaud séquentiel comprenant un four de recuit dans lequel une zone de chauffage, une zone de trempage, et une zone de refroidissement sont disposées côte à côte dans cet ordre, un bec qui est adjacent à la zone de refroidissement, et un équipement de galvanisation à chaud, un mélange azote-hydrogène gazeux qui contient de l'eau et qui répond à la formule (1) est introduit dans la zone en aval de la zone de trempage, une buse à gaz est disposée le long de toute la circonférence de la paroi interne du bec, l'azote ou le mélange azote-hydrogène gazeux est introduit vers le bas par la buse à gaz le long de la paroi interne, et le point de rosée à l'intérieur de la sortie est régulé à -50 à -35 °C. (1) : 158<M/X<178, M étant un paramètre lié à la teneur en eau dans le gaz d'humidification à introduire dans la zone de trempage, et X étant un paramètre lié à un effet sur la surface d'une tôle d'acier.
Ｓｉを０．２質量％以上含む鋼板に溶融亜鉛めっきを施した場合でも、めっき密着性が高く良好なめっき外観を得ることができる溶融亜鉛めっき鋼板の製造方法を提供することを目的とする。 加熱帯と、均熱帯と、冷却帯とがこの順に並置された焼鈍炉と、前記冷却帯に隣接したスナウトと、溶融亜鉛めっき設備とを有する連続溶融亜鉛めっき装置を用いてＳｉを０．２質量％以上含む鋼板に溶融亜鉛めっきを行うに際して、均熱帯の下流側の領域に下記式（１）を満たすような水分を含む窒素水素混合ガスを投入し、スナウト内に内壁全周にわたる気体ノズルを設け、前記気体ノズルから内壁に沿って下向きに窒素あるいは窒素水素混合ガスを投入して、スナウト内露点が－５０～－３５℃となるように制御する。 １５８＜Ｍ／Ｘ＜１７８ ・・（１） ただし、Ｍは、均熱帯に投入する前記加湿ガスに含まれる水分量に関するパラメータであり、Ｘは鋼板表面積への影響に関するパラメータである。</description><language>eng ; fre ; jpn</language><subject>ALLOYS ; CHEMICAL SURFACE TREATMENT ; CHEMISTRY ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING MATERIAL WITH METALLIC MATERIAL ; COATING METALLIC MATERIAL ; DIFFUSION TREATMENT OF METALLIC MATERIAL ; FERROUS OR NON-FERROUS ALLOYS ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230119&DB=EPODOC&CC=WO&NR=2023286501A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230119&DB=EPODOC&CC=WO&NR=2023286501A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TAKAHASHI Hideyuki</creatorcontrib><creatorcontrib>EHASHI Tatsuya</creatorcontrib><creatorcontrib>TAKEDA Gentaro</creatorcontrib><creatorcontrib>AOYAMA Mai</creatorcontrib><creatorcontrib>WATANABE Maiko</creatorcontrib><title>METHOD FOR PRODUCING HOT-DIP GALVANIZED STEEL SHEET</title><description>The purpose of the present invention is to provide a method for producing a hot-dip galvanized steel sheet which makes it possible to achieve high plating adhesion and a good plating appearance even when hot-dip galvanization is performed on a steel sheet containing 0.2 mass% or more of Si. When performing hot-dip galvanization on a steel sheet containing 0.2 mass% or more of Si using a sequential hot-dip galvanization device comprising an annealing furnace in which a heating zone, a soaking zone, and a cooling zone are provided side by side in this order, a snout which is adjacent to the cooling zone, and hot-dip galvanization equipment, a nitrogen-hydrogen mixture gas that contains water and that satisfies formula (1) is introduced into the region downstream from the soaking zone, a gas nozzle is provided along the entire circumference of the inner wall of the snout, nitrogen or the nitrogen-hydrogen mixture gas is downwardly introduced from the gas nozzle along the inner wall, and the dew point inside the snout is controlled to -50 to -35ºC. (1): 158<M/X<178, where M is a parameter related to the water content in the humidifying gas to be introduced into the soaking zone, and X is a parameter related to effect on the surface area of a steel sheet.
La présente invention concerne un procédé de production d'une tôle d'acier galvanisée à chaud qui permet d'obtenir une adhérence de placage élevée et un bon aspect de placage même lorsqu'une galvanisation à chaud est effectuée sur une tôle d'acier contenant 0,2 % en masse ou plus de Si. Lors de la réalisation d'une galvanisation à chaud sur une tôle d'acier contenant 0,2 % en masse ou plus de Si à l'aide d'un dispositif de galvanisation à chaud séquentiel comprenant un four de recuit dans lequel une zone de chauffage, une zone de trempage, et une zone de refroidissement sont disposées côte à côte dans cet ordre, un bec qui est adjacent à la zone de refroidissement, et un équipement de galvanisation à chaud, un mélange azote-hydrogène gazeux qui contient de l'eau et qui répond à la formule (1) est introduit dans la zone en aval de la zone de trempage, une buse à gaz est disposée le long de toute la circonférence de la paroi interne du bec, l'azote ou le mélange azote-hydrogène gazeux est introduit vers le bas par la buse à gaz le long de la paroi interne, et le point de rosée à l'intérieur de la sortie est régulé à -50 à -35 °C. (1) : 158<M/X<178, M étant un paramètre lié à la teneur en eau dans le gaz d'humidification à introduire dans la zone de trempage, et X étant un paramètre lié à un effet sur la surface d'une tôle d'acier.
Ｓｉを０．２質量％以上含む鋼板に溶融亜鉛めっきを施した場合でも、めっき密着性が高く良好なめっき外観を得ることができる溶融亜鉛めっき鋼板の製造方法を提供することを目的とする。 加熱帯と、均熱帯と、冷却帯とがこの順に並置された焼鈍炉と、前記冷却帯に隣接したスナウトと、溶融亜鉛めっき設備とを有する連続溶融亜鉛めっき装置を用いてＳｉを０．２質量％以上含む鋼板に溶融亜鉛めっきを行うに際して、均熱帯の下流側の領域に下記式（１）を満たすような水分を含む窒素水素混合ガスを投入し、スナウト内に内壁全周にわたる気体ノズルを設け、前記気体ノズルから内壁に沿って下向きに窒素あるいは窒素水素混合ガスを投入して、スナウト内露点が－５０～－３５℃となるように制御する。 １５８＜Ｍ／Ｘ＜１７８ ・・（１） ただし、Ｍは、均熱帯に投入する前記加湿ガスに含まれる水分量に関するパラメータであり、Ｘは鋼板表面積への影響に関するパラメータである。</description><subject>ALLOYS</subject><subject>CHEMICAL SURFACE TREATMENT</subject><subject>CHEMISTRY</subject><subject>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</subject><subject>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</subject><subject>COATING MATERIAL WITH METALLIC MATERIAL</subject><subject>COATING METALLIC MATERIAL</subject><subject>DIFFUSION TREATMENT OF METALLIC MATERIAL</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</subject><subject>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</subject><subject>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDD2dQ3x8HdRcPMPUggI8ncJdfb0c1fw8A_RdfEMUHB39Alz9POMcnVRCA5xdfVRCPZwdQ3hYWBNS8wpTuWF0twMym6uIc4euqkF-fGpxQWJyal5qSXx4f5GBkbGRhZmpgaGjobGxKkCADCVJ-c</recordid><startdate>20230119</startdate><enddate>20230119</enddate><creator>TAKAHASHI Hideyuki</creator><creator>EHASHI Tatsuya</creator><creator>TAKEDA Gentaro</creator><creator>AOYAMA Mai</creator><creator>WATANABE Maiko</creator><scope>EVB</scope></search><sort><creationdate>20230119</creationdate><title>METHOD FOR PRODUCING HOT-DIP GALVANIZED STEEL SHEET</title><author>TAKAHASHI Hideyuki ; EHASHI Tatsuya ; TAKEDA Gentaro ; AOYAMA Mai ; WATANABE Maiko</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO2023286501A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; jpn</language><creationdate>2023</creationdate><topic>ALLOYS</topic><topic>CHEMICAL SURFACE TREATMENT</topic><topic>CHEMISTRY</topic><topic>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</topic><topic>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</topic><topic>COATING MATERIAL WITH METALLIC MATERIAL</topic><topic>COATING METALLIC MATERIAL</topic><topic>DIFFUSION TREATMENT OF METALLIC MATERIAL</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</topic><topic>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</topic><topic>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>TAKAHASHI Hideyuki</creatorcontrib><creatorcontrib>EHASHI Tatsuya</creatorcontrib><creatorcontrib>TAKEDA Gentaro</creatorcontrib><creatorcontrib>AOYAMA Mai</creatorcontrib><creatorcontrib>WATANABE Maiko</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TAKAHASHI Hideyuki</au><au>EHASHI Tatsuya</au><au>TAKEDA Gentaro</au><au>AOYAMA Mai</au><au>WATANABE Maiko</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR PRODUCING HOT-DIP GALVANIZED STEEL SHEET</title><date>2023-01-19</date><risdate>2023</risdate><abstract>The purpose of the present invention is to provide a method for producing a hot-dip galvanized steel sheet which makes it possible to achieve high plating adhesion and a good plating appearance even when hot-dip galvanization is performed on a steel sheet containing 0.2 mass% or more of Si. When performing hot-dip galvanization on a steel sheet containing 0.2 mass% or more of Si using a sequential hot-dip galvanization device comprising an annealing furnace in which a heating zone, a soaking zone, and a cooling zone are provided side by side in this order, a snout which is adjacent to the cooling zone, and hot-dip galvanization equipment, a nitrogen-hydrogen mixture gas that contains water and that satisfies formula (1) is introduced into the region downstream from the soaking zone, a gas nozzle is provided along the entire circumference of the inner wall of the snout, nitrogen or the nitrogen-hydrogen mixture gas is downwardly introduced from the gas nozzle along the inner wall, and the dew point inside the snout is controlled to -50 to -35ºC. (1): 158<M/X<178, where M is a parameter related to the water content in the humidifying gas to be introduced into the soaking zone, and X is a parameter related to effect on the surface area of a steel sheet.
La présente invention concerne un procédé de production d'une tôle d'acier galvanisée à chaud qui permet d'obtenir une adhérence de placage élevée et un bon aspect de placage même lorsqu'une galvanisation à chaud est effectuée sur une tôle d'acier contenant 0,2 % en masse ou plus de Si. Lors de la réalisation d'une galvanisation à chaud sur une tôle d'acier contenant 0,2 % en masse ou plus de Si à l'aide d'un dispositif de galvanisation à chaud séquentiel comprenant un four de recuit dans lequel une zone de chauffage, une zone de trempage, et une zone de refroidissement sont disposées côte à côte dans cet ordre, un bec qui est adjacent à la zone de refroidissement, et un équipement de galvanisation à chaud, un mélange azote-hydrogène gazeux qui contient de l'eau et qui répond à la formule (1) est introduit dans la zone en aval de la zone de trempage, une buse à gaz est disposée le long de toute la circonférence de la paroi interne du bec, l'azote ou le mélange azote-hydrogène gazeux est introduit vers le bas par la buse à gaz le long de la paroi interne, et le point de rosée à l'intérieur de la sortie est régulé à -50 à -35 °C. (1) : 158<M/X<178, M étant un paramètre lié à la teneur en eau dans le gaz d'humidification à introduire dans la zone de trempage, et X étant un paramètre lié à un effet sur la surface d'une tôle d'acier.
Ｓｉを０．２質量％以上含む鋼板に溶融亜鉛めっきを施した場合でも、めっき密着性が高く良好なめっき外観を得ることができる溶融亜鉛めっき鋼板の製造方法を提供することを目的とする。 加熱帯と、均熱帯と、冷却帯とがこの順に並置された焼鈍炉と、前記冷却帯に隣接したスナウトと、溶融亜鉛めっき設備とを有する連続溶融亜鉛めっき装置を用いてＳｉを０．２質量％以上含む鋼板に溶融亜鉛めっきを行うに際して、均熱帯の下流側の領域に下記式（１）を満たすような水分を含む窒素水素混合ガスを投入し、スナウト内に内壁全周にわたる気体ノズルを設け、前記気体ノズルから内壁に沿って下向きに窒素あるいは窒素水素混合ガスを投入して、スナウト内露点が－５０～－３５℃となるように制御する。 １５８＜Ｍ／Ｘ＜１７８ ・・（１） ただし、Ｍは、均熱帯に投入する前記加湿ガスに含まれる水分量に関するパラメータであり、Ｘは鋼板表面積への影響に関するパラメータである。</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | METHOD FOR PRODUCING HOT-DIP GALVANIZED STEEL SHEET |
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