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1. 发明专利

JPH1143755A OVERHEAD POT FOR HOT-DIP PLATING EASY TO EXHAUST HOT-DIP PLATING METAL 失效
公开(公告)号：JPH1143755A
公开(公告)日：1999-02-16
申请号：JP19660797
申请日：1997-07-23
申请人： NISSHIN STEEL CO LTD , KAWASAKI STEEL CO , MITSUBISHI HEAVY IND LTD
发明人： HOSOMI KAZUAKI , MORITA YOSHIKAZU , ANDO ATSUSHI , KAWAGUCHI YASUTAKA , HASHIDA TAKUYA , HAYASHI YOSHIO , MATSUKAWA TOSHITANE , TORAO AKIRA , NAGAI TAKANORI , KAWAMIZU TSUTOMU
IPC分类号： C23C2/00 , C23C2/40 , C23C4/14
摘要： PROBLEM TO BE SOLVED: To provide an overhead pot for hot-dip plating in which hot-dip plating metal is naturally flowed out from a nozzle for spraying hot-dip plating metal and free from the remaining and sticking of the plating metal to the inside face of the nozzle. SOLUTION: Nozzles 6 spraying hot-dip plating metal on both faces of the surface and back of a steel strip 1 passing through an opening part formed at the bottom are provided slantly on the lower part in the pot. Hot-dip plating metal 7 is fed from headers 5 connected to a sub-pot to the nozzles 6, is sprayed on the steel strip 1 and is housed in a hot-dip plating metal housing part in the upper direction of the nozzles. The excess hot-dip plating metal 7 gets over overflow weirs 8 and is recovered from exhaust tubes 12 to the sub-pot. At the time of the stop of the plating, in the case that plugs 13 are pulled up, the hot-dip plating metal 7 in the nozzles 6 naturally flows down to the headers 5, undergoes exhaust tubes 14 and are recovers to the sub-pot.

2. 发明专利

JPH1143753A HOT-DIP PLATING METHOD AND DEVICE USING OVERHEAD POT 失效
公开(公告)号：JPH1143753A
公开(公告)日：1999-02-16
申请号：JP19660597
申请日：1997-07-23
申请人： NISSHIN STEEL CO LTD , KAWASAKI STEEL CO , MITSUBISHI HEAVY IND LTD
发明人： HOSOMI KAZUAKI , MORITA YOSHIKAZU , ANDO ATSUSHI , KAWAGUCHI YASUTAKA , HASHIDA TAKUYA , MATSUKAWA TOSHITANE , KATO CHIAKI , FUKADA YASUO , UNOKI KENICHI
IPC分类号： C23C2/00 , C23C2/24 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To prevent the graviational falling of hot-dip plating metal from the opening part for carrying-in steel strips of an overhead pot at the time of the start and stop of plating in hot-dip plating using the air pot provided with an electromagnet so as to surround the openint part for carrying-in strips provided on the bottom part of the pot. SOLUTION: At the time of the start of plating, the tapered tip side faces of the movable parts 21 and 22 of an electromagnet are pushed against both faces of the surface and back of a steel strip 1 to form a V-shaped gap 25, and hot-dip plating metal 6 is fed to an overhead pot 5 from a sub-pot 8. At the time of point in which the V-shaped gap 25 is filled with the hot-dip plating metal 6, an electromagnet 10 is energized, and upward electromagnetic force preventing graviational falling is exerted on the hot-dip plating metal 6. Then, the movable parts 21 and 22 are opened to form an opening gap enabling the running of the steel strip 1, and by passing the steel strip 1 through the inside of the hot-dip plating metal 6 in the overhead pot 6 from the below to the above, the steel strip is applied with hot-dip plating. At the time of the stop of the plating, the movable parts 21 and 22 of the electromagnet are pushed against the both faces of the surface and back of the steel strip 1 to form the V-shaped gap 25, the energization of the electromagnet is stopped, and the hot-dip plating metal 6 is recovered from the overhead pot 5 to the sub-pot 8.

3. 发明专利

JPH11172396A AERIAL FLOATING POT OF HOT DIP COATING EQUIPMENT 失效
公开(公告)号：JPH11172396A
公开(公告)日：1999-06-29
申请号：JP34286497
申请日：1997-12-12
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO , NISSHIN STEEL CO LTD
发明人： YAMASHITA ICHIRO , NAGAI TAKANORI , KATO CHIAKI , AMAGASA TOSHIAKI , HOSOMI KAZUAKI , MORITA YOSHIKAZU , ANDO ATSUSHI
IPC分类号： C23C2/00 , C23C2/06 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To provide an aerial floating pot of hot dip coating equipment capable of promptly dealing with the sudden fall of a hot dip coating metal without allowing an operator to stand by at all times. SOLUTION: This aerial floating pot of the hot dip coating equipment forms a bottom aperture 12 by holding the internal hot dip coating metal 101 with a high-frequency magnetic field impression device 11 and applies plating on a steel strip 100 by passing the steel strip 100 from the bottom aperture 12 toward an upper aperture 13. A closing plate 17 having a slit to allow the passage of the steel strip 100 is disposed liftably below the bottom aperture 12. A pair of hydraulic cylinders 18 for lifting this closing plate 17 are connected to the closing plate 17 and these hydraulic cylinders 18 are connected a hydraulic device via a selector 19. On the other hand, a light emitting element/light receiving plate 20 which emits IR rays and receives reflected light and a reflection plate are disposed to hold the bottom aperture 12 in a transverse direction near this aperture. This light emitting element/light receiving plate 20 is electrically connected to the input section of a controller and the output section of this controller is electrically connected to the selector 19.

4. 发明专利

JPH1143754A OVERHEAD PROVIDED WITH MECHANISM FOR PREVENTING FALLING OF HOT-DIP PLATING METAL 失效
公开(公告)号：JPH1143754A
公开(公告)日：1999-02-16
申请号：JP19660697
申请日：1997-07-23
申请人： NISSHIN STEEL CO LTD , KAWASAKI STEEL CO , MITSUBISHI HEAVY IND LTD
发明人： HOSOMI KAZUAKI , MORITA YOSHIKAZU , ANDO ATSUSHI , KAWAGUCHI YASUTAKA , HASHIDA TAKUYA , KATO CHIAKI , TSUNEKAWA HIROSHI , MIHARA KAZUMASA , HASHIMOTO RITSUO
IPC分类号： C23C2/00 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To regulate the falling of hot-dip plating metal at the time of the start and stop of plating in hot-dip plating using an overhead pot provided with an electromagnet so as to surround the opening part for carrying-in steel strips provided at the bottom part of the pot and to facilitate the start and stop of the plating operation. SOLUTION: Directly below an electromagnet 10 arranged so as to surround the opening part for carrying-in steel strips formed on the bottom wall of the pot, a pair of recovering rolls 21 and 31 rotating in contact with both faces of the surface and back of a steel strip 1 are arranged. The hot-dip plating metal 1 separated from the recovering rolls 21 and 31 is recovered into pans 22 and 32 by doctor blades abutted on the circumferential faces of the individual recovering rolls 21 and 31, and the falling and sticking of the hot-dip plating metal 6 to a seal roll and a deflector roll arranged at the lower direction is prevented.

5. 发明专利

JPH1143751A PRODUCTION OF HOT DIP-PLATED STEEL STRIP EXCELLENT IN WORKABILITY AND PLATING ADHESION AND DEVICE THEREFOR 失效
公开(公告)号：JPH1143751A
公开(公告)日：1999-02-16
申请号：JP19660997
申请日：1997-07-23
申请人： NISSHIN STEEL CO LTD , KAWASAKI STEEL CO , MITSUBISHI HEAVY IND LTD
发明人： HOSOMI KAZUAKI , MORITA YOSHIKAZU , ANDO ATSUSHI , KIKKO TOSHIHARU , MATSUKAWA TOSHITANE , TOMURA YASUO , NAGAI TAKANORI , KAWAMIZU TSUTOMU
IPC分类号： C23C2/00
摘要： PROBLEM TO BE SOLVED: To produce a hot-dip plated steel strip in which the growth of Fe-Zn alloy phases is suppressed and having a good plating adhesion and workability in hot-dip plating equipment using an overhead. SOLUTION: At the time of executing hot-dip plating by using an air pot 20 in which an opening part for carrying-in steel strips is formed on the pot bottom wall thereof and having a nozzle spraying hot-dip plating metal on both faces of the surface and back of a steel strip 1 fed from the opening part for carrying-in steel strips, Fe-Zn alloy plases in the plating layer formed on a hot-dip galvanized steel strip 2 pulled up from a plating bath 15 held in the overhead pot 20 are detected by a fluorescent X-ray method 42, the detected value is compared with the set value, and in the case that the detected value is higher than the set value, the amt. of the hot-dip plating metal sprayed on both faces of the surface and back of the steel strip 1 to be jetted and/or the amt. of Al contained in the hot-dip plating metal to be added is increased.

6. 发明专利

JPH11209858A AERIAL POT FOR FLOATING HOT DIPPING METAL 失效
公开(公告)号：JPH11209858A
公开(公告)日：1999-08-03
申请号：JP1016998
申请日：1998-01-22
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO , NISSHIN STEEL CO LTD
发明人： YAMASHITA ICHIRO , FUKADA YASUO , KATO CHIAKI , AMAGASA TOSHIAKI , ANDO ATSUSHI , HASHIDA TAKUYA
IPC分类号： C23C2/00
摘要： PROBLEM TO BE SOLVED: To form the uniform magnetic flux density in the width direction of a steel strip and to prevent the unstable free movement of hot dipping metal by forming faced magnetic pole surfaces of an electric magnet interposing a carry-in opening part for a steel strip so as to compensate the variation of the magnetic flux density in the width direction of the strip with the steel strip passing through the carry-in opening part. SOLUTION: In order to prevent the hot dipping metal from flowing down from the carry-in opening part 13, in an aerial pot for exciting the plating by introducing the steel strip 1 into the hot dipping metal from the carry-in opening part 13 at the bottom part, the magnetic pole surfaces 17 of the electric magnet 10 generating the electromagnetic force are arranged so as to interpose the steel strip 1 at both sides of the carry-in opening part 13. At this time, the magnetic pole surfaces 17 are formed as convex shape so that the magnetic flux density between the magnetic pole surfaces becomes constant in the width direction of the strip, and as approaching the center part, the larger magnetic flux density B develops so as to develop the electromagnetic pushing-up force corresponding to this magnetic flux density B. In this way, in the whole width containing 'the strip passing part' (a) and 'no strip passing part' (b) in the carry-in opening part 13, the uniform prescribed magnetic flux density B can be held.

7. 发明专利

JPH1192901A HOT DIP METAL COATING DEVICE 失效
公开(公告)号：JPH1192901A
公开(公告)日：1999-04-06
申请号：JP24847697
申请日：1997-09-12
申请人： KAWASAKI STEEL CO , NISSHIN STEEL CO LTD , MITSUBISHI HEAVY IND LTD
发明人： MIYAGAWA KAZUYA , MATSUKAWA TOSHITANE , TOMURA YASUO , ANDO ATSUSHI , KAWAGUCHI YASUTAKA , SUEMORI HIDEAKI , KAWAMIZU TSUTOMU
IPC分类号： C23C2/00 , C23C2/24 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To provide a hot dip metal coating device of an aerial pot system by which stable plating operation can be tealized. SOLUTION: The hot dip metal coating device has a holding vessel 3 of a hot dip metal coating bath 4 which executes hot dip metal coating to a metallic strip 1 by making the metallic strip 1 enter the bath from a lover part thereof and a first magnetic field generator 2 which is disposed at a lower end part of the holding vessel, generates an alternating magnetic field penetrating the metallic strip in a board thickness direction and holds the hot dip metal coating bath 4. In this case, a second magnetic field generator 6 which generates the alternating magnetic field penetrating the metallic strip in the board thickness direction is installed above the holding vessel 3 by holding the metallic strip 1 therebetween. Further, a coating weight controller 5 for controlling thickness of the hot dip metal coating on a metallic strip surface may be installed above the holding vessel by holding the metallic strip therebetween.

8. 发明专利

JPH1192900A HOT DIP METAL COATING EQUIPMENT 失效
公开(公告)号：JPH1192900A
公开(公告)日：1999-04-06
申请号：JP24847597
申请日：1997-09-12
申请人： KAWASAKI STEEL CO , NISSHIN STEEL CO LTD , MITSUBISHI HEAVY IND LTD
发明人： AMAGASA TOSHIAKI , MATSUKAWA TOSHITANE , KATO CHIAKI , ANDO ATSUSHI , YAMASHITA RYUICHI , NAGAI TAKANORI , UNOKI KENICHI
IPC分类号： C23C2/00 , C23C2/24 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To provide hot dip metal coating equipment capable of producing a metal strip having hot dip metal coating quality uniform in a width direction. SOLUTION: The equipment has a hot dip metal coating bath holding vessel 3, where a metal strip 1 moving upward is introduced from the bottom to undergo hot dip metal coating, and a magnetic field generator 2 for generating an alternating magnetic field in the sheet thickness direction of the metal strip, and further, a control means 5 for controlling the width-direction temp. of the metal strip is provided right under the holding vessel. As the control means, conducting rolls or conducting clamps, provided in a manner to be in contact with the metal strip at both ends in a width direction, can be used. Moreover, a cooling means for cooling the width-direction ends of the metal strip or a heating means for heating the width-direction central part of the metal strip can be used as the control means.

9. 发明专利

JPH1143756A PRODUCTION OF HOT-DIP PLATED STEEL STRIP EXCELLENT IN WORKABILITY AND PLATING ADHESION AND DEVICE THEREFOR 失效
公开(公告)号：JPH1143756A
公开(公告)日：1999-02-16
申请号：JP19660897
申请日：1997-07-23
申请人： NISSHIN STEEL CO LTD , KAWASAKI STEEL CO , MITSUBISHI HEAVY IND LTD
发明人： HOSOMI KAZUAKI , MORITA YOSHIKAZU , ANDO ATSUSHI , KIKKO TOSHIHARU , KATO CHIAKI , MATSUKAWA TOSHITANE , MIHARA KAZUMASA , UNOKI KENICHI
IPC分类号： C23C2/00 , C23C2/40 , C23C4/14
摘要： PROBLEM TO BE SOLVED: To produce a hot-dip plated steel strip in which the growth of Fe-Zn alloy phases is suppressed in hot-dip plating equipment using an air pot and good in plating adhesion and workability. SOLUTION: In applying hot-dip plating by using an overhead pot in which an opening part for carrying-in steel strips is formed at the bottom wall of the pot and having a nozzle spraying hot-dip plating metal on both faces of the surface and back of a steel strip 1 fed from the opening part for carrying-in steel strips, a plating layer formed on a hot-dip galvanized steel strip 2 pulled out from a plating bath 15 held in the air pot 20 is subjected to X-ray diffraction 42 to detect the growing degree of Fe-Zn alloy phases, the detected alue is compared with the set value, and in the case that the detected value is higher than the set value, the amt. of the hot-dip plating metal to be sprayed on both faces of the surface and back of the steel strip and/or the amt. of Al contained in the hot-dip plating metal to be added is increased.

10. 发明专利

JP2006241495A Phosphation steel plate 有权
标题翻译：磷化钢板
公开(公告)号：JP2006241495A
公开(公告)日：2006-09-14
申请号：JP2005056382
申请日：2005-03-01
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： UENO SUSUMU , SHIMIZU TAKESHI , ANDO ATSUSHI
IPC分类号： C23C22/12
摘要： PROBLEM TO BE SOLVED: To provide a phosphation Zn-Al-Mg alloy plated steel plate having improved coating film blister corrosion resistance by modifying a phosphate film.
SOLUTION: In a chemical-converted steel plate, a phosphate film with the volume-regulation of metal elements other than Zn is deposited on a surface of the Zn-Al-Mg alloy plated steel plate. A plating layer on the surface of a base material contains, by mass, 3-15% Al and 2-5% Mg. Deposition such as Ni, Co, and Fe to be substitution-deposited on the surface of the base material through phoaphating is set to be ≤10 mg/m
2 . Phosphate crystal of the chemical conversion film contains at least Mn or Mg of ≥0.04 mol ratio to Zn other than Zn, and the mol ratio of Ni, Co and Fe contained in the phosphate crystal to Zn is controlled to be ≤0.05.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过改变磷酸盐膜来提供具有改进的涂膜起泡耐腐蚀性的磷酸锌Zn-Al-Mg合金电镀钢板。解决方案：在化学转化的钢板中，在Zn-Al-Mg合金镀覆钢板的表面上沉积具有除Zn以外的金属元素的体积调节的磷酸盐膜。基材表面的镀层含有3〜15％的Al和2-5％的Mg。沉积物如Ni，Co和Fe被沉积在基体材料的表面上通过印迹被设定为≤10mg/ m 2。化学转化膜的磷酸盐晶体至少含有与Zn以外的Zn以上≥0.04摩尔比的Mn或Mg，将磷酸盐晶体中所含的Ni，Co和Fe的摩尔比控制为≤0.05。版权所有（C）2006，JPO＆NCIPI

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