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1. 发明专利

JP2011202284A Method for producing 6000 series aluminum alloy sheet having excellent paint bake hardenability and production method therefor 有权
标题翻译：生产6000系列铝合金板的方法，具有优异的耐腐蚀性及其生产方法
公开(公告)号：JP2011202284A
公开(公告)日：2011-10-13
申请号：JP2011120444
申请日：2011-05-30
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： NAKAMORI TAKASHI , KIKUCHI MASAO , SAGA MAKOTO , TAKAHASHI MANABU , UKIANA TOSHIYASU , HIROTA YOSHIAKI , FUJII SHIRO
IPC分类号： C22C21/02 , C22C21/06 , C22F1/00 , C22F1/05
摘要： PROBLEM TO BE SOLVED: To provide a 6000 series aluminum alloy for forming having excellent paint bake hardenability, and to provide a production method therefor having excellent productivity.SOLUTION: In the 6000 series aluminum alloy containing, by mass, 0.2 to 1.0% Mg and 0.5 to 1.5% Si, the density of β'' phase deposits observed after the application of heat treatment to a product at 180°C for 9 hr is 3,000 to 7,000 pieces/μm, and proof stress after the restoration of solute atom clusters present in the product is 90 to 140 MPa. In the production method therefor, a prescribed aluminum sheet is subjected to solution quenching treatment so as to be held at 480 to 580°C for ≤5 min and thereafter to be cooled at a cooling rate of ≥5°C/s, and is next subjected to high temperature previous aging treatment in the temperature range of 150 to 250°C for 30 s to 10 min. Further, by performing a low temperature previous aging treatment in warm water of pH 4 to 7, excellent adhesive properties can further be imparted thereto.
摘要翻译：要解决的问题：提供一种具有优异的油漆烘烤硬化性的6000系列成型用铝合金，并提供具有优异生产率的制造方法。解决方案：在6000系铝合金中，以质量计含有0.2〜1.0％的Mg和 0.5〜1.5％的Si，在180℃下对产物进行热处理9小时后观察到的β相析出密度为3,000〜7000片/μm，在溶质原子簇恢复后的耐应力在产品中为90〜140MPa。在其制造方法中，对规定的铝板进行溶液淬火处理，使其在480〜580℃下保持≤5分钟，然后以≥5℃/ s的冷却速度冷却，为接着在150〜250℃的温度范围内进行30秒〜10分钟的高温以前的老化处理。此外，通过在pH4〜7的温水中进行低温以前的时效处理，可以进一步赋予优异的粘合性。

2. 发明专利

JP2004263268A HOT-DIP Zn-Al-Mn ALLOY PLATED STEEL HAVING EXCELLENT CORROSION RESISTANCE 审中-公开
公开(公告)号：JP2004263268A
公开(公告)日：2004-09-24
申请号：JP2003056736
申请日：2003-03-04
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUJII SHIRO
IPC分类号： C23C2/06 , C23C2/12
摘要： PROBLEM TO BE SOLVED: To provide hot-dip Zn-Al-Mn alloy plated steel having excellent corrosion resistance.
SOLUTION: The hot-dip Zn-Al-Mn alloy plated steel having excellent corrosion resistance has a plated layer having a composition consisting of, by mass, 35-85% Al, 0.5-10% Mn, and Si in an amount of 0.5-10% of Al content, and the balance Zn with inevitable impurities. The plated layer preferably further contains 0.1-5% Mg and 0.05-5% Cr.
COPYRIGHT: (C)2004,JPO&NCIPI

3. 发明专利

JP2003231945A Al-Zn PLATED STEEL SHEET SUPERIOR IN CORROSION RESISTANCE 审中-公开
公开(公告)号：JP2003231945A
公开(公告)日：2003-08-19
申请号：JP2002033531
申请日：2002-02-12
申请人： NIPPON STEEL CORP
发明人： MAKI JUN , FUJII SHIRO , ISAKI TERUAKI , KUROSAKI MASAO
IPC分类号： C23C2/06 , C22C21/10 , C22C38/00 , C22C38/18 , C22C38/58 , C23C2/12 , C23C2/26 , C23C2/40 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To provide a surface-treated steel sheet which balances plane corrosion resistance with end corrosion resistance. SOLUTION: The Al-Zn plated steel sheet superior in corrosion resistance has an Al-Zn plated layer comprising, by mass%, 10% or more Zn, 0.5-15% Si, 0.05% or more Cr, and the balance Al with unavoidable impurities, on the surface of a steel containing 3% or more Cr. The steel can contain Mo, Cu, Mn, and Ni, and the plated layer Mg, Sn, Ca, and a misch metal, as needed. The use of the Cr-containing steel as a base metal gives the Al-Zn plated steel sheet corrosion resistance on both the plane and the end, because Cr in the base steel diffuses into the plated layer. COPYRIGHT: (C)2003,JPO

4. 发明专利

JPH10121265A GALVANNEALED STEEL SHEET HAVING EXCELLENT LUBRICITY, DEGREASABILITY AND WELDABILITY 失效
公开(公告)号：JPH10121265A
公开(公告)日：1998-05-12
申请号：JP27622496
申请日：1996-10-18
申请人： NIPPON STEEL CORP
发明人： FUJII SHIRO
IPC分类号： C23C2/06 , C23C2/26 , C23C24/08 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To impart stable lubricity at the time of working, such as press forming, to a steel sheet and to prevent the occurrence of a forming defect and crack by distributing colloidal silica particles of a specified particle size to the surfaces of the steel sheet. SOLUTION: The colloidal silica powder having the primary crystal grain size of >=20mm is adhered at 0.05 to 1.0g/m by dry weight on the surfaces of the galvannealed steel sheet. The adhesion treatment is executed by coating the steel sheet with a soln. contg. the colloidal silica particles by a roll coater system, wringer roll system after spraying or immersing or air knife system, spraying system, etc. The reason for limiting the coating weight of the colloidal silica distributed in the steel sheet surfaces lies in that if the coating weight is smaller than 0.05g/m , the effect of improving the lubricity is not exhibited and that if the coating exceeds 1.0g/m , an increase of a production cost may be resulted and may lead to a change of the steel sheet surfaces to white and the occurrence of an appearance defect.

5. 发明专利

JPH10121260A GALVANNEALED STEEL SHEET EXCELLENT IN LUBRICITY AND DEGREASING PROPERTY 失效
公开(公告)号：JPH10121260A
公开(公告)日：1998-05-12
申请号：JP27622596
申请日：1996-10-18
申请人： NIPPON STEEL CORP
发明人： FUJII SHIRO
IPC分类号： C23C22/24 , C23C2/06 , C23C2/26 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To impart excellent lubricity and degreasing properties to a steel sheet and to prevent the generation of defects in molding at the time of molding by pressing or the like and cracking by forming a chromate treated layer contg. colloidal silica particles on the surface of a steel sheet. SOLUTION: The surface of a galvannealed steel sheet is coated with a chromate treating soln. contg. colloidal silica particles having >=20nm primary particle size by a roll coater system, a wringer roll system after spraying or immersion, an air knife system or an atomizing system, and drying is executed to form a chromate layer. The coating weight of colloidal silica at this time is regulated to 0.05 to 1.0g/m by dry weight. Furthermore, the coating weight of the chromate layer is not particularly regulated, but, it is preferably regulated to the range of 5 to 40mg/m . The colloidal silica particles roll into the space between the steel sheet and the surface of a die, by which a coagulating phenomenon caused by the metal-metal contact between the surface of the die and the surface of the galvannealed steel sheet is suppressed to improve its lubricity.

6. 发明专利

JPH08300553A METAL SHEET OF SUPERIOR RESISTANCE TO CONDENSATION 失效
公开(公告)号：JPH08300553A
公开(公告)日：1996-11-19
申请号：JP11092795
申请日：1995-05-09
申请人： NIPPON STEEL CORP
发明人： FUJII SHIRO , KANAI HIROSHI
IPC分类号： E04B1/64 , B32B5/18 , B32B15/08 , C23C2/26 , E04C2/08 , E04F13/12
摘要： PURPOSE: To provide superior resistance to condensation and improve heat insulation and moisture conditioning functions by forming a foaming resin layer having the specified value of the content of a polymer of water absorptive properties to foaming resin. CONSTITUTION: Chromate coating 2 is formed on the surface of a metal sheet 1, over which a foaming resin layer 3 having the content of polymer of water absorption properties of 5wt.% to foaming resin is formed. The polymer of water absorption properties is not dissolved in water and provided with the function of absorbing tens to hundres of times as much as its self-weight and retaining the same. Condensed water is prevented from dropping by providing water absorption properties by the polymer of water absorption properties, and condensed water is retained temporarily under the environment generating condensation such as rain or night time and evaporated in fine weather or at night. Also for the purpose of improving the heat insulation properties and water absorption properties of a material, foaming resin is used to wrap in air and demonstrate the high heat insulation effect and also to provide the retaining effect in the improvement of resistance to condensation.

7. 发明专利

JPH08300552A METAL SHEET OF SUPERIOR RESISTANCE TO CONDENSATION 失效
公开(公告)号：JPH08300552A
公开(公告)日：1996-11-19
申请号：JP11092695
申请日：1995-05-09
申请人： NIPPON STEEL CORP
发明人： FUJII SHIRO , KANAI HIROSHI
IPC分类号： E04B1/64 , B32B15/08 , C23C2/26 , E04C2/08 , E04F13/12
摘要： PURPOSE: To provide superior resistance to condensation and improve moisture conditioning function by laminating a resin sheet having at least a specified value of the content of a polymer of water absorptive properties to foaming resin on the metal surface. CONSTITUTION: Chromate coating 2 is formed on the surface of a metal sheet 1, over which a resin sheet 3 having the content of a polymer of water absorption properties of 5wt.% or more is laminated. The polymer of water absorption properties is not dissolved in water, and provided with the capability of absorbing water tens to hundreds of times as much as its self-weight, and retaining the same. When the content of the polymer of water absorption properties is less than 5wt.% to resin, the saturated water absorption rate of a resin sheet cannot be retained by 1.5 times or over. Condensed water is prevented from dropping by providing water absorption properties by the polymer of water absorption properties, and condensed water is retained temporarily under the environment generating condensation such as rain or nigh time and evaporated in fine weather or at night.

8. 发明专利

JPH08296019A GALVANNEALED STEEL SHEET EXCELLENT IN WORKABILITY AND ITS PRODUCTION 失效
公开(公告)号：JPH08296019A
公开(公告)日：1996-11-12
申请号：JP9891095
申请日：1995-04-24
申请人： NIPPON STEEL CORP
发明人： FUJII SHIRO
IPC分类号： C23C2/02 , C23C2/28
摘要： PURPOSE: To produce a galvannealed steel sheet using a Ti-Nb-added dead soft steel as a base steel sheet and excellent in workability and to provide a method for producing the same. CONSTITUTION: This steel sheet is the one in which the base steel sheet is constituted of a Ti-Nb-added dead soft steel, the primary layer on the surface of the steel sheet is constituted of a pure iron layer obtd. by subjecting the surface of the steel sheet to oxidation and reduction in an annealing stage and the secondary layer is constituted of a galvannealed layer having components contg., by weight, 8 to 13% Fe and 0.35 to 0.6% Al and whose coating weight is regulated to 20 to 90g/m . In the cross sectional structure of the plating layer, alloy phases having >=0.5% Al concn. are locally allowed to exist in the range of 2μm with the boundary of the plating layer-base steel sheet as the center, and the existing frequency thereof is equalized to the size of the grain boundary of the base steel sheet. As for the method for producing the same, after the pure iron layer is formed on the surface of the steel sheet by the oxidation and reduction in the annealing stage, the plating is executed in such a manner that the effective Al concn. in a plating bath is regulated to the range of 0.12 to 0.0%. Γ phases causing deterioration in the workability of the galvannealed steel sheet are parted by the presence of the localized phases of Al to prevent the generation and propagation of cracks at the time of subjection to deformation.

9. 发明专利

JPH08277454A STEEL SHEET HAVING HIGH FRICTIONAL COEFFICIENT 失效
公开(公告)号：JPH08277454A
公开(公告)日：1996-10-22
申请号：JP8296295
申请日：1995-04-07
申请人： NIPPON STEEL CORP
发明人： FUJII SHIRO
IPC分类号： C23C2/26 , C23C30/00
摘要： PURPOSE: To obtain a steel sheet having a high frictional coefft. at a low cost by dispersing a specified amt. of a metal or ceramic material having a specified particle size in a plating film formed on the steel sheet. CONSTITUTION: A lumpy, flake-like or acicular metal or ceramic material having 5-20μm average particle size is dispersed by 5-60vol.% in a plating film layer 2 formed on the surface of a steel sheet 1. As for the metal, Zn, Al, Cr, Ni, etc., can be used. As for the ceramic material SiO2 , Al2 O3 , ZrO2 , etc., can be used. The metal or ceramic material can be easily dispersed by spraying to the plating layer which is continuously formed and is in an unsolidified state.

10. 发明专利

JPH08269665A GALVANNEALED STEEL SHEET EXCELLENT IN WORKABILITY AND ITS PRODUCTION 失效
公开(公告)号：JPH08269665A
公开(公告)日：1996-10-15
申请号：JP7626695
申请日：1995-03-31
申请人： NIPPON STEEL CORP
发明人： FUJII SHIRO
IPC分类号： C23C2/28 , C22C38/00 , C22C38/14
摘要： PURPOSE: To produce a galvannealed steel sheet excellent in workability, in which a Ti added extra low carbon steel is used as a base steel sheet. CONSTITUTION: This base steel sheet is composed of an extra low carbon Ti- added steel and a plating layer has a composition containing, by weight, 8-13% Fe and 0.35-0.6% Al and also has (20 to 90)g/m coating weight. In the cross sectional structure of the plating layer, alloy phases of >=0.5% Al concentration are allowed to exist locally within the range of 2μm with the interface between the plating layer and the base steel sheet as the center. The frequency of existence of the locally existing phases of Al is regulated so as to correspond to the size of crystalline grain boundaries of the base steel sheet. The production of this galvannealed steel sheet is done while regulating the effective A1 concentration of a plating bath to 0.12-0.20%. Γ-phase, causing deterioration in the workability of the galvannealed steel sheet is decomposed by allowing the locally existing phase of Al to exist, and the occurrence and propagation of cracks at the time of being subjected to deformation and be prevented.

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