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1. 发明专利

JPH07275788A WELDABLE TYPE COATED METAL PLATE 失效
公开(公告)号：JPH07275788A
公开(公告)日：1995-10-24
申请号：JP6600394
申请日：1994-04-04
申请人： IGETA KOBAN KK , SUMITOMO METAL IND
发明人： SHIOTANI KAZUHIRO , KAMEDA SUSUMU , IKISHIMA KENJI , YOSHIDA KIWAMU , MIZUSHI HIROYUKI , FUKUI KIYOYUKI
IPC分类号： B05D1/28 , B05D5/06 , B05D7/14 , B05D7/24 , B32B15/08
摘要： PURPOSE:To obtain a weldable type coated metal plate in which a pressure trace of a weld hardly attracts attention even when a plate thickness is small by forming a coating film having an orange peel appearance on the surface of a metal plate which has been subjected to surface preparation and also forming an organic coating film whose thickness is not more than a specific value on its back surface. CONSTITUTION:A coating film having an orange peel appearance is formed on the surface of a metal plate which has been subjected to surface preparation, and also an organic coating film whose thickness is

2. 发明专利

JP2012110920A METHOD OF MANUFACTURING AXLE CASE 审中-公开
公开(公告)号：JP2012110920A
公开(公告)日：2012-06-14
申请号：JP2010261369
申请日：2010-11-24
申请人： PRESS KOGYO KK , SUMITOMO METAL IND
发明人： NAGAI YOSHINORI , FUKUI KIYOYUKI
IPC分类号： B23K20/00 , B60B35/16
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing an axle case, which can reduce heat effect in a periphery of a joint part and can improve quality of a joining fitting, in diffusion-bonding an FCD material and a steel material having a rectangular shape in cross section while thickening.SOLUTION: An inductor 20 formed of a one-turn coil having a rectangular shape is arranged so as to cover an outer circumference of the joint part 12. The joint part 12 is induction-heated by the inductor 20, and first diffusion bonding of the joint part 12 is carried out while performing upset processing for increasing a thickness of the joint part 12 by pressing the joint part 12 in an axial direction, and then the joint part is cooled. Thereafter, in order to induction-heat a low-temperature heating region 43 in a position of a feeding lead part 41 of the inductor 20, the inductor 20 is rotated by 180° or 90° around axial cylinders 10, 11 and is rearranged to carry out second diffusion bonding of the joint part 12.

3. 发明专利

JP2009095881A Method of manufacturing welded structural member 审中-公开
标题翻译：制造焊接结构件的方法
公开(公告)号：JP2009095881A
公开(公告)日：2009-05-07
申请号：JP2007272632
申请日：2007-10-19
申请人： H One:Kk , Sumitomo Metal Ind Ltd , 住友金属工業株式会社 , 株式会社エイチワン
发明人： UCHIHARA MASATO , NISHIHATA HITOMI , FUKUI KIYOYUKI , TAIYAMA MASANORI , MORIOKA ATSUSHI
IPC分类号： B23K11/14
摘要： PROBLEM TO BE SOLVED: To manufacture a welded structural member by stably forming a large nugget in the interface of members to be welded by using one-side resistance spot welding by which the members to be welded are pressurized from one side without using a back bar and a back bar electrode even when the members to be welded are metal sheets having low rigidity. SOLUTION: When performing the one-side resistance spot welding in which a second member 2 to be welded is energized through an electrode tip 3 for spot welding which abuts on the surface of the second member 2 to be welded which is arranged by being superposed on a first member 1 to be welded, a projecting part 4 which is convex toward the side of the second member 2 to be welded is formed in a position of the first member 1 to be welded, the position being opposite to a position where the electrode tip 3 for spot welding abuts on the second member 2 to be welded. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过使用单侧电阻点焊在待焊接部件的界面中稳定地形成大熔核而制造焊接结构部件，待焊接部件从一侧加压而不使用背棒和后棒电极，即使要被焊接的构件是具有低刚性的金属片。解决方案：当通过用于点焊的电极头3进行待焊接的第二构件2通电的单面电阻点焊时，该电阻焊点邻接在被焊接的第二构件2的表面上，叠置在待焊接的第一构件1上，在待焊接的第一构件1的位置处形成朝向待焊接的第二构件2的侧面凸出的突出部分4，该位置与位置相对的位置其中用于点焊的电极头3邻接在待焊接的第二构件2上。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2002294398A HIGH TENSILE STRENGTH GALVANIZED STEEL SHEET HAVING EXCELLENT RESISTANCE WELDABILITY 失效
公开(公告)号：JP2002294398A
公开(公告)日：2002-10-09
申请号：JP2001104641
申请日：2001-04-03
申请人： SUMITOMO METAL IND
发明人： FUJIMOTO HIRONORI , NAKAZAWA YOSHIAKI , FUKUI KIYOYUKI
IPC分类号： B21B1/22 , C21D9/46 , C22C38/00 , C22C38/06 , C22C38/38
摘要： PROBLEM TO BE SOLVED: To develop a technique for improving the surface cracking resistance of the resistance weld zone in a steel sheet obtained by subjecting a steel sheet having tensile strength of >=450 MPa to various galvanizing. SOLUTION: The steel sheet has a composition containing, by mass, 0.015 to 0.25% C, =720 deg.C, and is subsequently cooled to =2 deg.C/s. The steel sheet is then held in the range of 380 to 600 deg.C for >=10 sec, is further cooled, and is galvanized. Alloying treatment can be performed thereto. Instead of galvanizing, electroplating essentially consisting of zinc can be performed thereto.

5. 发明专利

JP2002172363A ORGANIC COATING-BEARING SURFACE TREATED STEEL PLATE 失效
公开(公告)号：JP2002172363A
公开(公告)日：2002-06-18
申请号：JP2000370997
申请日：2000-12-06
申请人： SUMITOMO METAL IND
发明人： TAKAHASHI KATSU , IKISHIMA KENJI , IMAI KAZUHITO , FUKUI KIYOYUKI
IPC分类号： B05D7/14 , B05D7/24 , B32B15/08 , C09D5/00 , C09D7/12 , C09D201/00 , C23C22/00 , C23C22/02 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To provide a pre-primed steel plate made of a zinc base plating-plated steel as a mother material, subjected to under coating treatment, coated with an under coating, and excellent in weldability to such as spot welding and seam welding and corrosion resistance in the cut end face. SOLUTION: The organic coating-bearing surface treated steel plate is a zinc or zinc-based alloy-plated steel plate subjected to an under coating treatment and further coated with an organic resin coating containing 10-70% by mass of ferrosilicon with a particle size of 0.5-10 μm in 2.5-8 μm thickness. In this case, ferrosilicon with 15-95% by mass of Si content is preferable. The under coating treatment may be a layer of a thermosetting type resin containing 20-95% by mass of colloidal silica in a thickness of 0.05-0.5 g/m3 or the plating layer may be an alloy plating containing 0.2-10% by mass of cobalt.

6. 发明专利

JP2001303228A GALVANNEALED STEEL SHEET EXCELLENT IN SPOT WELDABILITY, ITS PRODUCING METHOD AND EVALUATING METHOD 失效
公开(公告)号：JP2001303228A
公开(公告)日：2001-10-31
申请号：JP2000127332
申请日：2000-04-27
申请人： SUMITOMO METAL IND
发明人： ARAI MASAHIRO , FUKUI KIYOYUKI , TAKEBAYASHI HIROSHI , TOKI TAMOTSU
IPC分类号： C23C2/06 , C23C2/28 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To provide a galvannealed steel sheet excellent in continuous spotting in a spot welding, its producing method and an evaluating method for continuous spotting in the spot welding for steel sheet. SOLUTION: This galvannealed steel sheet is the one, in which the difference between the maximum value and the minimum value in an atomic concentration ratio of Al and Zn on the surface of the plated layer in the range corresponding to the surface in contact with an electrode for spot welding, is =2 times after the alloying treatment. Then, the evaluating method of the spot welding for steel sheet is performed by using the difference between the maximum value and the minimum value in the atomic concentration ratio of Al and Zn on the surface of the plated layer in the range corresponding to the surface in contact with the electrode for spot welding.

7. 发明专利

JP2001009573A WELDING JOINT OF HIGH TENSILE STEEL PLATE AND WELDING METHOD 失效
公开(公告)号：JP2001009573A
公开(公告)日：2001-01-16
申请号：JP17988499
申请日：1999-06-25
申请人： SUMITOMO METAL IND , NISSAN MOTOR
发明人： FUJIMOTO HIRONORI , FUKUI KIYOYUKI , KATSUKURA MASATO
IPC分类号： B23K11/16 , B23K11/11 , B23K103/04
摘要： PROBLEM TO BE SOLVED: To obtain a welding joint which is difficult to cut in a nugget by resistance welding a steel plate with a given value or more base metal strength and thickness, and making size of a heat-affected zone of the welding joint with a given value or more hardness to be smaller than the diameter of a corona bond part. SOLUTION: Resistance welding is performed to two or more high tensile steel plates of 440 MPa or more metal base strength and 1.2 mm or more thickness, so as to obtain a welding joint. A spot welding part is composed of a nugget to be melted/solidified and a heat-affected zone outside it, and a corona bond part to be pressure welded under high temperature exists on the interface of the plate adjacent to the nugget. The size of the heat-affected zone of the welding joint with (X+2Y)/3 or more hardness is smaller than the diameter of the corona bond part, where average hardness of the base metal is designated as X and average hardness in the nugget is as Y. The condition for performing resistance welding is set as t

8. 发明专利

JP2000319790A SURFACE TREATED STEEL SHEET FOR FUEL VESSEL AND COATING MATERIAL COMPOSITION THEREFOR 失效
公开(公告)号：JP2000319790A
公开(公告)日：2000-11-21
申请号：JP12740999
申请日：1999-05-07
申请人： SUMITOMO METAL IND , NIPPON PAINT CO LTD
发明人： TAKAHASHI KATSU , IKISHIMA KENJI , FUKUI KIYOYUKI , HIKINO SHINYA , OSHIBA TOSHIHARU
IPC分类号： B60K15/03 , B05D7/14 , B05D7/24 , C09D5/08 , C09D7/12 , C09D163/00 , C09D175/04 , C23C30/00
摘要： PROBLEM TO BE SOLVED: To produce a surface treated steel sheet using a Zn or Zn alloy plated steel sheet as a base stock, being excellent in corrosion resistance against degraded gasoline containing organic acids, provided with advanced weldability, having excellent formability and suitable for a fuel tank for automobiles. SOLUTION: A thermosetting resin layer containing one or more kinds of metallic pigments A selected from Ni, Al and an Ni-Al alloy and one or more kinds of pigments B selected from iron phosphide and ferrosilicon in a modified epoxide resin is applied by 3-10 g/m2 coating weight on the chemically converted Zn or Zn alloy plated steel sheet. The total quantity of the pigment in the resin layer is preferably controlled to 10-70 wt.%, the ratio of pigment A/ pigment B is preferably controlled to 90/10 to 30/70 and the average particle diameter of each pigment is preferably controlled to 0.5-15 μm.

9. 发明专利

JP2000167673A TAILORED BLANK, AND ITS MANUFACTURE 失效
公开(公告)号：JP2000167673A
公开(公告)日：2000-06-20
申请号：JP34811198
申请日：1998-12-08
申请人： SUMITOMO METAL IND
发明人： TAIYAMA MASANORI , FUKUI KIYOYUKI
IPC分类号： B23K11/02 , B23K11/36 , B23K37/08
摘要： PROBLEM TO BE SOLVED: To provide a joined part which is excellent in stable joint strength and formability by setting the ratio of the thickness of one steel plate whose thickness is not more than that of the other steel plate to the width of the joined part after a reinforcement bead is removed, to be a specified value or less to eliminate a step attributable to the lapping. SOLUTION: A tailored blank for press molding in which steel plates are butt welded has the width of a joined part to satisfy an inequality: W/t1

10. 发明专利

JPH11131205A HOT-DIP GALVANNEALED STEEL SHEET EXCELLENT IN WORKABILITY, CHEMICAL CONVERTIBILITY AND SPOT WELDABILITY AND ITS PRODUCTION 失效
公开(公告)号：JPH11131205A
公开(公告)日：1999-05-18
申请号：JP6311298
申请日：1998-03-13
申请人： SUMITOMO METAL IND
发明人： NISHIO KOICHI , KAWANISHI YOSHIHIRO , NAGAI HIROYUKI , FUKUI KIYOYUKI
IPC分类号： C23C22/62 , C23C2/06 , C23C2/28 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To improve the spot weldability, workability and slidability of a steel sheet by bringing a hot-dip galvanized steel sheet in which the content of Fe, the content of metallic Zn, the content of metallic Fe and the content of Al2 O3 in the topmost surface layer are specified into contact with an alkali soln. and/or an acid soln. SOLUTION: The content of metallic Zn in the topmost plating surface layer of a hot-dip galvanized steel sheet is regulated to =0.5, and the content of Al2 O3 in the topmost plating surface layer is allowed to remain body =0.9 and/or is brought into contact with an acid soln. of pH

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