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21. 发明专利

JPS59129797A Plated steel material 失效
标题翻译：镀钢材料
公开(公告)号：JPS59129797A
公开(公告)日：1984-07-26
申请号：JP496183
申请日：1983-01-14
申请人： Sumitomo Metal Ind Ltd
发明人： SAKOTA AKITO , WAKANO SHIGERU , FUKUI KUNIHIRO , NISHIHARA MINORU
IPC分类号： C25D5/26 , C25D5/10
摘要： PURPOSE: To provide a plated steel sheet for automotive use, etc. which has substantially three plating films; a lower layer having a corrosion preventive function, the uppermost layer of iron or a ferrous alloy and a middle layer of the metal or alloy chemically nobler than iron and by which corrosion resistance and chemical convertibility are satisfied.
CONSTITUTION: A plated steel sheet has successively a lower, middle and the uppermost plating films 2, 3, 4 having different functions on a base 1 of a steel material such as a cold rolled steel sheet. Each layer may consist of plural layers in this case. The film 2 consists of, for example, Zn or a Zn alloy such as Zn-Ni or Zn-Fe, and the film 4 consists of Fe-Zn, Fe-Sn, Fe-Mn, etc. The film 4 is intended for forming phosphophyllite having excellent corrosion resistance and adhesion of a paint coated film in the stage of a phosphate treatment as a surface preparation for painting. The film 3 is intended to permit quick dissolution of the film 4 on account of the presence of said film, in which novelty lies.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：提供具有三个镀膜的汽车用电镀钢板等; 具有防腐蚀功能的下层，铁或铁合金的最上层和金属或合金的中间层比铁高，并且耐腐蚀性和化学可转换性得到满足。构成：电镀钢板在冷轧钢板等钢材的基材1上依次具有不同功能的下，中，最上层的镀膜2,3,4。在这种情况下，每个层可以由多个层构成。膜2例如由Zn或Zn合金如Zn-Ni或Zn-Fe组成，膜4由Fe-Zn，Fe-Sn，Fe-Mn等组成。膜4用于在磷酸盐处理阶段形成具有优异的耐腐蚀性和涂漆膜的粘合性的磷灰石作为喷涂用表面处理剂。电影3旨在允许由于所述胶片的存在而使胶片4快速溶解，其中新颖性在于。

22. 发明专利

JPS5877591A MULTILAYERED PLATED STEEL PLATE 失效
公开(公告)号：JPS5877591A
公开(公告)日：1983-05-10
申请号：JP17384381
申请日：1981-10-30
申请人： SUMITOMO METAL IND
发明人： ASANO KAZUO , NISHIHARA MINORU , SHIBUYA ATSUYOSHI , WAKANO SHIGERU
IPC分类号： C25D5/26 , C25D5/10
摘要： PURPOSE:To obtain a plated steel plate provided with good corrosion resistance and paintability by forming an iron-zinc electroplated layer of a high iron content on the uppermost layer of a general iron-zinc alloy electroplated steel plate of low iron contents. CONSTITUTION:An iron-zinc alloy plated layer of 5-60% iron content and 5-60g/m coating weight per side is formed as the 1st layer on a steel plate. An iron-zinc alloy plated layer of >=65% iron content and 1-10g/m coating weight per side is formed as the 2nd layer thereon. Here, if the iron content of the 1st layer is out of said range, corrosion resistance is poor. If the coating weight thereof is below the lower limit, the corrosion resistance is insufficient and at the upper limit, the corrosion resistance is sufficient. If the iron content of the 2nd layer is below 65%, it is difficult to obtain good paintability. If the coating weight thereof is below the lower limit, good paintability is not obtained and at the upper limit, paintability is sufficient. In excess of the upper limit, the effect upon the corrosion resistance is low.

23. 发明专利

JPS55115974A COLD ROLLED STEEL PLATE OF SUPERIOR CHEMICALLCONVERSION TREATABILITY 失效
公开(公告)号：JPS55115974A
公开(公告)日：1980-09-06
申请号：JP2381479
申请日：1979-02-28
申请人： SUMITOMO METAL IND
发明人： NISHIHARA MINORU , WAKANO SHIGERU , FUJINO MASAKATSU , USUKI TOMOSUKE , HOBO YOSHIHIKO
IPC分类号： C23C22/78
摘要： PURPOSE:To form the film of high evenness through chemical-conversion treatment, particularly phosphating, on the cold rolled steel plate obtained by forming the Fe oxide film of the specific thickness on the surface of the steel plate having the specified surface Mn amount. CONSTITUTION:The Fe oxide film of the thickness that can be dissolved away when dipped for 0.5-10 minutes in an aqueous solution of potassium hydrogenphosphate and caustic soda of pH7 is formed on the surface of the cold rolled steel plate whose surface Mn amount has been controlled to 0.15-0.45%. In this way, the Mn amount of the steel plate itself is kept as ordinary and the Mn amount is increased only in the surface layer part; in addition, the Fe oxide layer of the specific thickness is formed, whereby the workability of the steel plate is retained within a practicable range and yet the solute of Fe in the steel is effectively suppressed in the chemical-conversion treatment, so that the even film is obtained.

24. 发明专利

JPH07278776A GALVANNEALED STEEL SHEET AND ITS PRODUCTION 失效
公开(公告)号：JPH07278776A
公开(公告)日：1995-10-24
申请号：JP10185894
申请日：1994-04-14
申请人： SUMITOMO METAL IND
发明人： YAGAWA ATSUHISA , ADACHI YOSHITAKA , WAKANO SHIGERU
IPC分类号： C23C2/06 , C23C2/28
摘要： PURPOSE:To improve the workability, formability, shearing workability and low-temp. chipping property which are considered to be the tasks with a galvannealed steel sheet. CONSTITUTION:The Fe content in the galvannealed film on the front surface of the alloyed galvanized steel sheet of which the galvannealing depositions of the front and rear surfaces are both 10 to 80g/m and the galvannealing deposition of the front surface is below the galvannealing deposition of the rear surface is >=10 to =7 to

25. 发明专利

JPH07227692A WIRE FOR GAS SHIELDED ARC WELDING AND ITS PRODUCTION 失效
公开(公告)号：JPH07227692A
公开(公告)日：1995-08-29
申请号：JP2113294
申请日：1994-02-18
申请人： SUMITOMO METAL IND , SUMIKIN WELDING IND
发明人： KIMOTO MASAYA , WAKANO SHIGERU , SAKOTA AKITO , UCHIHARA MASATO , KO TAKAO , TSUMURA HIROYASU
IPC分类号： B23K35/02 , B23K35/30 , B23K35/40 , C25D15/00
摘要： PURPOSE:To provide a wire for gas shielded arc welding which is easily producible, has high stability of arcs and produces spatters in a smaller amt. and a process for producing this wire. CONSTITUTION:A metallic electroplating layer 12 on the surface contains >=1 kinds of the metal oxides 14 selected from a group consisting of respective metal oxides of Ti, Mo, V, Cr, Mn and W at 0.01 to 30wt.% in total and its thickness is specified to 0.1 to 10mum. An acidic electroplating bath of a sulfuric acid contg. soluble salts of the respective metals is used for an electroplating bath of metal.

26. 发明专利

JPH0368749A PRODUCTION OF HOT DIP GALVANIZED STEEL SHEET 失效
公开(公告)号：JPH0368749A
公开(公告)日：1991-03-25
申请号：JP20319489
申请日：1989-08-05
申请人： SUMITOMO METAL IND
发明人： NAKAMORI TOSHIO , TOKI TAMOTSU , WAKANO SHIGERU
IPC分类号： C23C2/06 , C23C2/28
摘要： PURPOSE:To produce a hot dip galvanized steel sheet having superior corrosion resistance and external appearance even in an as-plated state or an alloying- treated state by using a hot dip galvanizing bath containing specific amounts of Al and Mn or further subjecting the resulting plating layer to alloying treatment. CONSTITUTION:At the time of applying hot dip galvanizing to the surface of a steel sheet, hot dip galvanizing is carried out by using, as a plating bath, a hot dipping bath which has a composition consisting of, by weight, 0.15-1.0% Al, 0.4-2.0% Mn, and the balance Zn and satisfying the condition of [Al%]X[Mn%]

27. 发明专利

JPH02213460A METHOD AND DEVICE FOR CONTINUOUSLY PRODUCING STEEL SHEET EXCELLENT IN SURFACE CHARACTERISTIC 失效
公开(公告)号：JPH02213460A
公开(公告)日：1990-08-24
申请号：JP3562289
申请日：1989-02-15
申请人： SUMITOMO METAL IND
发明人： SAKOTA AKITO , WAKANO SHIGERU
IPC分类号： C23C22/07 , C23C8/38 , C23F4/00
摘要： PURPOSE:To stably produce a steel sheet excellent in its surface characteristic by carrying out plasma treatment when the sheet is kept in a specified temp. range in the continuous heat-treating process of a steel sheet. CONSTITUTION:The continuous heat-treating device 20 for a steel sheet 1 is formed by a heating zone 10, a soaking zone 12, a cooling zone 14, a plasma treating zone 16 and a cooling zone 18. The band steel 1 is heated to a high temp. in the heating zone 10 and the soaking zone 12, and a gas jet is blown against the heated sheet in the cooling zone 14 to quench the sheet to 300-700 deg.C. The band steel 1 is then treated with plasma in the plasma treating zone 16 and then cooled in the cooling zone 18. At this time, a differential-pressure sealing device 22 is provided in the inlet and outlet sides of the sheet 1 in the plasma treating zone 16, and a plasma treating device 21 to be evacuated from the atmospheric pressure to about 10 -10Torr in several stages is provided. By this method, the band steel 1 with its phosphating property remarkably improved is obtained.

28. 发明专利

JPH02190462A ALLOYING-TREATED HOT DIPPING STEEL SHEET AND ITS PRODUCTION 失效
公开(公告)号：JPH02190462A
公开(公告)日：1990-07-26
申请号：JP816189
申请日：1989-01-17
申请人： SUMITOMO METAL IND
发明人： NAKAMORI TOSHIO , TOKI TAMOTSU , FUKUI KUNIHIRO , WAKANO SHIGERU
IPC分类号： C23C2/06 , C22C18/00 , C23C2/02 , C23C2/28
摘要： PURPOSE:To obtain alloying-treated hot dipping steel sheet which is excellent in workability, weldability and smoothness of the surface of a plated layer by plating Ni and Co, etc., on the surface of steel sheet and thereafter hot- dipping Zn-Al alloy thereon and successively performing alloying-treatment for the plated layer. CONSTITUTION:One or two kinds of Ni and Co are plated on the surface of steel sheet at built-up amount shown in a formula. Thereafter Zn-Al alloy having composition consisting of 0.2-10wt.% Al and the balance Zn is hot dipped thereon. Successively this plated layer is integrally alloyed e.g. at 500 deg.C and thereby the alloyed plated layer is formed which has composition consisting of by wt.% 0.5-10% Al, 7-30% Fe and 0.1-30% total amount of one or two kinds of Ni and Co and the balance Zn. The surface roughness of the plated layer is regulated to

29. 发明专利

JPH02117702A COLD ROLLED STEEL SHEET HAVING GOOD TRANSFERABILITY AND VERTICAL PLANTING CAPABILITY 失效
公开(公告)号：JPH02117702A
公开(公告)日：1990-05-02
申请号：JP26877788
申请日：1988-10-25
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO TAKESHI , KO TAKAO , SUDO CHUZO , WAKANO SHIGERU
IPC分类号： B21B1/22
摘要： PURPOSE:To obtain a cold rolled steel sheet having good transferability and vertical painting capability by working the sheet so that both average center line surface roughnesses of a specific direction (x) and the direction (y) orthogonal to the direction (x) meet specific conditions. CONSTITUTION:The transfer direction and the direction orthogonal to the transfer direction, that is, a vertical painting direction are denoted by (x) and (y), respectively. Respective center line average roughnesses Ra and Ra are made to meet conditions expressed by formulas. In the case of dull working a roll, pitches of beam irradiation are made to be different in the roll axial and peripheral directions from each other to obtain a crater distribution meeting conditions. Roughness in the transfer direction is increased to meet the relation shown by the formula I to prevent slips in transfer. As for the formula II, if roughness over the total area of the sheet is smaller than a value shown by the condition, press formability is made to be worse and if the roughness is larger than the value, image clarity after painting is made to be worse. The condition expressed by the formula III indicates a desirable range of transferability and image clarity. The formula IV shows a condition by which vertical painting capability is further increased.

30. 发明专利

JPH01198458A HIGHLY CORROSION RESISTANT SURFACE-TREATED STEEL SHEET 失效
公开(公告)号：JPH01198458A
公开(公告)日：1989-08-10
申请号：JP2345688
申请日：1988-02-03
申请人： SUMITOMO METAL IND
发明人： SAKOTA AKITO , WAKANO SHIGERU , ITO MAKI , SHIODA TOSHIAKI , USUKI TOMOAKI
IPC分类号： C23C22/00 , C23C2/06 , C23C22/24
摘要： PURPOSE:To directly form a dense and uniform chromate film and to provide high corrosion resistance by forming an alloying hot dip galvanizing film in which the atomic ratio between Zn and Al in the outermost surface layer is regulated on the surface of a steel sheet. CONSTITUTION:An alloying hot dip galvanizing film in which the atomic ratio between Zn and Al in the outermost surface layer of a plating film is regulated to >=0.8 is formed on the surface of a steel sheet, or, a chromate film of 10-300mg/m Cr coating weight is further formed as a secondary layer, and, preferably, an organic high polymer film of >=0.3mum film thickness is further formed as a tertiary layer on the above. By using this steel sheet, chromate treatment can be directly applied to the alloying hot dip galvanizing film while obviating the necessity of separate stages, such as acid treatment and extra thin galvanizing. The resulting chromated surface-treated steel sheet is useful for the purposes requiring high corrosion resistance, such as fields of domestic electrical appliances and building materials, automobile use, marine structure use, etc.

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