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21. 发明授权

US5614327A Process for protecting a silver or silver-coated part 失效
标题翻译：用于保护银或银涂层部件的方法
公开(公告)号：US5614327A
公开(公告)日：1997-03-25
申请号：US558937
申请日：1995-11-13
申请人： Richard Morello
发明人： Richard Morello
IPC分类号： C25D3/58 , C25D11/38 , B32B15/00
CPC分类号： C25D3/58 , C25D11/38 , Y10S428/935 , Y10T428/12611 , Y10T428/12896 , Y10T428/12903
摘要： A process for protecting, especially against corrosion, a silver or silver-coated part, wherein a Cu--Sn alloy comprising from 53 to 75% copper and from 25 to 47% tin and optionally comprising up to 10% zinc is deposited on the said part over a thickness of less than 0.01 .mu.m. Another aspect of the invention is a silver or silver-coated part additionally having a protective coating formed from a Cu--Sn or Cu--Sn--Zn alloy, with a thickness of less than 0.01 .mu.m.
摘要翻译：一种用于保护，特别是防腐蚀的银或银涂层部分的方法，其中包含53-75％铜和25-47％锡并且任选地包含至多10％锌的Cu-Sn合金沉积在所述部分厚度小于0.01微米。本发明的另一方面是银或银涂层部分，其另外具有厚度小于0.01μm的由Cu-Sn或Cu-Sn-Zn合金形成的保护涂层。

22. 发明授权

US5330850A Corrosion-resistant surface-coated steel sheet 失效
标题翻译：耐腐蚀表面涂层钢板
公开(公告)号：US5330850A
公开(公告)日：1994-07-19
申请号：US997666
申请日：1992-12-28
申请人： Nobukazu Suzuki , Seiji Bando , Satoshi Ikeda , Tetsuaki Tsuda , Atsuhisa Yakawa , Yukihiro Yoshikawa
发明人： Nobukazu Suzuki , Seiji Bando , Satoshi Ikeda , Tetsuaki Tsuda , Atsuhisa Yakawa , Yukihiro Yoshikawa
IPC分类号： C25D3/56 , C25D5/10 , C25D11/38 , C25D15/02 , B32B15/08
CPC分类号： C25D11/38 , C25D15/02 , C25D3/565 , C25D5/10 , Y10T428/12549 , Y10T428/12569 , Y10T428/12799
摘要： A surface-coated steel sheet having improved corrosion resistance and suitable for use as automobile inner and outer panels comprises a steel sheet having on at least one surface thereof a composite coating which comprises the following layers (a) to (d) from the bottom to the top of the coating:(a) a first zinc alloy plating layer with a coating weight of 10-100 g/m.sup.2 which contains at least one of Ni and Co in an amount satisfying the following inequality:0.05.ltoreq.(5.times.Co)+Ni.ltoreq.10 (in weight percent),(b) a second zinc alloy plating layer with a coating weight of 0.05-10 g/m.sup.2 which contains at least one of Ni and Co in an amount satisfying the following inequality:10
摘要翻译：具有改进的耐腐蚀性并适合用作汽车内外板的表面涂覆钢板包括在至少一个表面上具有复合涂层的钢板，该复合涂层包括从底部到（d）的以下层（a）至（d）涂层的顶部：（a）涂层重量为10-100g / m 2的第一锌合金镀层，其含有满足以下不等式的量的Ni和Co中的至少一种：0.05 <=（5×Co） + Ni <10（重量％），（b）涂层重量为0.05-10g / m 2的第二锌合金镀层，其含有满足以下不等式的量的Ni和Co中的至少一种：10 <（5×Co）+ Ni <40（重量百分比），（c）铬的涂层重量为20-300mg / m 2的铬酸盐膜层，（d）厚度为0.2的有机涂层 -5亩。

23. 发明授权

US5248405A Process for producing surface-treated steel sheet superior in weldability and paint-adhesion 失效
标题翻译：生产表面处理钢板的方法在焊接性和涂料粘合性中的应用
公开(公告)号：US5248405A
公开(公告)日：1993-09-28
申请号：US823362
申请日：1992-01-21
申请人： Yoshihiro Kaneda , Ryoichi Yoshihara , Ryousuke Wake
发明人： Yoshihiro Kaneda , Ryoichi Yoshihara , Ryousuke Wake
IPC分类号： C25D5/12 , C25D11/38
CPC分类号： C25D11/38 , Y10T428/12722 , Y10T428/12854 , Y10T428/12993
摘要： A surface-treated steel sheet is provided, at a low cost, which has high weldability and is useful for a material of containers of foods and beverages. The surface treatment is conducted by applying flattened granular tin coating deposits having a specified diameter and high adhesion on a steel sheet surface at a specified plated area ratio, and applying thereon a metallic chromium coating and a chromium hydrate oxide coating.In the surface treatment, firstly, the surface of a steel sheet is subjected to tin-plating in an acidic tin plating bath containing a conventionally used brightener in an amount of from 0.001 to 0.05 g/1 so as to form flattened granular tin coating deposits having a diameter of 0.4-2.4 .mu. at a plated area ratio of 5 to 30% and to improve the adhesion to the steel sheet and decrease falling-off of the granular tin coating deposits until completion of chrome-plating, thereby the variation of the amount of tin coating being decreased. Subsequently, the sheet is plated with metallic chromium in an amount of 50-150 mg/m.sup.2, and further chromium hydrate oxide layer is formed in an amount of 2-40 mg/m.sup.2 as chromium. Thus a surface-treated steel sheet, which has satisfactory surface appearance, paint adhesiveness, under-paint-coating corrosion resistance of conventional tin-free steel sheets, and stable weldability, is producible at a low cost.
摘要翻译：以低成本提供表面处理钢板，其具有高焊接性，并且可用于食品和饮料容器的材料。表面处理通过以规定的镀覆面积比在钢板表面上施加具有特定直径和高附着力的扁平状颗粒状锡涂层沉积物，并在其上涂覆金属铬涂层和水合氧化铬涂层来进行。在表面处理中，首先，将含有常规使用的增白剂的酸性镀锡浴中的钢板的表面进行镀锡，其量为0.001〜0.05g / l，以形成扁平的粒状锡涂层沉积物直径为0.4〜2.4μm，电镀面积率为5〜30％，提高与钢板的粘合性，降低粒状锡涂层沉积物的脱落直到镀铬完成，镀锡量减少。接着，以50〜150mg / m 2的量镀金属铬，再以铬为2-40mg / m 2形成铬酸氢氧化物层。因此，可以以低成本生产具有令人满意的表面外观，涂料粘附性，常规无锡钢板的耐油漆涂层耐腐蚀性和稳定的可焊性的表面处理钢板。

24. 再颁专利

USRE34116E Organic composite-plated steel sheet 失效
公开(公告)号：USRE34116E
公开(公告)日：1992-10-27
申请号：US725762
申请日：1991-06-28
申请人： Yoshio Shindou , Motoo Kabeya , Takashi Shimazu , Fumio Yamazaki
发明人： Yoshio Shindou , Motoo Kabeya , Takashi Shimazu , Fumio Yamazaki
IPC分类号： B32B15/08 , B05D7/00 , B05D7/14 , C08G18/58 , C09D175/04 , C25D11/38
CPC分类号： B05D7/51 , C08G18/58 , C09D175/04 , C25D11/38 , C08G2150/90 , Y10S428/935 , Y10T428/12549 , Y10T428/12569 , Y10T428/12611 , Y10T428/12757 , Y10T428/12799
摘要： Disclosed is a steel sheet having an organic composite plating layer excellent in press workability, spot weldability, electrodeposition coatability and corrosion resistance which comprises a zinc plated, aluminum plated or zinc base composite alloy steel sheet, a first layer of an insoluble chromate film of 5% or less in the content of water-soluble matter formed on the surface of the steel sheet at a coverage of 10-150 mg/m.sup.2 in terms of chromium content and a second layer of a coating composition having the following composition coated at a thickness of 0.3-5 .mu.m as a solid film on said first layer:(A) a bisphenol type epoxy resin having a number-average molecular weight of 300-100,000 in an amount of 30% by weight or more of solid matter in the coating composition,(B) at least one curing agent selected from the group consisting of a polyisocyanate compound and a block polyisocyanate compound at a weight ratio to solid matter in the epoxy resin of 1/10-20/10,(C) fumed silica having an average particle size of 0.1-100 in an amount of 5-50% by weight of solid matter in the coating composition, and(D) a ketone organic solvent in an amount of 40% by weight or more of the coating composition, andthe solid content of the coating composition being 10-50% by weight.

25. 发明授权

US5021104A Steel strip for food packaging and process for production thereof 失效
标题翻译：食品包装用钢带及其制造方法
公开(公告)号：US5021104A
公开(公告)日：1991-06-04
申请号：US377791
申请日：1989-07-11
申请人： Nazzareno Azzerri , Leonardo Giorgi
发明人： Nazzareno Azzerri , Leonardo Giorgi
IPC分类号： C25D5/48 , C25D11/34 , C25D11/38
CPC分类号： C25D5/48 , C25D11/34 , C25D11/38 , Y10T428/12611 , Y10T428/12847 , Y10T428/12944 , Y10T428/12972
摘要： The suitability of the kind of steel strip known as black plate, optionally coated with small quantities of tin or nickel for food packaging, is greatly improved by ensuring the presence of a layer of P-type semiconducting oxide on the surface thereof. The ratio of the number of Type-P charge bearing atoms (NA) of that semiconducting oxide to the numbr of Type-N charge bearing atoms (ND) is greater than 1.2. The quality of the plate is yet further improved by coating the oxide surface with a thin chromic passivation layer that also contains a P-type semiconducting oxide.

26. 发明授权

US4999258A Thinly tin coated steel sheets having excellent rust resistance and weldability 失效
标题翻译：具有优异的耐锈性和可焊性的薄镀锡钢板
公开(公告)号：US4999258A
公开(公告)日：1991-03-12
申请号：US195837
申请日：1988-05-19
申请人： Ryousuke Wake , Kazuya Ezure
发明人： Ryousuke Wake , Kazuya Ezure
IPC分类号： C25D5/26 , C25D5/10 , C25D11/38
CPC分类号： C25D5/10 , C25D11/38 , Y10T428/12611 , Y10T428/12722 , Y10T428/12792 , Y10T428/12799 , Y10T428/12937
摘要： Surface treated steel sheets having excellent rust resistance and weldability, suitable for manufacturing various kinds of cans, produced by a process comprising applying 0.2 to 1 g/m.sup.2 of tin coating on a surface of a nickel coated cold rolled steel sheet, applying 0.01 to 0.3 g/m.sup.2 of zinc coating on the tin coating in such an amount that the ratio of the zinc coating amount to the tin coating amount is in a range from 2 to 30% by weight, and heating the coatings to alloy substantially all of the zinc into the tin coating layer with substantially no non-alloyed zinc left on the tin coating.

27. 发明授权

US4898649A Method for manufacturing electrolytically chromated steel sheet 失效
标题翻译：电解铬酸盐钢板的制造方法
公开(公告)号：US4898649A
公开(公告)日：1990-02-06
申请号：US309774
申请日：1989-02-10
申请人： Hiroki Iwasa , Toyofumi Watanabe , Hirohide Furuya
发明人： Hiroki Iwasa , Toyofumi Watanabe , Hirohide Furuya
IPC分类号： C25D11/38
CPC分类号： C25D11/38 , C25D9/06 , C25D9/10
摘要： A method for manufacturing an electrolytically chromated steel sheet, comprising the steps of: subjecting a steel sheet intermittently to a plurality of runs of cathodic electrolytic chromate treatment in an acidic electrolytic chromating solution. At least one of these plurality of runs of cathodic electrolytic chromate treatment is carried out at a high electric current density within the range of from 90 to 200 A/dm.sup.2, to form on at least one surface of the steel sheet a chromating film comprising a metallic chromium layer as a lower layer having numerous granular projections over the entire surface thereof, and a hydrated chromium oxide layer as an upper layer. The electrolytically chromated steel sheet manufactured in accordance with the method of the present invention is excellent in a secondary paint adhesion and a weldability, and has a satisfactory surface hue.

28. 发明授权

US4816348A Surface treated steel sheet for welded can material 失效
标题翻译：表面处理钢板用于焊接罐头材料
公开(公告)号：US4816348A
公开(公告)日：1989-03-28
申请号：US100560
申请日：1987-09-24
申请人： Hiroaki Kawamura , Masanobu Matsubara , Osamu Yoshioka , Tsuneo Inui
发明人： Hiroaki Kawamura , Masanobu Matsubara , Osamu Yoshioka , Tsuneo Inui
IPC分类号： C25D11/38 , C23C28/00 , C25D3/30 , C25D5/02 , C25D5/10 , C25D5/26 , C25D5/50 , B32B15/18
CPC分类号： C25D3/30 , C25D11/38 , C25D5/02 , C25D5/505 , Y10T428/1259 , Y10T428/12722 , Y10T428/12854 , Y10T428/12993
摘要： A surface treated steel sheet having double layers consisting of a lower layer of metallic chromium and an upper layer of hydrated chromium oxide are formed on a low tin plated steel sheet in which 30 to 80% of the surface of the steel sheet is covered with plated tin. Also, the ratio of the area of tin, which actually combined with steel sheet, to the projected area of plated tin to the steel sheet is 20 to 90% and the size of the exposed steel surface units, after tinplating, is 0.5 to 20 .mu.m in diameter when expressing the irregularly exposed areas as circles, and a method for production of this surface treated steel sheet which comprises; (a) electroplating with a small amount of tin under restricted conditions in order to obtain the low tin plated steel sheet described above, (b) after reflowing or without reflowing of the plated tin, formation of said double layer or formation of the metallic chromium layer followed by formation of hydrated chromium oxide under restricted conditions.This surface treated steel sheet is suitable for producing a welded can body without removing the plated layer at high speed, since it is excellent in weldability, lacquer adhesion and corrosion resistance after lacquering.
摘要翻译：在低镀锡钢板上形成由金属铬的下层和水合氧化铬上层构成的双层的表面处理钢板，其中钢板的表面的30〜80％被镀覆锡。另外，与钢板实际组合的锡的面积与镀锡的投影面积相对于钢板的比例为20〜90％，镀锡后露出的钢表面单元的尺寸为0.5〜20 将不规则曝光区域表示为圆形时的直径为50μm的该表面处理钢板的制造方法，其特征在于，（a）在限制条件下用少量锡进行电镀以获得上述低镀锡钢板，（b）在回流或不回镀镀锡之后，形成所述双层或形成金属铬层，然后在限制条件下形成水合氧化铬。该表面处理钢板由于焊接性，漆附着性和涂漆后的耐腐蚀性优异，因此适合于高速除去镀层的焊接罐体的制造。

29. 发明授权

US4713301A Sn-based multilayer coated steel strip having improved corrosion resistance, weldability and lacquerability 失效
标题翻译：具有改善的耐腐蚀性，可焊性和可漆性的Sn基多层涂层钢带
公开(公告)号：US4713301A
公开(公告)日：1987-12-15
申请号：US879273
申请日：1986-06-27
申请人： Seizun Higuchi , Tomonari Oga , Masao Ikeda , Hirohumi Nakano
发明人： Seizun Higuchi , Tomonari Oga , Masao Ikeda , Hirohumi Nakano
IPC分类号： C23C22/00 , C23C22/24 , C23C28/00 , C25D3/56 , C25D5/10 , C25D5/50 , C25D11/38 , B32B15/01
CPC分类号： C25D11/38 , C25D3/562 , C25D5/10 , C25D5/505 , Y10T428/12583 , Y10T428/12611 , Y10T428/12708 , Y10T428/12722
摘要： The Sn based multilayer coated steel strip for container-use is improved by the provision of a novel underlying coating of ternary Fe-Ni-P alloy which, mainly because of the Ni component, ensures a uniform deposition of the Sn layer, and mainly because of the P and Fe contents ensure a satisfactory remaining amount of free Sn for improving the weldability. The steel strip has a thin Sn plated layer and a chromate coating layer on the underlying coating.
摘要翻译：通过提供三元Fe-Ni-P合金的新型底层涂层，主要由于Ni组分而确保Sn层的均匀沉积，并且主要是因为的P和Fe含量确保了令人满意的剩余量的游离Sn以提高可焊性。钢带在下面的涂层上具有薄的Sn镀层和铬酸盐涂层。

30. 发明授权

US4608130A Method of producing metallic chromium, tin or tin-nickel, and hydrated chromium oxide electroplated steel 失效
标题翻译：生产金属铬，锡或锡镍，以及水合氧化铬电镀钢的方法
公开(公告)号：US4608130A
公开(公告)日：1986-08-26
申请号：US608088
申请日：1984-05-08
申请人： Nobuyoshi Shimizu , Terunori Fujimoto , Tsuneo Inui , Masatoki Ishida
发明人： Nobuyoshi Shimizu , Terunori Fujimoto , Tsuneo Inui , Masatoki Ishida
IPC分类号： C25D5/12 , C25D11/38
CPC分类号： C25D11/38 , C25D5/12 , Y10S205/917
摘要： Surface treated steel sheet having three layers consisting of a bottom layer of metallic chromium, a middle layer of metallic tin or tin-nickel alloy and a top layer of hydrated chromium oxide on a steel base, and a method for the continuous production of this surface treated steel sheet which comprises; (1) chromium plating on a steel base to form a layer of metallic chromium and hydrated chromium oxide, (2) tin plating by using a tin plating electrolyte having a low concentration of stannous ion or tin-nickel alloy plating by using a known tin-nickel alloy plating electrolyte, said electrolytes have a low current efficiency for tin or tin-nickel alloy plating, thereby removing said layer of hydrated chromium oxide from said chromium plated steel base; and (3) forming a layer of hydrated chromium oxide by a chromate treatment by using an acidic electrolyte containing hexavalent chromium ion.Instead of the process (2) in the above method, a cathodic treatment of chromium plated steel base in an acidic solution having a pH of 0.5 to 2.0 can be carried out for the removal of hydrated chromium oxide formed during chromium plating, and thereafter, tin or tin-nickel alloy plating by using a known tin or tin-nickel alloy plating electrolyte can be performed.By using this surface treated steel sheet, a welded can body can be produced at high speed without the removal of the plated layer in the welded part since it has an excellent weldability.
摘要翻译：具有由金属铬底层，金属锡或锡镍合金中间层和钢基底上的水合氧化铬顶层构成的三层的表面处理钢板以及连续制造该表面的方法处理钢板; （1）在钢基上镀铬以形成金属铬和水合氧化铬的层，（2）通过使用已知锡的锡亚锡离子或锡 - 镍合金镀层的低浓度的锡电镀电解质进行镀锡镍合金电镀电解质，所述电解质对锡或锡 - 镍合金电镀具有低电流效率，从而从所述镀铬钢基底除去所述水合氧化铬层; 和（3）通过使用含有六价铬离子的酸性电解质通过铬酸盐处理形成水合氧化铬层。代替上述方法的方法（2），可以进行在pH为0.5至2.0的酸性溶液中的镀铬钢基体的阴极处理，以除去镀铬期间形成的水合氧化铬，然后，可以使用已知的锡或锡 - 镍合金电镀电解质进行锡或锡 - 镍合金镀层。通过使用这种表面处理钢板，可以高速度地制造焊接罐体，而不会在焊接部分中除去镀层，因为它具有优异的焊接性。

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