利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

25 条记录 (耗时 0.022 秒)

    High aluminum galvanized steel
    4.
    发明授权
    High aluminum galvanized steel 有权

    公开(公告)号：US06372296B1

    公开(公告)日：2002-04-16

    申请号：US09316612

    申请日：1999-05-21

    申请人： Wim J. van Ooij ,  Prasanna Vijayan

    发明人： Wim J. van Ooij ,  Prasanna Vijayan

    IPC分类号： B05D118

    摘要： The present invention relates to galvanized steel having a high aluminum content in the coating, as well as a batch hot-dip galvanization process for making such steel. The galvanized steel herein has a coating comprising an inner layer of intermetallic iron aluminum compounds, such as Fe2Al5 (which may have some zinc present), and an outer layer of intermetallic zinc aluminum compounds containing from about 17% to about 40% (preferably about 22%, the Zn—Al eutectoid) aluminum (which may have some iron present). The batch hot-dip galvanization process for making such steel comprises: (a) fluxing the steel by electroless plating on the surface of the steel of a metal such as tin, copper or nickel; and (b) dipping the fluxed steel into a molten galvanization bath comprising zinc and from about 17% to about 40% aluminum.

    Method of preventing corrosion of metals using silanes
    6.
    发明授权
    Method of preventing corrosion of metals using silanes 有权
    使用硅烷防止金属腐蚀的方法

    公开(公告)号：US06261638B1

    公开(公告)日：2001-07-17

    申请号：US09341422

    申请日：1999-11-01

    申请人： Wim J. van Ooij ,  Vijay Subramanian ,  Chunbin Zhang

    发明人： Wim J. van Ooij ,  Vijay Subramanian ,  Chunbin Zhang

    IPC分类号： B05D714

    CPC分类号： B05D7/56 ,  B05D7/16 ,  C09D4/00 ,  C23C22/50 ,  C23C22/56 ,  C23C22/68 ,  C23C2222/20 ,  C08G77/04 ,  C08G77/00

    摘要： A method of treating a metal substrate by applying a first coating treatment solution of 0.1% by volume of at least one silane, wherein the silane consists only of a multi-functional silane having at least two trisubstituted silyl groups, wherein the substituents are individually chosen from the group consisting of alkoxy and acetoxy, and wherein the multi-functional silane has been at least partially hydrolyzed and wherein the first coating treatment solution has a pH of less than about 7.

    摘要翻译： 通过应用0.1体积％的至少一种硅烷的第一涂层处理溶液来处理金属基材的方法，其中硅烷仅由具有至少两个三取代甲硅烷基的多官能硅烷组成，其中各取代基被单独选择 由烷氧基和乙酰氧基组成的组，并且其中所述多官能硅烷已被至少部分水解，并且其中所述第一包衣处理溶液具有小于约7的pH。

    Fluxing process for galvanization of steel
    7.
    发明授权
    Fluxing process for galvanization of steel 失效
    钢的镀锌助焊剂

    公开(公告)号：US06200636B1

    公开(公告)日：2001-03-13

    申请号：US09375802

    申请日：1999-08-17

    申请人： Wim J. van Ooij ,  Prasanna Vijayan

    发明人： Wim J. van Ooij ,  Prasanna Vijayan

    IPC分类号： B05D118

    CPC分类号： C23C18/48 ,  C23C2/02 ,  C23C2/30 ,  C23C18/31

    摘要： An improved fluxing method for the galvanization of steel, particularly batch galvanization, is disclosed. In this process, a metallic element is deposited (for example, by electroless plating) on the surface of the steel sheet or other article prior to its being dipped in the galvanization bath. Preferred metals for use in this fluxing process are tin, copper, nickel, with tin being more preferred, and mixtures of copper and tin being most preferred. This metallic film layer has a thickness between about 5 and about 50 nm. The process of the present invention provides a number of benefits when compared to conventional fluxing processes: for example, it is compatible with the inclusion of aluminum in the galvanization bath; it permits a greater time delay between the fluxing and galvanization operations; and it eliminates the formation of hydrogen chloride or other toxic fumes when the fluxed article is dipped in the molten zinc galvanization bath. Additionally, the present process permits the combination of the fluxing and pickling steps into a single step, providing a shorter and more efficient galvanization process than is conventionally used. The fluxing method may also be used in a continuous galvanization process.

    摘要翻译： 公开了一种用于镀锌的特别是分批镀锌的改进的助熔方法。 在该方法中，在将钢板或其它物品浸入镀锌浴之前，将金属元素（例如，通过无电镀）沉积在钢板或其它物品的表面上。 用于该助熔方法的优选金属是锡，铜，镍，更优选锡，最优选铜和锡的混合物。 该金属膜层的厚度为约5至约50nm。 与常规助熔方法相比，本发明的方法提供了许多益处：例如，它与在镀锌浴中包含铝相容; 它允许在助熔和镀锌操作之间更大的时间延迟; 并且当将熔化的制品浸入熔融镀锌浴中时，其消除氯化氢或其它有毒烟雾的形成。 此外，本方法允许将助熔和酸洗步骤组合成单个步骤，提供比常规使用的更短且更有效的镀锌工艺。 助熔方法也可用于连续镀锌工艺。

    Metal pretreated with an inorganic/organic composite coating with enhanced paint adhesion
    8.
    发明授权
    Metal pretreated with an inorganic/organic composite coating with enhanced paint adhesion 失效
    金属用无机/有机复合涂层预处理，具有增强的漆附着力

    公开(公告)号：US5478655A

    公开(公告)日：1995-12-26

    申请号：US187416

    申请日：1994-01-25

    申请人： Ashok Sabata ,  Wim J. van Ooij

    发明人： Ashok Sabata ,  Wim J. van Ooij

    IPC分类号： B05D7/00 ,  C09D4/00 ,  C23C22/60 ,  C23C22/83 ,  B32B15/18

    CPC分类号： B05D7/51 ,  C09D4/00 ,  C23C22/60 ,  C23C22/83 ,  B05D7/52 ,  C23C2222/20 ,  Y10T428/12549 ,  Y10T428/12562 ,  Y10T428/12569 ,  Y10T428/1259 ,  Y10T428/12604 ,  Y10T428/12611 ,  Y10T428/12618

    摘要： Painted metal sheet pretreated with a composite coating including an insoluble, inorganic inner layer and an organic outer layer. The inorganic layer is formed by rinsing the sheet with an alkaline solution containing at least 0.005M of at least one of a dissolved silicate or a dissolved aluminate. The sheet is dried to form an inorganic layer having a thickness of at least 2 .ANG.. The inorganically coated sheet then is rinsed with a solution containing at least 0.1 vol.-% of a hydrolyzed silane and at least 0.02 vol.-% of a hydrolyzed crosslinking agent. The silane treated sheet is dried to form a siloxane layer having an average thickness at least 5 .ANG.. After being painted, the siloxane layer forms an adherent bond between the paint and the metal substrate. The metal preferably is a chromium alloyed steel and may be etched prior to being rinsed with the alkaline solution to remove chromium oxide to further enhance the paint adhesion. Preferred rinsing times for the etchant, the alkaline solution and the silane solution are 2-5 seconds, 15-30 seconds and 5-10 seconds, respectively.

    摘要翻译： 用包含不溶性无机内层和有机外层的复合涂层预处理的金属板。 通过用含有至少0.005M的溶解的硅酸盐或溶解的铝酸盐中的至少一种的碱性溶液冲洗该片而形成无机层。 将片材干燥以形成厚度至少为2安士的无机层。 然后用含有至少0.1体积％水解硅烷和至少0.02体积％水解交联剂的溶液冲洗无机涂布的片材。 干燥硅烷处理片以形成平均厚度至少为5安士的硅氧烷层。 涂漆后，硅氧烷层在涂料和金属基材之间形成粘结。 金属优选是铬合金钢，并且可以在用碱性溶液冲洗之前进行蚀刻以除去氧化铬以进一步增强涂料附着力。 腐蚀剂，碱性溶液和硅烷溶液的优选漂洗时间分别为2-5秒，15-30秒和5-10秒。

    Metal substrate with enhanced corrosion resistance and improved paint adhesion
    10.
    发明授权
    Metal substrate with enhanced corrosion resistance and improved paint adhesion 失效

    公开(公告)号：US5498481A

    公开(公告)日：1996-03-12

    申请号：US499585

    申请日：1995-07-07

    申请人： Wim J. van Ooij

    发明人： Wim J. van Ooij

    IPC分类号： B05D7/00 ,  C09D5/08 ,  B05D1/06 ,  B32B27/38

    CPC分类号： B05D7/51 ,  C09D5/08 ,  Y10T428/31511 ,  Y10T428/3154 ,  Y10T428/31598 ,  Y10T428/31663 ,  Y10T428/31667 ,  Y10T428/31786

    摘要： This invention is a blended powder mixture including a thermosetting resin and a solid, non-hydrolyzed, functional low molecular weight organosilane coupling agent. The powder mixture may be used to form a composite coating to protect a steel substrate from corrosion. The composite coating is formed by coating the substrate with an inorganic layer such as a silicate, depositing the powder mixture over the inorganic layer, heating the substrate to a temperature at least equal to the curing temperature of the resin and maintaining the substrate at the curing temperature for sufficient time to crosslink the resin and to diffuse the organosilane to the substrate whereby the crosslinked layer is coupled to the inorganic layer by the organosilane. The powder mixture includes 0.01-10 wt. % organosilane having a melting point no greater than the curing temperature of the resin. Preferred thermosetting resins include epoxy, polyester, epoxy-polyester, acrylic, acrylic-urethane or fluorovinyl.