Chromium-Free Surface-Treated Tinplate, Production Method and Surface Treating Agent Therefor

    公开(公告)号:US20180347051A1

    公开(公告)日:2018-12-06

    申请号:US15779246

    申请日:2016-11-29

    CPC classification number: C23C22/40

    Abstract: Provided are a chromium-free surface-treated tinplate, a production method and a surface treating agent thereof. By coating, on the surface of a tinplate, an environmentally friendly aqueous surface treating agent containing 0.1-5 wt % of a zinc salt, 0.1-5 wt % of a zirconium salt and/or a molybdenum salt and 5-30 wt % of siloxane or polysiloxane, a layer of chromium-free passivation film having uniform and dense ingredients and a good performance and being stable is formed on the surface of a tin layer. The passivation film contains 0.1-20 mg/m2 of zinc, 0.1-20 mg/m2 of zirconium and/or molybdenum and 0.5-100 mg/m2 silicon. The passivation film can impart an excellent surface stability, corrosion resistance and paint film adhesion performance to the surface of the tinplate; in addition, contact with food is safe. The tinplate is comparable to chromium passivation in performance, and the production process thereof does not use a chromate, so that a truly green production process of a tinplate is achieved, complying with the requirements of increasingly strict environmental protection laws and regulations.

    CHEMICAL CONVERSION AGENT AND METAL SURFACE TREATMENT METHOD
    62.
    发明申请
    CHEMICAL CONVERSION AGENT AND METAL SURFACE TREATMENT METHOD 审中-公开
    化学转化剂和金属表面处理方法

    公开(公告)号:US20160040298A1

    公开(公告)日:2016-02-11

    申请号:US14782100

    申请日:2014-04-03

    Abstract: Provided is a chemical conversion agent that, with respect to an aluminum metal material, etc., contributes to superior corrosion and moisture resistance, contributes to superior adhesion with a laminate film, and contributes to superior hydrofluoric acid and alkali resistance. The chemical conversion agent includes: one or more type of metal element (A) selected from a group comprising of zirconium, titanium, and hafnium; vanadium element (B); and a resin (C). The resin (C) includes a polyvinyl alcohol resin (C1). The ratio (Wa/Wb) of the weight-based total content (Wa) of the metal element (A) relative to the weight-based content (Wb) of vanadium element (B) is 0.1-15, and the ratio ((Wa+Wb)/Wc1) of the weight-based total content (Wa+Wb) of the metal element (A) and the vanadium element (B) relative to the weight-based total content (Wc1) of the polyvinyl alcohol resin (C1) is 0.25-15.

    Abstract translation: 提供一种化学转化剂,相对于铝金属材料等有助于优异的耐腐蚀和防潮性,有助于与层压膜的优异粘附性,并且有助于优异的氢氟酸和耐碱性。 化学转化剂包括:一种或多种选自锆,钛和铪的金属元素(A); 钒元素(B); 和树脂(C)。 树脂(C)包括聚乙烯醇树脂(C1)。 金属元素(A)的基于重量的总含量(Wa)相对于钒元素(B)的重量基含量(Wb)的比(Wa / Wb)为0.1〜15,(( 金属元素(A)和钒元素(B)的基于重量的总含量(Wa + Wb)相对于聚乙烯醇树脂的重量基总含量(Wc1)的重量基总含量(Wa + Wb) C1)为0.25-15。

    Molybdenum phosphate based corrosion resistant conversion coatings
    67.
    发明授权
    Molybdenum phosphate based corrosion resistant conversion coatings 失效
    磷酸钼基耐腐蚀转化涂层

    公开(公告)号:US6162508A

    公开(公告)日:2000-12-19

    申请号:US184054

    申请日:1998-11-02

    CPC classification number: C23C22/40 C23C22/42

    Abstract: Improvements in MolyPhos corrosion resistant coatings for zinc plated surfaces and zinc alloy surfaces are presented, which enhances corrosion protection in marine environments, and other corrosive atmospheres. In particular a cerium fluoride stabilized MolyPhos coating, and organic acid stabilized coatings are provided, which improve resistance to standard salt fog test exposures to at least 300 hrs, thus extending applicability of a conventional MolyPhos coating to applications to telecommunications, electronics, automotive and aviation equipment. MolyPhos coatings offer promise as an environmentally friendly alternative to conventional chromate corrosion coatings.

    Abstract translation: 提出了镀锌表面和锌合金表面的MolyPhos耐腐蚀涂层的改进,这增强了海洋环境和其他腐蚀性环境中的腐蚀保护。 特别是提供了氟化铈稳定的MolyPhos涂层和有机酸稳定的涂层,其提高了对标准盐雾测试暴露的耐受性至少为300小时,从而延长了常规MolyPhos涂层对电信,电子,汽车和航空应用的适用性 设备。 MolyPhos涂料作为常规铬酸盐腐蚀涂料的环保替代品提供了前景。

    Absorption chiller-heater and method for forming initial anticorrosive
film therefor
    68.
    发明授权
    Absorption chiller-heater and method for forming initial anticorrosive film therefor 有权
    吸收式制冷机及其形成初始防腐膜的方法

    公开(公告)号:US06038882A

    公开(公告)日:2000-03-21

    申请号:US177113

    申请日:1998-10-22

    Abstract: An object of the present invention is to provide a method for forming an initial anticorrosive film in an absorption chiller-heater, by selecting optimal conditions of absorbent solution, steel material surface and film-forming operation for forming a good initial anticorrosive film. In the process for forming an initial anticorrosion film in an absorption chiller-heater having steel parts and containing an absorbent solution comprising lithium bromide as its main component and containing a lithium molybdate corrosion inhibitor according to the present invention, the main characteristics are that at least part of the steel parts of the absorption chiller-heater contacting with an absorbent solution at a temperature of higher than 100.degree. C. include a bare metal surface having an arithmetic mean surface roughness of not more than 1.0 .mu.m; the absorbent solution supplied comprises lithium bromide as its main component and contains a lithium molybdate corrosion inhibitor dissolved in the solution at a level of 450-750 ppm; and that an initial anticorrosion film forming operation is conducted at a condition such that amount of the lithium molybdate dissolved in the absorbent solution is maintained at not less than 200 ppm.

    Abstract translation: 本发明的目的是提供一种在吸收式冷却器加热器中形成初始防腐膜的方法,通过选择吸收剂溶液的最佳条件,钢材表面和用于形成良好的初始防腐蚀膜的成膜操作。 在具有钢部件并含有以溴化锂为主要成分并含有本发明的钼酸锂腐蚀抑制剂的吸收剂溶液的吸收式制冷机中形成初始防腐蚀膜的方法中,主要特征是至少 在高于100℃的温度下与吸收剂溶液接触的吸收式制冷机的一部分钢部件包括具有不大于1.0μm的算术平均表面粗糙度的裸金属表面; 提供的吸收剂溶液包括溴化锂作为其主要成分,并含有以450-750ppm的水平溶解在溶液中的钼酸锂腐蚀抑制剂; 并且在使溶解在吸收剂溶液中的钼酸锂的量保持在200ppm以上的条件下进行初始的防腐蚀成膜操作。

    Liquid rust proof film-forming composition and rust proof film-forming
method
    70.
    发明授权
    Liquid rust proof film-forming composition and rust proof film-forming method 失效
    液体防锈成膜组合物和防锈成膜方法

    公开(公告)号:US5743971A

    公开(公告)日:1998-04-28

    申请号:US683472

    申请日:1996-07-18

    CPC classification number: C23C22/40 C23C22/34 C23C22/48 C23C22/53

    Abstract: A liquid rust proof film-forming composition comprises (A) an oxidative substance, (B) a silicate and/or silicon dioxide and (C) at least one member selected from the group consisting of metal cations of Ti, Zr, Ce, Sr, V, W and Mo; and oxymetal anions and fluorometal anions thereof. The composition can be used in a method for forming a rust proof film on a metal substrate which comprises the step of immersing the metal substrate in the composition. The composition and the methods form an excellent rust proof film on the surface of metal substrates without using any chemical substance harmful to environment such as hexavalent chromium.

    Abstract translation: 液体防锈成膜组合物包含(A)氧化物质,(B)硅酸盐和/或二氧化硅和(C)选自Ti,Zr,Ce,Sr的金属阳离子中的至少一种 ,V,W和Mo; 和氧化金属阴离子及其含氟金属阴离子。 该组合物可用于在金属基材上形成防锈膜的方法,该方法包括将金属基材浸入组合物中的步骤。 组合物和方法在金属基材的表面上形成优良的防锈膜,而不使用任何对环境有害的化学物质如六价铬。

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