Process for cleaning and drying ferrous surfaces without causing flash
rusting
    6.
    发明授权
    Process for cleaning and drying ferrous surfaces without causing flash rusting 失效
    清洁和干燥铁质表面而不会引起闪光生锈的方法

    公开(公告)号:US5464477A

    公开(公告)日:1995-11-07

    申请号:US146362

    申请日:1993-11-02

    Applicant: Sami B. Awad

    Inventor: Sami B. Awad

    CPC classification number: C23G5/024 F26B5/005

    Abstract: The present invention relates to an aqueous composition and process useful for cleaning and drying ferrous surfaces. According to the invention, a water-immiscible hydrocarbon or non-halogenated organic solvent cleaning step is followed by an aqueous displacement solution (ADS) which contains a surfactant component and a pH modifier component in sufficient amounts to substantially displace the hydrophobic organic solvent residue from the surface of the substrate and prevent its redeposition. The ferrous metal surfaces are then rinsed with hot deionized ultrasonically agitated water which comprises one or more water soluble basic components. This aqueous composition is capable of protecting ferrous metal surfaces form flash rusting after aqueous cleaning or solvent treatments of the surfaces, and particularly during the deionized water rinsing and drying steps.

    Abstract translation: 本发明涉及一种用于清洗和干燥铁质表面的含水组合物和方法。 根据本发明,与水不混溶的烃或非卤代有机溶剂清洗步骤之后是含水置换溶液(ADS),其含有足够量的表面活性剂组分和pH调节剂组分,以基本上将疏水性有机溶剂残余物从 衬底的表面并防止其再沉积。 然后用含有一种或多种水溶性碱性组分的热去离子超声波搅拌水漂洗黑色金属表面。 该水性组合物能够在水性清洁或表面的溶剂处理之后,特别是在去离子水漂洗和干燥步骤期间,保护黑色金属表面形成闪锈。

    Method for cleaning and drying of metallic and nonmetallic surfaces
    7.
    发明授权
    Method for cleaning and drying of metallic and nonmetallic surfaces 失效
    金属和非金属表面的清洁和干燥方法

    公开(公告)号:US5397397A

    公开(公告)日:1995-03-14

    申请号:US18693

    申请日:1993-02-17

    Applicant: Sami B. Awad

    Inventor: Sami B. Awad

    CPC classification number: F26B5/005 C23G5/024

    Abstract: The present invention relates to an aqueous composition and improved process useful for cleaning and facilitate drying of various metallic and non-metallic surfaces or components. According to the invention the water-immiscible hydrocarbon or non-halogenated organic solvent cleaning step is followed by an aqueous displacement solution (ADS) which contains a surfactant component and a pH modifier component in sufficient amounts to substantially displace the hydrophobic organic solvent residue from on the surface of the substrate and prevent its redeposition. The improved process is an alternative for replacing the ozone depleting chlorofluorocarbons and Halogenated solvents (ODS) or other volatile organic solvents (VOC) being commonly used in cleaning variety of industrially manufactured metallic and non-metallic components. The present invention provides an effective method for removal of various light and heavy surface contaminants such as, but not limited to, fluxes, oils, waxes, buffing and lapping compounds, finger prints, silicone oils, metal forming lubricants, polymers and mold release compounds.

    Abstract translation: 本发明涉及一种水性组合物和改进的方法,其可用于清洁和促进各种金属和非金属表面或组分的干燥。 根据本发明,与水不混溶的烃或非卤代有机溶剂清洗步骤之后是含水置换溶液(ADS),其含有足够量的表面活性剂组分和pH调节剂组分,从而基本上将疏水性有机溶剂残留物置于 衬底的表面并防止其再沉积。 改进的方法是替代通常用于清洁各种工业制造的金属和非金属组分的消耗臭氧的氯氟烃和卤代溶剂(ODS)或其它挥发性有机溶剂(VOC)的替代方案。 本发明提供了一种去除各种轻质和重型表面污染物的有效方法,例如但不限于助熔剂,油,蜡,抛光和研磨化合物,指纹,硅油,金属成型润滑剂,聚合物和脱模剂 。

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