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    • 75. 发明申请
    • CONVERSION COATINGS INCLUDING ALKALINE EARTH METAL FLUORIDE COMPLEXES
    • 转化涂层包括碱性金属氟化物复合物
    • WO2003093532A2
    • 2003-11-13
    • PCT/US2003/013258
    • 2003-04-29
    • PPG INDUSTRIES OHIO, INC.
    • GREENE, Jeffrey AllenVONK, Donald Robb
    • C23C22/00
    • C23C22/83C23C22/34C23C22/73Y10T428/12535
    • An aqueous composition for pretreating and depositing a coating on metal substrates is provided. The coating composition includes from about 1,500 to about 55,000 ppm based on the aqueous composition of a Group IIA dissolved metal ion, from about 100 to about 200,000 ppm based on the aqueous composition of a dissolved complex metal fluoride ion wherein the metal atom is selected from Group IIIA, Group IVA, Group IVB metals, Group VA, Group VB metals; and water. The composition is free of Group IIA metal fluoride precipitate achieved by including in the composition a complex metal salt different than the salt associated with the complex metal fluoride ion, with the complex metal salt being capable of complexing free fluoride ions to prevent a precipitation reaction. A process for coating a metal substrate with such an aqueous composition is further provided.
    • 提供了用于在金属基底上预处理和沉积涂层的水性组合物。 所述涂料组合物包含基于水溶液组成的基于IIA族溶解的金属离子的约1,500至约55,000ppm,基于所述水性组合物的约100至约200,000ppm的溶解的复合金属氟化物离子,其中所述金属原子选自 第IIIA族,IVA族,IVB族金属,VA族,VB族金属; 和水。 该组合物不含通过在组合物中包含与复合金属氟化物离子相关的盐不同的复合金属盐而实现的IIA族金属氟化物沉淀,其中复合金属盐能够络合游离氟离子以防止沉淀反应。 还提供了用这种水性组合物涂覆金属基材的方法。
    • 78. 发明申请
    • METHOD FOR TREATING OR PRE-TREATING COMPONENTS COMPRISING ALUMINIUM SURFACES
    • 方法用于治疗或 与前处理的铝表面成分
    • WO01092597A2
    • 2001-12-06
    • PCT/EP2001/005756
    • 2001-05-19
    • C23C22/86C23C22/36C23C22/73C23C22/80C23C22/83C23C22/00
    • C23C22/73C23C22/36C23C22/365
    • The invention relates to a method for treating or pre-treating parts, profiles, strips, or wires comprising surfaces of aluminium, or alloys containing aluminium optionally in the presence of surfaces consisting of other metals or alloys with an acidic, aqueous solution containing fluoride and phosphate. Said method is characterised in that the fluoride is present at least partially as a free fluoride in the solution and that in the bath of phosphating solution, the content of free fluoride is maintained within a concentration range of between 5 and 500 mg/l Ffree and that of aluminium is maintained within a concentration range that is less than or equal to 100 mg/l Al ions (including complexed Al). To achieve this, increases in the aluminium content are reduced to contents of less than or equal to 100 mg/l Al ions in the bath, using a precipitation container outside the phosphating bath by circulating the phosphating solution from the phosphating bath to the precipitation container and vice versa.
    • 本发明涉及一种用于部分,区域,条或电线用的铝或含有铝的合金的表面处理或预处理的方法 - 任选地在进一步的金属或合金的表面存在 - 含有氟化物和磷酸盐的酸性水 溶液,其特征在于,所述氟化物是至少部分地存在于溶液中的游离氟离子且在的游离氟离子在5至500mg / l的Ffrei和铝的浓度范围内的浓度范围内的磷化的浴中的内容小于或等于100毫克 /升铝离子(包括复杂-AL)中,通过由来自磷化浴中的磷化溶液循环至沉淀槽和返回到该浴的水平小于或等于100毫克/升Al离子降低增加铝含量在磷化外沉淀罐保持 是。