摘要:
The invention relates to a method for coating a metallic strip. The strip or optionally, the strip sections produced from said strip in the subsequent process, is/are first coated with at least one anticorrosion layer—according to an alternative form of embodiment, this can be left out—and then with at least one layer of a paint-like coating containing polymers. After being coated with at least one anticorrosion layer or after being coated with at least one layer of a paint-like coating, the strip is divided into strip sections. The coated strip sections are then formed, joined and/or coated with at least one (other) paint-like coating and/or paint coating. The paint-like coating is formed by coating the surface with an aqueous dispersion containing the following in addition to water: a) at least one organic film former containing at least one water-soluble or water-dispersed polymer with an acid value of 5 to 200; b) at least one inorganic compound in particle form with an average particle diameter measured on a scanning electron microscope of 0.005 to 0.3 μm; and c) at least one lubricant and/or at least one corrosion inhibitor. The metallic surface that is optionally coated with at least one anticorrosion layer is brought into contact with the aqueous composition and a film containing particles is formed on the metallic surface, this film then being dried and optionally also hardened, the dried and optionally, also hardened film having a layer thickness of 0.01 to 10 μm. The invention also relates to a corresponding aqueous composition.
摘要:
A method for coating a metal strip or strip sections produced from the strip in a subsequent step are first coated with at least one anticorrosive coating and then with at least one coating of a paint-like polymer-containing coating. The coated strip is divided up in strip sections and the coated strip sections are then formed, joined and/or coated with at least one further paint-like coating and/or coat of paint. The paint-like coating is an aqueous dispersion that contains, in addition to water, at least one UV-crosslinkable water-soluble and/or water-dispersible resin, at least one wax as the forming additive, at least one photoinitiator, and at least one corrosion inhibitor. The coating is dried and, In another embodiment, the strip is first coated with at least one paint-like polymer containing coating without prior application of an anticorrosive coating.
摘要:
A method is disclosed for applying phosphate coatings to surfaces of zinc, iron, aluminum, and the alloys thereof by wetting with a phosphatizing solution containing divalent cations and phosphate to form a liquid film, and subsequently drying on the liquid film wherein the metal surfaces are wetted with a phosphatizing solution, which is free from elements of sub-groups 5 and 6 of the Periodic Table, said phosphatizing solution containing:0.5 to 8 g/l nickel;2 to 20 g/l manganese;18 to 170 g/l of phosphate (calculated as P.sub.2 O.sub.5);and has an acid number of 0.4 to 0.8, such that after drying on, a phosphate layer having a weight per unit area of 0.3 to 3.0 g/m.sup.2, is obtained, where in the case of phosphatizing surfaces of iron, aluminum or the alloys thereof, the phosphatizing solution necessarily contains 0.5 to 5 g/l of zinc, and in the case of phosphatizing surfaces of zinc or zinc alloys the phosphatizing solution either contains zinc or is free from zinc.
摘要:
The invention relates to a mixture for applying a polymer, non-corrosive, electroconductive coating which can be shaped in a low-abrasive manner, to a base. Said mixture contains at least one substance A in the form of electroconductive hard particles, at least one substance B in the form of very soft or soft, inorganic, sliding, electroconductive or semiconductive particles, and/or at least one substance C in the form of metallic, soft or hard, electroconductive or semiconductive particles and/or soot, and optionally other constituents such as an anticorrosion pigment D, the sum of the parts by weight of the inorganic sliding particles B and the metallic particles and/or soot C amounting to between 0.25 and 99.5% of the parts by weight of the water-insoluble or only slightly water-soluble pigmentation S (A+B+C), and the size of the electroconductive hard particles A amounting to less than 10 ?m in relation to the particle size transfer value d99. The invention also relates to a method for producing a non-corrosive, viscoplastic coating on a base, said coating containing polymer and inorganic particles, and to an electroconductive coating containing polymer and inorganic particles.
摘要翻译:本发明涉及一种用于将能够以低磨损方式成形的聚合物,非腐蚀性导电涂层施加到基底的混合物。 所述混合物含有至少一种呈导电硬颗粒形式的物质A,至少一种物质B为非常软或软的,无机的,滑动的,导电的或半导电颗粒形式,和/或至少一种形式的物质C 金属,软或硬,导电或半导电颗粒和/或烟灰,以及任选的其它组分如防腐颜料D,无机滑动颗粒B的重量份数和金属颗粒和/或烟灰C的总和量 至不溶于水或仅轻微水溶性色素S(A + B + C)的重量份的0.25至99.5%之间,并且相对于导电硬质颗粒A的尺寸小于10微米 到粒度转移值d99。 本发明还涉及一种用于在基底上生产非腐蚀性粘塑性涂层的方法,所述涂层含有聚合物和无机颗粒,以及含有聚合物和无机颗粒的导电涂层。
摘要:
The invention relates to a coating mixture for applying a polymeric, corrosion-preventing protective layer to a metallic base for protecting an edge area, a soldered point, a weld seam or a repair point or for sealing the seam of one or more optionally interjoined strips, metal sheets or shaped parts.
摘要:
The invention relates to a mixture for applying a polymer, non-corrosive, electroconductive coating which can be shaped in a low-abrasive manner, to a base. Said mixture contains at least one substance A in the form of electroconductive hard particles, at least one substance B in the form of very soft or soft, inorganic, sliding, electroconductive or semiconductive particles, and/or at least one substance C in the form of metallic, soft or hard, electroconductive or semiconductive particles and/or soot, and optionally other constituents such as an anticorrosion pigment D, the sum of the parts by weight of the inorganic sliding particles B and the metallic particles and/or soot C amounting to between 0.25 and 99.5% of the parts by weight of the water-insoluble or only slightly water-soluble pigmentation S (A+B+C), and the size of the electroconductive hard particles A amounting to less than 10 ?m in relation to the particle size transfer value d99. The invention also relates to a method for producing a non-corrosive, viscoplastic coating on a base, said coating containing polymer and inorganic particles, and to an electroconductive coating containing polymer and inorganic particles.
摘要:
The invention relates to a coating mixture for applying a polymeric, corrosion-preventing protective layer to a metallic base for protecting an edge area, a soldered point, a weld seam or a repair point or for sealing the seam of one or more optionally interjoined strips, metal sheets or shaped parts.
摘要:
The invention relates to a coating mixture for applying a polymeric, corrosion-preventing protective layer to a metallic base for protecting an edge area, a soldered point, a weld seam and/or a repair point or for sealing the seam of one or more optionally interjoined strips, metal sheets and/or shaped parts. According to the invention, the coating mixture is largely or entirely free of water and/or of organic solvents, whereby it contains at least one radically polymerizable binding agent and at least one compound that forms free radicals when subjected to the action of actinic radiation. This radically polymerizable compound is largely or completely cured with the formed free radicals when subjected to actinic irradiation. The invention also relates to a coating mixture of the aforementioned type that additionally contains at least one post-crosslinking compound, whereby the radically polymerizable compound, when subjected to actinic irradiation, does not completely cure with the formed free radicals at temperatures ranging from 10 to 200° C. but additionally has reactive bonds that lead to an extensive or complete curing when brought into contact with the post-crosslinking compound(s). The invention additionally relates to a method for producing a polymeric corrosion-preventing protective coating using this coating mixture. Finally, the invention relates to a protective coating produced in the aforementioned manner or to a metallic base correspondingly coated and to the uses thereof.