摘要:
This surface-treated metal material has a base material that is formed of titanium, a titanium alloy or stainless steel, and the surface of the base material is modified. From the outermost surface to a depth of 10 nm of the surface-treated metal material, the P concentration is not less than 1.0 % by atom and the total concentration of one or more metal elements selected from the group consisting of Sn, Co, Ni, Fe, Zn and Mg is not less than 1.0% by atom. The surface-treated metal material excellently suppresses adhesion of scales that are mainly composed of calcium carbonate.
摘要:
A zinc-based metal plated steel sheet treated with a phosphate which comprises a zinc-based metal plated steel sheet and, on the surface thereof, a film formed by treating the surface with a phosphate, characterized in that the film comprises granular crystals as its main constituent and, preferably, the crystals have an average ratio of a long axis to a short axis of 1.00 to 2.90; and a method for producing the plated steel sheet, characterized as comprising subjecting a zinc-based metal plated steel sheet to a phosphate treatment using a phosphate treatment solution having an Mg ion content of 6 g/l or more and a Zn ion content of 0.5 g/l or more, or a solution having an Mg ion content of 10 mg/m or more, a Zn ion content less than 0.5 g/l and a phosphoric ion content of 40g/l or more. The zinc-based metal plated steel sheet is advantageous in that it exhibits excellent formability. Further, a zinc-based metal plated steel sheet having also excellent corrosion resistance is provided by using a phosphate treatment solution having a content of Mg ion of 10 g/l or more, and that having also excellent weldability is provided by controlling an amount of the film to 0.5 to 3.0 g/m .
摘要:
A metal surface on which a phosphate conversion coating is to be formed and which has been surface conditioned by contact with a liquid surface conditioner composition that contains dispersed fine particles of solid phosphate of at least one divalent or trivalent cations type and an adhesion promoting agent. After such conditioning, a very high quality conversion coating can be formed on the surface by contact with a nickel-free liquid phosphating composition that contains at least acid, zinc cations, and phosphate anions and optionally and preferably also contains other materials.
摘要:
The present invention provides phosphate-treated galvanized steel sheet excellent in corrosion resistance and paintability, including:
a phosphate-treated galvanized steel sheet excellent in corrosion resistance and paintability, comprising a phosphate film in an amount of at least 0.5 g/m 2 , containing at least 2 wt.% of Mg, and at least 0.5 wt.% in total of Ni and/or Mn, with at least 4 wt.% in total of Mg and Ni and/or Mn, formed on a zinc or zinc alloy plated steel sheet; and a phosphate-treated galvanized steel sheet excellent in corrosion resistance and paintability, comprising a phosphate film in an amount of at least 0.3 g/m 2 , preferably at least 1 g/m 2 , containing at least 2 wt.% of Mg, and at least 0.5 wt.% in total of Ni and/or Mn, with at least 5 wt.% in total of Mg and Ni and/or Mn, formed on a zinc or zinc alloy plated steel sheet.
摘要翻译:本发明提供的耐腐蚀性和涂料能力磷酸盐处理镀锌系钢板优良,其中包括:在耐蚀性和油漆能力的磷酸盐处理镀锌系钢板优良,在至少为0.5g / m量的包含磷酸盐膜在<2> 含有至少2重量的Mg%,和至少0.5%(重量)在总的Ni和/或Mn,具有至少4重量%的总Mg和Ni和/或Mn的,形成于锌或 锌合金镀层钢板; 和磷酸盐处理镀锌钢板的耐腐蚀性优异和油漆能力,在至少为0.3克/米<2>量的包含磷酸盐膜中,优选至少为1g / m <2>,含至少2wt。 的Mg%,和至少0.5%(重量)在总的Ni和/或Mn的,在总Mg和Ni和/或Mn中的至少5重量%,形成于锌或锌合金镀覆钢板。
摘要:
A chromium free conversion coating at least equivalent in corrosion protective quality to conventional chromate conversion coatings can be formed on metals, particularly cold rolled steel, by a dry-in-place aqueous acidic liquid comprising: (A) a component of anions, each of said anions consisting of (i) at least four fluorine atoms and (ii) at least one atom of an element selected from the group consisting of titanium, zirconium, hafnium, silicon, and boron, and, optionally, (iii) ionizable hydrogen atoms, and, optionally, (iv) one or more oxygen atoms; (B) a component of cations of elements selected from the group consisting of cobalt, magnesium, manganese, zinc, nickel, tin, zirconium, iron, and copper; the ratio of the total number of cations of this component to the total number of anions of component (A) being at least 1:5; (C) sufficient free acid to give the composition a pH in the range from 0.5 to 5.0; (D) a component selected from the group consisting of phosphorous-containing inorganic oxyanions and phosphonate anions; and (E) a component selected from the group consisting of water-soluble and water-dispersible organic polymers and polymer-forming resins.
摘要:
An acid aqueous solution useful for phosphating metal surfaces and a phosphating process using same; said solution, which is characterized by its containing hydroxylamine phosphate as accelerator and a cationic surfactant, preferably a quaternary ammonic surfactant, can be applied to metal surfaces based on iron, zinc, aluminium and alloys thereof, and is specifically suitable for preventing the formation of white spots.
摘要:
By using a zinc-phosphating solution, which does not contain a nickel ion, but contains 0.1 to 4 g/l of a cobalt ion, 0.1 to 3 g/l of a manganese ion, a phosphating accelerator, 200 to 500 mg/l of a simple fluoride compound in terms of HF concentration and a complex fluoride compound in a mole ratio of 0.01 to 0.5 relative to the simple fluoride compound, a zinc phosphate coating film suitable for cationic electrodeposition coating and superior in coating film adhesiveness and corrosion resistance, especially in warm brine resistance and scab resistance, is formed on the metal surface simultaneously having an iron-based, a zinc-based and an aluminum-based surface by using an identical solution.
摘要:
Saure, chromfreie wässrige Lösung eines Fluoro-Komplexes mindestens eines Elements M ausgewählt aus der Gruppe B, Si, Ti, Zr und Hf mit einem pH-Wert im Bereich von 2 bis 5,5 zur Behandlung von Metalloberflächen, die zusätzlich a) sowohl Zinkionen als auch Magnesiumionen, b) eine oder mehrere Komponenten ausgewählt aus: Zinnionen, Wismutionen, Puffersystemen für den pH-Bereich von 2,5 bis 5,5, aromatischen Carbonsäuren mit mindestens zwei Gruppen, die Donoratome enthalten, oder Derivaten solcher Carbonsäuren, und c) Kupferionen und/oder Silberionen enthält; Verfahren zur Korrosionsschutzbehandlung von blanken Metalloberflächen, wobei man die Metalloberflächen mit einer derartigen wässrigen Lösung in Kontakt bringt.
摘要:
A process for passivating a vapor-deposited aluminum layer on a substrate, including providing a substrate comprising vapor deposited aluminum on a surface thereof; treating the surface of the substrate with an aqueous substantially chromium-free composition comprising a hexafluorozirconate; and rinsing the treated surface with water. A process for passivating a vapor-deposited aluminum layer on a substrate, including vapor depositing a layer of aluminum on a substrate; treating the substrate with the vapor deposited aluminum with an aqueous substantially chromium-free composition comprising a hexafluorozirconate; and rinsing the treated substrate with water.