摘要:
A removal cleaning agent for discolored sections of titanium building materials which comprises at least a water-soluble inorganic acid salt, an organic acid or organic acid salt, a surfactant and a hydrophilic oxygen-containing hydrocarbon solvent, and optionally an discoloration inhibitor, fluoracarbon resin and polishing material. In the cleaning method for discolored sections of titanium building materials, coating is carried out with a bristle brush and a sponge roller, the coated film sections are polished with a nonwoven fabric or foam resin, optionally after aging, and then the discolored sections are removed by washing with water.
摘要:
A removal cleaning agent for discolored sections of titanium building materials which comprises at least a water-soluble inorganic acid salt, an organic acid or organic acid salt, a surfactant and a hydrophilic oxygen-containing hydrocarbon solvent, and optionally an discoloration inhibitor, fluoracarbon resin and polishing material. In the cleaning method for discolored sections of titanium building materials, coating is carried out with a bristle brush and a sponge roller, the coated film sections are polished with a nonwoven fabric or foam resin, optionally after aging, and then the discolored sections are removed by washing with water.
摘要:
The provision of beautiful colored titanium which is excellent in adhesion of the pure titanium or a titanium alloy with the base material, is excellent in photocatalytic activity, and further is excellent in design properties and a method of production of the same which is excellent in productivity and uses an anodic oxidation process is made the object. A titanium-based material having visible light response and excellent in photocatalytic activity characterized in that the material has pure titanium or titanium alloy as a base material, a thickness of a titanium oxide layer which is present on its surface is 0.1 μm to 5.0 μm in range, said titanium oxide layer contains anatase-type titanium dioxide and titanium bonded with hydroxy groups, and further said titanium oxide layer contains nitrogen and carbon respectively in 0.5 to 30 mass %.
摘要:
The provision of beautiful colored titanium which is excellent in adhesion of the pure titanium or a titanium alloy with the base material, is excellent in photocatalytic activity, and further is excellent in design properties and a method of production of the same which is excellent in productivity and uses an anodic oxidation process is made the object. A titanium-based material having visible light response and excellent in photocatalytic activity characterized in that the material has pure titanium or titanium alloy as a base material, a thickness of a titanium oxide layer which is present on its surface is 0.1 μm to 5.0 μm in range, said titanium oxide layer contains anatase-type titanium dioxide and titanium bonded with hydroxy groups, and further said titanium oxide layer contains nitrogen and carbon respectively in 0.5 to 30 mass %.
摘要:
Titanium resistant to discoloration in an atmospheric environment characterized by having an average carbon concentration of 14 at % or less in a range to a depth of 100 nm from the surface and having an oxide film of a thickness of 12 to 40 nm at its surface. Titanium resistant to discoloration in an atmospheric environment characterized in that, in X-ray diffraction of its surface, a ratio (X1/X2) of a (200) peak intensity X1 of TiC to a (110) peak intensity X2 of titanium is not more than 0.18 and by having an oxide film of a thickness of 12 to 40 nm at its surface.
摘要:
Titanium material less susceptible to discoloration and method for thereof are provided. Titanium materials less susceptible to discoloration in the atmosphere are obtainable by controlling the fluorine and carbon contents in the oxide film on the surface thereof and the thickness of the oxide film. Such titanium materials are obtainable by dissolving the surface thereof in an aqueous fluonitric acid solution with a nitric acid concentration of not higher than 80 g/l or heat-treating at between 300 and 900° C. in a vacuum or in an inert gas atmosphere of argon or helium after dissolving in the aqueous fluonitric acid solution.
摘要:
The present invention provides a polymer electrolyte fuel cell separator made of pure titanium or a titanium alloy superior in contact resistance with carbon paper and a method of production of the same, that is, a separator having a surface layer part to which conductive compound particles are affixed, characterized in that the surface oxide has a thickness of 3 to 15 nm in range, an average carbon concentration in a range from an outermost surface, including the oxide layer, to a depth of 100 nm is 0.02 to 6 at %, and the conductive compound particles have an average particle size of 0.01 to 20 μm. Further, the method of production of the present invention is characterized by forming, blast treating a surface of the formed article by particles comprised of conductive compound particles of an average particle size of 0.01 to 20 μm covering a surface of superhard core particles, impregnating it by a nitric acid aqueous solution of a concentration of 15 to 71 mass % and a temperature of 40 to 100° C. for 30 seconds to 180 minutes by spraying or dipping, then washing it.
摘要:
The present invention provides colored pure titanium or titanium alloy having low susceptibility to discoloration in an atmospheric environment exhibiting a superior resistance to discoloration even when the titanium is used in an environment of harsh acid rain such as a roof or wall material and free from deterioration of the aesthetic appearance over a long period of time, that is, colored pure titanium obtained by the anodic oxidation method, that is, colored pure titanium or titanium alloy having low susceptibility to discoloration in an atmospheric environment characterized by having an average phosphorus content in a range of 40 nm from a surface of a titanium oxide layer formed on the titanium surface of 5.5 atomic % or less and by having an average carbon concentration in a range of a depth of 100 nm from the titanium surface of 3 to 15 atomic %.
摘要:
The present invention provides a polymer electrolyte fuel cell separator made of pure titanium or a titanium alloy superior in contact resistance with carbon paper and a method of production of the same, that is, a separator having a surface layer part to which conductive compound particles are affixed, characterized in that the surface oxide has a thickness of 3 to 15 nm in range, an average carbon concentration in a range from an outermost surface, including the oxide layer, to a depth of 100 nm is 0.02 to 6 at %, and the conductive compound particles have an average particle size of 0.01 to 20 μm. Further, the method of production of the present invention is characterized by forming, blast treating a surface of the formed article by particles comprised of conductive compound particles of an average particle size of 0.01 to 20 μm covering a surface of superhard core particles, impregnating it by a nitric acid aqueous solution of a concentration of 15 to 71 mass % and a temperature of 40 to 100° C. for 30 seconds to 180 minutes by spraying or dipping, then washing it.
摘要:
The present invention provides colored pure titanium or titanium alloy having low susceptibility to discoloration in an atmospheric environment exhibiting a superior resistance to discoloration even when the titanium is used in an environment of harsh acid rain such as a roof or wall material and free from deterioration of the aesthetic appearance over a long period of time, that is, colored pure titanium obtained by the anodic oxidation method, that is, colored pure titanium or titanium alloy having low susceptibility to discoloration in an atmospheric environment characterized by having an average phosphorus content in a range of 40 nm from a surface of a titanium oxide layer formed on the titanium surface of 5.5 atomic % or less and by having an average carbon concentration in a range of a depth of 100 nm from the titanium surface of 3 to 15 atomic %.