摘要:
A method of producing a hot-dip galvanized steel sheet includes applying, to a hot-dip galvanized steel sheet having a Ra of 0.5 to 2.0 μm and a PPI of 150 or more, a predetermined surface treatment agent, i.e., a surface treatment agent containing a specified resin compound, a specified urethane resin having cationy, a specified silane coupling agent having a functional group, a specified organic Ti chelate compound, and a tetravalent vanadyl compound at a specified ratio; and drying the surface treatment agent at a ultimate sheet temperature of 50° C. to 180° C. to form a surface treatment coating film with a coating weight of 0.2 to 1.0 g/m2 on the surface of the steel sheet.
摘要翻译:一种热浸镀锌钢板的制造方法,其特征在于,在Ra为0.5〜2.0μm,PPI为150以上的热镀锌钢板上涂布预定的表面处理剂,即表面处理剂 含有特定的树脂化合物,具有阳离子性的规定的聚氨酯树脂,具有官能团的规定的硅烷偶联剂,规定的有机钛螯合物和四价氧钒基化合物, 并将表面处理剂在50℃至180℃的最终板温度下干燥,以在钢板表面上形成涂布重量为0.2至1.0g / m 2的表面处理涂膜。
摘要:
A method of producing a hot-dip galvanized steel sheet includes applying, to a hot-dip galvanized steel sheet having a Ra of 0.5 to 2.0 μm and a PPI of 150 or more, a predetermined surface treatment agent, i.e., a surface treatment agent containing a specified resin compound, a specified urethane resin having cationy, a specified silane coupling agent having a functional group, a specified organic Ti chelate compound, and a tetravalent vanadyl compound at a specified ratio; and drying the surface treatment agent at a ultimate sheet temperature of 50° C. to 180° C. to form a surface treatment coating film with a coating weight of 0.2 to 1.0 g/m2 on the surface of the steel sheet.
摘要翻译:一种热浸镀锌钢板的制造方法,其特征在于,在Ra为0.5〜2.0μm,PPI为150以上的热浸镀锌钢板上涂布预定的表面处理剂,即表面处理剂 含有特定的树脂化合物,具有阳离子性的规定的聚氨酯树脂,具有官能团的规定的硅烷偶联剂,规定的有机钛螯合物和四价氧钒基化合物, 并将表面处理剂在50℃至180℃的最终板温度下干燥,以在钢板表面上形成涂布重量为0.2至1.0g / m 2的表面处理涂膜。
摘要:
A surface-treated steel sheet is disclosed, including a zinc based plated steel sheet having thereon a surface-treated film containing titanium, nickel, aluminum and fluorine and having a film thickness of from 0.05 to 1.0 μm, the surface-treated film having a titanium deposition amount of from 0.01 to 0.5 g/m2 and containing from 0.01 to 5 parts by mass of nickel, from 0.1 to 25 parts by mass of aluminum and from 1 to 500 parts by mass of fluorine relative to 100 parts by mass of titanium. This surface-treated steel sheet does not contain hexavalent chromium in the film thereof at all and has excellent heat discoloration resistance, corrosion resistance and resistance to blackening.
摘要翻译:公开了一种经表面处理的钢板,其包括其上具有含有钛,镍,铝和氟的表面处理膜并且膜厚度为0.05至1.0μm的锌基电镀钢板,表面处理膜具有 钛沉积量为0.01〜0.5g / m 2,含有0.01〜5质量份的镍,0.1〜25质量份的铝和1〜500质量份的氟,相对于100质量份的钛 。 该表面处理钢板根本不含有六价铬,耐热变色性,耐腐蚀性和耐黑变性优异。
摘要:
An electrical steel sheet with an insulation coating excellent in punchability, coating adhesion property and coating film property after annealing, even without containing any chromium compound in the insulation coating. The insulation coating is formed by applying a surface-treatment agent to at least one side of the electrical steel sheet and drying the surface-treatment agent. The surface-treatment agent contains trialkoxysilane and/or dialkoxysilane (A) in which a substituent bound to Si is constituted only by at least one non-reactive substituent selected from the group consisting of hydrogen, an alkyl group, and a phenyl group; and a silane coupling agent (B), at a mass ratio (A/B) of 0.05 to 1.0.
摘要:
The present invention provides a chromium-free surface treatment agent, comprising: a resin compound having a specific bisphenol skeleton; cationic urethane resin emulsion; silane coupling agent; an organic titanium chelate compound; a quadrivalent vanadyl compound; a molybdic acid compound; and water, wherein these components are blended at predetermined ratios such that pH value of the surface treatment agent is in the range of 4 to 5. The one-pack type chromium-free surface treatment agent of the present invention exhibits good stability during storage and is capable of forming on a metal material surface a coating film excellent in corrosion resistance at a bending-processed portion of a steel sheet, solvent resistance and paintability after alkali degreasing.
摘要:
A surface-treated steel sheet is disclosed, including a zinc based plated steel sheet having thereon a surface-treated film containing titanium, nickel, aluminum and fluorine and having a film thickness of from 0.05 to 1.0 μm, the surface-treated film having a titanium deposition amount of from 0.01 to 0.5 g/m2 and containing from 0.01 to 5 parts by mass of nickel, from 0.1 to 25 parts by mass of aluminum and from 1 to 500 parts by mass of fluorine relative to 100 parts by mass of titanium. This surface-treated steel sheet does not contain hexavalent chromium in the film thereof at all and has excellent heat discoloration resistance, corrosion resistance and resistance to blackening.
摘要翻译:公开了一种经表面处理的钢板,其包括其上具有含有钛,镍,铝和氟的表面处理膜并且膜厚度为0.05至1.0μm的锌基电镀钢板,表面处理膜具有 钛沉积量为0.01〜0.5g / m 2,含有0.01〜5质量份的镍,0.1〜25质量份的铝和1〜500质量份的氟 相对于100质量份的钛。 该表面处理钢板根本不含有六价铬,耐热变色性,耐腐蚀性和耐黑变性优异。
摘要:
The present invention provides a chromium-free surface treatment agent, comprising: a resin compound having a specific bisphenol skeleton; cationic urethane resin emulsion; silane coupling agent; an organic titanium chelate compound; a quadrivalent vanadyl compound; a molybdic acid compound; and water, wherein these components are blended at predetermined ratios such that pH value of the surface treatment agent is in the range of 4 to 5. The one-pack type chromium-free surface treatment agent of the present invention exhibits good stability during storage and is capable of forming on a metal material surface a coating film excellent in corrosion resistance at a bending-processed portion of a steel sheet, solvent resistance and paintability after alkali degreasing.
摘要:
A method for making a phosphate-treated galvanized steel sheet, including forming a phosphate film on the surface of a galvanized layer of a galvanized steel sheet using a phosphate treatment solution containing Zn2+ and Mg2+ so as to satisfy 2.0
摘要:
A coated steel sheet that has excellent bending workability, press formability, film adhesiveness after processing, solvent resistance, chemical resistance, stain resistance, weather resistance, electrical conductivity, and corrosion resistance, good surface appearance, and sufficient film hardness is provided. The coated steel sheet is produced by successively forming a galvanized layer and a chemical conversion coating free from chromium on both faces of a steel sheet, and forming a monolayer film on the chemical conversion coating at one face of the steel sheet. The monolayer film contains a polyester resin cured with a cross-linker and resin particles. The resin particles have an average particle size in the range of 3 to 40 μm, a glass transition temperature in the range of 70° C. to 200° C., and hardness higher than that of the polyester resin.
摘要:
A zinc and zinc-alloy hot-dip-coated steel sheet and an alloyed zinc and zinc-alloy hot-dip-coated steel sheet, and a method for manufacturing these steel sheets, which steel sheets are used for automobiles. A zinc and zinc-alloy hot-dip-coated steel sheet which has oxides of readily oxidizable elements just under a coated layer and which shows a decreased number of bare spots and excellent coating adhesion. According to the method, the temperature for coiling during hot rolling is set to not less than 600.degree. C. and the cooling is conducted at a slow-cooling rate so that the-oxides remain after the following steps.