摘要:
This invention concerns a method for forming a coating film on a metallic substrate by a multistage energization method at no less than two stages using an electrodeposition bath which comprises a water-based film-forming agent comprising zirconium compound and, as the base resin, an amino group-containing modified epoxy resin which is obtained through reaction of an epoxy resin with an amino group-containing compound, said epoxy resin having been obtained through reaction of a diepoxide compound, a bisphenol epoxy resin and bisphenols; whereby coated articles excelling in corrosion resistance are offered.
摘要:
This invention concerns a method for forming a coating film on a metallic substrate by a multistage energization method at no less than two stages using an electrodeposition bath which comprises a water-based film-forming agent comprising zirconium compound and, as the base resin, an amino group-containing modified epoxy resin which is obtained through reaction of an epoxy resin with an amino group-containing compound, said epoxy resin having been obtained through reaction of a diepoxide compound, a bisphenol epoxy resin and bisphenols; whereby coated articles excelling in corrosion resistance are offered.
摘要:
The present invention provides a cationic electrodeposition coating composition comprising: a specific amino group-containing modified epoxy resin (A); a blocked polyisocyanate curing agent (B); a water-soluble zirconium compound (C); and sulfamic acid, wherein the water-soluble zirconium compound (C) is present in an amount of 10 to 10,000 ppm, calculated as the mass of the elemental zirconium, relative to the mass of the cationic electrodeposition coating composition.
摘要:
The present invention provides a cationic electrodeposition coating composition comprising: a specific amino group-containing modified epoxy resin (A); a blocked polyisocyanate curing agent (B); a water-soluble zirconium compound (C); and sulfamic acid, wherein the water-soluble zirconium compound (C) is present in an amount of 10 to 10,000 ppm, calculated as the mass of the elemental zirconium, relative to the mass of the cationic electrodeposition coating composition.
摘要:
The present invention relates to a composite chemical conversion coating film containing a crystalline continuous coating film that is formed on a metal substrate. The present invention also relates to a process for forming a multiple layered coating film including (A) the first step of immersing an untreated metal substrate in an aqueous solution containing nitrate of a rare earth metal and forming a crystalline continuous coating film containing a rare earth metal compound with a deposition amount of 1 mg/m2 at lower limit and 110 mg/m2 at upper limit by cathode electrolysis and (B) the second step of coating an electrodeposition coating composition containing an organic acid or inorganic acid salt of a rare earth metal by cathode electrodeposition. According to the present invention, provided is a multiple layered coating film that forms extremely less amount of a composite chemical conversion coating film and an electrodeposition coating film in order in comparison with a pretreatment step and a cationic electrodeposition coating step by a conventional chemical coating solution and an electrodeposition coating composition; that is, a novel composite chemical conversion coating film with high economic efficiency and environmental conservation property is provided by expressing superior adhesion to a coating film and corrosion resistance equal to or more than a conventional step.
摘要翻译:本发明涉及一种复合化学转化膜,其含有在金属基材上形成的结晶连续涂膜。 本发明还涉及一种形成多层涂膜的方法,其包括(A)将未处理的金属基材浸渍在含有稀土金属的硝酸盐的水溶液中并形成含有稀土的结晶连续涂膜的第一步骤 金属化合物,其下限为1mg / m 2,阴极电解为上限为110mg / m 2,(B)涂布含有稀土类有机酸或无机酸盐的电沉积涂料组合物的第二工序 金属通过阴极电沉积。 根据本发明,提供了与通过常规化学涂布溶液的预处理步骤和阳离子电沉积涂布步骤相比,与复合化学转化涂膜和电沉积涂膜相比,形成极少量复合化学转化涂膜和电沉积涂膜的多层涂膜 和电沉积涂料组合物; 即通过表现出对涂膜的优异粘附性和等于或大于常规步骤的耐腐蚀性,提供了具有高经济效率和环保性能的新型复合化学转化膜。
摘要:
A composition for surface treatment of aluminium, aluminum alloy, magnesium or magnesium alloy and the treating solutions being diluted to the desired concentration are defined. A said composition of this invention containing (1) compound A containing at least one metal element selected from the group consisting of Hf(IV), Ti(IV) and Zr(IV), (2) fluorine containing compound of sufficient amount to make fluorine existed in the composition at least by 5 times of molarity to the total molarity of metal contained in above mentioned compound A, (3) at least one metal ion B selected from the group of alkaline earth metals, (4) at least one metal ion C selected from the group consisting of Al, Zn, Mg, Mn and Cu, and (5) nitric ion and the mol concentration of compound A is 0.1-50 mmol/L as metal element of Hf(IV), Ti(IV) and Zr(IV). The metal treated with the treating method applying the present invention solution has excellent resistance to various corrosive environments.
摘要翻译:定义了铝,铝合金,镁或镁合金的表面处理用组合物和稀释至所需浓度的处理溶液。 本发明的组合物含有(1)含有至少一种选自Hf(IV),Ti(IV)和Zr(IV)的金属元素的化合物A,(2)足够量的含氟化合物 在组合物中存在至少5倍摩尔浓度至上述化合物A中所含金属的总摩尔浓度,(3)至少一种选自碱土金属的金属离子B,(4)至少一种金属 离子C选自Al,Zn,Mg,Mn和Cu,和(5)硝酸离子,化合物A的摩尔浓度作为Hf(IV),Ti(IV)的金属元素为0.1-50mmol / L )和Zr(IV)。 应用本发明溶液的处理方法处理的金属具有优异的耐各种腐蚀环境的性能。
摘要:
This invention relates to a method for forming on a metal substrate a surface treating film excelling in corrosion resistance and stability of film-forming agent, by applying a film-forming agent thereto by a multistage electrification system comprising at least two stages.
摘要:
The present invention is the method for surface treatment of a metal material containing iron and/or zinc, containing component (A) and component (B); where (A) is a compound containing at least one metal element selected from the group consisting of Ti, Zr, Hf and Si, (B) is a compound containing fluorine as a supplying source of HF, wherein the ratio K=A/B between the total mole weight A of metal elements of Ti, Zr, Hf and Si in the compound of component (A) and the mole weight B which when the total fluorine atoms in the fluorine-containing compound of component (B) is converted to HF is within the range of 0.06≦K≦0.18, and the concentration of component (A) indicated by the total mole concentration of metal elements of Ti, Zr, Hf and Si is within the region of 0.05 to 100 m mol/L. To the treating solution for surface treatment, at least one compound containing at least one metal element selected from the group consisting of Ag, Al, Cu, Fe, Mn, Mg, Ni, Co and Zn can be blended. It is possible to form a surface-treated film which is superior in corrosion resistance after being coated on the surface of a metal containing iron or zinc from a solution which does not contain a harmful component to the environment.
摘要翻译:本发明是含有组分(A)和组分(B)的含铁和/或锌的金属材料的表面处理方法。 其中(A)是含有选自Ti,Zr,Hf和Si中的至少一种金属元素的化合物,(B)是含氟作为HF的供给源的化合物,其中K = A / B 在组分(A)的化合物中Ti,Zr,Hf和Si的金属元素的总摩尔量A与摩尔重量B之间,当组分(B)的含氟化合物中的总氟原子转化为 HF在0.06 <= K <= 0.18的范围内,Ti,Zr,Hf和Si的金属元素的总摩尔浓度所表示的成分(A)的浓度为0.05〜100μmol/ L. 对于用于表面处理的处理溶液,可以混合至少一种含有选自Ag,Al,Cu,Fe,Mn,Mg,Ni,Co和Zn中的至少一种金属元素的化合物。 可以在不含有有害成分的溶液与环境中涂布含铁或锌的金属的表面后,形成耐腐蚀性优异的表面处理膜。
摘要:
This invention relates to a method for forming on a metal substrate a surface treating film excelling in corrosion resistance and stability of film-forming agent, by applying a film-forming agent by a multistage electrification system comprising at least two stages.
摘要:
The present invention is to provide a method for forming a multi-layer coating film, which can combine a pre-treating step conducted for a metal substrate, before electrodeposition coating, and an electrodeposition coating step. The method comprises: a step of dipping a material to be coated in an aqueous coating composition comprising (A) a rare earth metal compound, (B) a base resin having a cationic group, and (C) a curing agent, wherein a content of the rare earth metal compound (A) in the aqueous coating composition is limited to specific range; a pre-treating step of applying a voltage of less than 50 V in the aqueous coating composition, wherein the material to be coated is used as a cathode; and an electrodeposition coating of applying a voltage of 50 to 450 V in the aqueous coating composition, wherein the material to be coated is used as a cathode.