摘要:
A cathode-ray tube display unit provided with a high voltage transformer for supplying high voltage to an anode of a cathode-ray tube, a deflection yoke having a horizontal deflection coil and a vertical deflection coil, and an interior conductive coating formed on the inside of a glass vessel of the cathode-ray tube, in which there is provided an electrode in the conductive coating form formed on an external wall face of a glass vessel at a funnel portion being electrically separated from an exterior graphite coating formed on an external surface of the cathode-ray tube and connected to ground, and a circuit for applying reverse pulse voltage V.sub.1 that satisfies (V.sub.0 .times.C.sub.0)>(V.sub.1 .times.C.sub.1) to the electrode in the conductive coating form is included. Where, it is assumed that flyback pulse voltage supplied to the deflection yoke means is V.sub.0, reverse pulse voltage having a polarity reverse to that of voltage generated in the interior conductive coating is V.sub.1, electrostatic capacity between the horizontal deflection coil and the interior conductive coating is C.sub.0, and electrostatic capacity between the electrode in the conductive coating form and the interior conductive coating is C.sub.1.
摘要:
A metal article whose surface is coated with a coating composition composed of (A) a silane coupling agent component, (B) a polymer component having a specific chemical structure, and (C) a wax component provides a chromium-free surface treated metal material with superior corrosion resistance, paintability, fingerprint resistance, and workability.
摘要:
A hexavalent chromium-free surface treating agent for Sn- or Al-based coated steel sheet, comprising a trivalent chromium compound (A), a water-dispersible silica (B), a lubricity imparting component (C) made of one or more waxes of polyolefin wax, fluorine-containing wax and paraffin wax, and water, a mass ratio on the solid content basis of the water-dispersible silica (B) to the lubricity imparting component (C), (B)/(C), being within a range from 5/95 to 95/5.
摘要:
A surface-treating composition which is a treating liquid containing no ingredients harmful to the environment; such a treating liquid has been difficult to obtain with any conventional technique. The composition enables a coating film having excellent corrosion resistance after coating to be deposited through surface treatment on a surface of a metallic material, e.g., an iron-based metallic material. The composition, which is for the surface treatment of a metal comprising iron and/or zinc, comprises the following ingredients (A), (B), and (C): (A) a compound containing at least one element selected from the group consisting of titanium, zirconium, hafnium, and silicon; (B) a compound containing yttrium and/or a lanthanide element; and (C) nitric acid and/or a nitric acid compound. In the composition, the ratio of the total mass concentration B of the yttrium and/or lanthanide element in the ingredient (B) to the total mass concentration A of the element(s) in the ingredient (A), K1=B/A, is 0.05≦K1≦50 and the ratio of the total mass concentration C of nitrogen atoms in the ingredient (C) in terms of NO3 concentration to the total mass concentration A, K2=C/A, is 0.01≦K2≦200.
摘要翻译:表面处理组合物,其为不含对环境有害的成分的处理液; 用常规技术难以获得这种处理液。 该组合物能够通过表面处理在金属材料例如铁基金属材料的表面上沉积涂覆后具有优异耐腐蚀性的涂膜。 用于表面处理包含铁和/或锌的金属的组合物包含以下成分(A),(B)和(C):(A)含有至少一种选自以下的元素的化合物 由钛,锆,铪和硅组成; (B)含有钇和/或镧系元素的化合物; 和(C)硝酸和/或硝酸化合物。 在组合物中,成分(B)中的钇和/或镧系元素的总质量浓度B与成分(A)中元素的总质量浓度A的比例K1 = B / A 为0.05 <= K1 <= 50,成分(C)中氮原子的总质量浓度C(以NO 3 3浓度计)与总质量浓度A,K2 = C / A为0.01 <= K2 <= 200。