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COATED ALUMINUM ALLOY PLATE FOR RECORDING MEDIUM CASSETTE SHUTTER AND RECORDING MEDIUM CASSETTE SHUTTER CONSISTING OF THIS COATED ALUMINUM ALLOY PLATE
COATED ALUMINUM ALLOY PLATE FOR RECORDING MEDIUM CASSETTE SHUTTER AND RECORDING MEDIUM CASSETTE SHUTTER CONSISTING OF THIS COATED ALUMINUM ALLOY PLATE
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机译:用于记录中型铝壳快门的涂层铝合金板和由该涂层铝制铝壳合金录制的中型铝合金快门
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摘要
PURPOSE: To obtain a coated aluminum alloy plate for shutter for recording medium cassette which is free from tacky adhesion to polyethylen recording film even if this film is preserved over a long period of time under a pressure in a housing case of a recording medium cassette. ;CONSTITUTION: Solid particles are dispersed into the coating film of the aluminum alloy plate formed with this coating film and the surface roughness of the coating film is ≥0.2μm in center line average height Ra and ≥1.0μm Rp. A range of 0.2 to 1.0μm Ra and 1.0 to 10.0μm Rp is more preferable. An Al-Mg alloy plate contg. 3 to 6% Mg as an essential alloy component is adequately used as the aluminum alloy plate.;COPYRIGHT: (C)1996,JPO
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