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Method and apparatus for coating hollow containers through plasma- assisted deposition of an inorganic substance
Method and apparatus for coating hollow containers through plasma- assisted deposition of an inorganic substance
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机译:通过无机物质的等离子体辅助沉积来涂覆中空容器的方法和设备
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摘要
A plasma assisted deposition of a very thin inner surface coating inside a plastic or metal container is achieved using insoluble, inert, inorganic substances such as silica, or insoluble metal oxides, or by using mixtures of substances, for example of metals, metal oxides, metal salts and carbon and/or organic radicals, so as to form a flexible structure or lattice, or by using different layers of such structures. It involves locating the container in an evacuated enclosure, placing a vaporizer containing inert inorganic material of a predetermined constituency inside the container, generating a vapor of said material, forming a plasma of said vapor, and depositing a relatively thin coating of said material over a predetermined area of an inside surface of said container, whereby the high temperature of the particles of said coating penetrate said surface due to their heat energy while causing no overall rise in surface temperature because of the low mass flow.
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