Vacuum ellipsoidal coating roll type aluminum film coating device and its operation method

Abstract

The invention discloses a vacuum ellipsoidal coating roll type aluminum film coating device and its operation method. The vacuum ellipsoidal coating roll type aluminum film coating device comprises anellipsoidal coating roll, a flattening roll and a vacuum box. The ellipsoidal coating roll is mounted in the lower portion of the inside of the vacuum box; the flattening roll is mounted inside the vacuum box and arranged at the right position above the the ellipsoidal coating roll; the ellipsoidal coating roll is ellipsoidal, and provided with an internal cavity; a coolant injection inlet is arranged at one side of the cavity of the ellipsoidal coating roll, and low-temperature coolant is injected into the cavity of the ellipsoidal coating roll through the coolant injection inlet; a coolantinjection inlet screw plug is mounted at the coolant injection inlet; both ends of the ellipsoidal coating roll are flat surfaces, and ellipsoidal coating roll bearings are respectively mounted at twoends of the ellipsoidal coating roll in interference manner. The coating film with middle thick and two edges thin can be produced through the ellipsoidal coating roll, and is applied to circumstances having no requirements on uniform thickness due to the fact that edges of the coating film are always used for packaging, and accordingly production cost can be reduced.

Description

Technical field [0001] The invention belongs to the technical field of vacuum coating, and specifically relates to an ellipsoidal coating roller, and more specifically, a vacuum ellipsoidal coating roller aluminum coating device and its working mode. Background technique [0002] Vacuum coating is a technology that produces thin film materials by physical methods. In the vacuum chamber, the atoms of the material are separated from the heating source and hit the surface of the object to be plated. This technology was first used to produce optical lenses, such as nautical telescope lenses, etc.; later extended to other functional films, record aluminum plating, decorative coating and material surface modification, such as imitation gold plating on watch casings, mechanical tool coating, and changing processing Red hard. There are three forms of vacuum coating, namely evaporation coating, sputtering coating and ion plating. The vacuum evaporation coating method was first proposed ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a vacuum ellipsoidal coating roller aluminum coating device and its working method, to improve the disadvantages of the thickness of the coating film at the corners sealed on both sides being the same as the thickness of the coating film at the center during production, resulting in industrial waste and increased production costs.

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