Oil shielding device for evaporation

Abstract

The invention provides an oil shielding device for evaporation. The device comprises an oil gas groove [3] divided into an upper chamber [2] and a lower chamber [6], solenoid valves connecting the upper chamber [2] and the lower chamber [6] and a heating pipe [5] heating the upper chamber [2] and the lower chamber [6] respectively, wherein the oil gas groove [3] is filled with oil; and the heating pipe [5] heating the lower chamber [6] is arranged outside the lower chamber [6] and heats the oil in the lower chamber [6] indirectly. The structure has the beneficial effects of greatly lowering the use cost and improving the product quality.

Description

technical field [0001] The invention relates to an oil shielding device for vapor deposition of capacitor metallized film. Background technique [0002] In the production of capacitor metallized film coating, the oil shielding device adopted includes an oil-gas tank divided into an upper chamber and a lower chamber, a solenoid valve connecting the upper chamber and the lower chamber, and heating pipes for heating the upper chamber and the lower chamber respectively. It is divided into upper and lower chambers to be heated separately. The heating of the lower chamber mainly depends on the direct heating of the heat pipe placed in the oil in the lower chamber. Oil, the two solenoids cannot be controlled individually in use. There are mainly the following problems in use: 1. Because the lower chamber adopts the direct heating method of the heat pipe, the shielding oil ages quickly, resulting in increased evaporation costs. 2. The oil flow control at both ends is adopted, so th...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of rapid oil aging, high use cost, uncontrolled oil flow and affecting product quality in the existing oil shielding device

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