High-temperature-resistant high-thermal-conductivity glue-rich epoxy glass silk powder mica tape and manufacturing method thereof

Abstract

The invention discloses a high-temperature-resistant high-thermal-conductivity glue-rich epoxy glass silk powder mica tape and a manufacturing method thereof. The high-temperature-resistant high-thermal-conductivity multi-glue epoxy glass silk powder mica tape is formed by compounding one or two layers of high-temperature-resistant high-thermal-conductivity glass silk cloth reinforcing materials, a high-temperature-resistant adhesive layer and a powder mica paper layer. The high-temperature-resistant high-thermal-conductivity insulating material developed by the invention enables the power generation manufacturing industry in China to be in the front of the world, and compared with the prior art, the high-temperature-resistant high-thermal-conductivity multi-glue epoxy glass fiber powder mica tape manufactured by the method disclosed by the invention has the advantages of good binding process performance, softness, fitness and no layering. According to the stator bar prepared from the high-temperature-resistant high-thermal-conductivity multi-glue epoxy glass silk powder mica tape, various technical indexes reach the foreign advanced level.

Description

technical field [0001] The invention relates to a method for manufacturing a high-temperature-resistant and high-thermal-conductivity multi-glue epoxy glass silk powder mica tape. Background technique [0002] Large and medium-sized generators are the source of power for national economic development. With the continuous increase of generator capacity, the heat resistance level of insulating materials has been continuously improved, from Class A (90°C) insulation in the 1950s to 1960s to Class B in the 1970s and 1980s. (130°C) insulation, and developed to F-class insulation (155°C) in the late 1980s. Every increase in the heat resistance level is a structural change of the insulating material, but the thermal conductivity of the insulating material has not improved. After the thermal conductivity of the main insulation of the stator winding is improved, on the basis of keeping the volume of the motor, the rated voltage and the temperature rise of the motor unchanged, the cap...

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Problems solved by technology

[0005] The purpose of the present invention is to improve its thermal conductivity and heat resistance in order to ensure the stability of the electrical properties of the main insulation of the motor stator bar, and to provide a method for manufacturing high-temperature-resistant and high-thermal-conductivity multi-glue epoxy glass silk powder mica tape. The reliability of the method is Well, it solves the problems of low electrical performance and poor wrapping process that have always existed in the research of high-temperature-resistant and high-thermal-conduction insulating materials in China.

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