Method for impregnating epoxy glass fiber yarn with epoxy resin

Abstract

The present invention provides a method for impregnating epoxy glass fiber yarn with epoxy resin. The method for impregnating epoxy glass fiber yarn with epoxy resin includes the steps of injecting epoxy resin with sufficient quantity in a glue groove, mixing evenly, placing dry yarn into the glue groove, closing a tank cover and heating inside the tank, after reaching to a specified temperature, keeping for a specific time, starting an vacuum pump for vacuumizing inside an vacuum tank, after working for a certain time at the specified vacuum degree, turning off the vacuum pump for the vacuum breaking inside the vacuum tank, opening the tank cover and pulling out the glue groove, taking the glass yarn out of the glue groove and hanging at a glue-dipping placement table, in the still standing process, collecting the excess epoxy resin on a glass yarn roll tape to the inside of a collecting tray below a yarn roll, finally collecting the residual glue on the collecting tray to a glue receiving barrel at the bottom, after still standing, completing the impregnation of the epoxy glass fiber yarn with epoxy resin. The method for impregnating the epoxy glass fiber yarn with epoxy resin can avoid the pollution of yarn roll to environment and equipment due to the large-quantity glue contained in the yarn roll, and can further avoid the binding of yarn shares. In addition, the yarn can not be broken during the using process.

Description

[0001] 【Technical field】 [0002] The invention belongs to the dry-type electric equipment insulation manufacturing technology, and relates to a method for impregnating epoxy glass fiber yarn with epoxy resin. [0003] 【Background technique】 [0004] At present, domestic reactor manufacturers use two technologies for the manufacture of impregnated epoxy glass fiber yarn (hereinafter referred to as epoxy yarn): 1. Pass epoxy glass fiber yarn (hereinafter referred to as dry yarn) through a The dipping tank is directly wound onto the product; 2. After the dry yarn is fully impregnated through the professional dipping equipment, it is received on the yarn release tray, and after several hours of placement, the impregnated dipped yarn is wound onto the product . [0005] Both of the above techniques have significant drawbacks: [0006] The first type: when the dry yarn is passed through the dipping tank equipped with epoxy resin, the amount of glue on the yarn body is relatively l...

AI Technical Summary

Problems solved by technology

[0006] The first type: when the dry yarn is passed through the dipping tank equipped with epoxy resin, the amount of glue on the yarn body is relatively large, and the remaining glue will drip on the production site, causing environmental pollution; The rotation of the machine will cause the remaining glue to drop on the production equipment, causing equipment pollution and reducing the service life of the equipment

Time-consuming and labor-intensive when dealing with site contamination and equipment contamination

[0007] The second type: when the dry yarn is sent to the yarn delivery tray through the dipping equipment, the yarn strands will be bonded together, which will cause the yarn strands to break during use

During the yarn laying process, the dipped yarn may not be used because the yarn end cannot be found. If things go on like this, the waste of materials will be huge

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