Stirring and sealing device for preparing epoxy-inorganic filler composite material and operation method

Abstract

According to the stirring and sealing device for preparing the epoxy-inorganic filler composite material and the operation method, by arranging a stirring and sealing mechanism, when a stirrer fixed to a dynamic sealing structure conducts stirring operation, a dynamic sealing spring in the dynamic sealing structure extrudes a dynamic sealing rubber ring upwards under the action of rotating torque, and the sealing effect in the rotating process is achieved; the interior of the constant-temperature drying box is subjected to air extraction through the air extraction pump to generate vacuum, so that air in the epoxy-inorganic filler composite material is continuously extracted in the stirring process, meanwhile, constant-temperature drying in the stirring process is kept, and generation of bubbles in the operation process is reduced and avoided; the stirred epoxy-inorganic filler composite material is directly poured into a mold under the action of gravity in a vacuum environment; the device is integrally arranged, the time of the process of preparing the epoxy-inorganic filler composite material can be greatly shortened, meanwhile, the whole process is sealed in a vacuum mode, and the material preparation yield is high.

Description

Technical field [0001] The present invention belongs to the preparation of the insulating material, and therefore, the present invention relates to an epoxy-inorganic filler composite material to prepare a stirring sealing device and a method of operation. [0002] technical background [0003] With the rapid development of my country's power equipment, the demand for transmission and electrical power generation is greatly improved, and the insulation requirements are further strengthened. The epoxy resin has a wide range of applications in equipment insulation, and epoxy-inorganic filler composite materials in manufacturing technology Aspects have strict requirements, high-quality high efficiency epoxy-inorganic filler composite materials manufacturing equipment and technology have become a short plate that restricts the processing of insulating equipment. [0004] Traditional epoxy-inorganic filler material processing devices mainly in vacuo castings, the agitation process still...

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Problems solved by technology

[0004] The traditional epoxy-inorganic filler material processing and preparation device is mainly based on vacuum pouring, and a large number of air bubbles will still be generated during the stirring process, resulting in an increase in the time of vacuum pouring. At the same time, considering the difference between dynamic mixing and static mixing, epoxy- If the inorganic filler is left to stand for too long before the curing process begins, the viscosity of the material will increase, and the air bubbles inside the material will be difficult to get rid of. After pouring, pores or shrinkage cavities will easily appear on the surface of the sprue or the metal mold, and incomplete removal during the mixing process. The gas process will cause the moisture, air and volatile substances inside the mixture to be heated and the gas generated will be sealed inside the casting, resulting in pores

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