Vacuum infusion process of large winding in soft mold

A vacuum impregnation and coil technology, applied in coil manufacturing and other directions, to achieve the effect of eliminating internal stress, solving uneven fiber density, and reducing processing accuracy requirements

Inactive Publication Date: 2004-01-21
INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide people with a large-scale coil soft mold vacuum impregnation process that uses vacuum bag technology to solve the sealing problem of the mold, greatly simplifies the mold design, reduces machining requirements, and reduces manufacturing costs.

Method used

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  • Vacuum infusion process of large winding in soft mold
  • Vacuum infusion process of large winding in soft mold
  • Vacuum infusion process of large winding in soft mold

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Embodiment Construction

[0025] see figure 1 , 2 , The vacuum impregnation process of the large coil soft mold is to first install the deflector 1, the injection port 2 and the plastic discharge port 3. The glue injection port is installed on the lower deflector, the glue outlet is installed on the upper deflector, and the upper and lower deflectors are respectively close to the upper and lower sides of the coil, and are fixed by half-folded wrapping of tetrafluoroethylene tape. The second step is to combine the deflector with the coil, and to wrap the self-dissolving sealing tape 5, that is, to wrap one and a half layers of the self-dissolving silicon rubber sealing tape on the tetrafluoroethylene tape. The third step is to brush liquid vulcanized silicone rubber on the outside of the self-dissolving sealing tape to form a sealing cavity. The fourth step is to vacuumize and repair leaks, that is, after the liquid vulcanized silicone rubber is cured, close the glue injection port, and vacuumize the ...

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Abstract

The vacuum impregnation process of large winding in soft mold features the technological process comprising mounting guiding board, glue pouring gate and riser; combining guiding board and winding and coating with self-dissolving sealing belt; painting liquid sulfurized silicone rubber to form sealed cavity; vacuum and leak repairing; mounting outer winding mold, vacuum pumping in winding, depositing sulfurized silicone rubber into between the self-dissolving sealing belt and the outer winding mold and curing to form; winding electrical heating belt outside the outer mold and connecting temperature control instrument; winding heat insulating layer outside the electrical heating belt; and connecting vacuum system to the riser and glue feeding system to the glue pouring gate. The present invention utilizes vacuum bag for sealing mold, and has simple mold design and lowered cost.

Description

technical field [0001] The invention relates to a vacuum impregnation mold, in particular to a vacuum impregnation process for a large coil soft mold. Background technique [0002] Large superconducting coils require vacuum pressure impregnation with epoxy to enhance the integrity of the entire coil. This requires the design of vacuum impregnation molds. For large coils with a diameter of more than 7 meters, the machining of vacuum components is very difficult and the manufacturing cost is also high. Contents of the invention [0003] The purpose of the present invention is to provide people with a large-scale coil soft mold vacuum impregnation process that uses vacuum bag technology to solve the sealing problem of the mold, and greatly simplifies the mold design, reduces machining requirements, and reduces manufacturing costs. [0004] The present invention is carried out according to the following technical process: [0005] A. Install deflectors, injection ports and o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/04H01F41/12
Inventor 潘皖江
Owner INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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