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Double-face simultaneous difference coating process method for polyimide film

A technology of polyimide film and process method, which is applied in the direction of pretreatment surface, device for coating liquid on surface, coating, etc., can solve the problems of difficult to balance and stable product quality, high content of operation technology, and many control links. , to achieve the effect of easy product quality, shortened process flow, and fewer control links

Inactive Publication Date: 2017-05-31
东营欣邦电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shortcomings of the current technological process are: the thickness of the polyimide film film is affected by the pressure roller spacing, film tension, line speed and glue viscosity, etc., the operation technology content is high, and there are many control links , the difficulty is high, and the product quality is difficult to be balanced and stable

Method used

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  • Double-face simultaneous difference coating process method for polyimide film

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Embodiment Construction

[0016] In conjunction with the accompanying drawings, the present invention is described in further detail below:

[0017] Such as figure 1 As shown, the present invention uses two equal-diameter, parallel, horizontally juxtaposed, adjustable distance between a pair of pressure rollers 1, the two ends of the upper angle are blocked by the rubber groove baffle plate 5, and the polyimide film 2 that passes vertically Divide in the middle to form thick glue groove 3 and thin glue groove 4, and set tangential turning roller 6 on the vertical line tangentially below the pressure roller 1 on the side of thin glue groove 4, and the polyimide film 2 after double-sided gluing After the turning roller 6 changes direction, it passes through the drying box 7 diagonally.

[0018] During production, the polyimide film 2 is threaded through the whole process of winding, and the concentration of the polyammonium ethylene propylene glue solution is adjusted according to the thickness ratio of...

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Abstract

The invention discloses a double-face simultaneous difference coating process method for a polyimide film, and belongs to insulating materials for machining of high-frequency electromagnetic wires. The process method is characterized in that polyamine ethylene propylene thick glue and diluted glue are poured into two side included angles formed by two pressure rolls and the polyimide film perpendicularly intersected with the two pressure rolls, thick glue face coating and thin glue face coating are completed at the same time, and the polyimide film obliquely passes through the diagonal of a drying box. Compared with the prior art, the double-face simultaneous difference coating process method has the characteristics that the process procedure is short, the coating thickness and the difference of the two faces are achieved through the distance between the pressure rolls and the concentration of the glue solutions at one control point, and the space for the polyimide film to stay in the drying box is large; and meanwhile, the process method has the remarkable advantages of being easy to operate and control, high in production efficiency, uniform in gluing, capable of saving energy and the like.

Description

[0001] 1. Technical field [0002] The invention relates to the insulation processing of electromagnetic wires, in particular to a polyimide film double-sided simultaneous differential glue coating process. [0003] 2. Background technology [0004] The manufacture of high-power, high-voltage large-scale electromechanical equipment requires high-frequency electromagnetic wires with stronger insulation properties. The insulating layer of the current high-frequency electromagnetic wire is mostly realized by wrapping polyimide film with polyammonium ethylene propylene differentially coated on both sides, and sintering to shape it. The production of polyamide film under the current technology is mostly completed according to the following process flow method: the polyimide film vertically passes between two roller shafts called a pressure roller and a coating roller with a certain tension, and is coated and hanged. Polyammonium ethylene propylene thick glue within the angle formed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C1/08B05C1/12B05C11/02B05C13/02B05D3/02
CPCB05C1/0813B05C1/0869B05C1/0882B05C1/12B05C11/02B05C13/02B05D3/0254
Inventor 苟秀防
Owner 东营欣邦电子科技有限公司
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