Production method of single-side reinforced small-glue mica tap by using polyester non-woven fabric

A technology of polyester non-woven fabric and less glue mica tape, which is applied in the direction of chemical instruments and methods, adhesives, layered products, etc., can solve the problems that cannot meet the requirements of mechanical strength and low mechanical strength of mica, and achieve the realization of motor without Air-gap insulation, ensuring the aging life of electric heating, and reducing the cost of the motor

Active Publication Date: 2013-02-13
JIANGSU BINGCHENG HYDROGEN ENERGY TECH CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Mica tape is the most irreplaceable and critical insulating material for motors, especially large and high-voltage motors. However, the mechanical strength of mica is too low to meet the requirements for mechanical strength in the motor manufacturing process and in actual operation of the motor. Reinforcing materials must be used. be enhanced

Method used

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  • Production method of single-side reinforced small-glue mica tap by using polyester non-woven fabric

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Experimental program
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Embodiment Construction

[0013] A kind of production method of polyester non-woven one-side reinforced mica tape with little glue, comprising the following steps:

[0014] 1. Impregnation of polyester non-woven fabric: Unroll the polyester non-woven fabric with a thickness of 0.025 mm, and pass through the glue tank equipped with impregnated adhesive (epoxy type or polyester epoxy type), and the solid content of the glue is calculated according to the amount of glue. The glue content of the mica tape is required to be controlled at 20-30%wt.

[0015] 2. Composite: Unroll the 0.05mm thick mica paper and composite it on the polyester non-woven fabric coated with adhesive.

[0016] 3. Baking: Baking the mica paper and the polyester non-woven fabric coated with the adhesive in step 2 through an oven. The temperature of the oven is gradually increased from room temperature to 40° C. to 80° C., and baked for 3 to 8 minutes.

[0017] 4. Cool to make blanks; after leaving the oven, cool at room temperature f...

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Abstract

The invention relates to a production method of a single-side reinforced small-glue mica tap by using a polyester non-woven fabric. The production method comprises the following steps: 1) impregnating the polyester non-woven fabric; 2) complexing; 3) roasting; 4) cooling so as to prepare a blank; and 5) cutting and rolling. The polyester non-woven fabric single-side reinforced small-glue mica tapprepared by the method has the advantages of good flexibility, good bandage process and high air permeability, can be used for insulation of a stator coil of a wind driven generator with the capacityof 2 megawatts and less than 2 megawatts and can also be used for insulation of a stator coil of a high-voltage stator coil with a voltage level of 3000V and 6000V.

Description

technical field [0001] The invention belongs to the technical field of mica tape manufacture, and relates to a production process of a single-sided reinforced mica tape with less glue produced by using non-woven fabric as a reinforcing material. technical background [0002] Mica tape is the most irreplaceable and critical insulating material for motors, especially large and high-voltage motors. However, the mechanical strength of mica is too low to meet the requirements for mechanical strength in the motor manufacturing process and in actual operation of the motor. Reinforcing materials must be used. be enhanced. At present, the reinforcing materials used in national standards, industry standards, and enterprise standards of various mica tape manufacturers are all alkali-free glass fiber cloth, insulating paper, and plastic film for electricians. In order to make the less-adhesive mica tape have better performance and reduce costs, according to some specific uses of the le...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H01B19/00B32B37/12B32B38/08B32B38/16C09J163/00C09J7/04
Inventor朱艾成朱浩刘发喜郭振报崔拥方
OwnerJIANGSU BINGCHENG HYDROGEN ENERGY TECH CO LTD