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High-temperature and high-strength insulating tube and manufacturing method thereof

A manufacturing method and insulating tube technology, which is applied in fuse manufacturing, electrical components, circuits, etc., can solve the problems of low adhesion between resin glue and insulating materials, poor moisture resistance and compression resilience of semi-finished products, and low Tg value of finished products. , to achieve better mechanical impact performance, stable heat release, and improved dispersion

Inactive Publication Date: 2012-01-25
太仓市华强玻璃钢五金厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the glue formula on the market, the resin glue consists of 100 parts of modified epoxy, 85 parts of anhydride curing agent, 25 parts of toughening agent and 1 part of accelerator by weight and number of parts. During the winding process, the resin glue and The adhesion of insulating materials is low, and the moisture resistance and compression resilience of uncured semi-finished products are poor. If pigments are added to the resin glue, the dispersibility of the pigments is poor, and the T g value of the finished product is low and the strength is low. Poor yellowing resistance

Method used

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  • High-temperature and high-strength insulating tube and manufacturing method thereof
  • High-temperature and high-strength insulating tube and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] First, the resin glue is made of 100 parts of high Tg and low viscosity modified epoxy, 82 parts of anhydride curing agent, 2 parts of accelerator, and 5 parts of silane coupling agent in the glass fiber by weight and number. Stir well, then pour into the glue tank.

[0019] Then wind the glass fiber passing through the glue tank on the mold at a certain angle, and run back and forth until it reaches the size.

[0020] After the winding is completed, it can be put into the oven, then adjust the temperature control and time control regulator for the first curing, adjust the temperature to 98°C and keep it for 55 minutes, then perform the second curing, adjust the temperature to 117°C and keep it at 118°C Minutes, the third curing is to adjust the temperature to 195 ℃ and keep it for 298 minutes.

[0021] After the mold is cooled, the high-performance insulating tube can be removed.

Embodiment 2

[0023] First, the resin glue is made of 100 parts of high Tg and low viscosity modified epoxy, 84 parts of anhydride curing agent, 2 parts of accelerator, and 5 parts of silane coupling agent in the glass fiber by weight and number. Stir well, then pour into the glue tank. Then wind the glass fiber passing through the glue tank on the mold at a certain angle, and run back and forth until it reaches the size.

[0024] After the winding is completed, it can be put into the oven, then adjust the temperature control and time control regulator for the first curing, adjust the temperature to 100°C and keep it for 60 minutes, then perform the second curing, then adjust the temperature to 120°C and keep it 119 minutes, the third curing is to adjust the temperature to 200°C and keep it for 300 minutes.

[0025] After the mold is cooled, the high-performance insulating tube can be removed.

[0026] The invention provides a high-temperature-resistant and high-strength insulating tube a...

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Abstract

The invention discloses a high-temperature and high-strength insulating tube and a manufacturing method thereof. The manufacturing method comprises the following steps of: firstly, soaking a resin adhesive comprising the following components in parts by weight:100 parts of modified epoxy, 80-85 parts of anhydride curing agent, 2 parts of accelerator and 5 parts of silane coupling agent into glass fiber for sufficiently stirring; pouring a soaked insulating material into an adhesive chute; then, winding the soaked insulating material on a mould according to an angle corresponding to the requirement, and placing into an oven after the winding is completed; and adjusting a temperature control and time control adjuster for curing for the first time; curing for the second time after the curing for the first time is ended; curing for the third time after the curing for the second time is ended; and obtaining the insulating tube when the mould is cooled after the curing for the third time is ended. The method can be used for improving the ductility, the ageing resistance, the cold and hot impact resistance and the mechanical impact resistance of the insulating tube; and the insulating tube has high moisture resistance, compression springback amount and insulating property.

Description

technical field [0001] The invention relates to a high-temperature and high-strength insulating tube applied in the field of fuses and a manufacturing method thereof. Background technique [0002] At present, the manufacturing method of the insulating tube is to soak the insulating material, such as non-alkali glass cloth and non-alkali glass fiber, through the resin glue in the glue tank, and then wind it on the mold according to the angle corresponding to the required requirements. Warm and keep it warm for a period of time until the resin is solidified and then cooled and released. [0003] In the glue formula on the market, the resin glue consists of 100 parts of modified epoxy, 85 parts of anhydride curing agent, 25 parts of toughening agent and 1 part of accelerator by weight and number of parts. During the winding process, the resin glue and The adhesion of insulating materials is low, and the moisture resistance and compression resilience of uncured semi-finished ...

Claims

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Application Information

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IPC IPC(8): H01H85/02H01H69/02B29C70/40C08L63/00C08K7/14C08G59/42
Inventor 施明华吴振林
Owner 太仓市华强玻璃钢五金厂
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