Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low temperature rubber capsule used in oil conservator for transformer and preparation process

A technology of oil conservator and transformer, which is applied in transformer/inductor cooling, textile and paper making, etc. It can solve the problem that the transformer oil conservator capsule cannot be used normally, and achieve the effect of ensuring the use and oil resistance

Active Publication Date: 2012-06-06
SHENYANG HONGDA RUBBER & PLASTIC CO LTD
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention adopts a rubber formula with excellent low-temperature performance, and its brittleness temperature is lower than -60°C, which completely solves the problem that the capsule of the transformer oil conservator cannot be used normally at a low temperature of -60°C, so that it can still prevent transformer oil The effect of quality deterioration

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low temperature rubber capsule used in oil conservator for transformer and preparation process
  • Low temperature rubber capsule used in oil conservator for transformer and preparation process
  • Low temperature rubber capsule used in oil conservator for transformer and preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Brocade silk 525, a fiber fabric with high strength, excellent cold resistance, and softness at -60°C, is used as the capsule skeleton material. The surface of the capsule skeleton material brocade silk 525 is coated with rubber with good oil resistance, heat resistance, and cold resistance. , wherein the rubber material is composed of nitrile-26, nitrile-18, reinforcing agent high wear-resistant carbon black, spray carbon black and plasticizer dioctyl sebacate DOS, and the addition ratio is: high wear-resistant carbon black: Spray carbon black = 1.8:1; the addition amount of each component of the rubber material is calculated by weight percentage: 35% of nitrile-26, 20% of nitrile-18, 35% of reinforcing agent, and 10% of plasticizer.

[0023] The preparation process of the low-temperature capsule of the transformer oil conservator provided by the present invention includes processes such as gluing, calendering, molding and vulcanization, among which

[0024] (1) Gluing...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a low temperature rubber capsule used in an oil conservator for a transformer and a preparation process. The invention is characterized in that: the fabric, nylon silk 525, is used as a framework material of the low temperature rubber capsule, and the surface of the nylon silk 525 is coated with a sizing material which has good oil resistance, heat resistance and cold resistance and comprises butyronityile-26, butyronityile-18, a strengthening agent and a plasticizer; the preparation process comprises a step of filtering slurry of the sizing material with a 100-mesh screen and applying the sizing material on each surface of the nylon silk 525 at least three times, a step of calendering an obtained rubberized fabric by using a pressure rubberizing method and carrying out double-surface rubberizing on the rubberized fabric with a three-roll calender after rubber coating, a step of severing and molding the calendered rubberized fabric according to requirements of a drawing, a step of spreading talcum powder on the surface of formed capsules and putting the capsules into a vulcanizing tank for vulcanization and a step of carrying out visual and dimensional inspection and pressure test on the vulcanized capsules, packaging qualified capsules and putting the packaged qualified capsules in a warehouse. According to the invention, the problem that conventional rubber capsules used in an oil conservator for a transformer can not be normally used under a low temperature of -60 DEG C is thoroughly overcome.

Description

technical field [0001] The present invention relates to a transformer accessory and its preparation process, in particular to a transformer oil conservator low-temperature capsule and its preparation process, which is an improvement on the low-temperature resistance performance of the existing transformer oil conservator capsule to adapt to the normal use of transformers in cold regions . It belongs to the transformer manufacturing technology. Background technique [0002] The transformer oil conservator capsule is a supporting product of the transformer and a rubber accessory to prevent the oil quality of the transformer from deteriorating. [0003] The existing transformer oil conservator capsule is made of high-strength adhesive tape with excellent oil resistance. It is placed in the transformer oil and floats up and down with the change of oil level to prevent water and oxygen from invading the oil surface, prevent oil quality from deteriorating, and prolong the service...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/12H01F27/14
Inventor 李兴云王彦王昌贵周健
Owner SHENYANG HONGDA RUBBER & PLASTIC CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com