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

Curved shallow-crossing linking structure carbon fiber/copper fiber carbon-based friction material and preparation method thereof

A friction material, shallow cross-bending technology, applied in the direction of carbon fiber, fiber treatment, fabric, etc., can solve the problems of difficult to bear large torsional moment, poor structural integrity, easy delamination and damage, and achieve mechanical strength improvement, bending resistance, etc. Strength and shear strength enhancement, effectiveness in overcoming delamination problems

Inactive Publication Date: 2016-07-27
JIANGNAN UNIV
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has the disadvantages of poor structural integrity, low designability, and easy delamination and damage. It is difficult to withstand large torsional moments, and it is prone to failure under harsh working conditions such as high speed and high pressure. It is only used in medium and low load situations. However, in the direction of high speed and heavy load, higher requirements are put forward for the safety and stability of the braking system. How to overcome the above defects of friction materials becomes the key to solving the problem.

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
  • Curved shallow-crossing linking structure carbon fiber/copper fiber carbon-based friction material and preparation method thereof
  • Curved shallow-crossing linking structure carbon fiber/copper fiber carbon-based friction material and preparation method thereof
  • Curved shallow-crossing linking structure carbon fiber/copper fiber carbon-based friction material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A carbon fiber / copper fiber carbon-based friction material with a shallow cross-bending structure. The preparation method of the friction material includes the following steps:

[0033] (1) Preparation of carbon fiber / copper fiber prefabricated body with shallow cross-bending structure:

[0034] ① warp yarn, 1 strand of 1650dtex copper fiber is parallel twisted, and the twist is 4 twists / 10cm, as the warp yarn;

[0035] ② Weft yarn, the carbon fiber and copper fiber are twisted and plied as the weft yarn; the following formula is used for the weft yarn to determine the mass fraction of carbon fiber and copper fiber:

[0036] N t = 1000 G k L

[0037] In the formula, Nt-represents the linear density of the yarn, tex; Gk-represents the weight of the yarn at a given moisture regain, g; L-represents the length of the yarn, m; the mixing...

Embodiment 2

[0045] A carbon fiber / copper fiber carbon-based friction material with a shallow cross-bending structure. The preparation method of the friction material includes the following steps:

[0046] (1) Preparation of carbon fiber / copper fiber prefabricated body with shallow cross-bending structure:

[0047] ① Warp yarn, 5 strands of 1650dtex copper fiber are parallel twisted, and the twist is 7 twists / 10cm, as the warp yarn;

[0048] ② Weft yarn, the carbon fiber and copper fiber are twisted and plied as the weft yarn; the weft yarn is determined by the following formula

[0049] N t = 1000 G k L

[0050] Mass fraction of carbon fiber and copper fiber:

[0051]In the formula, Nt-represents the linear density of the yarn, tex; Gk-represents the weight of the yarn at a given moisture regain, g; L-represents the length of the yarn, m; the mixing ...

Embodiment 3

[0059] A carbon fiber / copper fiber carbon-based friction material with a shallow cross-bending structure. The preparation method of the friction material includes the following steps:

[0060] (1) Preparation of carbon fiber / copper fiber prefabricated body with shallow cross-bending structure:

[0061] ① Warp yarn, 10 strands of 1650dtex copper fibers are parallel twisted, and the twist is 10 twists / 10cm, as the warp yarn;

[0062] ② Weft yarn, the carbon fiber and copper fiber are twisted and plied as the weft yarn; the following formula is used for the weft yarn to determine the mass fraction of carbon fiber and copper fiber:

[0063] N t = 1000 G k L

[0064] In the formula, Nt-represents the linear density of the yarn, tex; Gk-represents the weight of the yarn at a given moisture regain, g; L-represents the length of the yarn, m; the m...

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
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a curved shallow-crossing linking structure carbon fiber / copper fiber carbon-based friction material and a preparation method thereof.The preparation method of the friction material comprises the following steps that 1, preparation of a curved shallow-crossing linking structure carbon fiber / copper fiber preform is conducted and includes (1) warp yarn preparation, (2) weft yarn preparation, (3) warping, (4) drafting and denting, (5) weaving and (6) take-up and let-off; 2, CVI deposition is performed: the carbon fiber / copper fiber perform is arranged in a CVI system for deposition to prepare the friction material.Long carbon fibers and copper fibers are mixed and woven for preparation of the friction material, the advantages of the two types of fibers are fully played and the shortcomings of the fibers are overcome to achieve the effect of overcoming their own shortcomings by learning from their strong points.

Description

technical field [0001] The invention relates to the technical field of material processing, in particular to a manufacturing process of a shallow cross-bending carbon fiber / copper fiber carbon-based friction composite material. Background technique [0002] Carbon fiber / copper fiber reinforced carbon-based friction materials have a simple preparation process, less cleaning and pollution, good thermal stability, mechanical properties and excellent friction and wear properties, and have broad development prospects. In recent years, there have been a large number of friction materials related to carbon fiber hybrid hot pressing, but most of them use chopped hybrid fibers. However, it has the disadvantages of poor structural integrity, low designability, and easy delamination and damage. It is difficult to withstand large torsional moments, and it is prone to failure under harsh working conditions such as high speed and high pressure. It is only used in medium and low load situa...

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
IPC IPC(8): D03D25/00D03D15/02D03D15/00D03D13/00D06M11/74D06M101/40D03D15/25D03D15/275D03D15/47D03D15/593
CPCD03D13/008D03D25/005D06M11/74D06M2101/40D10B2101/12D10B2101/20D03D15/593D03D15/47
Inventor 卢雪峰龙祥钱坤俞科静孙洁肖学良
Owner JIANGNAN UNIV
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