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

Preparation method of rotary carbon/carbon composite material

A technology of carbon composite materials and rotators, which is applied in the field of preparation of rotator-like carbon/carbon composite materials, can solve problems such as shortening the preparation cycle, achieve the effects of shortening the densification cycle, improving the structure, and increasing the preparation efficiency

Active Publication Date: 2022-06-07
XIAN CHAOMA SCI TECH
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, in terms of shortening the preparation cycle and realizing efficient preparation while ensuring performance, there is currently no relevant research on a complete preparation method.

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
  • Preparation method of rotary carbon/carbon composite material
  • Preparation method of rotary carbon/carbon composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The preparation method of this embodiment comprises the following steps:

[0041] Step 1. Mandrel preparation: Determine the inner diameter of the target product cylindrical carbon / carbon composite material of 660mm, outer diameter of 690mm, wall thickness of 30mm, length of 500mm, high temperature elliptical deformation not exceeding 3mm, and density not less than 1.65g / cm 3 , the hoop tensile strength is not less than 190MPa, and the interlaminar shear strength is not less than 25MPa. According to the target product cylindrical carbon / carbon composite material and the heat treatment deformation law of the continuous carbon fiber used, the outer surface shape and the target product cylindrical shape are designed. Shape The inner surface of the carbon / carbon composite material has the same shape, a length of 600mm and an outer diameter of 586mm. Lay out a PTFE release cloth and apply silicone grease as a release agent on the PTFE release cloth;

[0042] Step 2. Carbon ...

Embodiment 2

[0050] The preparation method of this embodiment comprises the following steps:

[0051] The difference between this embodiment and embodiment 1 is: in step 1, the design density of the target product charcoal / charcoal pot is not less than 1.45g / cm 3 , the interlayer bonding strength is not less than 15MPa, the hoop tensile strength index is not less than 120MPa, the core mold material is electrode graphite, and the outer diameter of the core mold is 597mm; in step 2, the spiral winding angle is 85°, and the hoop winding angle is 87°, the inner diameter of the wrapping piece is 597mm, the outer diameter is 660mm, and the thickness is 31.5mm; in step 4, the inner diameter of the hot-pressing die is 670mm, and the gap with the wrapping piece is 5mm, and the process of the inner pressure heat treatment is: (1) first Under the pressure of 4MPa~8MPa, the temperature is increased to 150℃ at the rate of 20℃ / min~35℃ / min; (2) then under the pressure of 4MPa~8MPa, the temperature is inc...

Embodiment 3

[0054] The preparation method of this embodiment comprises the following steps:

[0055] The difference between this embodiment and embodiment 1 is: in step 1, the design density of the target product charcoal / charcoal pot is not less than 1.55g / cm 3 , the interlayer bonding strength is not less than 22MPa, the hoop tensile strength index is not less than 170MPa, the core mold material is electrode graphite, and the outer diameter of the core mold is 609mm; in step 2, the spiral winding angle is 55°, and the hoop winding angle is 89°, the inner diameter of the wrapping piece is 609mm, the outer diameter is 690mm, and the thickness is 40.5mm; in step 4, the inner diameter of the hot-pressing die is 696mm, and the gap with the wrapping piece is 3mm, and the process of the inner pressure heat treatment is: (1) first Under the pressure of 4MPa~8MPa, the temperature is increased to 150℃ at the rate of 20℃ / min~35℃ / min; (2) then under the pressure of 4MPa~8MPa, the temperature is inc...

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
sizeaaaaaaaaaa
densityaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing a rotary carbon / carbon composite material. The method comprises: 1. After cleaning the mandrel, laying a release cloth and brushing a release agent; 2. Brushing the continuous carbon fiber Winding on the mandrel of the release agent to form a winding part; 3. Vacuum pressure impregnation of the winding part, and after demoulding, the impregnated part is obtained by machining; Autoclave heat treatment to obtain the body of the rotary carbon / carbon composite material; fifth, strengthen the body of the rotary carbon / carbon composite material to obtain the rotary carbon / carbon composite material. The present invention achieves the target product thickness by introducing asphalt and adopting externally shaped internal pressure heat treatment process and strengthening treatment, increases the carbon fiber volume content in the rotary carbon / carbon composite material, and improves the rotary carbon / carbon composite material. performance, shorten the densification period, and improve the preparation efficiency of the rotary carbon / carbon composite material.

Description

technical field [0001] The invention belongs to the technical field of composite material preparation, and in particular relates to a preparation method of a rotary body-like carbon / carbon composite material. Background technique [0002] Carbon / carbon composite material is a carbon fiber reinforced carbon matrix composite material, which has a series of excellent properties such as high strength and high modulus, light specific gravity, small thermal expansion coefficient, corrosion resistance, thermal shock resistance, good friction resistance, and good chemical stability. A new type of ultra-high temperature composite material. Among them, the gyratory carbon / carbon composite materials have been widely used in civil fields such as single crystal silicon pulling and advanced ceramic hot pressing in the form of carbon / carbon crucibles, carbon / carbon hot pressing molds and other products. [0003] Although carbon / carbon composites have many excellent properties, they are cu...

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 Patents(China)
IPC IPC(8): C04B35/83C04B35/84C04B35/645C04B41/81
CPCC04B35/83C04B35/645C04B41/81C04B41/009C04B41/4531C04B41/4505C04B2235/48C04B2235/6562C04B2235/6567C04B2235/96C04B2235/9607C04B2235/77
Inventor 赵松程皓彭志刚张灵玉党瑞萍张永辉
Owner XIAN CHAOMA SCI TECH
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