Pre-oxidized fiber filament / pre-oxidized fiber net tire composite pricking prefabricated body and method for manufacturing the same

A technology of pre-oxidized screen and pre-oxidized silk, which is applied in the direction of textiles, papermaking, non-woven fabrics, etc., can solve the problems of production cost or production efficiency competition, large manpower and material resources consumption, and extended production cycle, so as to save manpower , The effect of improving the production process and reducing the production cycle

Inactive Publication Date: 2009-08-12
宜兴市飞舟高新科技材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above is the process of producing carbon fiber prefabricated bodies by the original process, in which the fibers used are fibers that have undergone a carbonization process, and its products need to undergo a series of repeated treatments such as high temperature and carbonization in the subseque

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] Example 1: PAN pre-oxidized non-woven long fibers and pre-oxidized screen tires are processed into short fibers by automatic machinery, the fiber length is 50-100mm, heated to 30 degrees in an oven with a humidity of 3-5%, and after 24 hours Fiber properties can be improved. In this process, no chemical ingredients and sundries can be mixed, otherwise the quality of subsequent products will be affected. The use of automation equipment and the change of fiber properties determine the bonding quality of fibers and mesh tires, so that the density of short fibers forms a separated material. (Because the short fibers cannot be damaged or it will affect subsequent products), the fibers are automatically transferred to automatic control in the separated state. Gram weight / thickness, using machinery to automatically lay the mesh tire, the surface density is 60-200g / m 2, the product is a single-layer composite material of continuous pre-oxidized long fiber without weft and pre-...

example 2

[0028] Example 2: The net tread surface density combined by the above-mentioned process method is 54g / m 2 , the surface density of pre-oxidized long fibers is 306g / m 2 , according to the pre-oxidized silk without weft radial long fiber is combined with the mesh tire layer and then combined with needle punching layer by layer and plane alternate angle (60°-120°-240°), according to the process requirements acupuncture density 40 needles / cm 3 , the acupuncture depth is 16mm, according to the above process requirements, the layer-by-layer plane multi-angle needle punching layer density is 16 layers / cm, the short fiber mesh layer thickness is 0.4mm, and the long fiber thickness in the radial direction without weft is 0.8mm, which is equal to the bulk density of 0.576 g / cm 3 , three-dimensional prefabricated body with short fiber mesh layer ratio of 20%. The prefabricated body is made of high-temperature resistance, high running-in, and other high-performance advantages through...

example 3

[0029] Example 3: According to the process combination demonstrated by the above process, the layer density of the net tire is 90g / cm 2 , pre-oxidized longitudinal long fiber areal density 256g / cm 2 According to the technology, the radial long fiber is combined with the needle-punched layer of the mesh layer, and then combined with layer-by-layer plane multi-angle (60°-120°-240°) needle punching. According to the process requirements, the needle punching density is 40 needles / cm, and the interlayer density is 14 layers / cm, the short fiber mesh layer is 0.8 / mm, the radial long fiber thickness without weft is 1.0mm, which is equal to the bulk density of 0.5g / cm 3 , a three-dimensional prefabricated body with a ratio of short fiber mesh layer of 30%. The prefabricated body is made through a high-tech deposition process, which can be used for industrial components with high requirements such as wear resistance, fatigue resistance, electrical conductivity, and heat conduction. 20...

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Abstract

The invention discloses a preoxidized silk long macrofiber/preoxidized silk screen tire needling prefabricated body and a preparation method thereof. The needling prefabricated body is a layered composite material; each layer is a monolayer composite material prepared from the preoxidized silk long macrofiber and a preoxidized silk screen tire; the monolayer composite material is formed by continuously needling radial fibers formed by preoxidized silk weftless macrofibers which are arrayed on the preoxidized silk screen tire in rows; and a plurality of monolayer composite materials are needled to form a composite needling prefabricated body. The products of the invention obtained by a modernized high-tech carbon/carbon sediment process has high carbon content and no layering, and excellent performances of strong wear resistance, high temperature resistance, radiation resistance, corrosion resistance, light weight and the like, and greatly reduces the production time and the manufacturing cost. The high-performance fiber product is a novel functional structural product. The unique performance and advanced production process of the high-performance fiber product determine wide application prospect of the carbon fiber products in the fields of aviation, space flight, civil construction, sports medicine, electronic communication and the like.

Description

Technical field: [0001] The invention relates to a composite acupuncture prefabricated body. The high-performance composite acupuncture prefabricated body has the characteristics of high temperature resistance, friction resistance and light texture after being treated by modern chemical high temperature, high pressure and various carbon / carbon deposition processes. It is a high-tech new material recognized by modernization and a new product of important structural parts of aerospace. The invention particularly relates to a composite needle-punched preform made of PAN pre-oxidized filament long fibers and a pre-oxidized screen tire, and furthermore, the invention also relates to a preparation method of the composite needle-punched preform. Background technique: [0002] The composite needle-punched prefabricated body, after being treated by modern chemical high temperature, high pressure, and various carbon / carbon deposition processes, has the characteristics of high temperat...

Claims

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Application Information

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IPC IPC(8): D04H5/02D04H5/08
Inventor 缪伯承
Owner 宜兴市飞舟高新科技材料有限公司
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