Forming process for annular carbon fiber composite material pull rod

A composite material and molding process technology, applied in household components, household appliances, other household appliances, etc., can solve the problems of high porosity, poor surface quality of parts, poor working environment, etc., and achieve good low temperature resistance and bearing capacity. Strong, low porosity effect

Active Publication Date: 2014-04-30
SICHUAN XIN WAN XING CARBON FIBER COMPOSITES
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Problems solved by technology

But this method still has many disadvantages: the resin content of the product is not easy to control, the porosity is high, the working environment is poor, th

Method used

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  • Forming process for annular carbon fiber composite material pull rod
  • Forming process for annular carbon fiber composite material pull rod

Examples

Experimental program
Comparison scheme
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Embodiment

[0032] A carbon fiber composite annular tie rod is prepared through the following steps:

[0033] a. Prepare unidirectional carbon fiber prepreg tape, and cut the unidirectional prepreg tape according to actual needs

[0034] The width of the prepreg tape is determined by the size and compression of the ring tie rod. Generally, the compression amount should be controlled between 12% and 20%. Taking a ring tie rod with a width of 15mm as an example, a prepreg tape with a glue content of 35% is used. The width should be controlled between 17~18.5mm. The length of the prepreg tape is calculated according to the relevant parameters such as the single layer thickness of the prepreg material, the thickness of the ring tie rod, and the volume.

[0035] b. Apply a release agent on the surface of the mandrel, the optional release agents are: oleic acid, paraffin wax, stearic acid, silicone grease release agent, silicone oil release agent, zinc stearate, silicone grease, silicone ru...

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Abstract

The invention provides a forming process for an annular carbon fiber composite material pull rod and belongs to the field of a forming process of a composite material. In the forming process provided by the invention, band winding, mould pressing and curing are carried out by adopting a carbon fiber prepreg tape, so that the annular carbon fiber composite material pull rod can be manufactured. The forming process provided by the invention can be used for strictly controlling the content of resin in a product and reducing the porosity; the forming process has the advantages of good size stability of workpieces, strong bearing capacity and good low-temperature resistance, and can be used for a long term at a temperature of -55 DEG C. In the forming process provided by the invention, T700-level carbon fiber epoxy resin-based prepreg is adopted; the thermal expansion coefficient is 0.046-0.10 time as much as that of a glass fiber composite material; the annular pull rod made of the material has the advantages of relatively high bearing capacity and size stability.

Description

[0001] technical field [0002] The invention belongs to the field of molding technology of composite materials, and in particular relates to a molding technology of an annular pull rod made of carbon fiber composite material. Background technique [0003] The load-bearing tie rods currently on the market are usually made of metal. Domestic metal materials have accumulated rich technology, mature manufacturing technology, and excellent product performance, so they are widely used in various industries. However, for those low-temperature load-bearing environments, metal materials often cannot bear this heavy responsibility. Therefore, people turn their attention to composite materials. [0004] In order to meet the needs of hoisting heavy objects at low temperatures, the mainstream products currently on the market use the glass fiber wet winding molding process: after the glass fiber bundle is dipped in glue, it is directly wound on the mandrel under tension control. B...

Claims

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Application Information

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IPC IPC(8): B29C70/46B29K105/10B29K307/04B29L31/00
CPCB29C70/32B29C70/345
Inventor 石岩松马军刘智林李洪升李易红范云星
Owner SICHUAN XIN WAN XING CARBON FIBER COMPOSITES
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