Forming method of composite material winding shaft containing injection layer

A technology of composite materials and molding methods, which is applied in the field of mold molding, can solve problems such as winding shafts that cannot be molded, and achieve the effects of reducing time consumption, improving efficiency, and simplifying the manufacturing process

Pending Publication Date: 2018-08-10
HARBIN FRP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing composite material winding shaft with a fluid material interlayer cannot be formed, and to

Method used

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  • Forming method of composite material winding shaft containing injection layer
  • Forming method of composite material winding shaft containing injection layer

Examples

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Example Embodiment

[0026] Specific embodiment one, combined figure 1 , 2 This embodiment will be described. The spool forming method of this embodiment realizes the forming of the spool by using a spool forming mold, wherein the spool forming mold includes a central shaft 1, a left clamping ring 2, a left support ring 3, and a mold body 4. , Flow sandwich 5, outer mold 6, sealing end cap 7, gasket 8, fastening screw 9, carbon fiber and injection hole 10. The method of forming the spool includes the following steps:

[0027] Step 1. Mount the mold body 4 on a horizontal winding machine. After sanding the outer surface of the mold body 4 with 200 grit sandpaper, clean and polish the surface of the mold body 4 with cotton yarn, and brush on the mold body 4 Apply release agent;

[0028] Step 2: Apply body glue to the surface of the mold body 4 coated with release agent in Step 1, install the carbon fiber on the winding tensioner of the horizontal winding machine, and apply carbon fiber to the outer surf...

Example Embodiment

[0041] Specific implementation mode two, see figure 1 This embodiment will be described. This embodiment is a further limitation to the molding method of a composite material bobbin containing an injection layer described in the first embodiment. The body glue described in step 2 in this embodiment is made of resin and curing agent in a weight ratio of 1 :1 ratio of a colloid.

[0042] The combination of the colloidal components and their weight ratios described in this embodiment is beneficial to solve the problem of the mismatch of thermal expansion coefficients of various materials.

Example Embodiment

[0043] Specific implementation mode three, see figure 1 This embodiment will be described. This embodiment is a further limitation to the molding method of a composite material bobbin containing an injection layer described in the first embodiment. In the second step of this embodiment, the first layer of the multilayer carbon fiber prefabricated with the circumferentially wound carbon fiber layer The total thickness of the dipping material is 0.15 to 1 mm.

[0044] The thickness of the carbon fiber prepreg in this embodiment is beneficial to enhance the stiffness of the first layer of the composite material to be wound around the carbon fiber layer.

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Abstract

The invention relates to a forming method of a composite material winding shaft containing an injection layer, belongs to the field of mold forming and aims to solve the problem that an existing composite material winding shaft with a fluid material interlayer cannot be formed. A mold body is mounted on a horizontal winding machine, the outer surface of the mold body is sanded with 200-mesh sand paper, then the sanded surface of the mold body is cleaned with cotton yarns, and the mold body is coated with a mold releasing agent; and the surface, coated with the mold releasing agent in the firststep, of the mold body is coated with body colloid, carbon fibers are mounted on a winding tensioner of the horizontal winding machine, first-layer annular winding of the carbon fibers is performed on the outer surface of the mold body, the initial tension of the first-layer annular-wound carbon fibers is set to be 30+/-3N/cluster, the winding angle is set to be 85-90 degrees, winding is repeatedfor two to four times, the winding length of the first annular-wound carbon fiber layer is 150-500 mm, and the total wound layer thickness of the first annular-wound carbon fiber layer is 0.5-2 mm. By means of the forming method of the composite material winding shaft containing the injection layer, integrated forming of the fluid material interlayer and the first and second carbon fiber composite layer is achieved.

Description

technical field [0001] The invention relates to a molding method of a composite material winding shaft containing an injection layer, and specifically belongs to the field of mold molding. Background technique [0002] In the existing winding bobbin of fiber composite material, an optical fiber with an adhesive and a certain prestress is evenly and reciprocally wound on the surface of the bobbin and solidified and formed. The winding shaft needs to have a large axial thermal expansion coefficient, but it is difficult to meet a low circumferential thermal expansion coefficient. As the use temperature changes, the thermal expansion coefficients of the winding shaft and the optical fiber do not match in all directions, and it is easy to cause the optical fiber to Tension is easy to be torn off, and it is easy to cause gaps between optical fibers or even off-axis when cooling down. The current composite material spool is generally a monolithic structure, and the thermal expansi...

Claims

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Application Information

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IPC IPC(8): B29C70/32B29C70/34B29C70/36B29C70/54B29C70/88B29L11/00
CPCB29C70/32B29C70/34B29C70/36B29C70/545B29C70/88B29L2011/0075
Inventor 陈辉郭淑齐王洪运马国峰高小茹吴伟萍
Owner HARBIN FRP INST
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