Carbon based composited material helical spring and production method thereof
A technology of carbon-based composite materials and helical springs, which is applied in the direction of springs, carbon compounds, springs/shock absorbers, etc., and can solve the problems of poor spring structural capacity and low rigidity
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Embodiment 1
[0028] Depend on figure 1 As can be seen, a kind of carbon-based composite coil spring production method, it comprises the following steps:
[0029] (1) Blank making: first wind the carbon fiber bundle or carbon fiber cloth with the width of the spiral groove on the spiral groove 2 of the mandrel 1, the width of the spiral groove 2 is the same as the helix width of the spring, and the carbon fiber bundle or carbon fiber cloth The direction of the continuous long fiber is consistent with the helical direction of the spring. Then, the carbon fiber mesh tire with the width of the helical groove is wound on the helical groove 2 of the mandrel, and acupuncture is performed along the radial direction of the mandrel 1, and the Z-direction carbon fiber is introduced. ; Repeat the above process to make a carbon fiber spring prefabricated body of required size;
[0030] The surface density of the carbon fiber mesh tire of the present invention is 10g / m 2 ~100g / m 2 , needling density ...
Embodiment 2
[0046] In order to further improve the coefficient of elasticity of the helical spring, after the step (2), the present invention prepares the carbon / carbon composite material spring body through impregnation-cracking or trichloromethylsilane chemical vapor deposition or reaction infiltration of silicon through the carbon / carbon composite spring body / Silicon carbide composite spring body, the volume density of carbon / carbon / silicon carbide composite spring body is 1.6g / ㎝ 3 ~2.6g / ㎝ 3 .
[0047] In this embodiment, after the carbon fiber spring preform is subjected to chemical vapor deposition, trichloromethylsilane chemical vapor deposition is carried out to prepare a carbon / carbon / silicon carbide composite material spring body, a carbon / carbon / silicon carbide composite material spring body The bulk density is 2.0g / ㎝ 3 .
[0048] The elastic constant of the helical spring of the carbon-based composite material prepared in this embodiment can reach 1.0 ㎏ / ㎜˜5.0 ㎏ / ㎜.
[0049]...
Embodiment 3
[0051] In order to introduce continuous long fibers in the axial direction of the helical spring, improve the axial resistance of the helical spring in the spring compression direction, and improve the deformation resistance of the helical reverse fiber, the present invention winds the helical wire groove 2 in step (1). After the carbon fiber bundle or carbon fiber cloth with the width of the groove is wound, the carbon fiber mesh tire, carbon fiber cloth and carbon fiber mesh tire with the width of the spiral groove are wound on the spiral groove 2 one by one. The axial direction of 1 is the same, and at the same time, each time the carbon fiber mesh tire is wound, needle punching is performed along the radial direction of mandrel 1 to introduce Z-direction fibers; repeat the above process to make a carbon fiber spring prefabricated body of required size.
[0052] The surface density of the carbon fiber mesh tire of the present invention is 10g / m 2 ~100g / m 2 , needling densi...
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