A carbon fiber composite material handbrake cable and preparation method thereof

A composite material and carbon fiber technology, applied in the field of auto parts, can solve problems such as non-recoverability, performance reduction, and plastic deformation of steel wires, and achieve the effects of improving the overall stress state, enhancing strength utilization, and not being easily plastically deformed

Inactive Publication Date: 2018-11-16
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Long-term use of the handbrake will cause plastic deformation of the steel wire. Since this deformation is irreversible, long-term use will reduce the performance
[0003] In addition, because some steel wires are exposed to the air for a long time, the steel wires will be corroded and rusted, so that the mechanical properties of the steel wires cannot be fully exerted, which will affect the overall performance of the auxiliary braking mechanism and even cause danger.

Method used

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  • A carbon fiber composite material handbrake cable and preparation method thereof
  • A carbon fiber composite material handbrake cable and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Raw materials: carbon fiber reinforced material (T700SC-12K) with a volume ratio of 56%, epoxy resin (E44) with a volume ratio of 40%, dimethylaminopropylamine (DEAPA) with a volume ratio of 2%, and a volume ratio of 1% Tri-tertiary aminophenol (DMP-30) and carboxyl-terminated hyperbranched polyester (HBP-SA) with a volume ratio of 1%.

[0017] Specific preparation method:

[0018] (1) Mix the raw materials according to the above volume ratio, so that the resin is firmly combined with the carbon fiber through the impregnation and pre-curing process to form a carbon fiber tow;

[0019] (2) Braiding the carbon fiber tow in step (1) into a rope by using the rope weaving method to form a twisted cable;

[0020] (3) Put the twisted cable into the curing furnace for secondary curing. The temperature of the curing furnace is controlled at 200°C, and the curing time is at least 4 hours;

[0021] (4) Install the twisted cable after secondary curing in step (3) on the yarn carr...

Embodiment 2

[0024] Raw materials: carbon fiber reinforced material (T700SC-12K) with a volume ratio of 61%, epoxy resin (E44) with a volume ratio of 35%, dimethylaminopropylamine (DEAPA) with a volume ratio of 2%, and a volume ratio of 1% Tri-tertiary aminophenol (DMP-30) and carboxyl-terminated hyperbranched polyester (HBP-SA) with a volume ratio of 1%.

[0025] Concrete preparation method: with embodiment 1

Embodiment 3

[0027] Raw materials: carbon fiber reinforced material (T700SC-12K) with a volume ratio of 66%, epoxy resin (E44) with a volume ratio of 30%, dimethylaminopropylamine (DEAPA) with a volume ratio of 2%, and a volume ratio of 1% Tri-tertiary aminophenol (DMP-30) and carboxyl-terminated hyperbranched polyester (HBP-SA) with a volume ratio of 1%.

[0028] Concrete preparation method: with embodiment 1

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Abstract

The invention discloses a carbon fiber composite material hand brake pulling cable and a preparation method thereof. The pulling cable is prepared from the following raw materials in volume ratio: a carbon fiber reinforcing material 55%-67%, liquid epoxy resin 30%-40%, a curing agent 1%-3%, a curing accelerator 1% and an active toughening agent 1%. The preparation method comprises the following steps: (1) mixing the raw materials according to the volume ratio to form carbon fiber tows; (2) knitting the carbon fiber tows into ropes by a rope knitting method to form a twisted cable; (3) secondarily curing the twisted cable in a curing oven; (4) mounting the secondarily cured twisted cable on a yarn loading device, adjusting the speed to be reasonable, and controlling the number of sections, with unit length, of the carbon fiber cable to form a stranded cable; and (5) treating the surface of the stranded cable by using polyurethane emulsion to form a pliable and tough protecting film. The carbon fiber hand brake pulling cable is high in specific strength and high in specific modulus, is small in coefficient of linear expansion in high-temperature and low-temperature environments, and is lighter than the traditional cable, is anti-corrosion and is easy to arrange.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a carbon fiber handbrake cable and a preparation method thereof. Background technique [0002] At present, automotive mechanical hand brakes and cable-type electronic parking systems are connected to the brake shoes through steel cables, and the car is braked by friction clamping between the brake shoe and the brake hub or the friction plate and the brake disc. Long-term use of the handbrake will cause plastic deformation of the steel wire. Since this deformation is irreversible, long-term use will reduce the performance. [0003] In addition, because some steel wires are exposed to the air for a long time, the steel wires will be corroded and rusted, so that the mechanical properties of the steel wires cannot be fully exerted, which will affect the overall performance of the auxiliary braking mechanism and even cause danger. Contents of the invention [0004] The purpose o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/04C08L63/00C08L67/00C08K7/06B62L3/00
CPCB62L3/00C08J7/0427C08J2363/00C08J2467/00C08L63/00C08L67/00C08K7/06
Inventor 马芳武魏佳宝赵颖
Owner JILIN UNIV
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