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Manufacture method of fiber composite material automobile transmission shaft

A technology of fiber composite materials and drive shafts, which is applied in the field of auto parts manufacturing, can solve the problems of not being able to meet mass production, resin sticking to the mandrel, and difficult demoulding, etc., to meet the requirements of mass production, light weight, The effect of easy demoulding

Inactive Publication Date: 2015-05-20
WUHU LION AUTOMOTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventors have found that the prior art has at least the following problems: but for the manufacturing process of the fiber composite material automobile transmission shaft, the demoulding of the prepared fiber composite material sleeve from the mandrel is one of the major problems. The difficulty is that if you use a breakable mandrel, you have to break it every time, which not only wastes the mandrel, but also cannot meet the needs of mass production.
If the cardboard core mold is used, the resin will stick to the core mold and it is difficult to remove the mold

Method used

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  • Manufacture method of fiber composite material automobile transmission shaft

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0033] (1) Prepare an aluminum alloy mandrel with a length of 160cm and an outer diameter of 12cm;

[0034] (2) Polish the aluminum alloy mandrel twice with sandpaper, the first time with 2000 mesh sandpaper, the second time with 4000 mesh sandpaper, and use acetone to clean the polished sleeve three times, with an interval of 10 minutes between each cleaning. Then apply the release agent to the surface of the sleeve twice with an interval of 5 minutes;

[0035] (3) Put the mandrel on the winding machine, lap the fiber tow pre-impregnated with 5222 epoxy resin to the top of the mandrel, and start winding, wherein the first 5cm is the transition zone, and the orientation angle of the fiber tow transitions from 90° to 15°, the orientation angle transitions from 15° to 90° after winding to a distance of 5cm from the other top, and this winding method is kept until the winding thickness is 6mm;

[0036] (4) Wrap two layers of perforated shrinkable isolation film on the wound slee...

example 2

[0042] (1) Prepare an aluminum alloy mandrel with a length of 160cm and an outer diameter of 12cm;

[0043] (2) Polish the aluminum alloy mandrel twice with sandpaper, the first time with 2000 mesh sandpaper, the second time with 4000 mesh sandpaper, and use acetone to clean the polished sleeve three times, with an interval of 10 minutes between each cleaning. Then apply the release agent to the surface of the sleeve twice with an interval of 5 minutes;

[0044] (3) Put the mandrel on the winding machine, lap the fiber tow pre-impregnated with 5222 epoxy resin to the top of the mandrel, and start winding, wherein the first 5cm is the transition zone, and the orientation angle of the fiber tow transitions from 90° to 15°, the orientation angle transitions from 15° to 90° after winding to a distance of 5cm from the other top, and this winding method is kept until the winding thickness is 6mm;

[0045] (4) Wrap two layers of perforated shrinkable isolation film on the wound slee...

example 3

[0051] (1) Prepare an aluminum alloy mandrel with a length of 160cm and an outer diameter of 12cm;

[0052] (2) Polish the aluminum alloy mandrel twice with sandpaper, the first time with 2000-grit sandpaper, the second time with 4000-grit sandpaper, and use acetone to clean the polished sleeve three times, with an interval of 10 minutes between each cleaning. Then apply the release agent to the surface of the sleeve twice with an interval of 5 minutes;

[0053] (3) Put the core mold on the winding machine, lap the fiber tow pre-impregnated with 5222 epoxy resin to the top of the mandrel, and start winding, wherein the first 5cm is the transition zone, and the orientation angle of the fiber tow transitions from 90° to 30°, the orientation angle transitions from 30° to 90° after winding to a distance of 5cm from the other top, and this winding method is maintained until the winding thickness is 6mm;

[0054] (4) Wrap two layers of perforated shrinkable isolation film on the wo...

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Abstract

The invention discloses a manufacture method of a fiber composite material automobile transmission shaft. Fibers and resin are wound on a core mold by means of winding, and are molded by high-temperature curing. As the thermal expansion coefficient of a fiber composite material is far lower than the thermal expansion coefficient of metal, demoulding can be carried out at a relatively low temperature by adopting the principle of thermal expansion and cold shrinkage by utilizing different thermal expansion properties of the fiber composite material and the metal under relatively large temperature difference, and finally a sleeve is bonded to a universal joint fork which is redesigned in structure by using structure adhesive to finally obtain the FRP automobile transmission shaft with the light mass and the good performance and meeting the requirements.

Description

technical field [0001] The invention belongs to the field of auto parts manufacturing, and particularly designs a method for preparing a fiber composite material (FRP) auto transmission shaft. Background technique [0002] The transmission shaft is an important part of the power transmission system in the car. Its function is to transmit the power generated by the engine to the wheels together with the gearbox and drive axle, so that the car can generate driving force. Studies have shown that the operation of the transmission system itself will consume 17-22% of the energy generated by the engine. These energy consumptions are mainly caused by the weight of the transmission system. Therefore, reducing the weight of the transmission system will improve the energy utilization efficiency of the engine. [0003] Due to the advantages of light weight and high strength, fiber composite materials have been used as lightweight materials for automobiles. At present, quite a lot of d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C3/02B29C70/32B29C65/48
Inventor 宣善勇唐少俊秦玉林陈效华
Owner WUHU LION AUTOMOTIVE TECH CO LTD
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