Method for manufacturing carbon fiber arm support for concrete pump truck

A concrete pump truck, carbon fiber technology, applied in the field of composite materials, can solve the problems of heavy weight, poor mobility, corrosion, etc., and achieve the effects of high specific strength, superior performance, and large specific modulus

Active Publication Date: 2011-04-13
WEIHAI GUANGWEI COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the boom frame of the pump truck is mostly made of high-strength steel, which is heavy, has high requirements on the frame and chassis, high fuel consumption, and poor maneuverability; at the same time, the working condition of the pump truck is always under the action of

Method used

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  • Method for manufacturing carbon fiber arm support for concrete pump truck
  • Method for manufacturing carbon fiber arm support for concrete pump truck

Examples

Experimental program
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Embodiment Construction

[0011] Such as figure 1 As shown, the present embodiment is provided with a mandrel 1, the vacuum film 4 is wrapped on the mandrel 1, the upper die 2 and the lower die 3 are combined on the mandrel 1, and the carbon fiber preformed The impregnating material 5 is spread between the vacuum film 4 and the upper mold 2 and the lower mold 3, the clamping positions of the upper mold 2 and the lower mold 3 are fastened with bolts or clamps, and the upper mold 2 and the lower mold 3 are covered by the vacuum film 6 The two ends of the vacuum membrane 4 and the vacuum membrane 6 are respectively sealed together, the vacuum membrane 6 is provided with an air extraction hole 8, and the whole mold is put into the autoclave 7, and the autoclave 7 is provided with an air inlet 9. All the air inside the mold is exhausted through the exhaust hole 8 to form a vacuum. After passing the decompression test, the compressed air is input through the air inlet hole 9 to pressurize, and the electric h...

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Abstract

The invention relates to a method for manufacturing a carbon fiber arm support for a concrete pump truck. The carbon fiber arm support is provided with a hollow mandrel; the surface of the mandrel is hollowed out; a layer of vacuum film is covered on the surface of the mandrel; raw materials for manufacturing the carbon fiber arm support are laid on the surface of the vacuum film; an upper die and a lower die are combined on the mandrel; the combined position of the upper die and the lower die is fastened by bolts; the upper die and the lower die are coated by a vacuum film, and both ends of the vacuum film are sealed with both ends of the vacuum film on the mandrel; an air exhaust hole is formed on the vacuum film; and the whole die is put into a hot-press tank, is pressurized by compressing air and is heated, cured and molded by an electric heating tube. The carbon fiber arm support for the concrete pump truck processed by the method can fully exert the advantages of high specific strength, high specific modulus, fatigue resistance and corrosion resistance of carbon fiber reinforced epoxy resin composite materials so as to obtain superior-performance arm supports for the concrete pump truck and reduce 40 to 60 percent of weight of the arm support. Meanwhile, the method can be used in the fields of arm supports for fire trucks, suspension arms for hoisting equipment, power transmission, communication wires and poles and the like.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a method for manufacturing a carbon fiber arm frame for a concrete pump truck. Background technique [0002] As we all know, the boom is one of the most important key components of the concrete pump truck, and its safety, reliability and advancement are the keys to determine the core competitiveness of the pump truck. At present, the boom frame of the pump truck is mostly made of high-strength steel, which is heavy, has high requirements on the frame and chassis, high fuel consumption, and poor maneuverability; at the same time, the working condition of the pump truck is always under dynamic load. There is still a coupling effect between the components of the frame structure, which is prone to local deformation and cracking due to fatigue damage; in addition, the working environment of the pump truck is relatively harsh, and corrosion problems are prone to occur. C...

Claims

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Application Information

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IPC IPC(8): B29C70/44
Inventor 王朝辉段成金夏向欣
Owner WEIHAI GUANGWEI COMPOSITES
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