Repair method of carbon fiber rod
A carbon fiber rod and repair method technology, applied in the field of carbon fiber, can solve problems such as waste and increase the cost of using carbon fiber rods, and achieve a tight combination
Active Publication Date: 2019-12-20
JIANGSU HENGRUI CARBON FIBER TECH CO LTD +1
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Problems solved by technology
[0003] Existing carbon fiber rods can only be discarded in the case of cracks or breaks, which is a great waste and greatly increases the cost of using carbon fiber rods
Method used
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[0045] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to make a clearer and clearer definition of the protection scope of the present invention.
[0046] See figure 1 As shown, the embodiment of the present invention includes:
[0047] A method for repairing carbon fiber rods, the specific steps include:
[0048] (10) Plan analysis: Analyze the repair plan of the member according to the degree of fracture and damage of the member, determine the layer thickness / direction, and consider how to disperse the stress concentration when the member is subjected to force.
[0049] (20) Machining: face down processing according to the analysis plan; that is, the joint of the carbon fiber rod to be repaired is processed into a step shape including at least three steps, and the step difference...
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Abstract
The invention discloses a method for repairing a carbon fiber rod piece. The method specifically comprises the following steps of (10) analyzing the scheme; (20) machining, wherein surface reducing processing is carried out according to an analysis scheme; (30) assembling; (40) cutting parts; (50) paving layers, wherein the cut carbon fiber prepreg is paved according to the structure lamination sequence and the structure lamination direction; (60) solidifying, wherein a repairing area is wrapped by a high-temperature porous isolating film to a circle after the paving is completed, and the wrapped repairing area is put into a repair mold cavity of a repair device for heating and curing; and (70) coating, wherein after the repairing area is repaired and smooth, and the rod piece paint spraying is carried out. According to the method for repairing the carbon fiber rod piece, a method for combining the aluminum tube adhesive and the carbon fiber prepreg in a paving and solidifying mode isadopted, a special repairing device is adopted, so that on one hand, the size precision of the repaired rod piece is not lower than the size precision of the original rod piece, and on the other hand,the bonding between the product layers can be guaranteed; and the strength of the repaired products is not lower than the original strength of the rod pieces.
Description
Technical field [0001] The invention relates to the field of carbon fiber, in particular to a method for repairing a carbon fiber rod. Background technique [0002] Carbon fiber is a new material with excellent mechanical properties. Its specific gravity is less than 1 / 4 of that of steel. The tensile strength of carbon fiber resin composites is generally above 3500MPa, which is 7-9 times that of steel. The tensile modulus of elasticity is 230 -430GPa is also higher than steel. Rods or tubes made of carbon fiber have the advantages of lighter weight and stronger strength. [0003] The existing carbon fiber rods can only be discarded in the case of cracks or breaks, which is a great waste and greatly increases the use cost of the carbon fiber rods. [0004] Therefore, there is an urgent need for a method for repairing carbon fiber rods, which can repair the carbon fiber rods without affecting the mechanical properties of the carbon fiber rods, and can also ensure the accuracy of the ...
Claims
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IPC IPC(8): B29C73/00B29C73/26B29L31/06
CPCB29C73/00B29C73/26B29C2073/262B29L2031/06
Inventor 顾勇涛张启青高瑞强邵汉兵
Owner JIANGSU HENGRUI CARBON FIBER TECH CO LTD