阅读说明：本技术 一种用于发盖外板的碳纤维复合材料及其制造方法 (Carbon fiber composite material for hair cover outer plate and manufacturing method thereof ) 是由 宋海泉 朴喜俊 李宇彤 刘业鹏 于 2021-08-06 设计创作，主要内容包括：本发明公开了一种用于发盖外板的碳纤维复合材料,包括一层双向平纹编织布和多层叠在所述双向平纹编织布下方的单向带；多个所述单向带之间的纹路相互交错；本发明的用于发盖外板的碳纤维复合材料及其制造方法,结构简单,使用方便,通过多层纹路相互交错的单向带,提高碳纤维复合材料的结构强度,确保发盖具有较好的抗凹强度和刚度；并通过双向平纹编织布,使碳纤维复合材料的外观面具有较好的美观性。(The invention discloses a carbon fiber composite material for a hair cover outer plate, which comprises a layer of bidirectional plain woven cloth and a plurality of unidirectional tapes stacked below the bidirectional plain woven cloth; the grains among the unidirectional belts are mutually staggered; the carbon fiber composite material for the hair cover outer plate and the manufacturing method thereof have the advantages that the structure is simple, the use is convenient, the structural strength of the carbon fiber composite material is improved through the multi-layer unidirectional belts with mutually staggered grains, and the hair cover is ensured to have better dent-resistant strength and rigidity; and the appearance surface of the carbon fiber composite material has better aesthetic property through the bidirectional plain woven cloth.)

1. The utility model provides a carbon-fibre composite for sending out lid planking which characterized in that: comprises a layer of bidirectional plain weave cloth (1) and a plurality of unidirectional tapes which are stacked under the bidirectional plain weave cloth (1); the grains between the unidirectional belts are mutually staggered.

2. The carbon fiber composite material for hair hood outer panels as set forth in claim 1, wherein: the number of the unidirectional tapes is twelve; the twelve layers of unidirectional belts are sequentially a first unidirectional belt (2), a second unidirectional belt (3), a third unidirectional belt (4), a fourth unidirectional belt (5), a fifth unidirectional belt (6), a sixth unidirectional belt (7), a seventh unidirectional belt (8), an eighth unidirectional belt (9), a ninth unidirectional belt (10), a tenth unidirectional belt (11), an eleventh unidirectional belt (12) and a twelfth unidirectional belt (13) from top to bottom; the grain angles of the bidirectional plain woven cloth (1) are 0 degree and 90 degrees; the grain angles of the first unidirectional belt (2), the eighth unidirectional belt (9) and the twelfth unidirectional belt (13) are-45 degrees; the grain angles of the second unidirectional belt (3), the sixth unidirectional belt (7) and the eleventh unidirectional belt (12) are 0 degree; the grain angles of the third unidirectional belt (4), the fifth unidirectional belt (6) and the tenth unidirectional belt (11) are 45 degrees; the grain angles of the fourth unidirectional belt (5), the seventh unidirectional belt (8) and the ninth unidirectional belt (10) are 90 degrees.

3. The carbon fiber composite material for hair hood outer panels as set forth in claim 2, wherein: the thickness of the bidirectional plain woven cloth (1) is 0.28 mm; the thickness of twelve layers of the unidirectional tape is 0.167 mm.

4. A method for manufacturing the carbon fiber composite material for the hair hood outer panel according to any one of claims 1 to 3, wherein; the method comprises the following steps:

step S1, preparing the bidirectional plain woven cloth (1) and a unidirectional tape;

step S2, cutting the bidirectional plain woven cloth (1) and the unidirectional tape into an integral paving shape according to the grain angle required by each layer of design;

step S3, firstly, paving the cut bidirectional plain woven cloth (1) in a prepared mould;

step S4, paving the cut unidirectional tapes layer by layer in a prepared mould according to the calculated angle sequence;

step S5, after the two-way plain woven cloth (1) and the unidirectional tape are paved, covering a vacuum bag on the outer side of the whole mould, and exhausting air outwards;

step S6, the whole body is sent into an autoclave to be heated, pressurized and cured according to the following steps;

and step S7, finally cooling and demolding.

5. The method for manufacturing a carbon fiber composite material for hair hood outer panels as claimed in claim 4, wherein: in step S2, the bidirectional plain woven fabric (1) and the unidirectional tape are cut by an automatic blanking machine.

6. The method for manufacturing a carbon fiber composite material for hair hood outer panels as claimed in claim 4, wherein: sequentially paving the cut bidirectional plain woven cloth (1) and the unidirectional tape in a manual mode according to the sequence and sleeving the bidirectional plain woven cloth and the unidirectional tape into a vacuum bag; then the air pressure in the vacuum bag is pumped to-0.1 Mpa.

7. The method for manufacturing a carbon fiber composite material for hair hood outer panels as claimed in claim 4, wherein: in step S6, the autoclave pressure is set to 0.5Mpa, the temperature is set to 80 ℃, and the autoclave is kept for 30 minutes; then the pressure is increased to 0.8Mpa, the temperature is increased to 130 ℃, and the temperature is kept for 90 minutes.

Technical Field

The invention relates to the field of engine covers, in particular to a carbon fiber composite material for an engine cover outer plate and a manufacturing method thereof.

Background

With the environmental protection problem and the energy problem becoming more prominent, the design requirement for lightweight automobile has become more important. The lightweight design of the automobile can improve the dynamic property, the economical efficiency, the environmental protection property and the comfort of the automobile. The carbon fiber composite material has become a key material for automobile lightweight design selection due to the characteristics of light weight, high strength, corrosion resistance, fatigue resistance, strong appearance science and technology feeling, strong designability and the like; the traditional automobile hair cover is made of metal materials, if the traditional automobile hair cover is changed into carbon fiber materials, the weight can be reduced by more than 40%, but because the hair cover has larger area and high requirement on appearance smoothness, the carbon fiber composite material hair cover outer plate in the common process is difficult to meet the requirements on strength and appearance.

Based on the above situation, the present invention provides a carbon fiber composite material for an engine cover outer panel and a manufacturing method thereof, which can effectively solve the above problems.

Disclosure of Invention

The invention aims to provide a carbon fiber composite material for a hair cover outer plate and a manufacturing method thereof. The carbon fiber composite material for the hair cover outer plate and the manufacturing method thereof have the advantages that the structure is simple, the use is convenient, the structural strength of the carbon fiber composite material is improved through the multi-layer unidirectional belts with mutually staggered grains, and the hair cover is ensured to have better dent-resistant strength and rigidity; and the appearance surface of the carbon fiber composite material has better aesthetic property through the bidirectional plain woven cloth.

The invention is realized by the following technical scheme:

a carbon fiber composite material for a hair cover outer plate comprises a layer of bidirectional plain woven cloth and a plurality of unidirectional tapes stacked below the bidirectional plain woven cloth; the grains between the unidirectional belts are mutually staggered.

According to the invention, the structural strength of the carbon fiber composite material is improved through the multi-layer unidirectional belt with mutually staggered grains, and the hair cover is ensured to have better dent-resistant strength and rigidity; and the appearance surface of the carbon fiber composite material has better aesthetic property through the bidirectional plain woven cloth.

Preferably, the number of unidirectional tapes is twelve; the twelve layers of unidirectional belts are sequentially a first unidirectional belt, a second unidirectional belt, a third unidirectional belt, a fourth unidirectional belt, a fifth unidirectional belt, a sixth unidirectional belt, a seventh unidirectional belt, an eighth unidirectional belt, a ninth unidirectional belt, a tenth unidirectional belt, an eleventh unidirectional belt and a twelfth unidirectional belt from top to bottom; the grain angle of the bidirectional plain woven cloth is 0 degree and 90 degrees; the grain angles of the first unidirectional belt, the eighth unidirectional belt and the twelfth unidirectional belt are-45 degrees; the grain angles of the second unidirectional belt, the sixth unidirectional belt and the eleventh unidirectional belt are 0 degree; the grain angles of the third unidirectional belt, the fifth unidirectional belt and the tenth unidirectional belt are 45 degrees; the grain angle of the fourth unidirectional belt, the seventh unidirectional belt and the ninth unidirectional belt is 90 degrees.

Preferably, the thickness of the bidirectional plain weave cloth is 0.28 mm; the thickness of twelve layers of the unidirectional tape is 0.167 mm.

A method for manufacturing the carbon fiber composite material for the hair cover outer plate; the method comprises the following steps:

step S1, preparing the bidirectional plain woven cloth and the unidirectional tape;

step S2, cutting the bidirectional plain woven cloth and the unidirectional tape into an integral paving shape according to the grain angle required by each layer of design;

step S3, firstly, paving the cut bidirectional plain woven cloth in a prepared mould;

step S4, paving the cut unidirectional tapes layer by layer in a prepared mould according to the calculated angle sequence;

step S5, after the two-way plain woven cloth and the one-way belt are paved, covering a vacuum bag on the outer side of the whole mould, and exhausting air outwards;

step S6, the whole body is sent into an autoclave to be heated, pressurized and cured according to the following steps;

and step S7, finally cooling and demolding. .

Preferably, in step S2, the bidirectional plain woven fabric and the unidirectional tape are both cut by an automatic blanking machine.

Preferably, in step S5, the cut bidirectional plain woven fabric and unidirectional tape are sequentially laid and sleeved in a vacuum bag in a manual manner; then the air pressure in the vacuum bag is pumped to-0.1 Mpa.

Preferably, in step S6, the autoclave pressure is set to 0.5Mpa, the temperature is set to 80 ℃, and the autoclave is maintained for 30 minutes; then the pressure is increased to 0.8Mpa, the temperature is increased to 130 ℃, and the temperature is kept for 90 minutes.

Compared with the prior art, the invention has the following advantages and beneficial effects:

the carbon fiber composite material for the hair cover outer plate and the manufacturing method thereof have the advantages that the structure is simple, the use is convenient, the structural strength of the carbon fiber composite material is improved through the multi-layer unidirectional belts with mutually staggered grains, and the hair cover is ensured to have better dent-resistant strength and rigidity; and the appearance surface of the carbon fiber composite material has better aesthetic property through the bidirectional plain woven cloth.

Drawings

FIG. 1 is a schematic structural view of an outer plate of a hair cover;

fig. 2 is a schematic cross-sectional structure of the present invention.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in conjunction with specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Example 1:

as shown in fig. 1 to 2, a carbon fiber composite material for a hair cover outer panel includes a layer of a bidirectional plain woven fabric 1 and a plurality of unidirectional tapes laminated under the bidirectional plain woven fabric 1; the grains between the unidirectional belts are mutually staggered.

According to the invention, the structural strength of the carbon fiber composite material is improved through the multi-layer unidirectional belt with mutually staggered grains, and the hair cover is ensured to have better dent-resistant strength and rigidity; and the appearance surface of the carbon fiber composite material has better aesthetic property through the bidirectional plain woven cloth 1.

Further, in another embodiment, the number of unidirectional tapes is twelve layers; the twelve layers of unidirectional belts are sequentially a first unidirectional belt 2, a second unidirectional belt 3, a third unidirectional belt 4, a fourth unidirectional belt 5, a fifth unidirectional belt 6, a sixth unidirectional belt 7, a seventh unidirectional belt 8, an eighth unidirectional belt 9, a ninth unidirectional belt 10, a tenth unidirectional belt 11, an eleventh unidirectional belt 12 and a twelfth unidirectional belt 13 from top to bottom; the grain angles of the bidirectional plain woven cloth 1 are 0 degree and 90 degrees; the grain angles of the first unidirectional belt 2, the eighth unidirectional belt 9 and the twelfth unidirectional belt 13 are-45 degrees; the grain angles of the second unidirectional belt 3, the sixth unidirectional belt 7 and the eleventh unidirectional belt 12 are 0 degree; the grain angles of the third unidirectional belt 4, the fifth unidirectional belt 6 and the tenth unidirectional belt 11 are 45 degrees; the grain angles of the fourth unidirectional belt 5, the seventh unidirectional belt 8 and the ninth unidirectional belt 10 are 90 degrees.

Through the arrangement, the lines on every two layers are staggered, so that the carbon fiber composite material can better disperse the received force along a plurality of lines, and better stress capacity is guaranteed.

Further, in another embodiment, the thickness of the bidirectional plain woven fabric 1 is 0.28 mm; the thickness of twelve layers of the unidirectional tape is 0.167 mm.

Example 2:

as shown in fig. 1 to 2, a method of manufacturing a carbon fiber composite material for a hair cover outer panel according to embodiment 1; the method comprises the following steps:

step S1, preparing the bidirectional plain woven fabric 1 and a unidirectional tape;

step S2, cutting the bidirectional plain woven cloth 1 and the unidirectional tape into an integral paving shape according to the grain angle required by each layer of design;

step S3, first, the cut bidirectional plain woven fabric 1 is laid in a prepared mold;

step S4, paving the cut unidirectional tapes layer by layer in a prepared mould according to the calculated angle sequence;

step S5, after the two-way plain woven cloth 1 and the one-way belt are paved, covering a vacuum bag on the outer side of the whole mould, and exhausting air outwards;

step S6, the whole is sent into an autoclave to be heated, pressurized and cured;

and step S7, finally cooling and demolding.

According to the invention, the mechanical property of the outer plate of the hair cover is designed to be isotropic by combining the actual use working condition and performance requirement of the outer plate of the hair cover and the general specification of the layer design of the carbon fiber composite material, and the electrochemical corrosion requirement of the surface and a metal piece is met under the condition of meeting various performance requirements, light weight requirements, actual use requirements and forming process requirements through CAE analysis, so that the carbon fiber composite material has better structural strength and mechanical property, and the defects of deformation, distortion and the like of a product are avoided; and the carbon fiber composite material with higher quality and performance is obtained by adopting an autoclave molding process.

Further, in another embodiment, in step S2, both the bidirectional plain woven fabric 1 and the unidirectional tape are cut by an automatic blanking machine.

Adopt automatic blanking machine, ensure that two-way plain weave woven cloth 1 and unidirectional tape have better effect of tailorring, and the precision of tailorring is higher, tailors the incision and is more level and smooth.

Further, in another embodiment, in step S5, the cut bidirectional plain woven cloth 1 and the unidirectional tape are sequentially laid and sleeved in a vacuum bag in a manual manner; then the air pressure in the vacuum bag is pumped to-0.1 Mpa.

The manual laying is adopted, the laying effect is better, and each layer can ensure better alignment; the air pressure in the vacuum bag is pumped to-0.1 Mpa, and the bidirectional plain woven cloth 1 and the unidirectional tape are pressed tightly through the difference of the internal air pressure and the external air pressure; adopt atmospheric pressure right two-way plain weave fabric 1 and unidirectional tape compress tightly, guarantee better compacting effect and carbon-fibre composite can be better laminating mould, guarantee better shaping effect, the packing force that two-way plain weave fabric 1 and unidirectional tape received is more even, can not damage in addition two-way plain weave fabric 1 and unidirectional tape.

Further, in another embodiment, in step S6, the autoclave pressure is set to 0.5Mpa, the temperature is set to 80 ℃, and the autoclave is maintained for 30 minutes; then the pressure is increased to 0.8Mpa, the temperature is increased to 130 ℃, and the temperature is kept for 90 minutes.

According to the description and the drawings of the invention, the carbon fiber composite material for the hood outer panel and the manufacturing method thereof of the invention can be easily manufactured or used by those skilled in the art, and can produce the positive effects recorded in the invention.

Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.