Multi-axial composite felt

Abstract

The utility model discloses a multi-axial composite felt which is characterized by comprising a glass fiber surface felt lined in the surface layer of the composite felt, on the surface layer of the composite felt from top to bottom, glass fiber roving in the positive 45-degree direction is evenly laid on the second layer, glass fiber reinforcing ribs in the 0-degree direction and the 90-degree direction are evenly laid on the third layer and the fourth layer, and glass fiber roving in the negative 45-degree direction is evenly laid on the fifth layer. And the five fabric layers are bound and woven by low-elasticity polyester yarns to form an integral structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of textiles and relates to a multi-axial composite felt. Background Art

[0002] In order to better improve the process performance of composite fabrics used in blade manufacturing, a more reasonable design is needed in the structural details of the fabric to improve its performance indicators and ultimately improve product quality. Therefore, it is necessary to design a multi-axial composite felt. Summary of the Invention

[0003] The purpose of the utility model is to solve the above problems in the existing technology and to propose a multi-axial composite felt.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is: a multi-axial composite felt, characterized in that it includes a glass fiber surface felt lined in the surface layer of the composite felt; in the surface layer of the composite felt, from top to bottom, glass fiber roving is evenly laid in the second layer in the positive 45-degree direction, glass fiber reinforcement ribs are evenly laid in the 0-degree and 90-degree directions in the third and fourth layers, and glass fiber roving is evenly laid in the negative 45-degree direction in the fifth layer; and the above-mentioned five fabric layers are bundled and woven with low-elastic polyester yarn to form an overall structure.

[0005] The unit weight of the surface layer is 30-50 grams per square meter.

[0006] The second layer and the fifth layer are glass fiber rovings with yarn specifications of 300TEX-600TEX and unit weight of 600-800 grams per square meter.

[0007] The third layer and the fourth layer are glass fiber spun yarns with a yarn specification of 68TEX and a density of 0.5-1 yarns per inch.

[0008] The glass fiber roving is epoxy yarn.

[0009] By adopting the above technical solution, the beneficial effects of the utility model are:

[0010] The utility model adopts a five-layer structure, the surface layer is glass fiber surface felt, the second layer is glass fiber roving in the positive 45-degree direction, the third and fourth layers are glass fiber spun yarn in the 0-degree and 90-degree directions, and the fifth layer is glass fiber roving in the negative 45-degree direction. It is woven and bundled with low-elastic polyester yarn to form a whole, thereby greatly improving its surface diversion and reinforcement performance and mechanical properties in the 45-degree direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the present utility model.

[0012] In the figure, 1, surface layer; 2, second layer; 3, third layer; 4, fourth layer; 5, fifth layer. DETAILED DESCRIPTION

[0013] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0014] like Figure 1 As shown, the multi-axial composite felt includes a glass fiber surface felt lined in the surface layer 1 of the composite felt; in the surface layer 1 of the composite felt, from top to bottom, the second layer 2 is uniformly laid with glass fiber roving in the positive 45-degree direction, the third layer 3 and the fourth layer 4 are uniformly laid with glass fiber reinforcement in the 0-degree and 90-degree directions, and the fifth layer 5 is uniformly laid with glass fiber roving in the negative 45-degree direction; and the above five fabric layers are woven and woven with low-elastic polyester yarn to form an overall structure.

[0015] The surface layer 1 has a basis weight of 30-50 grams per square meter.

[0016] The second layer 2 and the fifth layer 5 are glass fiber rovings with yarn specifications of 300TEX-600TEX and unit weight of 600-800 grams per square meter.

[0017] The third layer 3 and the fourth layer 4 are glass fiber spun yarns with a yarn specification of 68TEX and a density of 0.5-1 yarns per inch.

[0018] The glass fiber roving is epoxy type yarn.

[0019] In summary, the utility model focuses on the performance of surface flow guidance enhancement and the mechanical properties in the 45-degree direction. The fabric has good process performance. The utility model realizes the mechanical properties and process requirements of the fabric in blade manufacturing through reasonable process design.

[0020] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0021] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A multi-axial composite felt, characterized in that: The invention comprises a glass fiber surface felt lined in the surface layer (1) of the composite felt; the surface layer (1) of the composite felt comprises, from top to bottom, glass fiber roving evenly laid in a positive 45-degree direction in the second layer (2), glass fiber reinforcement ribs evenly laid in a 0-degree direction and a 90-degree direction in the third layer (3) and the fourth layer (4), and glass fiber roving evenly laid in a negative 45-degree direction in the fifth layer (5); and the surface layer (1), the second layer (2), the third layer (3), the fourth layer (4), and the fifth layer (5) are woven and bound with low-elastic polyester yarn to form an overall structure.

2. A multi-axial composite felt according to claim 1, characterized in that: The unit weight of the surface layer (1) is 30-50 grams per square meter.

3. The multi-axial composite felt according to claim 1, characterized in that: The second layer (2) and the fifth layer (5) are glass fiber rovings with yarn specifications of 300TEX-600TEX and unit weight of 600-800 grams per square meter.

4. The multi-axial composite felt according to claim 1, characterized in that: The third layer (3) and the fourth layer (4) are glass fiber spun yarns with a yarn specification of 68TEX and a density of 0.5-1 yarns per inch.

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