Glass fiber fabric and sewing method thereof

Abstract

The invention provides a glass fiber fabric and a sewing method thereof. The glass fiber fabric comprises a plurality of groups of fabric units; each group of fabric unit is provided with a plurality of sew-knitting threads which are arranged in parallel or in a crossed way; each group of fabric unit is composed of a plurality of single-layer fabrics; the widths and shapes of all single-layer fabrics are same or different; and the plurality of single-layer fabrics are arranged up and down. The phenomenon of multilayer fabric surface unevenness caused by non-uniformity of internal tension of a multilayer fabric can be effectively avoided, the fitness performance of the sewed fabric can be improved, the effect that the glass fiber fabric is unruffled in a blade paving process is achieved, a design requirement of a blade is met, and the glass fiber fabric is relatively good in tension resistance and stress tolerance and better in stability. By using the sewing method provided by the invention, a tension generated by sewing can be effectively released, a tension concentration area can be avoided, so that the effect that the surface of the sewed fabric is unruffled in the blade paving process can be achieved; and the method can be used for saving the paving operation time by more than one half.

Description

technical field [0001] The invention relates to a glass fiber fabric, in particular to a glass fiber fabric and a sewing method thereof. Background technique [0002] With the development of society and economy, people's demand for energy is increasing day by day, and the traditional energy sources such as coal, oil, and natural gas stored in the earth are becoming increasingly scarce. Under the huge energy pressure, the development of inexhaustible, clean and pollution-free renewable new energy has become a global consensus. Wind energy is renewable, inexhaustible, non-polluting, and has high comprehensive social benefits. It is gradually becoming an important part of many countries' sustainable development strategies. At present, the global wind power industry is growing at an alarming rate, with an average annual growth rate of 28% in the past 10 years, and the annual investment in this field has reached 18 billion euros. The prospect of wind power generation will becom...

AI Technical Summary

Problems solved by technology

However, the current sewing technology, after sewing the fabric, is easy to wrinkle during the laying process, and the surface of the fabric is not smooth during the laying process, which cannot meet the design requirements of the blade

[0005] The utility model patent with the patent application number CN201220250866.4 discloses an improved glass fiber, including a glass fiber substrate, the upper surface of the glass fiber substrate is provided with an upper layer of epoxy resin, and the lower surface of the glass fiber substrate is The surface is provided with a lower epoxy resin layer, the outer surface of the upper epoxy resin layer is provided with an upper calcium carbonate cured coating, and the outer surface of the lower epoxy resin layer is provided with a lower calcium carbonate cured coating, The glass fiber base material is evenly distributed with color quality, but the utility model has poor shear resistance and interlayer separation resistance. When it is laid in a single layer, the surface is easy to be uneven and wrinkled, which cannot meet the blade design. Require

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