450g Unidirectional Fine Knitted Composite Felt For Wind Power Pultrusion

Industry knowledge

In the production process of carbon fiber composite materials, how does Zeyusen control the quality and specifications of the products to ensure that they are suitable for wind power pultrusion process?

1. Strict selection and quality control of raw materials
The quality of carbon fiber composite materials is directly affected by the raw materials. In the process of material selection, Zeyusen relies on technical cooperation with scientific research institutions such as the Chinese Academy of Sciences and CSG to ensure that the raw materials meet the high standards of the wind power industry. The company conducts comprehensive testing on basic materials such as carbon fiber and glass fiber, and selects raw materials with excellent mechanical properties and durability to ensure the long-term stability and reliability of the products.

For carbon fiber materials, Zeyusen focuses on the following aspects:

Fiber strength and modulus: The tensile strength and elastic modulus of carbon fiber are key factors in determining the performance of composite materials. Zeyusen cooperates with well-known domestic and foreign companies to ensure that the carbon fiber raw materials it purchases meet the standards of the international advanced level and can withstand the high load conditions that wind power equipment may encounter during operation.

Fiber surface treatment: The bonding between carbon fiber and resin directly affects the mechanical properties of the composite material. Zeyusen uses fine surface treatment processes such as tow surface coating and treatment to ensure good bonding between carbon fiber and resin, thereby improving the overall strength of the composite material.

Selection of glass fiber: When producing composite felts, Zeyusen also attaches great importance to the selection of glass fiber. Glass fiber not only provides structural support for composite materials, but also effectively enhances the impact resistance and high temperature resistance of the material to meet the stringent requirements of wind turbine blades.

2. Advanced production process control
When producing 450g unidirectional fine woven composite felts, Zeyusen uses advanced production technology and equipment to ensure that the material has consistent performance and stable quality. Its production process usually includes the following important steps:

Fiber weaving process: In order to ensure that the fiber distribution of the composite felt is uniform, the company uses precision textile technology and advanced water jet or hot pressing technology to ensure that the arrangement of the fibers meets the requirements of wind power pultrusion process for directionality and structure. During the production process, the directionality and density of each fiber are controlled to ensure that the strength and rigidity of the composite felt can meet the high strength and lightweight requirements of wind turbine blades.

Resin impregnation process: During the resin impregnation process, Zeyusen uses precise temperature and pressure control to ensure that the resin can be completely infiltrated between the fibers and avoid the formation of bubbles. The quality of the resin and the uniformity of impregnation are crucial to the performance of the composite material. The company adopts high-precision automated control equipment to ensure the quality and distribution of the resin, and ensure the tensile strength and fatigue resistance of the composite material.

Hot pressing process: Through the precise hot pressing process, Zeyusen can make the resin and fiber bond more tightly while maintaining the fiber strength, thereby improving the overall performance of the material. Strict temperature and pressure control during the hot pressing process ensures the density and uniformity of the material, so that the composite felt has excellent mechanical properties and is suitable for wind power pultrusion process.

3. Precision quality inspection system
The company has first-class quality inspection equipment and a strict quality control system to ensure that each batch of products meets high standards. In order to ensure that the composite material can withstand the high load in the wind power pultrusion process, Zeyusen's inspection includes the following aspects:

Mechanical property test: Through high-precision tensile test, compression test and shear test, the tensile strength, compressive strength and shear strength of the composite felt are tested. These properties directly affect the performance of the composite material in the wind power pultrusion process, ensuring the strength and stability of the final product.

Fatigue resistance test: Wind turbine blades will encounter constant vibration and load during long-term use, so the fatigue resistance of the material is crucial. The company uses a professional fatigue testing machine to repeatedly fatigue test the composite felt to ensure that its performance will not decline during long-term operation.

Environmental adaptability test: Wind turbine blades need to work for a long time in various harsh environments, so the material's UV resistance, high temperature resistance and low temperature resistance are very critical. The company uses environmental simulation tests to detect the performance changes of composite materials under high temperature, low temperature, humidity and ultraviolet rays to ensure that the material can still maintain good mechanical properties under variable climatic conditions.

Strict control of size and specifications: To ensure the adaptability of composite felt in the wind power pultrusion process, the company accurately controls the size and thickness of each batch of products. Laser measurement technology and automated testing equipment are used to ensure that the size and specifications of the product meet customer requirements.

4. Continuous technological innovation and R&D
The company has been committed to technological innovation and continues to promote the application of carbon fiber composite materials in the field of wind power. Relying on a strong R&D team, the company works closely with scientific research institutions such as the Chinese Academy of Sciences and CSG Institute to continuously develop new carbon fiber composite materials to meet the increasingly stringent technical requirements of the wind power industry. The company continues to make new progress in the research and development of high-performance carbon fiber and glass fiber, striving to achieve breakthroughs in performance, cost, environmental protection, etc., to ensure the competitiveness of its products in the wind power field.