Training and technical capabilities related to composite materials at Yifa New Materials Research Institute

1: Overview

With the rapid development of China's rail transit industry, safe operation, cost reduction, and efficiency improvement have increasingly become top priorities for industrial development. "A comprehensive solution with lightweight as the core is the best solution for safety and efficiency." In this context, the two main materials involved in lightweighting: high-strength alloy materials and composite materials have also received greater attention. Getting higher and higher. The demand for advanced polymer materials (adhesives and high-performance plastics) and high-performance composite materials (carbon fiber, glass fiber and other composite materials) is growing rapidly.

From the perspective of composite raw materials, taking carbon fiber as an example, the output has increased by 46.4% and the usage has increased by 49.1% in the past five years. Even so, China's current production can only meet 30% of market demand, and most of it depends on imports. There is a large market gap. How to produce high-performance composite materials that meet the needs of vehicle design and manufacturing involves professional knowledge such as resin selection, fiber selection, lamination process and manufacturing process.

From the perspective of the application of composite materials, although composite materials such as carbon fiber are maturely used in the aerospace and military industry, there is a closed source design and testing capability. Civilian design and testing capabilities are lacking and need to rely on foreign advanced technology support and training. For rail vehicles that use a large number of composite materials (carbon fiber, glass fiber, etc.), the selection of composite materials, confirmation of connection methods, process evaluation and testing are all crucial links. Especially for the repair of composite materials, the support of professional knowledge is urgently needed. The main problem is that technicians do not know enough about this new material and still carry out isotropic design based on the design ideas of metal materials, resulting in the performance advantages of composite materials not being maximized. At the same time, the production process of composite materials needs to be considered when designing, and testing and verification must be continuously conducted, which places extremely high demands on technical personnel. The structural assembly of composite materials is also different from that of metal materials. If it cannot be reasonably optimized, the complexity of the product will be greatly increased, and the cost cannot be reasonably controlled.

From the perspective of professional talents, cross-professional integrated senior technical talents play a decisive role in the research and development, design, and manufacturing of composite vehicles. It needs to span materials science, chemical engineering, machinery, mechanics, testing and other majors. We need multi-disciplinary talents who not only understand the principles, use, calculation, and testing of composite materials, but also have a deep understanding of quality management and process processes, and can look at professional issues from a holistic perspective. In short, the lack of professional and technical personnel is a key bottleneck restricting the application of composite materials.

Looking at the institutions that can provide this type of training, only Yifa New Materials Research Institute, a subsidiary of Yifa Bonding and Composite Materials Research Institute in China, can provide professional qualification training including the use of composite materials and connection processes. Yifa has cooperated with Germany's Fraunhofer IFAM (Fraunhofer Institute for Advanced Materials and Manufacturing Technology) for ten years, cultivating a unique domestic professional team with first-class professionalism, its bonding technology training and Composite material training is introduced in cooperation with Germany's Fraunhofer IFAM and locally optimized to suit China's national conditions. Its composite material training includes three levels and four types of training, including the operator-level composite material manufacturing course Composite_M and the maintenance course Composite_R. This maintenance course in China includes college education to composite manufacturing units, as well as various types of services that can be provided in society. Composite materials training is all vacant. Only YIFA, introduced from Germany, can provide this training. In addition, Yifa also provides technician-level composite material technician training course Composite_S. Like the bonding training course, it combines theory and practice, and adds on-site internships in composite material manufacturing companies. I believe this training can meet our needs. The most advanced course is the Composite Materials Engineer course Composite_E, which is detailed in Part Three.

Therefore, Yifa can provide comprehensive talent training on composite materials and bonding processes related to lightweight rail vehicles, related professional project support, special training, composite material simulation calculations and load-carrying capacity verification, process evaluation and experimental plan design, etc. Sexual services. Its service capabilities have been proven through long-term cooperation over the past few years, and it is a high-quality and stable professional technology supplier.

2: Course introduction

Fiber reinforced composite material technician training (Composite-S)

Study hours: 120 hours

Training objects: Engineering and technical personnel, quality management personnel and heads of relevant departments who are engaged in or are interested in engaging in composite material product research and development, design, process realization and manufacturing technology.

Ø Applicable industries

Related companies engaged in composite material R&D, manufacturing and maintenance in industries such as rail vehicles, aviation, aerospace, military industry, automobiles, ships, wind energy, photovoltaics, electronics, home appliances, etc.

Ø Training content

Basic principles and performance characteristics of fiber reinforced composites (FRP);

Various properties of fibers, matrix resin, core materials, fillers, etc., their impact on finished products, and key points for monitoring these elements during the production process;

Process technology focus in manufacturing and repair processes, etc.;

How to choose appropriate raw materials and manufacturing methods, including the processing methods of various thermosetting materials and thermoplastic materials, the impact of various fiber materials themselves and their lamination structures, geometric shapes, fiber directions, etc. on the final performance of the product and their optimization methods;

Characteristics and molding technologies of various manual and machine production technologies: hand lay-up, vacuum infusion molding, resin transfer molding (RTM), pressure molding, autoclave technology, pultrusion and other production methods;

Integrate the principles and techniques of composite repair and various repair methods into practical tasks. Such as the sources, formation and expansion mechanisms of various defects; prevention of defects; identification, detection and effective repair of defects (such as removal of damaged parts, surface preparation, repair techniques, etc.);

Quality assurance measures in the process of manufacturing and repairing fiber-reinforced plastics, various non-destructive testing technologies and destructive testing technologies, etc.;

Correct use of production equipment and personal protective equipment, safety measures during production, etc.;

A large number of practical operations help students effectively transform the knowledge they have learned into applied skills.

Fiber Reinforced Composites Manufacturing Training Course (Composite-M)

Course hours: 40 hours

Training target: composite material manufacturing practitioners, composite material users, quality inspectors, grassroots managers, etc.

Ø Applicable industries

Related companies engaged in composite material R&D, manufacturing and maintenance in industries such as rail vehicles, aviation, aerospace, military industry, automobiles, ships, wind energy, photovoltaics, electronics, home appliances, etc.

Ø Training content

The basic principles, components, processing points and manufacturing methods of fiber reinforced composites (FRP);

Extensive hands-on and extended practical experience;

Use manual methods to create high-quality composite products and structures;

Techniques for making various parts and geometries;

Correct use of production equipment and personal protective equipment, safety measures during production, etc.;

Understand and effectively follow process documents to complete specific work tasks and ensure product quality.

Fiber Reinforced Composite Maintenance Training Course (Composite-R)

Course hours: 40 hours

Training target: relevant practitioners engaged in composite material inspection, maintenance and repair work, or grassroots managers, etc.

Ø Applicable industries

Related companies engaged in composite material R&D, manufacturing and maintenance in industries such as rail vehicles, aviation, aerospace, military industry, automobiles, ships, wind energy, photovoltaics, electronics, home appliances, etc.

Ø Training content

How the various components of fiber-reinforced composite materials affect the overall performance of composite products;

Essentials of disposal of fiber reinforced composites and various methods of repairing composites;

Through the study of theoretical knowledge and the practice of extensive manual manufacturing methods, the effective processing of various components and geometric configurations as well as composite materials

Methods, identification and prevention of defects, etc., learn to repair composite products in industrial production;

How to ensure safety, health and environmental protection at work.

Three: Institutional information introduction: 

Germany's Fraunhofer IFAM (Fraunhofer Institute for Advanced Materials and Manufacturing Technology) is Europe's top bonding technology and composite materials research and development institution. The research and development of advanced materials, especially composite material application technology, is another core competency of Fraunhofer IFAM. . Fraunhofer IFAM is also an authoritative organization authorized by EWF (European Welding and Bonding Society) and DVS-PersZert® (German Welding and Bonding Society) to carry out DIN6701&DIN2304 related vocational and technical training (EAE, EAS, EAB). Composite material technology training (Composite-E, Composite-S, Composite-M, Composite-R) is a gold medal training course developed by Fraunhofer IFAM in recent years.

The series of composite materials courses are jointly taught by well-known German composite materials doctors and engineers and senior training instructors from Yifa. The content covers the entire process from fibers, resins, textile semi-finished products, prepregs, textile preforms to final products. The processes involved include hand lay-up, vacuum bag, vacuum infusion, RTM resin transfer injection molding, autoclave, pultrusion, and molding. Technology, etc., and provide special training for problems that arise in the product design process. Analytical calculations and numerical analysis are combined to facilitate students to systematically master composite material design methods. At the same time, this series of courses also provides a unique series of composite material maintenance courses, learning the repair of composite materials from the aspects of defect sources, identification and detection, and writing maintenance operation instructions. The course combines theory with practice, and half of the time is spent on practical operations, allowing students to intuitively grasp various process details. German engineers answered questions throughout the process and helped students solve problems encountered during the production process. After passing the exam at the end of the course, you will be awarded an authoritative certification from Fraunhofer IFAM.

The testing center affiliated to Yifa Bonding and Composites Research Institute has CNAS qualifications and has a number of senior and experienced testing engineers, who can provide enterprises with professional and impartial process assessment and auxiliary design verification services.

Through professional technical training on composite materials, trainees can quickly establish a complete knowledge framework and master the core technical difficulties of different processes, which can be applied to the actual production of enterprises to greatly improve product quality and stability. At the same time, it can help companies quickly form a group of composite material technical teams with strong professional capabilities and high technical levels, which is of great significance for overcoming different technical problems. Enterprise competition is ultimately a competition for talents. Only by ensuring the continuous improvement of the knowledge and capabilities of enterprise talents can core technological advantages be established and enterprises remain invincible.

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