昆山Coating technology and new material technology of automobile stamping steel

Automobile stamping steel manufacturers say about automobile stamping steel coating process and new material technology.

With the rapid development of the automobile industry, after years of evolution and development of automobiles, the automobile manufacturing industry is constantly seeking new technologies and new materials to make automotive products more advanced and high-quality. As one of the important materials of automobile manufacturing, automobile steel plays a vital role in the automobile industry. How to optimize the coating process and materials of automobile steel, improve the quality of automobile steel, and enhance the performance and reliability of automobile is the challenge that the automobile industry needs to face.

Overview of steel painting

Steel coating is an important part of the automobile manufacturing process, and the most commonly used coating process is electrophoretic coating. Electrophoretic coating process is to achieve the coating effect of automobile steel materials through electrophoretic coating technology, which has the advantages of high coating uniformity, good coating thickness control, environmental protection, energy saving and so on.

2. Steel materials for automobile stamping

At present, the steel materials commonly used in the automobile industry are mainly: low carbon steel, strength steel, steel and aluminum composite plates.

1, low carbon steel

Low carbon steel accounts for a very large proportion in automobiles, which has the characteristics of cheap, good stamping and strong toughness, and is the first choice of body structural materials. Its disadvantage is low strength, which is not conducive to lightweight automotive structure.

2, strength steel

Strength steel refers to steel with a strength greater than 590MPa and is another important material for steel coating. Compared with low carbon steel, strength steel has the characteristics of high strength, excellent toughness, good stamping, and so on, while its weight is also low, easy to achieve lightweight body.

3, steel and aluminum composite plate

Steel and aluminum composite plate is the initial use of small scope of automobile, with the improvement of automobile lightweight, and strength steel belong to the automobile lightweight mode. The steel and aluminum composite plate is made of steel plate as the center and aluminum composite material on both sides. It has the advantages of light weight, steel saving, corrosion resistance, high stiffness, but also applicable to all aspects of the automobile, is the future development trend.

Third, new technology of coating process for automobile stamping steel

1. Anti-rust treatment

In order to avoid the occurrence of rust in automotive steel, manufacturers conduct anti-rust treatment on automotive process materials. Generally, a layer of anti-rust primer is sprayed on the cold-rolled sheet to increase the anti-rust performance of the cold-rolled sheet.

2, variable painting

Compared with the traditional electrophoretic coating process, this process can paint different types of body components at the same time, so as to achieve different material requirements for different parts of the body. Through the improvement of variable coating, different materials of automotive stamping steel materials can achieve higher quality appearance and durability at the coating.

3. 3D printing technology

3D printing technology is a new technology that can manufacture highly complex automotive parts, and can realize the rapid production of steel samples, which is of great significance to accelerate the innovation and development of steel coating processes and materials.

Fourth, new technology of coating materials for automobile stamping steel

1. Water-based paint

Water-based coatings have been widely used in the field of automobile coating because of their advantages of environmental protection and high quality. Compared with traditional solvent-based coatings, water-based coatings have lower volatility, which can significantly reduce the environmental pollution of automobile painting and the health hazards of painting workers.

2, powder coating

Powder coating is a new type of coating that has appeared in recent years. Different from the traditional solution coating, powder coating is a solid coating that is evenly coated to the automobile steel by spraying machine. Powder coating has the advantages of environmental protection and pollution-free, high utilization rate of coating.

In general, the coating process and materials of steel used in automobile stamping play a crucial role in the quality and performance of automobile manufacturing. With the continuous progress of science and technology, new technologies and materials continue to emerge, accelerating the innovation and development of automotive coating technology. Manufacturers should pay close attention to the development of relevant technologies and constantly seek new innovations to provide higher quality, greener and more advanced materials and coating processes for the automotive industry.