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Carbon fiber tube light quality and painting process
This paper introduces the painting process and quality assessment standard of carbon fiber tube, the most prominent advantage is the light quality.

As one of the basic carbon fiber products, carbon fiber tubes have applications in many fields. With the rapid development of the carbon fiber composite industry, more and more companies are entering the industry, and the quality of the products produced varies due to the differences in the technology mastered. Here Coreco would like to introduce some of the quality assessment criteria for carbon fiber tubes.

The light quality of carbon fiber tubes

Carbon fiber tubes are increasingly used to replace metal tubes, mainly due to the excellent weight reduction and mechanical properties of carbon fiber composites. The tensile strength of carbon fiber pipe is several times higher than steel, but less than 1/4 of its weight, and carbon fiber composites can achieve better mechanical properties by changing the layup design.

The most prominent advantage of carbon fiber tubes over metal tubes is their light weight, which is why more and more equipment is choosing carbon fiber composites for weight reduction. The density of carbon fiber composites is only 1.7g/cm3, compared to 2.7g/cm3 for aluminum and 7.85g/cm3 for steel, which is the starting point for applications such as drones, robotic arms, and automotive components.

 

In addition, carbon fiber tube has the advantages of high temperature resistance, low creep, shock resistance, etc. It will not be subject to temperature changes that lead to changes in product accuracy, which is very important for products with high accuracy requirements, such as guide rolls, space telescope barrels, etc.

To get high quality carbon fiber tubes, good equipment and technology are needed, and attention should be paid to strict control in each production step.

 

Painting process of carbon fiber tube

 Carbon fiber was originally used in sports equipment, and due to its excellent performance, it is widely used in high-end fields such as aerospace. With the continuous development of carbon fiber production technology, more and more fields are beginning to apply carbon fiber composites. Carbon fiber tube needs to go through several steps from the beginning to the final production and molding, today Coreco introduces you to the painting process of carbon fiber tube.

 

After the carbon fiber tube is cured in a hot press or hot press, the surface of the carbon fiber tube needs to be processed with sandpaper or sanding equipment, the purpose of this step is to make the surface of the carbon fiber tube flat. After grinding, there will be a lot of debris attached to the surface of the carbon fiber tube, you can choose to use water or cleaning agent to remove the surface debris.

 

When the surface of the carbon fiber tube moisture completely dry, according to the shape of the carbon fiber tube to design the path of the spray gun to spray paint, in the spraying time to pay attention to the paint evenly. General carbon fiber tube to be sprayed three times: primer, color paint, surface transparent paint, each spray needs to be baked once. In the process of painting found in the carbon fiber tube surface paint particles or dents and other defects, need to be sanded or filled until the surface is smooth, so that the carbon fiber tube painting steps are completed.

 

In the process before and after painting, there are also steps such as cutting, sandblasting, sanding, etc., which require a lot of labor and time, so the production cycle of carbon fiber tubes and other carbon fiber products is relatively long.

 

CORECO is a professional manufacturer and exporter of carbon fiber rollers. Our products are widely used in the nonwoven, converting, printing and textile industries. We are always at the forefront of developing the latest technology to provide customized solutions to our customers.