Carbon fiber is widely used due to its superior strength to steel and good weight reduction effect. Carbon fiber pipe is the main application form. Usually, carbon fiber pipe will have certain defects, so how to improve the quality of the pipe is particularly important.
For the quality of carbon fiber pipes, you must first understand the causes of defects in carbon fiber pipes. Generally, the surface defects of carbon fiber pipes mainly include wrinkles, streaks and other problems. The reason behind the trace is mainly concentrated in the prepreg layering process. During the layering process, if enough tension is not applied to compress the prepreg layering quickly, each layer of prepreg will be relatively loose and the overall thickness will be reduced. It will also increase, but if pressure is applied, it will bring shrinkage force, causing the carbon fiber to bend and fold. Moreover, some auxiliary materials will be needed when the prepreg is laid out, and these auxiliary materials will also cause wrinkles when compressed.
During the laying process of carbon fiber prepreg, pre-pressure is combined with temperature. Generally, pre-pressure is performed at a certain temperature after every few layers. This timely pre-pressure can prevent the accumulation of fiber relaxation layer by layer.
The resin content and pipe thickness in carbon fiber composite materials can be effectively controlled. Secondly, it is also important to select a suitable mold. The selection of the mold has a great impact on the outer diameter. The material for making the core mold also needs a metal with good rigidity. material to improve the density and rigidity of carbon fiber pipes. In addition, the heat shrink process can also be used to improve the surface quality and precision of carbon fiber pipes.