As we all know, carbon fiber is a new type of fiber material with high stiffness, high tensile strength, low weight, high chemical resistance, high temperature tolerance, and low thermal expansion. It has the characteristics of “outer and soft inside”. Its quality is lighter than that of metal aluminum, but its strength is higher than that of steel. It has corrosion resistance and high modulus. That’s why it’s often called "black gold", popular in aerospace, civil engineering, military, and motorsports, along with other competition sports.
From the simplest carbon cloth, carbon fiber is a very fine fiber, its shape is similar to hair, but hundreds of times smaller than hair. However, if you want to make a product from carbon fiber, you must weave the carbon fiber into a cloth and then lay it on top of one another, then the called carbon fiber cloth is completely made.
The original carbon fiber is a strip, if you weave the strips together then you get carbon fiber unidirectional cloth.
Some people think that the unidirectional cloth is not beautiful enough, then carbon fiber products with marble texture appeared. It’s simple to make, just tile the pieces of broken carbon fiber to the product and apply resin on it, then pump out the air so the fragments will be attached to the surface.
The woven cloth is usually called as 1K, 3K, 12K carbon cloth. 1K refers to the composition of 1000 carbon fiber strips woven together.
Resin is needed to be applied to carbon fiber. If there is no resin coated, the carbon fiber will be very soft to use, you can break 3000 carbon fiber strips by a single hand, but after applying the resin, the carbon fiber will become harder than iron.
There are two ways to apply the resin.
One is to coat the resin before the carbon fiber cloth is glued to the mold. The coated carbon fiber cloth needs to be stored at a low temperature, and then solidify it at a high temperature and a high pressure.
The other one is to apply it whenever you need it. Mix the resin and curing agent, apply it to the carbon cloth, stick it, vacuum it and then place it for a few hours until it’s ready.
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