Molded Graphite

Short Description:

Molded graphite is a method in which chopped carbon fibers are mixed with a resin or an asphalt, molded, and then carbonized by heating to form a carbon-carbon composite. Molding is divided into cold pressing and hot pressing. The advantage of this process is that it is easy to obtain a dense, uniform carbon-carbon product. The disadvantage is that the size of the product is limited and the anisotropy is significant. Molding process cold molding process The cold molding process is carried out...


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Molded graphite is a method in which chopped carbon fibers are mixed with a resin or an asphalt, molded, and then carbonized by heating to form a carbon-carbon composite. Molding is divided into cold pressing and hot pressing. The advantage of this process is that it is easy to obtain a dense, uniform carbon-carbon product. The disadvantage is that the size of the product is limited and the anisotropy is significant.

Molding process cold molding process
The cold molding process is carried out according to a graphite molding process and a reinforced paste molding process, and then carbonized at a predetermined heating rate to form a carbon-carbon composite material. Under normal circumstances, the obtained carbon/carbon products have lower density, contain more pores, and the fibers and matrix are crossed, and liquid phase impregnation, carbonization (or graphitization) densification is required, and repeated repeatedly to meet the required requirements. So far.

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Molding process hot molding process
The hot molding is performed under the conditions of heating and pressing, and the molding, curing, and carbonization are completed at one time. This is an effective means of manufacturing high performance carbon-carbon materials, which are characterized by:
1. Prevent the stratification of carbon-carbon products and improve the mechanical properties of carbon/carbon. Since the resin is solidified, a large amount of small molecules are generated during carbonization, and the escape of these small molecules is a separation between the carbon and carbon layers, and the pressure of the pressing can improve the bonding between the carbon fibers and the matrix carbon, and improve the strength of the carbon-carbon material.

2. Shorten the process cycle and improve process efficiency. The use of hot stamping, solidification, and carbonization is done once under heating and pressurization conditions, which simplifies the carbon-carbon material manufacturing process and improves the process efficiency.


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