Abstract The vacuum carbonization equipment for large-scale high thermal conductivity graphite film independently researched and developed by Chinese technicians was delivered in June this year and has been successfully applied at this stage. The high thermal conductivity graphite film is a high performance new thermal conductive material with a thermal conductivity of up to 1780w (m•k). The market prospect is ten...
The large-scale high-heat-conductivity graphite film vacuum carbonization equipment independently researched and developed by Chinese technicians was delivered in June this year and has been successfully applied at this stage. The high thermal conductivity graphite film is a high-performance new thermal conductive material with a thermal conductivity of 1780 w(m•k). The market prospect is very broad and has received extensive attention in the industry.
The equipment for producing such high-performance thermal materials is not yet mature, especially its vacuum carbonization equipment. At present, the largest furnace used in the market is a small vacuum carbonization furnace with a capacity of 200kg/furnace. The following problems are common:
1. Low output and very high energy consumption per unit;
2. Poor temperature uniformity and unstable quality;
3, tar can not be effectively discharged and collected, more faults, high maintenance strength, high maintenance costs;
4. Low degree of automation, high labor intensity, and high requirements for operators.
In view of the current production demand for high thermal conductivity graphite film on the market, the research team has specially developed a large-scale special vacuum carbonization equipment suitable for the production of this product, which successfully solved the following technical difficulties:
1. The equipment is large-sized. The model successfully developed at present is 1300*1300*2000. The output of single furnace is more than 1500kg, which is more than 7 times that of the small furnace on the market, which greatly improves the production efficiency and reduces the production cost.
2. The effective removal and high-efficiency capture of a large amount of tar volatiles. According to the on-site production situation, the tar capture amount per furnace exceeds 60kg. A large amount of volatile materials cause the equipment produced by many manufacturers to be continuously used, and the equipment is at least continuous. When used more than 5 times, it will not cause pollution in the furnace and vacuum unit, and it is very convenient to clean up;
3, the equipment is well insulated, because a large amount of volatiles often cause contamination in the furnace and insulation materials, affecting the insulation performance, and the equipment uses the latest French insulation technology, after multiple furnaces sintering, practice has proved that the ground resistance is still 2KΩ or more;
The breakthrough of the above technical problems is the key to the success of the equipment. At present, the ultra-high temperature graphitization equipment of the same model and 3000 °C is being developed. The successful development of this equipment will further improve the equipment level of the entire high thermal conductivity graphite film industry.
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