Views: 0 Author: Site Editor Publish Time: 2026-08-01 Origin: Site
During the long-term operation at ultra-high temperatures in high-temperature graphitization furnaces, the heating element is one of the components that are most prone to damage. Graphite heating elements, when in long-term service at high temperatures, are prone to resistance value drift, deformation, and even fracture due to the influence of thermal stress concentration and surface oxidation, leading to unplanned furnace shutdowns. The high-temperature graphitization furnace for refined carbon adopts resistive heating. The graphite tube heating element has a long service life, good heating effect and is easy to maintain. This heating element design ensures heating efficiency while reducing the frequency of shutdowns caused by frequent replacement of heating elements. The insulation material of the furnace body is made of high-quality graphite felt, which has a stable structure and low heat loss at ultra-high temperatures, and its insulation performance does not decline after long-term use.
The modular structure design of high-temperature graphitization furnaces is a key technology for reducing maintenance complexity. As a core consumable, the furnace tube will gradually fail due to thermal stress and chemical erosion after a certain period of use and needs to be replaced regularly. Replacing the heating element in a traditional structure requires disassembling a large number of pipelines and insulation layers, which takes a long time. The assembly structure of the refined carbon furnace adopts a modular design. The heating elements and insulation materials can be disassembled and assembled in sections, significantly reducing the equipment downtime. For enterprises that require continuous production, if the heating elements can be replaced quickly, the equipment utilization rate will be significantly improved, and the overall operating costs will be reduced accordingly. The equipment adopts square cage-type graphite rods and rod combination heating, which is convenient for maintenance
The design of the cooling system for the high-temperature graphitization furnace also reflects the consideration of the long-term operational stability of the equipment. The equipment adopts an internal circulation pure water cooling system, with the cooling water recycled to reduce water waste. The high-temperature section of the furnace body is cooled naturally, while the low-temperature section can be accelerated by filling positive pressure inert gas to shorten the production cycle. A comprehensive PLC automatic control and protection system for water, electricity and gas, which monitors the operating status of the equipment in real time and automatically executes the protection program when there is an abnormality. The equipment adopts high-performance medium-frequency contactors to automatically switch the furnace body.
Hunan Jingtan Automation Equipment Co., Ltd. adheres to the principle of invigorating the enterprise through science and technology and continuous innovation, and attaches great importance to cooperation with scientific research institutions and major universities. The company can design and manufacture non-standard equipment according to the requirements of users and provide corresponding process technical support for customers. The vacuum sintering furnace manufacturing center has established process simulation and production systems for vacuum hot-pressing furnaces and graphitization furnaces, intelligent mechanical structure control systems, helium mass spectrometry leak detection and other production and manufacturing auxiliary platforms. With the comprehensive technical advantages of "long service life of graphite tube heating elements, modular maintenance, and intelligent safety protection", Jingcarbon's high-temperature graphitization furnace not only reduces the maintenance burden on users but also continuously provides reliable heat treatment guarantees for the new energy materials and carbon materials industries.
