What is a graphite furnace?
Apr 10,2023
The graphitization furnace is a new type of high-temperature graphitization furnace developed on the basis of its existing horizontal high-temperature graphitization furnace, which is mainly used for the purification of graphite powder. Its use temperature up to 2800, can work continuously for a long time. High production efficiency, energy saving. Through the online temperature measurement and control system, the temperature in the furnace can be monitored in real time and adjusted automatically.
The main purpose of the graphitization furnace: sintering of cemented carbide materials; treatment of negative electrode materials; treatment of graphite powder: carbonization and graphitization of carbon fiber: sintering of contacts, ceramics and parts; sintering of powder metallurgy, tungsten carbide and other products; Under the protective atmosphere, it is fired in the preheating zone, high temperature zone and cooling zone. Main features: working temperature up to 2800 degrees, good uniformity, long constant temperature, low equipment failure rate. The furnace tube has a long service life and continuous production for 20-30 days without stopping the furnace. Equipped with infrared measurement and control system, it can display in real time and automatically control the temperature in the furnace through PID, and the quality is stable. At the same time, the requirements are guaranteed.
Three-phase power supply, three-phase power balance, stable performance. Unlike the single-phase power supply of the carbon tube furnace, the phase voltage is unbalanced, which has a great impact on the power grid and affects the operation of other equipment. Up to 3000, can work for a long time in 2600-2800. Automatic feeding and discharging are controlled by time. The degree of automation is high, the labor intensity of workers is low, and the processing is consistent. Thermal insulation materials with carbon felt, without carbon black. Replacement of carbon tube is convenient, clean and sanitary.
Graphite furnace with push boat way, without stopping the furnace can be continuous production. Unlike the batch (vertical) furnace, each firing does not need to stop the furnace, and the material can be taken out after cooling, which has low efficiency and high energy consumption. The material is in the ship, and the material will not be polluted twice. The quantity is about 1.5kg, the quality can be sampled and tracked in time, the process can be corrected according to the test results, the furnace does not need to be stopped, and the material waste is less. Heating is short, up to 200/hour. The furnace body has good sealing performance and low protective gas loss. All flanges and furnace covers are sealed with sealing strips. The furnace liner and flange are made of stainless steel, which does not rust and has a long service life.
Equipped with a vacuum pump for furnace gas replacement, short ventilation, less gas consumption. Technical parameters Rated power: 120KW; Input voltage: three-phase 380V; Operating temperature: 2800; To high temperature: 3000; Protective gas: argon; Control mode: PID automatic control; Temperature measurement: infrared temperature measurement; Loading and unloading: PLC program automatic feeding; Work: push boat type intermittent feeding, continuous work; Ship size: 126 x 320mm; Cooling: circulating water cooling
In summary, the graphitization furnace can be heated to 3000C in argon, so only infrared thermometers can be used at such high temperatures. At room temperature, there is almost no heat radiation. In order to monitor the heating process of the laboratory graphitization furnace, a plug-in thermocouple can be ordered.
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