The melting point of copper is approximately 1085°C (1985°F). To melt copper, a furnace must be capable of reaching and maintaining this temperature. In industrial settings, various types of furnaces are used, including three-zone furnaces and medium frequency induction furnaces.
In a three-zone furnace, the first two zones are set below the melting point of copper to pre-heat the materials. The third zone is set to a temperature just 10-15°C above the melting point of copper, which is around 1095-1100°C (1993-2012°F). This configuration allows for precise control over the melting process, minimizing the time the copper spends at its melting point and facilitating better control over the flow of the molten copper.
Medium frequency induction furnaces are also commonly used for melting copper and its alloys. These furnaces can reach temperatures close to 2000°C (3632°F), which is well above the melting point of copper. The induction heating method, based on electromagnetic induction, generates heat directly in the metal, making the melting process efficient and controllable.
When using medium frequency induction furnaces to melt copper alloys, it is important to follow specific operational procedures, such as the materials feeding principle and the melting sequence, to ensure the quality and efficiency of the melting process.
Overall, to melt copper effectively, a furnace must be capable of reaching at least 1085°C (1985°F) and should be designed or configured to handle the specific requirements of melting copper, such as the use of three-zone or induction heating technologies.
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