Industrial furnaces can reach extremely high temperatures. The specific temperature of an industrial furnace depends on its design and purpose. Generally, ovens operate at temperatures ranging from 250°F to 900°F, while furnaces can reach temperatures of 2000°F or higher.
There are different types of industrial furnaces, including electrical and fired furnaces. Electrical furnaces, such as arc and high-frequency induction furnaces, can generate temperatures over 1800°C (3272°F) and even exceed 3000°C (5432°F) in laboratory units. These furnaces are commonly used for melting alloys and other high-temperature processes. They offer high heat utilization efficiency, no pollution, and clean working conditions.
Fired furnaces rely on the combustion of a fuel source to heat raw materials or finished parts. Gas furnaces, for example, can reach temperatures of about 1400°C (2552°F) when using illuminating gas made from coal and air. When burning natural gas, temperatures can reach 100°C to 200°C higher. By increasing air pressures, using natural gas, and incorporating oxygen, temperatures as high as 2000°C (3632°F) or more can be achieved. The addition of waste heat recuperation or preheating gases can further raise these temperatures.
Different types of industrial furnaces have specific temperature ranges suited for various heat-treating processes. For example, pit furnaces can reach temperatures as high as 2000°F and are used for annealing, tempering, hardening, and other thermal processes. Conveyor belt furnaces can heat up to 2100°F and are designed for continuous heating procedures. Integral-quench furnaces have a batch heating system that reaches up to 1850°F and offer rapid heat transmission and suitable temperature control.
In conclusion, industrial furnaces can reach extremely high temperatures, with electrical furnaces often exceeding 1800°C (3272°F) and gas furnaces achieving temperatures ranging from 1400°C (2552°F) to over 2000°C (3632°F) depending on the fuel source and design. The specific temperature range of an industrial furnace depends on its purpose and configuration.
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