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The high-frequency furnace is heated by a high-frequency electromagnetic field generated by a tube oscillating circuit, and then applied to the sample to induce an eddy current (eddy current) to generate Joule heat, so that the sample rapidly heats up and melts, so it is called high. Frequency induction furnace.
High-frequency induction is an advanced heating method because high-frequency power output is only available when the sample is burned. After the combustion is completed, the high-frequency induction stops. After the high-frequency furnace is started, it is not necessary to warm up the preheating time, and the sample can be analyzed at any time.
The high-frequency furnace has very good combustion performance, the carbon-sulfur conversion rate is higher than that of the tube furnace, and the carbon can be considered as up to 100%. According to the relevant information, the sulfur can reach more than 99%.
The outstanding advantage of the high-frequency furnace is the adaptability to the sample, especially for the tube furnace, the special material that the arc furnace is difficult to burn, such as stainless steel, high chromium, high manganese steel, electrothermal alloy, intermediate alloy, pure metal (Ni, Co, Cu, etc., ferrosilicon in ferrosilicon, ferrochrome, ore, slag, sinter, oil shale, graphite, tungsten carbide, rare earth materials and various non-metallic raw materials, etc., have good combustion effects.
The high-frequency furnace has stable combustion performance, convenient operation and high degree of automation. If it is matched with the infrared analyzer, accurate and reliable carbon and sulfur analysis results will be obtained. In 1989, high-frequency combustion, the infrared absorption method, has been listed as an ISO standard (ISO9556-89, ISO4935-89), which shows the high reliability and technical leadership of this method.
What is a high frequency induction furnace
The high frequency induction furnace is also called a high frequency furnace and is a kind of induction furnace.