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Anonymous users2024-02-11LF furnace (ladle furnace) is the ladle refining furnace, which is the main off-furnace refining equipment in steel production. LF furnace generally refers to the refining furnace in the steel industry. In fact, it is a special form of electric arc furnace.
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Anonymous users2024-02-10lf(ladle
furnace is a refining equipment developed in Japan in the early 70s. Because of its simple equipment, low investment cost, flexible operation and good refining effect, it has become a rising star in the metallurgical industry, and has been widely used and developed in Japan. The refining of the LF furnace mainly relies on the white slag in the barrel, in a low-oxygen atmosphere (oxygen content of 5%), blowing argon gas into the barrel for stirring, and the graphite electrode heats the molten steel through the primary furnace for refining.
Because argon stirring accelerates the chemical reaction between slag and steel, temperature compensation with arc heating can ensure a longer refining time, so that the oxygen and sulfur content in the steel can be reduced, and the inclusions are rated as O O 1 according to ASTM. The LF furnace can be combined with the electric furnace to replace the reduction period of the electric furnace, and can also be combined with the oxygen converter to produce high-quality alloy steel. In addition, the LF furnace is also an indispensable equipment for controlling the composition, temperature and preserving of molten steel in the continuous casting workshop, especially in the alloy steel continuous casting production line.
Therefore, the emergence of LF furnaces has formed a new combined production line for the production of high-quality steel in LD-LF-RH-CC (continuous casting). In this combined production line, the reduction refining of steel is mainly done by LF furnaces. The steel grades processed by the LF furnace involve almost all steel grades from special steel to general steel, and different process operation systems are adopted according to the needs of quality control in production.
Among the various secondary refining equipment, the comprehensive cost performance of LF furnace is high.
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Anonymous users2024-02-09The LF furnace is a new type of refining equipment that appeared in the early 70s, and it has the following uses:
1) The LF furnace is connected to the electric furnace, which accelerates the production cycle of the electric furnace and improves the quality of the electric furnace steel.
2) The LF furnace is connected to the LD converter, which can reduce and refine the converter steel, so it can improve the quality of the steel and produce it.
Produce new steel grades.
3) The LF furnace can strictly adjust the composition and temperature of the molten steel, which is beneficial to the hardenability of the steel and the continuous casting of special steel.
4) The LF furnace can heat and keep the molten steel warm and store the molten steel for a long time, which can ensure the smooth continuous casting.
carried out, so it is an indispensable equipment for the continuous casting workshop.
5) LF furnace has the performance of insulating molten steel, and can use a small furnace to produce large steel ingots, or a furnace of molten steel.
Cast into several spindles of different compositions.
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Anonymous users2024-02-08LF ladle refining furnace was first developed and used by Japan's Dacha Lutong Iron and Steel Company. The company replaces the reduction refining period of the electric arc furnace with LF furnace smelting, thereby reducing the refining burden of the electric arc furnace and increasing the productivity of the electric arc furnace. In the early stage of the development of LF furnace, it was only used for the production of high-grade steel, but with the development of metallurgy, continuous casting and related control technologies, the application range of LF furnace was expanded.
Due to the advantages of LF furnace with low investment, wide use and good refining effect, in recent years, LF furnace has been used as the main buried refining method outside the furnace at home and abroad.
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Anonymous users2024-02-07Receive the production plan in real time, and organize production according to the plan dynamically.
Real-time data tracking of LF furnace production by heat.
Through the rough calculation of the metallurgical model, Yanwang realizes the optimization of the operation process and provides operation guidance to the operator.
The LF furnace operation data is provided in the downstream process.
Provide process personnel with historical traceability of production data.
Then the name of this problem shouldn't be called a secret technique, just say the trick.
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