The melting furnace should try to meet the following basic requirements:
① The melting speed should be fast;
② The ratio of the surface area of the molten pool to the depth of the molten pool should be as small as possible;
③ The temperature of the metal in the molten pool must be uniform;
④ The thermal efficiency of the furnace should be high;
⑤ The process is easy to operate, and all procedures of furnace installation and smelting should be operated by mechanized and automated methods as much as possible;
⑥ The chemical stability and performance of the furnace masonry can ensure the quality of the melt.
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