Pure aluminum ingots are used as raw materials, and the chemical composition is adjusted during the smelting process according to actual production needs. The advantage is that different brands of aluminum alloy liquids can be smelted, and it can adapt to the needs of different products, and the product types are diverse. Before smelting aluminum alloy, the ingredients should be batched according to the requirements. The ingredients should be based on the alloy grade, and the burning losses of various elements in the new materials, recycled materials, and master alloys during the smelting process need to be considered.
The more economical and commonly used smelting method in aluminum alloy smelting is gas furnace melting, which requires: fast melting, short time, and less air intake. The order of feeding not only affects melting efficiency and alloy consumption, but also directly affects the quality of molten aluminum. The principle of feeding materials is: first small and then large, first fusible and then refractory, first less burned and then easy to burn, and finally undergo deterioration.
