Ceramic foam filter board can effectively remove various inclusions in the aluminum melt and greatly improve the cleanliness of the metal, thereby helping to improve product quality and reduce costs. The productivity has been improved to varying degrees, and the operation is easy, and the process is easy control, does not require excessive investment, and is worthy of promotion and application.
The process and device of foam ceramic filters filtering and purifying aluminum liquid are applicable to all-aluminum production departments, including sheets, strips, foils, bars, pipes, wires, extrusions, forgings, original aluminum ingots, recycled ingots, and continuous casting production of rolling stock, etc.
The quality of aluminum melt is very important, it affects the subsequent processing performance and the quality of the final product to a large extent. Therefore, all countries in the world attach great importance to the purification of aluminum melt.
There are many reasons for aluminum pollution. On the one hand, during the refining process, aluminum is exposed to the atmosphere in the furnace in a molten or semi-molten state, which is prone to oxidation, easily reacts with water vapor to absorb hydrogen, and easily forms various forms of gold inclusions ( Such as lining fragments, chlorides and carbides in flux, and coarse intermetallic particles, etc.
On the other hand, part of the scraps that make up the charge brings some non-aluminum impurities in the circulation process. Because the waste comes from the process waste, geometric waste, and off-plant waste in each process of the factory, the route is different, the composition is complicated, and the quality is poor.
The above-mentioned impurities often cause bubble inclusions in the casting slab, which seriously affects the purity of the metal melt, thereby further affecting the processing performance, mechanical properties, corrosion resistance, and the appearance of the product. Nowadays, there are various methods to remove these. Harmful substances to purify the aluminum melt.
The use of ceramic foam filter board to purify aluminum melt has great advantages in reducing production costs and improving product quality.
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