Ceramic Filter Cameroon Aluminum filtration efficiency is closely related to its correct installation and use. It is also necessary to prevent re-contamination of the filtered clean aluminum liquid.
The size of the ceramic foam filter plate must be selected according to the flow range of the specific casting type, the maximum level of the metal during the filtration process, the total filtration volume, and the cleanliness of the original aluminum liquid.
The pre-melting filtration treatment cannot be ignored:
Such as ordinary slag from aluminum melting furnace and holding furnace, cleaning furnace; furnace refining. In particular, an online degassing device is still needed, because it not only reduces the hydrogen content of the melt, but also removes some non-metallic inclusions.
The filter plate must be compatible with the square refractory block:
The two are suitable for sealing to prevent the metal from flowing into the casting box from the gap without being filtered, and also avoid the foam filter plate from floating in the aluminum water due to the light weight.
Preheat to remove moisture and facilitate initial transient filtration. Electric heating or gas heating can be used for preheating. Normally, it takes about 15 minutes.
In the normal filtering process, no slag is needed to avoid knocking and vibrating the filter plate. At the same time, the washing tank should be filled with molten aluminum, so as not to worry too much about molten aluminum.
After casting, drain the metal in the flow cell and filter plate. There is a vibrator abroad, which is placed on the filter plate and shaken for one minute to shake off about 75% of the remaining liquid metal from the filter plate.
Finally, clean the periphery and remove the filter plate after curing.
At the same time, due to the Ceramic Filter Cameroon Aluminum filtration process, the conventional and necessary measures taken to reduce the generation of inclusions in process operations such as smelting, furnace treatment, and casting cannot be ignored.
Cameroon exported 14,900 tons of aluminum ingots in the first quarter of 2021, down 34.7% from the same period last year, reflecting the current difficult situation of Cameroon’s national aluminum company ALUCAM, the only aluminum ingot producer in the CEMAC region of the Central African Economic and Monetary Union.
With the weakening of the impact of the new crown epidemic, the production activities of various departments in Cameroon have gradually recovered, while the production and operation of the national aluminum company ALUCAM has been declining. As the giant of the aluminum industry in the CEMAC region, ALUCAM has shown signs of slowing production at the beginning of the COVID-19 pandemic in the first quarter of 2020. At that time, the epidemic severely disrupted the production activities of enterprises and caused substantial disruptions in international trade.
From the end of 2021 to the end of June, Cameroon’s aluminum industry earned 16.6 billion CFA francs in foreign exchange, which was 9 billion CFA francs less than the same period last year. It accounted for 2% of Cameroon’s overall export revenue during the same period and ranked bottom among Cameroon’s top 11 foreign exchange-earning commodities.
The sharp rise in international raw material prices has led to a decline in ALUCAM’s production and operations. First, the prices of international raw materials needed for ALUCAM production have risen sharply, with professional platform data showing a rise of 52.5%; second, Cameroon’s national financial support, which ALUCAM has relied on for long-term survival, is also in trouble.