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Aluminum alloy filtration technology performs secondary purification before the aluminum alloy liquid enters the molding compound. The degassing and slag removal capabilities are very significant. This kind of filtration technology is gradually becoming mature. At present, aluminum alloy filtration technology can be successfully applied to casting production such as sand mold, metal mold casting, low […]

In the aluminum recovery process, CFF ceramic foam filter aluminum filtration is the last purification process close to smelting and casting. Previously, the furnace was refining, lifting, and degassing outside the furnace. Although 60% to 80% of the inclusions and gases have been removed, the finer impurities are still dispersed in the melt, and new […]

After aluminum melting refining in the static furnace for 30 minutes, the bubbles generated by the refining in the melt will carry hydrogen that diffuses into the bubbles and the oxidized slag adhered to the surface during the rising stage of the bubbles overflows the liquid surface. For low-grade products that are generally required, When […]

The smelting of scrap aluminum is usually carried out under the condition of covering flux. The flux can not only protect the metal aluminum from oxidation, but also adsorb the formed oxides to remove these oxides from the aluminum alloy. There are certain requirements for the aluminum smelting flux, that is, the melting point is […]

How to Prevent Secondary Pollution? The longer the casting launder, the greater the probability and degree of secondary pollution. In theory, the purity of aluminum alloy melt should reach a higher level after refining in the furnace and online degassing and slagging. However, the actual results are often not ideal. One of the important reasons […]

The working principle of aluminum casting flux purification is adsorbing and dissolving the oxidized inclusions in the aluminum melt, and floating to the surface of the molten aluminum through the density difference. The aluminum casting flux purification process is a complex multiphase process, which is restricted by many factors, the most important of which is […]

The aluminum casting flux chemical composition is mostly halogen salts, which are heterogeneous inclusions relative to the aluminum melt. After the melt purification is completed, it must be allowed to stand for a period of time to float or settle, and then separate from the aluminum liquid. Taking Na3AlF6 and Na2SiF6 as examples, Na3AlF6 produces […]

As we all know, Alu melt purification is generally divided into furnace purification and online purification according to the time sequence of its purification treatment. Furnace refining refers to the process in which the aluminum alloy melt is refined in the furnace to achieve the effect of purifying the aluminum alloy melt. Its working principle […]

Due to the repeated regeneration of aluminum, the secondary aluminum production process has attracted more and more countries’ attention. With the continuous progress of science and technology, the secondary aluminum industry is developing in the direction of scale, mechanization, automation, specialization, intensification and reduction of environmental pollution. Development Trends of Secondary Aluminum Production Process Actively […]

The purification technology of aluminum and aluminum alloy melt can improve the quality of secondary aluminum. The hydrogen content and non-metallic inclusions in aluminum and aluminum alloy melts have an important impact on the quality of secondary aluminum. Therefore, the aluminum and aluminum alloy melt must be purified. A common method for purifying aluminum and […]