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The basic principle of impurity removal is to use the difference between the density and viscosity of the impurity and the aluminum melt to separate the impurity from the aluminum melt by adding certain elements or using physical methods. Specific methods for impurity removal include filtration, electric flux, electromagnetic purification, and flux refining methods. Filtration […]

Metal purification treatment is a very important link in the production process of aluminum cast-rolled sheet and strip. The traditional aluminum liquid purification process is generally operated in batches in a holding furnace, and nitrogen and chlorine mixed gas and flux are generally used for refining. This purification process is mostly manually operated. The outgassing […]

On-line degassing process is a hydrogen removal process carried out at the same time in the casting process. Since the molten aluminum undergoes hydrogen removal in the holding furnace, the molten aluminum enters the casting machine through the launder and is in contact with air. It can still absorb hydrogen again, resulting in the hydrogen […]

Aluminum Refining in Furnace is an important step in aluminum casting. The reasons why the molten aluminum in the holding furnace needs to be refined mainly include the following four aspects: First, before casting, it is necessary to ensure that the hydrogen content of the molten aluminum meets the requirements of the final product. With […]

The purification of aluminum alloy ingot melt mainly includes the removal of hydrogen from the melt and the removal of oxide inclusions. In the smelting process of aluminum and aluminum alloys, hydrogen is very easy to dissolve in liquid aluminum. In the smelting temperature range, the higher the temperature, the higher the gas solubility, especially […]

Aluminum alloy melting point of metal Mg is 649 ℃, the ignition point of Mg is 500 ℃, which is much lower than the melting point of aluminum 660 ℃. Therefore, during the aluminum alloy smelting process, the metal Mg is easy to burn in the atmosphere of the aluminum smelting furnace, resulting in Mg […]

Compared with conventional size ingots, the difficulty in aluminum alloy casting process of large-scale Al-Mg alloys is that due to the increase in the size of the ingots, the depth of the molten pool increases during the melting process, and the chemical composition of the molten pool is difficult to stir during the mixing process. […]

With the development of various industries in the society, the demand for aluminum alloy has gradually increased, so the aluminium refining process is also particularly important. Aluminium Refining Process Loading. The pre-made alloy ingots and high-quality reheating materials, and then the fol alloy is added, and the alloy elements are added later. Temperature control. Strictly […]

Filtering of Molten Aluminum is a method of removing impurities by letting the aluminum alloy melt pass through a filter made of neutral or active materials, so as to separate solid inclusions suspended in the melt. According to the filtering properties, it can be divided into two categories. The filtering method of molten aluminum can […]

The ceramic filter board is referred to as CFF (ceramic foam filter). Ceramic Foam Filter CFF is a sponge-like product made of aluminum oxide, chromium oxide, etc. CFF has a unique three-dimensional network skeleton and interpenetrating pore structure. PPI is the number of holes per inch of length is used to express its specifications. The […]