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In the casting tip and nozzle cavity, not only the phenomenon of reaction dross, but also the deposition of fine inclusions in the melt. When the casting speed of the continuous casting and rolling process reaches 7 m/min, the flow field inside the casting tip and nozzle cavity becomes more complicated with the increase of […]

According to the purification mechanism, the treatment in the furnace can be divided into two categories: adsorption purification and non-adsorption purification. The adsorption purification relies on the adsorption of the refining agent to achieve the purpose of removing oxide inclusions and gases. Among them, the flux used in the argon spray powder flux method is […]

At present, the secondary aluminum industry generally uses simple processes and low-cost refining agents to purify the aluminum melt, thereby improving the recovery rate of molten aluminum scrap and the quality of the melt. Aluminum has the advantages of light specific gravity and high strength. Pure aluminum has excellent electrical and thermal conductivity. The surface […]

Die-cast aluminum alloy is easy to get gas and oxidized during the smelting process. During the continuous melting process, oxidized slag will be generated on the surface and inside of the molten aluminum. The smelting raw materials are divided into aluminum ingots and recycled materials. The slag content of recycled materials is higher than that […]

Because inclusions have a strong affinity with hydrogen, the hydrogen in the molten aluminum tends to be adsorbed in the inclusions. Therefore, once a large number of inclusions are contained in the molten aluminum, the hydrogen content will increase and it is difficult to remove. Therefore, the purification process of molten aluminum requires degassing and […]

Influence of Inclusions and Hydrogen Content in Melting Process on Mechanical Properties: During the melting process, the inclusions and hydrogen content in the molten aluminum have a greater impact on the mechanical properties. The more slag and hydrogen content in molten aluminum, the lower the density of the casting, the worse the mechanical properties, and […]

The bubble floatation method is divided into single-pipe air blowing method, multi-hole air blowing method, fixed blowing method and rotary blowing method. The single-tube air blowing method is an earlier air blowing refining method. Because of its simple equipment and simple operation, it is usually adopted by micro-small aluminum alloy casting enterprises. However, in this […]

Aluminum-silicon alloy has good mechanical properties such as low density, dimensional stability, good wear resistance and high specific strength, as well as excellent corrosion resistance, so it is widely used in casting industries such as automobiles and aerospace. The application of computer batching software provides a technical basis for precise control of the chemical composition […]

Due to the relatively active chemical properties of aluminum, it easily reacts with water vapor in the atmosphere to form hydrogen and oxidized inclusions, which enter the aluminum liquid. Therefore, defects such as pinholes, inclusions, shrinkage holes, etc. are easy to occur in aluminum castings, which greatly reduces the internal quality. Therefore, obtaining clean aluminum […]

The single-stage filtration method has its own advantages and limitations in terms of CFF filtration mechanism, filter size, filtration efficiency, life and cost of use. The use of multi-stage combined filtration methods can make up for their own shortcomings while playing the advantages of single-stage filtration. Application forms include filter combinations with the same filtration […]