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Cracks defect in casting is a common problem. The main reason for the cracks is that the temperature difference between the surface and the center is large during the casting and rolling process in the casting and rolling area. The surface layer is not easy to deform due to the low temperature of the surface […]

Tropical defect in continuous casting is that the liquid metal aluminum in a certain part of the casting and rolling area, only completes the crystallization process, but is not affected by the roll casting, and is brought out by the casting roll in the solidification state. Tropical Defect in Continuous Casting Causes When the temperature […]

The aluminum strip continuous casting and rolling process is an advanced production process introduced from abroad in the 1980s. Continuous casting is a process of casting and rolling. The liquid metal aluminum is continuously supplied from the casting source of the casting roll through the caster tips and nozzles, and the cast-rolled sheet is cast […]

Continuous casting and rolling method has simple equipment and low investment. For the production of certain aluminum alloy grades, it can replace the traditional hot continuous rolling method of aluminum ingots with large investment and high cost. It can not be cast and rolled by aluminum ingot rolling. The resulting fine microstructure is more suitable […]

There are mainly two purification methods for removing impurities: flux method and molten aluminum filtration method. Due to the interaction between inclusions and hydrogen in liquid aluminum, hydrogen removal and purification methods for aluminum have varying degrees of impurity removal. Because the degassing method used to remove impurities is very limited, a molten aluminum filtration […]

Casting molten aluminum is an important step to obtain qualified castings. In order to prevent and reduce casting defects, the following matters should be paid attention to during pouring. Before pouring molten aluminum, carefully check the molten aluminum temperature, ladle capacity and the dryness of surface coating, as well as the preparation of other tools. […]

Temperature control in aluminum smelting is very important for aluminum foundry. The melting temperature is too low, which is not conducive to the dissolution of alloy elements and the discharge of gases and inclusions in the refining process. This increases the tendency to form segregation, cold separation and casting shortage, and the castings cannot be […]

Aluminum alloy refining treatment is mainly through a chemical reaction, adsorption, and filtration to reduce the content of hydrogen and Al2O3 in alloy liquid, so as to improve the quality of die casting. The amount of hydrogen and inclusions in aluminum alloy liquid depends on refining agent and refining method. Casting aluminum alloy needs refining […]

Refining flux for molten aluminum is used in furnace by most foundries. The refining of molten aluminum refers to the removal of gas and inclusions in aluminum alloy. As the two processes of aluminum alloy smelting and refining are mostly combined together, they are called refining in production practice. Because the gas in aluminum alloy […]

Aluminum alloy smelting and pouring process is an important link in casting production. Most of the waste is due to improper control of the melting and pouring processes. Strict control of the whole production process of smelting and casting plays an important role in preventing casting defects (such as holes, pinholes, inclusions, cold insulation, casting […]