Blog

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 […]

Aluminum melt refining process, the refining volume, temperature control, standing time and other factors have an impact on the quality of aluminum alloy melt. Aluminum Melt Refining Process During the smelting process, tools and other factors have an impact on the quality of the aluminum alloy melt. It must be baked before use. It cannot […]

Aluminum smelting process must be strictly controlled, so as to obtain high-quality aluminum alloy castings. With the development of science and technology, automotive, shipbuilding, aviation, aerospace and other manufacturing industries have increasingly higher quality requirements for aluminum alloy castings. In addition to ensuring chemical composition, mechanical properties and dimensional accuracy, castings are not allowed to […]

Aluminum Smelting and Refining: In the process of aluminum alloy smelting, a refining agent is added to the furnace for processing, so it is called “refining”. In aluminum and aluminum alloy melts, refining agents can remove metal impurities, oxides and other oxide inclusions from the melt through physical, chemical or physical-chemical interactions. It is determined […]

During the molten aluminum refining process, the hydrogen atoms dissolved in the molten aluminum undergo migration to the periphery of the refining bubble (Ar or N, etc.), and are adsorbed around the bubble and associated with hydrogen molecules to enter the bubble, and finally float up with the bubble. Kinetic process such as aluminum tapping […]

Melt refining is one of the most common and effective means to obtain clean liquid metal. Obtaining clean aluminum alloy melt is the guarantee and prerequisite for obtaining high-quality aluminum alloy castings. Hydrogen is the main source of stomata in aluminum alloys. Correctly understand the source of stomata (including the source of hydrogen, the way […]