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In order to make aluminum and its alloys pure, with less gas and inclusions, the molten aluminum or aluminum alloy is refined (or called purification). The melting temperature of aluminum and most aluminum alloys is 700~750℃, and the casting temperature is slightly lower than the melting temperature. Melt refining is to remove gases, oxides and […]

Al-Si alloy has many inherent advantages, which determine its increasingly important position in the industry and more and more extensive applications. However, the main defects such as pores, inclusions and impurities in aluminum seriously affect the quality of aluminum alloy and its products. Especially for some high-performance aluminum applications, the impact of these defects becomes […]

The equipment used in the production of aluminum foil, in addition to the melting, casting, rolling, finishing and heat treatment equipment of traditional aluminum alloy rolled products, the most critical is the purification equipment for aluminum. Purification Equipment for Aluminum Under normal circumstances, different aluminum alloy manufacturers will choose the production equipment suitable for their […]

The purification method in which the melt passes through a filter made of neutral or active materials to separate the solid inclusions suspended in the melt is called filtration. The filtration method is the most effective and reliable method to remove non-metallic inclusions in aluminum melt. According to the filtering properties, the filtering method of […]

Due to the limited development of furnace treatment and purification technology, the major research and development objects of major aluminum processing and casting companies in the world are the technology of melting the melt outside the furnace. The main development direction is to continuously improve the purity of the melt and continuously pursue high efficiency […]

According to the way the gas is removed from the melt, people have found many methods, the main ones are the partial pressure method, chemical method, pre-solidification method, oscillation method, direct current electrolysis method, and so on. The partial pressure difference method is the most basic method. It has four types: gas degassing method, boiling […]

Nitrogen degassing is continuously blown into the melt, and the oxidized inclusions and hydrogen are brought out of the liquid surface during the floating of the bubbles. The nitrogen degassing can remove hydrogen, because there is no hydrogen in the inert gas blown into the melt, and its hydrogen partial pressure is zero, while the […]

The primary purpose of degassing in casting is to remove hydrogen from molten aluminum. During the degassing in casting process, other harmful substances such as chemical inclusions or alkaline substances can be removed. AdTech offers the degassing unit for aluminum, it is installed between furnace and casting equipment. The online degassing unit has dual functions: […]

The ceramic foam filter placement method affects the removal efficiency of molten metal impurities. The ceramic foam filter is placed in the runner to filter and purify the liquid metal, which is the most ideal form of use. It is suitable for medium and small castings and large castings. The ceramic foam filter is placed […]

At present, the comprehensive treatment of purification and grain refinement of liquid aluminum is the basic problem for obtaining high-quality aluminum alloy. According to the different production links, the purification treatment of molten aluminum can be divided into treatment in the furnace and treatment outside the furnace. The aluminum alloy furnace treatment can be divided […]