مدونة

After melting and refining of casting aluminum alloy, in the process of subcontracting and degassing, aluminum water is taken out from the subcontract, time before and after adding aluminum flux, nitrogen flow of rotating degassing aluminium and converter speed are rotated. Degassing time, diameter and height of graphite rotor. The density of molten aluminum is […]

Theoretically speaking, the purity of aluminium alloy melt should reach a high level after refining in furnace, online degassing and slag discharging. However, the actual results are usually not ideal. One of the important reasons is that the aluminum liquid passes through the washing tank. Slagging and suction conditions during casting. At this time, the […]

At present, online degassing of molten aluminum is widely used for molten aluminum purification. The on-line degassing equipment produced by Adtech is installed between the furnace and the casting machine to eliminate hydrogen and other residues in molten aluminum and its alloys, which affect their quality and mechanical properties. The average degassing efficiency was 60%. […]

At present, the main way to remove slag is to spray them with aluminum flux refining such as KCl, and spray them through the slag tube under pressure. After the aluminum melts. In the specific production, it is necessary to strictly control the powder spraying amount and spraying time, and standardize the operation, so that […]

The refining of cast aluminum alloys uses compounds for degassing and slag removal. Refining is an important process step in the process of aluminum alloy casting. It can degass, purify and refine aluminum alloy. It can also improve the plasticity and toughness of cast aluminum alloy and prepare for precipitation hardening. Cast aluminum alloy has […]

الألومنيوم معدن شديد النشاط، يتفاعل بسهولة مع بخار الماء أثناء عملية الصهر لتكوين الهيدروجين وشوائب الأكسيد (Al₂O₃). وتُعد هذه الشوائب غير المعدنية ضارة جدًّا بأداء منتجات الألومنيوم. لذلك، يُعد تنقية الألومنيوم المنصهر إحدى الطرق الرئيسية لتحسين جودة منتجات الألومنيوم. [...]

The ingot produced by hot top casting for aluminum has good internal quality, uniform structure, and high mechanical properties, especially the edges of the ingot. This is because the effective crystallization height of the hot top mold is very small, the cooling rate of the ingot is increased, the liquid cavity of the ingot becomes […]

The main function of the casting system in the strip casting and rolling production line is to transport the liquid aluminum from the holding furnace to the feed nozzle, remove the oxides and gases in the aluminum liquid, and keep the metal pressure in the feed nozzle unchanged, ensuring molten aluminum can be smoothly continuously […]

In the continuous casting and rolling process of the slab, the liquid metal uses the static pressure of the liquid level of the front box to continuously deliver the liquid metal to the roll gap through the feed nozzle. When the metal melt gushes from the feed nozzle and the casting roll, the surface touches, […]

The production practice of aluminum alloy has proved that hydrogen is a gas that can be dissolved in large amounts in aluminum or aluminum alloy, and the gas with greater solubility in aluminum alloy. All kinds of cast non-ferrous metals have the characteristic of absorbing gas. The solubility of the absorbed gas increases rapidly with the […]