مدونة

Ceramic foam filter molten aluminum alloy filtration is the most effective and reliable method for removing non-metallic inclusions. In principle, there are cake filtration and deep filtration. There are many ways to filter, the best effect is foam ceramic filter plate. The deep bed filter is large in size, and it takes time and effort to […]

Aluminum smelting and casting provide billets for plastic processing. The smelting furnace mostly uses gas reverberatory furnace or oil-fired reverberatory furnace, and the general capacity is 20-40 tons or more; resistance heating reverberatory furnace is also used, and the capacity is generally about 10 tons. In order to shorten the furnace loading time, improve the […]

The vertical slab stage is the most critical moment of continuous casting and rolling production. Once the cast rolled vertical plate is successful, as long as the melt source is cut off, the casting and rolling can be carried out smoothly. At the beginning of the cast rolled vertical plate, the temperature fluctuation should be […]

The traditional method mainly uses three steps for scrap aluminum smelting processing. 1. Rough smelting: use a smelting furnace to smelt aluminum scrap containing various impurities; 2. Refining: Refining the molten aluminum after rough refining, adding an impurity remover during the melting process to remove impurities in the aluminum; 3. Processing: the refined aluminum ingot […]

When the metal melting composition is adjusted, the next step is the refining process of molten aluminum. The purpose of aluminium alloy refining is to obtain a high-cleanliness, low-gas content alloy liquid after taking degassing and impurity removal measures. There are several methods of aluminium alloy refining: Add chloride (ZnCl2, MnCl2, AlCl3, C2Cl6, TiCl4, etc.); […]

The floatation method is generally used for degassing. The principle is to pass a certain non-hydrogen-free gas into the aluminum liquid to generate bubbles, and use these bubbles to take the dissolved hydrogen out of the aluminum liquid and escape into the atmosphere during the floating process. In order to obtain a better refining effect, […]

For non-metallic inclusions, molten aluminum fluxes refining can be used to effectively remove them for materials with higher requirements, a filter can be used in the casting process or the melt can be removed by ceramic foam filter filtration through a molten flux layer. For metal impurities, the general treatment method is to turn harmful […]

The silicon phase in the aluminum-silicon alloy eutectic will grow into flakes under spontaneous growth conditions, and even thick polygonal tabular silicon phases will appear. These silicon phases will severely split the Al matrix at the tips and corners of the Si phase. Causes stress concentration at the location, the alloy is easy to crack […]

Hypereutectic Al-Si alloy has a high silicon content, which reduces the thermal expansion coefficient of the alloy and improves wear resistance. It is suitable for wear-resistant parts such as pistons of internal combustion engines. There are tabular primary silicon and needle-shaped eutectic silicon in the hypereutectic Al-Si alloy structure. Primary crystal silicon as a hard […]

The main factors of aluminum alloy modification process are: modification temperature, modification time, type and amount of modification agent. 1. Modification temperature. Higher temperature is beneficial to the modification reaction, the recovery rate of sodium is high, the modification speed is fast, and the effect is good. But the modification temperature should not be too […]