04 3月 Refine Agent
Refine Agent is an important part of the aluminum liquid refining process with the addition of aluminum alloy reheating material. It removes the gas and slag in the aluminum liquid, and improves the aluminum alloy smelting process to improve the purity of the aluminum liquid
Oxidized inclusions seriously affect the purity of molten aluminum, causing defects such as bubbles, pores, slag inclusion, and shrinkage in castings, which directly affect the performance of aluminum and aluminum alloy materials.
The aluminum alloy casting process usually goes through the process steps of feeding-refining-slagging-standing-casting. The quality of the final aluminum alloy product depends on the gas content and impurity content in the aluminum alloy and the size of the grain size.
Refine Agent removes impurities such as gas and iron in molten aluminum, and the process of purifying molten aluminum occupies an important position in the production process of aluminum alloy.
The prior art adopts one-step refining. The process control of refining and the selection of refining agents are particularly critical for the removal of impurities. Incomplete degassing and slagging will often lead to loose aluminum alloy ingots, slag inclusion defects, and lower product qualification rate. .
How to fully reduce the hydrogen content in the molten aluminum and further remove the iron-containing impurities in the molten aluminum to obtain high-quality aluminum alloy products is a problem that needs to be solved urgently.
Adtech China (www.adtechamm.com) provides a kind of purification technology in molten aluminum melting furnace. The technology includes two refining and three slagging techniques.
The specific process is slagging-refining-slagging-refining-slagging. The first refining is to adjust the temperature at 600-700 degrees, add refining agent, and react for 10-30 minutes.
The second refining is to adjust the temperature to 710-800 degrees, add refining agent, and react for 10-20 minutes.
Among them, the refining agent is added before refining, and during the refining process, powder spraying is used in the furnace for refining, and the powder spraying machine is used to spray the refining agent into the molten aluminum in the furnace, and argon gas is introduced to degas.
This purification technology improves the cleanliness of the electrolytic aluminum liquid, so that the hydrogen content in the processed aluminum liquid is less than 0.125ml/100gAl, and the slag removal rate reaches more than 85%, which reduces the looseness and slag inclusion problems caused by aluminum alloy ingots. Greatly improve the product qualification rate.
For specific matters, please contact Sales@adtechamm.com about the product Refine Agent used in molten aluminum refining.