What Are The Causes Of Sand Holes In Aluminium Alloy Metals?
1. The gas in the aluminium alloy melt cannot be completely discharged, resulting in the formation of gas.
2.Excessive inclusions in the melt, such as impurities or other metal particles, can form inclusion holes.
3.The shrinkage of aluminium alloys during solidification results in the formation of shrinkage holes.
The main causes of sand holes in aluminium alloy metal are as follows:
Excessive gas content: In order to reduce the occurrence of sand holes in aluminium alloy metal, the excessive gas content in the aluminium alloy melt is one of the main reasons for the formation of sand holes, the gas can come from the oxides in the raw materials of aluminium alloys, water, the need for casting process to control the quality of the melt and the solidification process conditions, and to take appropriate process measures and improvement measures.
