How to make the aluminum liquid in the round graphite crucible solidified without holes in the middle?
Aluminum water is melted and silicon is added. It should be noted that the surface of the aluminum should be cleaned before making the silicon. The broken silica fume should not be added, and the process of mixing silicon should be properly stirred. After a good silicification, a certain amount of aluminum ingot is used as a cooling material, because the temperature of the silicon will be higher, and the cooling material will be higher.
Until the expected weight of ycl35 is reached. Appropriate mixing and Bahui melting process.
The aluminum ingot into the melting furnace melting, attention should be paid not to slow the furnace, it is best to first put a small amount of aluminum ingot into water, and then cast part of the water into the re cast.
