Add refining flux of required amount into refining tank and cover it properly, turn on the switch of refining tank and connect nitrogen gas. When refining flux is spraying out of refining iron tube, insert it into the furnace and move all around inside evenly for 2 or 3 times. When powder inside the tank is sprayed completely, first draw out the refining tube out of aluminium liquid, and then switch off nitrogen gas.
2.Refining time:8～15minutes (6～20 ton furnace)
4.Use level 1～3kg for one ton aluminium
It is 2kg a dry and ventilated place. The storage period is one year if plastic bag is not damaged. It can be further used when it is ground into powder and dried under the temperature of 100℃.