1. Properties Features:
Contains rare earth elements like La, Ce, Pr and Nd. The RE
content of AlRE*0 is 9～*1%. It can purify the molten aluminum,
improve the fluidity and the microstructure of Al-Si alloy, and
improve the mechanic, electronic and working properties of
the aluminum cast. Used in electricity industry, RE can notably
reduce the harms caused by the residual siliceous
impurity.
2. Scope of Application:
Apply to the modification treatment of Al-Si alloys which
casting requires longer time or the RE element additive of aluminum
alloys in the smelting.
3. Operation Instructions:
(1). Temperature: **0~**0℃
(2). Dosage: When amounting to 0.*3~0.*5% of the weight of the
molten aluminum, the RE elements will have varied degrees of
modifying and purifying effects on different alloys. The economic
dosage should be decided by experimental results. Suggested dosage
is 0.3~1.5% of the weight of the molten aluminum to be treated for
the first time.
(3). Valid period for modifying: 4~8 hours.
(4). Operation method: Put AlRE*0 nuggets into the
molten Al, stir the melt and keep the melt static for
*0~*0minutes, strip off the dross and cast the testing rod. If the
rod fracture shows normal, the molten aluminum is ready for
casting.
(5). Fracture inspection: Size of testing rod: φ*2×**0. The
rod fracture should normally look like silvery-white plush and
present fine and evenly distributed crystalline grains but no
bright silicon spots.
4. Package and Storage:
Appearance: white metal nuggets.
**0g/pc, *5kg/carton.
Storage:Keep dry and ventilated.
