This product is formulated with a variety of salt compounds through dehydration and refining. It can be used for modification of sand casting or thick-walled casting and can deliver good modification performance.
Properties: White powder, 2.5kg/pack.
Applicable to: Hypo-eutectic and eutectic Al-Si alloys with Si content ranging from 6% to 13%.
Processing Temperature: 700℃～730C
Recommended Dosage: 1.0% ~ 2.0%
Features and Benefits:
1. Low processing temperature; good and stable modification effectiveness.
2. More refined casting grains; improved mechanical performance of alloys, especially in terms of plasticity.
Spread a certain amount of the product on the surface of the melts. Keep still for 10 ~ 12 minutes. Stir the melts and allow the product to go into the depth of the melts. After 3 ~ 5 minutes, clean off the slags and cast a rod for fracture testing. When the modification meets the set standards, start to cast.
Insufficient modification: fracture is dark gray, big grain size, visible Si spots.
Proper modification: fracture is silver white velvet-like shape, even grains, no visible Si spots.
Over modification: steel gray fracture and eutectic accumulation due to overdosing.
Packaging and Storage:
Pack in plastic bags with corrugated boxes or woven bags as secondary packaging (20kg or 25kg per box). Store with caution in a dry place and avoid damp