1. Foundation Constitutes the Core
- Primary material – aluminum chips from alloy parts processing and profile cutting.
- Pure aluminum content – typically exceeding 90%, providing excellent thermal and electrical conductivity.
- Lays the core foundation for subsequent recycling and reuse.
2. Contains Impurities
- Organic residues – cutting fluid residues form a thin oil film on the briquette surface.
- Metal impurities – iron filings, copper filings from processing equipment.
- Non‑metallic impurities – dust, sand, and other particulates.
- Impurities affect purity and reprocessing performance; removal treatment is typically required before recycling.
3. Bonding Auxiliary Ingredients
- Environmentally friendly organic binders – added in some production processes.
- Tightly bond aluminum particles under pressure, improving structural stability.
- Prevent breakage during transportation and storage.
- Binders volatilize and are removed during smelting, with no negative impact on aluminum recycling.
4. Alloy Derived Properties
- Briquettes inherit characteristics of the original aluminum alloy (e.g., aerospace alloys contain Mg, Zn, Cu).
- Retain high strength and corrosion resistance of the source alloy.
- Can be directly reused to produce the same type of alloy parts, greatly improving recycling efficiency.
