The best aluminum alloys for sand casting are Al-Mg series casting aluminum alloys, with ZL114A being a typical example.
This alloy, with its magnesium content optimized (0.45%-0.75%), exhibits the following characteristics:
Casting Performance:
No Hot Cracking Tendency: Moderate magnesium content effectively prevents cracks during casting.
High Airtightness: Suitable for complex sand mold structures, ensuring the density of castings.
Good Flowability: When used with quartz sand mold materials (such as quartz sand), this alloy enhances filling capacity and reduces defects.
Mechanical and Corrosion Resistance:
Moderate Strength: Meets the basic mechanical property requirements for sand casting.
Corrosion Resistance: The addition of silicon enhances thermal strength and corrosion resistance, making it suitable for chemical, food, and other fields.
Process Compatibility:
Wide Applicability: Suitable for both conventional sand casting and metal mold casting and pressure casting. Other alloys, such as ZL101A, offer superior mechanical properties, but require higher precision sand casting processes and are less commonly used in ordinary sand casting.
If you have large-scale custom sand casting needs, you can choose to cooperate with Mulan Metal. Mulan Metal has 12 years of experience in sand casting production and processing, and has helped clients in more than 30 countries complete various commissioned sand casting productions, receiving consistent praise. We look forward to your consultation.
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