[China Aluminum Network] The technical requirements of aluminum alloy die casting mainly include mechanical properties, die casting size and surface quality. 1. Mechanical properties: When using die-casting test specimens, the mechanical properties shall comply with the provisions of GB/T15115. When the die casting body test is used, the mechanical properties of the cut-out sample at the designated site shall not be lower than 75% of the single-cast sample. Dongguan aluminum alloy die-casting, aluminum alloy die-casting.
2. Die Casting Size: The geometry and size of the die casting shall conform to the provisions in the casting drawings. The aluminum alloy die-casting die castings shall be in accordance with the provisions of GB6414 for dimensional tolerances. If there are special provisions and requirements, they shall be indicated on the drawings. The dimensional tolerances of die castings do not include cast tilt. When the die casting needs to be machined, the machining allowance should be carried out according to GB/T11350.
3. Surface quality, high dimensional accuracy of castings, and low surface roughness: The surface roughness of castings should meet the requirements of GB 6060.1. Castings are not allowed to crack, undercast, loose, air bubbles and any penetrating defects, as well as scratches, dents, lack of meat and mesh burrs.
Aluminum alloy die casting products are mainly used for traffic signal lamp shell, handle, fishing wheel accessories, outdoor locks, electrical products, communications equipment, kitchen accessories, motorcycle radiator and speaker cover, LED lamp housing, camera equipment, heat sink, auto parts, Electronic communications equipment, electronic game enclosures and other industries, some high-performance, high-precision, high-toughness high-quality aluminum alloy products have also been used in large aircraft, ships and other relatively high demand industries.