The heat dissipation and good appearance performance of aluminum alloy have surpassed the current plastic materials, and the sense of weight brought by its own weight cannot be replaced by plastic.
- Differences in materials:
Die casting aluminum alloy generally adopts ADC12 or ALsi9cu3. Two-car aluminum generally adopts 6063 or 6061.
- The difference in appearance:
Die-cast aluminum is equivalent to the plastic injection molding process and can be manufactured in any shape. The outer shell of the street lamp is generally made of die-cast aluminum. The shape of the same cross-section adopted by the two-car aluminum is small, such as the heat sink of the bulb lamp and the aluminum profile of the door and window.
- Thermal conductivity:
The general conductivity of die-cast aluminum is about 80-90W / M.K, while the thermal conductivity of car aluminum is about 180-190W / M.K.
The cost of die castings and car aluminum are relatively speaking, and are calculated by weight and machining. Calculate costs based on real-time material prices and labor. Relatively speaking, the cost of die-casting aluminum is higher, but the specific situation needs to be analyzed.
- Production efficiency:
The production efficiency of injection molding is definitely higher. In batch production, generally more than 1,000 are produced in a day, and the size is stable, and the shrinkage rate is 0.5%. The aluminum machining has more ingredients, as the name implies, it is aluminum. The efficiency is naturally lower.
Aluminum die-casting is generally widely used in automobiles, street lights, and now the mobile phone industry, and aluminum is widely used in downlights, ceiling lights, doors, and windows.