Die casting is a process of metal smelting and processing. It is a casting method in which molten alloy liquid is filled into the cavity of a steel mold at high speed under the action of high pressure, and the alloy liquid is solidified under pressure to form a casting. It is somewhat similar to " Plastic Injection Molding". The main features that distinguish die casting from other casting methods are high pressure and high speed.
1. What are the characteristics of aluminum alloy die-casting products?
1. Aluminum alloys can be divided into
Four types: rust-proof aluminum (LF), hard aluminum (LY), super-hard aluminum (LC) and forged aluminum (LD)
2. Cast aluminum alloys are divided into different types according to the main alloying elements added.
There are four types of aluminum-silicon series (AL-Si), aluminum-copper series (Al-Cu), aluminum-magnesium series (Al-Mg) and aluminum-zinc series (Al-Zn).
Commonly used brands include ADC12 (A383), ADC10 (A380)
3. Advantages of aluminum alloy die casting
Good product quality: castings have high dimensional accuracy, good surface finish, high strength and hardness. The strength is generally 25~30% higher than that of sand casting, but the elongation is reduced by about 70%. The castings are dimensionally stable and have good interchangeability. It can die-cast aluminum thin-walled and complex castings. For example, the current small wall thickness of zinc alloy die-casting can reach 0.3mm, and aluminum alloy die-casting can reach 0.5mm. High production efficiency: The machine has high productivity. For example, the domestic JIII3 horizontal cold air die-casting aluminum machine can die-cast aluminum 600 to 700 times on average in eight hours, and the small hot chamber die-casting aluminum machine can die-cast aluminum 3,000 to 7,000 times in eight hours on average. Excellent economic effect: Due to the size of the die-cast aluminum parts, the surface is smooth and clean. Generally, it is no longer mechanically processed but used directly, or the processing amount is very small, so it not only improves the metal utilization rate, but also reduces a lot of processing equipment and man-hours. The castings are cheap, and combined die-cast aluminum can be used with other metal or non-metallic materials. , saving both assembly time and metal.
