Aluminum die-casting is a kind of die-casting parts. It uses a die-casting mechanical die-casting machine equipped with a casting mold to pour the heated liquid aluminum or aluminum alloy into the inlet of the die-casting machine. The die-casting machine is die-casted and the mold is cast out. The shape and size of aluminum parts or aluminum alloy parts, such parts are usually called aluminum die-casting.
Aluminum die-casting has different names in different places, such as aluminum die-casting parts, die-casting aluminum parts, die-casting aluminum parts, die-casting aluminum, aluminum die-casting, aluminum alloy die-casting parts, etc.
Because metal aluminum and aluminum alloy have good fluidity and plasticity, and the casting process is cast in a pressure die-casting machine, aluminum die-casting can be made of various more complex shapes, and can also be made with higher precision and smoothness. , Thereby greatly reducing the machining amount of castings and the casting margin of metal aluminum or aluminum alloy, which not only saves electricity, metal materials, but also greatly saves labor costs; aluminum and aluminum alloys have excellent thermal conductivity, Smaller specific gravity and high processability; thus aluminum die casting is widely used in automobile manufacturing, internal combustion engine production, motorcycle manufacturing, electric motor manufacturing, oil pump manufacturing, transmission machinery manufacturing, precision instruments, landscaping, power construction, architectural decoration, etc. industry.
Aluminum die-casting can be manufactured as aluminum die-cast auto parts, aluminum die-cast automobile engine pipe fittings, aluminum die-cast engine cylinders, aluminum die-cast gasoline engine cylinder heads, aluminum die-cast valve rocker arms, aluminum die-cast valve seats, aluminum die-cast power accessories, aluminum die-cast motor ends Cover, aluminum die-cast housing, aluminum die-cast pump housing, aluminum die-cast construction accessories, aluminum die-cast decorative accessories, aluminum die-cast guardrail accessories, aluminum die-cast aluminum wheels and other parts.
The four basic processes in the die-casting aluminum industry are annealing, normalizing, quenching and tempering. These four processes are called the "four fires" in die-casting. In the process of die-casting, the relationship between quenching and tempering is very close. , Both are indispensable.
Annealing is to heat the workpiece. When it is heated to an appropriate temperature, the die-casting is slowly cooled according to the different materials used, and the internal structure of the metal is close to equilibrium. Normalizing is to heat the workpiece to a suitable temperature and then cool it in the air. It is mainly used to improve the cutting function of the material, and it can also be used to end die-casting of some parts that are not required. Quenching is to heat and heat the joint building and quickly cool it in a quenching medium such as water or other inorganic salt solutions. After this process, the steel parts produced will become hard and also make the steel parts brittle. In order to reduce the brittleness of steel parts, the quenched steel parts can be placed at a temperature below 650 degrees Celsius and higher than normal temperature for long-term heat preservation, and then cooled, which is called tempering.
Application of Aluminum Die Castings Aluminum materials and aluminum alloys have good fluidity and plasticity, so various complicated and difficult die castings can be made. Castings made of aluminum alloys and metal aluminum have high precision and surface finish. This greatly reduces the amount of machining of castings, greatly reduces labor intensity, and saves electricity and metal materials. Because of its high internal and external quality, aluminum die castings are widely used in automobile manufacturing, internal combustion engine production, motorcycle manufacturing, motor manufacturing, transmission machinery manufacturing, precision instruments, landscaping, power construction, and other industries , Has become the new favorite of the die-casting industry.