What is the method of alloy precision die casting ?

1.Die casting process history

Metal die casting process is a high-precision high-pressure metal casting process and a precision casting method. In 1964,

Japan Die Casting Association defined die casting as a method of producing high-precision casting surface with high precision in a short time. The United States says die casting is die casting, the United Kingdom is said to be the pressure of die casting, and the familiar general domestic industry is Japan, which is called die casting. The castings produced in the die casting process are called die castings.

2. die casting requireement and application fields

Hardware die casting is a casting method used for precision casting. The dimensional tolerance is very small and the surface accuracy is very high. In most cases, the castings are not returned and assembled, but the threaded parts can be cast directly. From general camera parts, typing parts, electronic calculators and accessories and other small parts, as well as transportation tools with complex parts such as automobiles, motorcycles and aircraft are mostly made by die-casting method.

3. Die casting production procedure

The tensile strength of these materials is almost twice that of ordinary cast alloys. It has a more positive impact on the production of aluminum alloy hub frame. Die casting is a casting method, which integrates the liquid gold into the cavity and fills the mold at high speed to solidify the liquid alloy under pressure. Die casting is different from other casting methods of high pressure and high speed.

Liquid metal fills the mold cavity under pressure and crystallizes under high pressure. The common pressure is 15 ~ 100MPa.

The liquid metal filling the cavity at high speed is usually 10 – 50 m / s, and some can exceed 80 m / s. therefore, the filling time of liquid metal is very short, about 0.01 to 0.2 seconds.

Die casting machine, die casting alloy and die casting die are the three main factors of die casting production. The three elements of casting process are organically combined to make stable rhythm and efficient appearance and internal quality production, good size meet the requirements of qualified casting drawings or agreements, and higher quality castings.