Wholesale Zinc Alloy Lamp Base Parts Die Casting Manufacturers

Structural features and functions of die casting machines for making Zinc Alloy Lamp Base Parts Die Casting

1. Die casting machines are mainly divided into two categories: hot chamber die casting machines and cold chamber die casting machines. The two are different in structure and function, but both are used to fill molten metal into the mold cavity at high pressure and high speed, and solidify it into castings.
Hot chamber die casting machine: The hot chamber die casting machine is integrated with the crucible, and its pressure chamber is directly immersed in the molten metal. This design allows the molten metal to be quickly and stably supplied to the die casting system. Hot chamber die casting machines are usually used for metals with low melting points, such as zinc, tin and lead. Its main structures include crucibles, material pots, nozzle systems, injection parts and hammer heads. When the injection punch rises, the molten metal in the crucible enters the pressure chamber of the material pot through the inlet of the material pot. After the mold is closed, the hammer head is pressed down, and the molten metal is filled from the nozzle head along the channel into the die casting mold cavity to solidify and form, completing a die casting cycle.
Cold chamber die casting machine: The die casting chamber of the cold chamber die casting machine is separated from the crucible. During die casting, the liquid metal is taken out from the crucible of the furnace or the holding furnace and poured into the die casting chamber for die casting. This design allows the cold chamber die casting machine to meet the die casting needs of various non-ferrous alloys and ferrous metals, such as aluminum, magnesium, copper, etc. The structure of the cold chamber die casting machine is more complex, including column frame, frame, injection system, hydraulic system, electrical system, lubrication system, cooling system and safety protection system.

2. Structural features of die casting machine
High-performance hydraulic system: The die casting machine uses a high-performance hydraulic system to control various machine movements and operations, providing the necessary force and precision for clamping, injection and ejection processes. The hydraulic double toggle clamping mechanism is one of the core components of the cold chamber die casting machine. Through the toggle connecting rod system, the thrust of the clamping hydraulic cylinder can be amplified by 16 to 26 times, thereby reducing the consumption of high-pressure oil, reducing the diameter of the clamping hydraulic cylinder and the power of the pump. The hydraulic system can also adjust the ejection force, ejection speed and time of the ejection hydraulic cylinder to ensure that the casting is ejected smoothly from the mold.
Precision injection system: The injection system is a key part of the die casting machine, responsible for injecting the molten metal into the mold cavity at high pressure and high speed. During the injection stage, the molten metal is forced into the mold cavity to fill the entire space and obtain the shape of the mold. This process requires precise control of metal flow and pressure to achieve the required part size and surface finish. The injection systems of hot chamber die casting machines and cold chamber die casting machines have their own characteristics, but both have efficient and stable performance.
Advanced control system: The die casting machine is equipped with advanced control systems and sensors to monitor and adjust process parameters in real time. These systems can optimize production conditions, detect and correct any deviations or defects, and ensure the stability and reliability of the production process. By adjusting parameters such as injection force, injection speed, filling time, mold opening time, pouring temperature and mold temperature, the quality and production efficiency of castings can be further improved.
Flexible mold design: The design of the die-casting machine takes into account the diversity and flexibility of the mold. The cold chamber die-casting machine generally has two pouring positions, eccentric and central, which can be selected when designing the die-casting mold. The mold adjustment mechanism allows the mold thickness to be adjusted within a certain range to adapt to die-casting molds of different sizes. This flexibility enables the die-casting machine to produce castings of various shapes and sizes to meet different market needs.
Good safety protection system: The die-casting machine needs to withstand extreme conditions such as high pressure and high temperature during operation, so the safety protection system is crucial. The die-casting machine is equipped with a variety of safety protection devices, such as protective covers, safety doors, emergency stop buttons, etc., to ensure the safety of operators. The die-casting machine also has automatic protection functions such as overload protection and overheating protection to prevent the equipment from being damaged under abnormal conditions.

3. Functions of die-casting machines
Efficient production: Die-casting machines can achieve fast and efficient production. Its high-pressure, high-speed injection system can fill the molten metal into the mold cavity in a short time and quickly solidify it into a casting. This efficient production method makes die-casting machines an ideal choice for mass production of metal parts.
High-precision processing: Die-casting machines can produce metal parts with high precision and smooth surfaces. By precisely controlling metal flow and pressure, die-casting machines can ensure that the dimensional accuracy and surface finish of castings meet design requirements.