On the precision stage of modern manufacturing, die-casting production technology is like skilled craftsmen, shaping liquid metal into various precision parts. There are various types of die-casting production technologies, each with unique "specialties" that shine in different fields.

        The most common one is undoubtedly hot chamber die casting technology. The working method of this technology is quite clever, as it combines the crucible for melting metal with the injection device, and the liquid metal is already ready to take off inside the crucible. When the injection punch is pressed down, the molten metal can quickly and smoothly pass through the gooseneck tube and be injected into the mold cavity. The advantage of hot chamber die casting technology lies in its very high production efficiency, short metal liquid transfer path, and low temperature loss, making it particularly suitable for metals with lower melting points, such as zinc alloys. When manufacturing small, complex parts with high surface quality requirements, hot chamber die casting technology can be easily controlled and quickly produce high-quality products.

        Cold chamber die casting technology is another mainstream process. Unlike hot chamber die casting, its molten metal crucible and injection chamber are separated from each other. When die-casting is required, a certain amount of liquid metal is first scooped into the injection chamber, and then the metal liquid is injected into the mold cavity through high-speed pushing of the injection punch. Cold chamber die casting technology can withstand higher pressures and handle metals with higher melting points, such as aluminum alloys, magnesium alloys, etc. For manufacturing large, unevenly thick and thin parts, cold chamber die casting technology relies on strong pressure to ensure that the metal liquid fully fills every corner of the mold, producing parts with sturdy structure and reliable quality.

        There is also vacuum die casting technology, which focuses on optimizing gas issues during the die casting process. During die casting, air often remains in the mold cavity, which mixes into the molten metal and forms pores, affecting the quality of the parts. Vacuum die-casting technology extracts the air from the mold cavity before die-casting, creating a nearly vacuum environment for the molten metal. In this way, the metal liquid injected into the mold cavity becomes denser, reducing defects such as pores and greatly improving the strength and performance of the parts. It is commonly used in the manufacturing of parts with strict requirements for airtightness and mechanical properties.

        In addition, semi-solid die casting technology is also constantly developing. This technology involves heating the metal to a semi-solid state where solid and liquid coexist before die-casting. Metals in a semi-solid state possess both solid stability and liquid flowability, with moderate viscosity. They are less prone to eddy currents and gas entrapment during the die-casting process, effectively avoiding defects such as porosity and shrinkage, and producing parts with uniform structure and excellent performance. They have gradually emerged in the manufacturing industry.

        These die-casting production technologies each have their own strengths and play a key role in different fields of manufacturing, jointly promoting the development and progress of precision parts manufacturing.