Premium OEM Factories High Quality Die Casting Aluminum, Zinc Alloy Parts Manufacturers
Our high-performance die-castings are born from a rigorous and elaborate manufacturing process. Every step is infused with advanced technology and professional craftsmanship, dedicated to creating products of outstanding quality.
Raw Material Preparation
High-quality aluminum alloys, zinc alloys, and other metals are selected as the base materials. Before these raw materials are put into production, they need to undergo strict quality inspection to ensure that their chemical compositions and physical properties meet high-standard requirements. For example, for aluminum alloy materials, the contents of elements such as aluminum, magnesium, and silicon need to be precisely controlled to ensure that the subsequent die-castings have an ideal strength-to-weight ratio and corrosion resistance. For zinc alloys, the proportion of components such as zinc, aluminum, and copper should be emphasized to ensure excellent casting performance. The qualified raw materials are processed into ingots of specific specifications for subsequent smelting in the furnace.
Smelting Process
The ingots are put into an energy-efficient and high-performance furnace and smelted in a precisely controlled temperature environment. Through an advanced temperature control system, the temperature in the furnace is stably maintained above the melting point of the metal to ensure that the metal is completely melted into a uniform liquid state. During this period, an appropriate amount of refining agent is added to the furnace to remove impurities and gases in the liquid metal, purify the molten metal, and improve its purity. For example, when refining aluminum alloy, adding a refining agent can effectively reduce the hydrogen content in the molten metal, reduce the internal porosity defects of die-castings, and improve product quality.
Die-Casting Molding
The smelted molten metal is quickly transferred to the injection chamber of the die-casting machine. The die-casting machine adopts advanced precision die-casting technology. Through high pressure, the molten metal is injected into the carefully designed mold cavity at an extremely high speed. The mold is made of high-grade steel and undergoes special heat treatment, having excellent wear resistance and thermal stability. Under high pressure, the molten metal quickly and evenly fills every fine structure of the mold cavity, accurately replicating the mold shape and completing the precise casting of complex shapes. This process not only requires extremely high precision in the pressure control of the die-casting machine but also requires precise control of the injection time and speed of the molten metal to ensure the molding quality and dimensional accuracy of the die-castings.
Demolding and Preliminary Treatment
After die-casting molding, when the die-casting cools to an appropriate temperature, with the assistance of a demolding agent, it is smoothly removed from the mold. After demolding, the die-casting will undergo preliminary treatment to remove excess flash, burrs, etc. on the surface. This process uses professional grinding equipment and tools and is operated by experienced technicians to ensure that the surface reaches the basic flatness requirement without damaging the main structure of the die-casting.
Post-Treatment Process
To further improve the performance and appearance quality of die-castings, a series of post-treatment processes will be carried out. For example, for die-castings that need to improve hardness and wear resistance, a heat treatment process will be arranged. Through processes such as quenching and tempering, the internal structure of the metal is adjusted to enhance its mechanical properties. For products with surface decoration requirements, surface treatments such as anodizing, electroplating, and painting will be carried out to make the die-castings present a variety of appearance effects to meet the personalized needs of different customers. At the same time, during the post-treatment process, strict quality inspections will also be carried out on the die-castings, including dimensional accuracy measurement, appearance defect inspection, performance testing, etc., to ensure that each die-casting leaving the factory meets high-quality standards.
Through this series of elaborate manufacturing processes, our die-castings, with their excellent quality, precise dimensions, and outstanding performance, provide reliable component solutions for customers in various industries, helping to enhance product performance and innovation and development.
When you are ready to begin your die-casting project, one of the most important decisions you will make is choosing the suitable material. The material you select must be able to withstand the high temperatures and pressures of the die casting process, as well as the demands of your end-use application.
Furthermore, it is important to choose a material that is compatible with the die casting operation you have selected. With so many factors to consider, working with an experienced die-casting partner who can help you navigate the many options and make the best decision for your specific project is essential.
However, aluminium, magnesium, and zinc are three of the most popular die casting materials, as they all are strong and lightweight:
Aluminium alloys
Aluminium is also highly corrosion-resistant, making it an ideal choice for die-cast parts that will be exposed to the elements. Some of its most suitable aluminium alloys for die casting are:
- Aluminium 46100 / ADC12 / A383 / Al-Si11Cu3
- Aluminium 46500 / A380 / Al-Si8Cu3
Magnesium alloys
Magnesium alloys such as AZ91D, AM60B, and AS41B are also well suited for die casting due to their high strength-to-weight ratio. In addition, these alloys offer good resistance to corrosion and wear.
Zinc alloys
Zinc, on the other hand, is an excellent conductor of heat and electricity, making it ideal for die-cast parts that will need to be heated or cooled rapidly.
Die casting is used in a variety of industries and applications. Some of the most common uses for die casting include:
- Automotive industry: Die casting is used extensively in the automotive industry. It’s often used to create engine blocks, cylinder heads, and transmission cases
- Electrical industry: The electrical industry also relies on die casting for a variety of applications. Die-cast parts are used in the manufacture of electrical components such as switchgear, panel boards, and circuit breakers
- Aerospace Industry: The aerospace industry is a major user of die casting. The manufactured parts are used in the manufacture of aircraft and spacecraft components
- Appliance Industry: The appliance also uses this process to manufacture die-casted parts for many appliances
- Furniture Industry: It is also used in the furniture industry. It’s often used to create furniture hardware such as drawer pulls and knobs
Many other industries use die-casting processes for medical, construction, and toy industries. It is a versatile process that can be used to create various parts and products.