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Professional Die Casting

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 Process
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HOT CHAMBER DIE CASTING​​​​​​​
Hot chamber die casting can be used with aluminum, zinc, magnesium and other low melting point alloys using our proprietary multi-slide or conventional tooling.
Hot chamber machines contain the furnace while cold chamber furnaces are self-contained, and molten metal must be scooped into a flow sleeve. Through an internal mechanism, it makes the hot chamber faster in both processes. Other benefits of the hot chamber process include reduced porosity and increased die life by using alloys that do not corrode or dissolve the machine under heat or high pressure.
Components of a hot chamber die casting machine
The injection mechanism of the hot chamber machine is immersed in the molten metal. The furnace is connected to the machine through a metal feed system called a gooseneck.
The mold closes and the piston rises, opening the ports and allowing molten metal to fill the cylinder.
Next, the plunger seals the port and pushes the molten metal through the gooseneck and nozzle into the mold cavity, where the pressure is maintained until it solidifies.
The mold opens and the core (if any) retracts. The casting remains on only one half of the mold - the ejection side. The plunger then returns, allowing residual molten metal to flow back through the nozzle and gooseneck.
The ejector pin pushes the casting out of the top mold. When the plunger opens the fill hole, molten metal flows through the inlet to refill the gooseneck.​​​​​​​
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COLD CHAMBER DIE CASTING
Cold chamber die casting is ideal for metals such as aluminum that have a high melting point and are corrosive.
Unlike the hot chamber die casting process, the cold chamber solves the corrosion problem by separating the furnace from the injector components. In the cold room process, the metal is transferred to the jet sleeve manually or automatically through the ladle. The drive of the injection piston forces the metal into the mold - a single operation. This procedure minimizes contact time between the hot metal and injector components, which helps extend their life.

Low melting point alloys can be cast using the cold chamber process, but when you consider the advantages of the hot chamber process, it is often more economical to use the hot chamber method for metals such as zinc and magnesium.

Each different metal has different processes and recommendations.​​​​​​​
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INJECTED METAL ASSEMBLY (IMA)​​​​​​​

IMA reduces manufacturing costs and outperforms most adhesives used for small part assembly and connection. Connect small parts of virtually any type of material, including metals, ceramics, glass, fibers, paper, elastomers, and plastics.

Advantages of IMA
The bond does not require special surface preparation and does not have the peeling or thermal degradation issues common with traditional adhesives
It performs well in harsh environments where only specialty adhesives and a small amount of injection molding resin can maintain its integrity
Part-to-part consistency maintains a tolerance of ±0.05 mm over long-term production runs
The process creates a strong mechanical lock that can withstand high loads (Zamak 3 zinc alloy is the most commonly used bonding material in IMA, with hardness up to 82 BHN, shear and tensile strengths of 31 and 41 kpsi, respectively)
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MULTI-SLIDE DIE CASTING​​​​​​​
Die casting multi-slide processes use four vertical slides in the tool and can produce complex, precise castings. In some cases, up to six slides can be used at angles other than 90 degrees. This die casting mold process is mainly used for small zinc components. We continue to improve our processes to create more complex parts for our customers.

Multi slide tool
It is the design, operation, and die casting machine required to operate a multi-slide die casting machine that differs from a traditional hot chamber die casting machine. Traditional hot chamber die casting uses a two-part tool, making it difficult and expensive to manufacture parts with complex geometries. The multi-slide tool, on the other hand, is designed to use four vertical slides in the tool, enabling the production of complex and precise castings. This technology provides our customers with design freedom to create more precise and complex parts.

Multi-slider tools consist of modules, slides, crossheads and cover plates. Injection of molten metal into each cavity and runner profile is made possible with a cavity or core on the surface of each module.​​​​​​​
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Economy is more affordable
Powder Coating Metallurgical
Powder metallurgy (PM) is a term that covers the many ways in which materials or components are made from metal powders. In general, PM can greatly reduce costs and reduce yield losses in manufacturing by eliminating or significantly reducing the requirement for a metal removal process.

Examples of powder metallurgy coating techniques include:

Surfacing: Provides a thick coating by melting powder and a small amount of base metal. This creates a metallurgical bond.
Thermal Spray: Provides thin coatings by flame spray, plasma spray, high velocity flame spray, detonation gun and similar techniques. Thermal spray typically produces mechanical bonds.
Fluid bed: Dry air suspends the powder in the tank, making the powder act like a fluid. The part to be coated is preheated above the melting point of the powder and then immersed in the fluidized powder to melt onto the part.
 Mould

Surface treatment
If the part requires a decorative finish or corrosion resistance, the part is plated on the exterior surface. To help you choice the best tool and process design, we have listed different options.
 Machining
All our tooling and die casting equipment are standardized globally, and we coordinate our tooling resources globally. This means that no matter where your manufacturing location is located, we support you from concept, rapid prototyping, tooling and pre-production testing stages to full-scale manufacturing. We offer two types of machining processes: multi-slide and conventional.
PLEASE FEEL FREE TO CONTACT US

TEL : 

+86-138-2926-5159

FAX : 

0086-0769-87017050

EMAIL : 

sales@hfl-diecasting.com

WHATSAPP : 

+86-138-2926-5159

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