Die Casting

Your Professional Die Casting Supplier

 

Our goal is to become your true partner in the field of die casting in China. Dexun is a global professional manufacturer of Foundry(Casting)&CNC machining products, with new product R&D design center. Our company is committed to applying advanced manufacturing technology and strict quality control standards to every product. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

 

 

 

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Why Choose Us

 

Product Application

Our products mainly include various castings and casting processing, which are widely used in automobile, aerospace, motor, pump, gear motor and other industries.

 

Our Team

We have 32 professional technicians and 14 senior engineers. Professional R&D team of 15 people.

 

Our Certificates

Our company has 2 international certifications, is an ISO9001 and IATF16949 certified enterprise, and operate the PPAP Level 3.

 

Production Equipment

Our company has 16 CNC machining centers, 30 CNC machining lathes, 6 fully automatic CNC machines and automatic sampling equipment. 20 kinds of testing instruments ensure product quality: three-coordinate measuring machine (CMM), X-ray flaw detection system, spectrometer, projector, roundness tester, tensile testing machine, two-dimensional measuring instrument, caliper and special test.

 

 

Advantages of Die Casting

Efficiency: Once your die has been created it can be used time and time again. Allowing you to quickly create hundreds, thousands – even millions – of individual parts to the exact same specification.

 

Repeatability: Yes, mass production is important – but even more crucial? Consistency. And die casting is favoured for its precision and repeatable results, essential for many metal parts.

 

Cost-effective: Speed, accuracy and minimal wastage all help die casting to offer a cost-effective method of mass producing metal parts.

 

Flexibility: Made specifically to your requirements, die casting can be stunningly simple or incredibly intricate and complex. This design flexibility is why the process is used for such a wide range of parts and across so many industries.

 

Finishing options: Whilst it’s not always required, the option of finishing as part of the die casting process, means you can further customise and hone the look of your final product. It can involve anything from adding a decorative touch to enhancing chemical resistance and is the final step in ensuring your finished part more than meets specification.

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Application of Die Casting
 
 
 

Automotive

Many automotive parts, such as gears, pistons, and housings, are made using die-cast parts.

 
 

Aerospace

Die-cast aluminum is especially popular for aerospace components due to its lightweight.

 
 

Electronics

Electronic housings and connectors are commonly made from die-cast aluminum, zinc, or magnesium, providing good shielding from radio frequency interference (rfi) and electromagnetic interference (emi).

 
 

Construction

Window frames, cladding, and other structural components are commonly made from die-cast metals, especially aluminum.

 

 

Types of Die Casting
 

Hot chamber die casting: Hot chamber die casting, also known as gooseneck casting, is one of the most prominent methods used in the die casting industry, particularly suited for metals with low melting points, such as zinc, magnesium, and some alloys of aluminum. Characterized by its speed and efficiency, this process involves a furnace that is integral to the casting machine itself, allowing for rapid cycling and increased production throughput.

 

Cold chamber die casting: Cold chamber die casting is a vital process used for metals with high melting temperatures, such as aluminum, copper, and their alloys, that cannot be processed in a hot chamber die casting machine without damaging it. This method is crucial for creating components that require the superior strength and thermal properties these metals provide, making it essential in the automotive, aerospace, and heavy machinery industries.

 

Metal Materials Used in Die Casting

 

Alloy

Common Subtypes

Primary Constituents

Melting Point (°C)

Key Properties & Applications

Aluminum Alloys

A380, A360, A390, A413, ADC12

Aluminum (Al), Copper (Cu), Silicon (Si), Magnesium (Mg)

577 – 660

Lightweight, corrosion-resistant, high strength-to-weight ratio, good machinability. Versatile, cost-effective. Used in automotive, aerospace, electronics, and consumer goods.

Magnesium Alloys

AZ91D, AM60B, AS41B

Magnesium (Mg), Aluminum (Al), Zinc (Zn)

632 – 650

Extremely lightweight, good castability. Ideal for weight-sensitive applications. Used in aerospace, automotive, and electronics (e.g., handheld devices).

Zinc Alloys

Zamak #2, #3, #5, #7, ZA8, ZA27

Zinc (Zn), Aluminum (Al), Copper (Cu), Magnesium (Mg)

381 – 419

Excellent castability, low melting point, good for intricate designs. Cost-effective. Used in electronics, hardware, toys, and automotive parts.

Copper Alloys

Brass (e.g., C85700), Bronze (e.g., C93200)

Copper (Cu), Zinc (Zn) (Brass); Copper (Cu), Tin (Sn) (Bronze)

900 – 1083

High strength, excellent conductivity and corrosion resistance. Durable. Used in plumbing, electrical connectors, marine components, and bearings.

Pewter (Tin Alloy)

 

Tin (Sn) (90%), Copper (Cu) (2.5%), Lead (Pb) (7.5%), Antimony (Sb)

170 – 230170 – 230

Low melting point, good fluidity, corrosion resistance. Easy to cast. Primarily used in decorative items, figurines, and jewelry.

Lead Alloys

 

Lead (Pb), Tin (Sn)

183 – 327

Soft, low melting point, good corrosion resistance. Used in radiation shielding, previously used in batteries (limited due to toxicity concerns).

Tin-Based Alloys

 

Tin (Sn), Copper (Cu), Antimony (Sb)

232

Low melting point, good corrosion resistance. Easy to cast at low temperatures. Used in electronics, jewelry, and specialized applications.

 

 

Die Casting Finishing Options

 

Deburring: A standard finishing procedure is deburring, which can be thought of as a continuation of the shakeout stage. Deburring involves the removal of imperfections caused by the manufacturing process and is deployed to normalize the appearance and function of the part without adding any specific texture or color.

 

Secondary finishing options: Once imperfections have been removed from the metal die casting parts using a deburring process like sandblasting or manual sanding, it is possible to perform secondary finishing options to transform the surface finish of the castings. These finishing techniques adjust the texture or color of the die casting parts.

 

Precautions for Die Casting

Before starting the die cast process, check the placements to see if it is in the right place and equipment is in good condition. If you find any defects, do not use them until they are fixed or replaced by another die casting equipment.

Do not use any equipment or materials that do not have a valid certificate of safety. Sometimes the quality of the materials or equipment like ladle, cope, and drag might have torn down due to their long usage. In this scenario, if you are not sure about the quality, it is always a better choice not to start the die casting process.

Maintaining a clean and organized workplace is one of the most important steps in maintaining safety for your employees. It’s also essential for keeping your company running smoothly, as well as helping reduce health hazards. Proper ventilation is an extremely important factor to let the toxic fumes pass away safely that are produced from molten metal in die casting process.

 

Packaging and Shipping of Die Casting

 

Packing

Standard export wooden cases

Shipping

Container transport, by sea.

 

FAQ

Q: How long does die casting take?

A: The die casting cycle time depends on the weight of the components. While typically a very quick process, die casting can take from a few seconds for small components to a few minutes for large, heavier components.

Q: Does diecast metal rust?

A: Marine and atmospheric environments with salt will eventually corrode zinc die cast components. While zinc can corrode in harsh atmospheric environments, it is well suited for most die cast components including automotive die cast parts.

Q: Can diecast metal be repaired?

A: A common method of repair is to send the broken piece to a high-quality chrome plating shop for repair. They will copper plate the piece and use the copper as a base to solder the pieces back together, often followed by typical chrome plating.

Q: What is the most suitable material for die casting?

A: A high-strength zinc alloy, Zamak-7 is perfect for die casting. With a lower melting point than other alloys, it is easier to cast and has excellent fluidity. This makes it ideal for complex parts with intricate details. It also has good dimensional stability and resistance to corrosion.

Q: What is most widely used for die casting?

A: The most commonly used metals in the process are zinc, aluminum, and magnesium. While several other options like copper, lead, brass, and tin exist, they are less common and are used only for specific projects.

Q: Can die casting be automated?

A: With the help of automation, manufacturers can reduce some of the costs of die casting. Automation also provides more consistent results, which means fewer mistakes, therefore increased efficiency.

Q: Why is die casting better than sand casting?

A: The surface finish between the processes may be an important factor in determining which process to use. Die casting produces a wonderful, smooth finish. Sand casting produces a rough, coarse finish depending on the sand used, which may require additional finishing treatments.

We're professional die casting manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy cheap die casting for sale here from our factory. Quality products and low price are available.

Metal Machinery Part, Aluminum Gravity Casting, Zamak 5 Die Casting

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