Product Description

Brief introduction about high pressure die casting

Die casting is the process where molten metal is injected into a mold under high pressure in the range of 10 – 210 Mpa. This will result in a highly uniform casting with very good surface finish and exceptional dimensional accuracy. Usually this can either eliminate or greatly reduce the machining required to finish the part.We can offer both the cold chamber process and the hot chamber process. In the cold chamber process the metal is ladled into the injection chamber for each shot. There is less exposure of the molten metal to the chamber walls and plunger. This is very useful for aluminum and copper alloys that would easily alloy with iron at elevated temperatures. The hot chamber process has the injection chamber which is connected to the die cavity permanently immersed in the molten metal. The hot chamber process is used for metals of low melting point and high fluidity such as tin and zinc.

The materials that Donrex offers are alloys of aluminum, copper, zinc and magnesium. Zinc castings can be made with thinner wall thickness than aluminum due to high melt fluidity.

We can produce parts from very small to about 50 kg (110lbs ) for aluminum, 10 kg ( 22 lbs ) for magnesium, 80 kg ( 176 lbs ) for zinc and 10 kg ( 22 lbs ) for copper. 

Minimum wall thickness and draft angles for die castings are as follows

Material Min. Thickness Min. draft angle
Aluminum 0.9 mm ( .035 in ) 0.5 degrees
Zinc alloys 0.6 mm ( .571 in ) 0.25 degrees
Copper 1.25 mm ( .050 in ) 0.7 degrees

Die casting process:

Production equipments:

Products show:

Packaging & shipping:

Customers: 

Our service:
 

1. 20 years of manufacturing success in China and exporting experience worldwide
2.Global specialized producer of machined castings.
3. We combine our own resources with some other well-developed factories to fulfill a wide range of contract manufacturing capabilities. Working with one source, saves time and money.
4. Satisfied supplier of 7 big companies from North America and Europe.
5. Low cost mold materials and focus on efficiency offer a cost effective solution to your metal component purchasing requirements.
6. Normal lead times range from 1 to 6 weeks for fully-machined components.
7. Strong capacity to help customers develop new projects.
8. Our sales department is 24 hours available in order to help our customers solve problems quickly.

FAQ:

1. Can we get the samples?
Yes, we can supply you the samples for checking our quality within 10-30 days.
2. Can we place a trial order first time?
Yes, we are glad to supply you small trial order, and hope your quantity will be big in future.
3. Can you help us to do the customs clearance of import?
Yes, we can help you to do the customs clearance.
4. What is your lead-time?
With our design, fabrication and manufacturing skills and experience, we can efficiently exceed your expectations and meet the time frame required. However, we guarantee that quality and service are never compromised.

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Die Casting Machine Type: Hot Chamber Die Casting Machine
Die Casting Method: Precision Die Casting
Application: Machinery Parts
Machining: CNC Machining
Material: Aluminum Alloy
Surface Preparation: Spray Coating
Customization:
Available

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cast aluminium

What is the impact strength of cast aluminium?

The impact strength of cast aluminium can vary depending on several factors. Here’s a detailed explanation:

The impact strength refers to a material’s ability to withstand sudden loads or shocks without fracturing or breaking. It is an essential property to consider, particularly in applications where the cast aluminium part may be subjected to impact or sudden loads.

The impact strength of cast aluminium is influenced by various factors, including the alloy composition, casting method, heat treatment, and microstructure. Here are some key points to consider:

  • Alloy Composition:
  • The specific alloy used in the casting process significantly affects the impact strength of cast aluminium. Different alloying elements and their concentrations can influence the material’s mechanical properties, including impact resistance. For example, some aluminium-silicon alloys, such as A356 or A413, are known for their good impact strength.

  • Casting Method and Process:
  • The casting method employed can affect the impact strength of cast aluminium. Certain casting processes, such as die casting or squeeze casting, can result in improved material density and reduced porosity, leading to higher impact strength compared to other methods like sand casting.

  • Heat Treatment:
  • Heat treatment processes, such as solution heat treatment and aging, can improve the impact strength of cast aluminium. Heat treatment helps refine the microstructure, enhance the material’s mechanical properties, and increase its resistance to impact loading.

  • Microstructure:
  • The microstructure of cast aluminium, including the size and distribution of grains and any present phases or inclusions, can influence its impact strength. A fine and uniform microstructure generally contributes to improved impact resistance.

  • Design Considerations:
  • The design of the cast aluminium part can also impact its impact strength. Factors such as wall thickness, geometry, and the presence of stress concentration points can affect the part’s ability to withstand impact loads. Proper design considerations, such as fillets, ribs, or reinforcement, can help enhance impact resistance.

It’s important to note that the impact strength of cast aluminium can vary among different alloy grades and even within the same alloy due to variations in casting and processing conditions. Therefore, it is advisable to consult specific material data sheets or conduct mechanical testing to determine the impact strength of a particular cast aluminium grade for a given application.

Additionally, the impact strength of cast aluminium is typically evaluated using standardized tests, such as the Charpy or Izod impact test. These tests involve subjecting standardized specimens to a sudden impact and measuring the energy absorbed during fracture. The results provide an indication of the material’s resistance to impact loading.

In summary, the impact strength of cast aluminium is influenced by factors such as alloy composition, casting method, heat treatment, microstructure, and design considerations. By selecting suitable alloys, applying appropriate casting techniques, considering heat treatment processes, optimizing the part design, and conducting mechanical testing, it is possible to achieve cast aluminium parts with the desired impact strength for specific applications.

cast aluminium

What types of finishes can be applied to cast aluminium?

Cast aluminium can be finished with various types of coatings and finishes to enhance its appearance, protect it from corrosion, and provide additional durability. Here are some common types of finishes that can be applied to cast aluminium:

  • Paint:
  • Painting is a popular finishing option for cast aluminium. It allows for a wide range of color choices and can be used to achieve different textures and finishes, such as matte, glossy, or metallic. Paint provides both aesthetic appeal and a protective layer to shield the aluminium from environmental factors.

  • Powder Coating:
  • Powder coating is a dry finishing process where a fine powder is electrostatically applied to the cast aluminium surface. The powder adheres to the metal and is then cured under heat, forming a durable, uniform, and smooth coating. Powder coating offers excellent corrosion resistance, impact resistance, and color options, making it a popular choice for outdoor furniture, automotive parts, and architectural applications.

  • Anodizing:
  • Anodizing is an electrochemical process that creates a controlled oxide layer on the surface of aluminium. It enhances the natural corrosion resistance of aluminium and provides a more durable finish. Anodized finishes can range from clear or natural to various colors, depending on the type of anodizing process used. Anodized cast aluminium is commonly used in architectural applications, electronics, and consumer goods.

  • Polishing:
  • Polishing is a mechanical finishing process that creates a smooth, reflective surface on cast aluminium. It involves using abrasives and polishing compounds to remove imperfections and scratches, resulting in a shiny and lustrous finish. Polished aluminium can be left untreated for a bright, metallic appearance, or it can be further coated or protected with clear lacquer or wax.

  • Brushed or Satin Finish:
  • A brushed or satin finish is achieved by brushing the surface of cast aluminium with abrasive materials or using mechanical techniques. This creates a textured, matte finish with visible brush marks. Brushed or satin finishes are commonly used in architectural applications, decorative elements, and furniture.

  • Antique or Patina Finish:
  • An antique or patina finish is designed to give cast aluminium a weathered or aged appearance. This finish is achieved through chemical treatments or special coatings that create an oxidized or tarnished effect on the surface. Antique finishes are often used in decorative pieces, art, and furniture to add character and vintage appeal.

The choice of finish for cast aluminium depends on the desired aesthetic, functional requirements, and the intended application of the product. Different finishes offer varying levels of protection, durability, and visual effects, allowing for customization and versatility in the use of cast aluminium.

cast aluminium

What are the advantages of using cast aluminium in manufacturing?

Using cast aluminium in manufacturing offers several advantages. Here’s a detailed explanation:

  • Lightweight:
  • Cast aluminium is lightweight compared to other metals, such as steel or iron. This property makes it an ideal choice for applications where weight reduction is crucial, such as in the automotive and aerospace industries. The use of cast aluminium components can contribute to improved fuel efficiency, increased payload capacity, and enhanced overall performance.

  • Strength-to-Weight Ratio:
  • Although cast aluminium is lightweight, it exhibits excellent strength-to-weight ratio. It provides sufficient structural strength and rigidity for many applications while keeping weight to a minimum. This property makes it suitable for applications requiring strength and durability, such as in the construction of machinery, vehicles, and structural components.

  • Corrosion Resistance:
  • Aluminium naturally forms a protective oxide layer on its surface, which provides inherent corrosion resistance. This oxide layer helps prevent rusting and corrosion, making cast aluminium components suitable for outdoor or corrosive environments. Additionally, aluminium can be further enhanced with coatings or finishes to improve its corrosion resistance and prolong its lifespan.

  • Malleability and Versatility:
  • Cast aluminium is highly malleable, allowing it to be easily shaped and formed into complex designs and intricate details. This versatility opens up a wide range of possibilities for manufacturing intricate components, decorative elements, and custom designs. Cast aluminium can be used to create aesthetically pleasing and functional products across various industries.

  • Excellent Thermal Conductivity:
  • Aluminium has excellent thermal conductivity, meaning it efficiently transfers heat. This property makes cast aluminium components suitable for applications where heat dissipation is critical, such as in heat sinks, cooling systems, or electronic enclosures. The high thermal conductivity of aluminium helps dissipate heat and maintain optimal operating temperatures.

  • Recyclability:
  • Aluminium is highly recyclable without losing its inherent properties. Recycling cast aluminium requires significantly less energy compared to primary aluminium production. The recyclability of cast aluminium makes it a sustainable choice, reducing the demand for primary aluminium and minimizing environmental impact.

  • Cost-Effectiveness:
  • Cast aluminium manufacturing processes are often cost-effective compared to other metal manufacturing methods. The relatively low melting point of aluminium reduces energy consumption during casting, and the lightweight nature of aluminium reduces transportation costs. Additionally, the recyclability of aluminium contributes to cost savings in the long run.

These advantages make cast aluminium a popular choice in various industries, including automotive, aerospace, construction, electronics, and consumer goods. However, it is important to consider specific application requirements, such as load-bearing capacity, temperature resistance, and surface finish, to determine the suitability of cast aluminium for a particular manufacturing project.

China Professional Aluminum Die Casting Detector Shell OEM Service  China Professional Aluminum Die Casting Detector Shell OEM Service
editor by CX 2024-04-16