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casting machined parts
Standard: ASME/ANSI B 18.2.1,IFI149,DIN931,DIN933,DIN558, DIN601,DIN960, DIN961, ISO4014,ISO4017
Diameter: 1/4″-2 1/2″,M4-M64
Length: ≤800mm or 30″
Material: Carbon Steel, Alloy Steel, Stainless Steel, Brass
Grade: SAE J429 Gr.2, 5,8; ASTM A307Gr.A, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9;A2-70,A4-70,A4-80
Thread: M,UNC,UNF
Finish: Plain,Black oxide, Zinc Plated(Clear/Blue/Yellow/Black), H.D.G, Nickel, Chrome,PTFE,Dacromet,Geomet,Magni,Zinc Nickel,Zinteck.
Packing: bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand
Application: Structural Steel; Metal Buliding; Oil&Gas;Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating
Equipments: Caliper, Go&No-go gauge, Tensile test machine, Hardness tester, Salt spraying tester, H.D.G thickness tester, 3D detector, Projector, Magnetic flaw detecter,Spectrometer
Supply Ability: 1000 tons per month
MinimumOrder: according to customer demand
Trade Term: FOB/CIF/CFR/CNF/EXW/DDU/DDP
Payment: T/T, L/C, D/A , D/P ,West union,Paypal.etc
Market: Europe/South&north Amrica/East&South east Asia/Middle East/Australia and ect.
Professional: More than 10 years experience in fasteners industry Our Main market is North&South America and proficient in DIN/ASME/ASTM/IFI standard.
Our advantage: One-stop shopping; High quality; Competitive price; Timely delivery; Technical support; Supply Material and Test Reports; Samples for free
Notice: Please lets know the Size, quantity, Material or Grade, surface, If it is special and Non-standard products, please supply the Drawing or Photos or Samples to us

ZheJiang G&T Industry Co., Ltd. is a manufacturer of all standard DIN, BS,JIS and ISO fasteners and other industrial parts with well-equipped testing facilities and strong technical force. 

With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in Mold, Electricity, Construction, Solar energy, Automotive, Machinery & Equipment and other industries.

Q1: Why choose us?

To provide our customers with first-class services in the supply of quality fasteners minimizing costs.

1.1. Vision: We wishes to build successful relations with our partners and be their first choice as an  fasteners supplier.

1.2. Mission: professional customer service, and innovation in technology.

Further more, we do not only offer you fasteners with more reasonable quality and price than your expectations, but also would like to be your friend and to provide you market sales suggestion for your reference, if you have a better idea , please feel free to share with us.

Q2.How is quality ensured?

All our processes strictly adhere to ISO9001:2008 procedures. We have strict quality control from producing to delivery.Our company had strong technology support, We have cultivated a group of managers who are familiar with product quality , good at modern concept of management.

Q3:If you can not find on our website the product you need how to do?

You can send the pictures/photos and drawings of the products you need by email , we will check if we have them. We develop new models every month, Or you can send us samples by DHL/TNT, then we can develop the new model especially for you.

Q4:Can You Strictly Follow The Tolerance on The Drawing And Meet The High Precision?

Yes, we can, we can provide high precision parts and make the parts as your drawing.

Q5: How should I order and make payment?

By T/T, for samples 100% with the order; for production, 30% paid for deposit by T/T before production arrangement, the balance to be paid before shipment.

Q6: What’s your Delivery Time?

Standard parts: 7-15days

Non-standard parts: 15-25days

We will make the delivery as soon as possible with the guarantee quality.

Q7:How to Custom-made (OEM/ODM)

If you have a new product drawing or a sample, please send to us, and we can custom-made the hardware as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.

Q8:Which mode of transport would be better?

In general, the production are heavy, we advice to make delivery by sea, Also we respect your views of other transportation as well.
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Type: Casting
Material 1: Aluminium Alloy
Transport Package: Plastic Bag+ Carton+Wood Pallet
Customization:
Available

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

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

How does cast aluminium perform in high-temperature applications?

Cast aluminium can perform well in high-temperature applications, but its performance is influenced by several factors. Here’s a detailed explanation:

Aluminium has a relatively low melting point compared to other metals, which can lead to concerns about its performance in high-temperature environments. However, cast aluminium can still be suitable for many high-temperature applications due to its unique properties:

  • High Thermal Conductivity:
  • Aluminium has excellent thermal conductivity, meaning it can efficiently transfer heat away from the high-temperature areas. This property allows cast aluminium to dissipate heat quickly, reducing the risk of overheating and maintaining dimensional stability.

  • Lightweight:
  • Cast aluminium is lightweight compared to many other metals. This characteristic is advantageous in high-temperature applications where weight reduction is desirable, as it can help improve energy efficiency and ease of handling.

  • Oxide Layer Formation:
  • Aluminium forms a natural oxide layer when exposed to air, which provides a degree of protection against corrosion and oxidation at high temperatures. This oxide layer acts as a barrier between the metal and the surrounding environment, helping to maintain the integrity of the cast aluminium part.

  • Alloy Selection:
  • The choice of aluminium alloy is critical in high-temperature applications. Different alloy compositions can offer enhanced heat resistance, improved mechanical properties at elevated temperatures, and better overall performance. For example, aluminium-silicon alloys, such as A356 or A413, exhibit good high-temperature strength and stability.

  • Heat Treatment:
  • Applying heat treatment processes to cast aluminium can further enhance its high-temperature performance. Heat treatment can refine the microstructure, improve mechanical properties, and increase the material’s resistance to thermal fatigue and creep.

  • Design Considerations:
  • Proper design considerations, such as incorporating appropriate wall thickness, heat sinks, or insulation, can help manage high temperatures effectively. By optimizing the design, cast aluminium parts can withstand and function reliably in demanding thermal conditions.

Despite its favorable properties, there are limitations to consider when using cast aluminium in high-temperature applications:

  • Aluminium has a lower melting point compared to other metals, so it may not be suitable for extremely high-temperature environments where materials with higher melting points, such as refractory metals or ceramics, are preferred.
  • Excessive exposure to high temperatures can cause gradual softening and deformation of cast aluminium parts, leading to a decrease in mechanical strength.
  • Thermal expansion and contraction of cast aluminium can affect dimensional stability, especially in applications with significant temperature fluctuations. Proper allowances and design considerations are necessary to accommodate these thermal changes.

Overall, cast aluminium can perform well in many high-temperature applications, thanks to its thermal conductivity, lightweight nature, oxide layer formation, and suitable alloy selection. By considering the specific requirements of the application and implementing appropriate design and material considerations, cast aluminium can provide reliable and cost-effective solutions for high-temperature environments.

cast aluminium

How is cast aluminium made, and what are the steps in the casting process?

The process of manufacturing cast aluminium involves several steps. Here’s a detailed explanation:

  1. Pattern Creation:
  2. The casting process begins with the creation of a pattern, which is a replica of the desired final product. The pattern can be made from various materials such as wood, metal, or plastic. It represents the shape and dimensions of the finished cast aluminium product.

  3. Mold Preparation:
  4. A mold is created by placing the pattern into a container and surrounding it with a molding material. The molding material can be sand, plaster, ceramic, or a mixture of these materials. The mold is designed to have a cavity that corresponds to the shape of the pattern.

  5. Mold Assembly:
  6. If the casting process requires multiple parts or complex shapes, the mold may consist of several pieces that are assembled together. This ensures that the final mold can be easily removed from the cast aluminium product.

  7. Melting and Pouring:
  8. The next step is to melt the aluminium. This is typically done in a furnace where aluminium scraps or ingots are heated to their melting point, which is around 660°C (1220°F). Once the aluminium is molten, it is poured into the prepared mold through a gating system, which includes channels and sprues.

  9. Solidification:
  10. As the molten aluminium is poured into the mold, it begins to cool and solidify. The cooling rate and time required for solidification depend on the size and complexity of the cast aluminium product. During this stage, the aluminium undergoes a phase change from liquid to solid, taking the shape of the mold cavity.

  11. Shakeout and Cleaning:
  12. After the cast aluminium has solidified and cooled, the mold is removed, typically by shaking or vibrating the mold. The solidified casting, often referred to as a “green casting,” is then separated from the mold material. The casting is inspected for any defects or imperfections, and excess material, such as risers or gating systems, is removed.

  13. Heat Treatment (Optional):
  14. In some cases, cast aluminium products may undergo heat treatment processes to improve their mechanical properties. Heat treatment can involve processes such as annealing, quenching, or tempering, depending on the desired properties and application requirements.

  15. Finishing Operations:
  16. The final step involves finishing operations to achieve the desired surface finish and dimensional accuracy. This may include machining, grinding, sanding, polishing, or applying coatings or finishes to the cast aluminium product. These processes ensure that the product meets the required specifications and quality standards.

The casting process can vary depending on the specific casting method used, such as sand casting, die casting, or investment casting. Each method has its own variations and requirements, but the overall steps mentioned above provide a general overview of how cast aluminium products are made.

China wholesaler China Customized OEM and ODM Manufacturer M6 M8 Aluminum Die-Casting Machined Parts  China wholesaler China Customized OEM and ODM Manufacturer M6 M8 Aluminum Die-Casting Machined Parts
editor by CX 2024-03-29