Product Description

Product Description

Material

aluminum

Processes

aluminum die casting

Weight

1kg-10kg

Diameter

100mm-200mm

Surface treatment

powder coated, painting

Detailed Photos

 

 

 

Packaging & Shipping

Company Profile

 ZheJiang Excellent Machinery Tech. Co., Ltd. provides cast iron and steel components in North China.
Since 1997, we are in the business of these products and exported the products to USA and EU.
We have following methods to produce:
1. Automatic line, model box at 900X900
2.Shell moulding
3.Lost wax casting
4.Machining from Tube, bar
5.Steel sheet cutting and machining
We have special advantage in the following products:
1. Components for agricultural equipment, construction and mining equipment, typical products include: wheel hubs, wheels, counter weight , 3 points for lifting system, etc.
2. Pump body, motor housing and valve body castings.
3. Concrete hose fittings
4. Pulleys, pulleys for glazing line.
Weight of castings we could supply: up to 5MT.
Dimension of castings: up to 2.5 Meter.
Material of castings: gray iron, ductile iron, carbon and alloy steel, investment stainless steel castings, etc .Our machine shop are equipped with both engine lathe for rough machining and CNC, MCs for finishing to meet the tolerance requirement and at the same time to maintain the lowest cost.
Physical Test: Hardness, Tensile strength, yield strength, elongation.
Chemical Test: C,Si,Mn,S,P and so on.
Surface treatment: Powder coating, Galvanization, Mirror polishing etc
We have experienced technicians, advanced equipment, modern and efficient management methods, reliable quality, and a policy of regarding the customer as the heart of service will ensure the continuous and steady development of our company. You can count on our expertise, including a staff foundry engineer, to assist in providing the best solution to lower the cost of your final products.
We will, as always, work together with our customers to seek opportunities for developing new market and products, to satisfy our customer and the society.
 

WHY CHOOSE US

With more than 20 years experience in casting and machining exportation, HEM Tech has kept on good terms with customers in business. The following will make you trust us:
1. Reliable quality
Quality is as important as our life. To make our products reliable, we have employed professional engineers and introduced a series of quality control system.
2. Competitive price
We can offer the best price as well as reliable products for you.
3. Reasonable delivery
Thorough quality control system makes delivery in time.
4. Friendly communication
We treat every customer as our best friend, and we handle each question seriously.
5. Professional technical support
Our engineers are ready for your questions.
 

WORK FLOW

The production work flow chart is as following:

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Surface Treatment: Powder Coated, Painting
Weight: 1kg-10kg
Casting Method: Die Casting
Maching Process: CNC
Material: Al
Packages: Polywood Case
Customization:
Available

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cast aluminium

Can cast aluminium be welded, and if so, what techniques are used?

Yes, cast aluminium can be welded, but it requires specific techniques and considerations due to the unique characteristics of the material. Here’s a detailed explanation:

Cast aluminium is a commonly used material in various industries due to its lightweight, high strength-to-weight ratio, and good corrosion resistance. Welding cast aluminium can be challenging because it has different properties compared to wrought aluminium, primarily due to its microstructure and the presence of impurities and inclusions.

When welding cast aluminium, several important factors should be considered:

  • Preparation and Cleaning:
  • Prior to welding, thorough cleaning of the cast aluminium surfaces is crucial. Any contaminants, such as oils, dirt, or oxide layers, should be removed to ensure proper fusion and minimize the risk of defects in the weld.

  • Preheating:
  • Preheating the cast aluminium part can help reduce the thermal stresses and minimize the potential for cracking during welding. The preheating temperature and duration depend on factors such as the alloy type, part thickness, and welding method.

  • Welding Techniques:
  • Various welding techniques can be used for cast aluminium, including:

    • Tungsten Inert Gas (TIG) Welding: TIG welding is commonly used for welding cast aluminium. It involves the use of a non-consumable tungsten electrode to create an electric arc, and a shielding gas (typically argon) protects the weld area from atmospheric contamination. TIG welding allows precise control of the heat input and produces high-quality welds.
    • Metal Inert Gas (MIG) Welding: MIG welding, also known as Gas Metal Arc Welding (GMAW), can be used for cast aluminium. It utilizes a consumable electrode wire and an inert gas shield to protect the weld pool. MIG welding is faster than TIG welding but may require more expertise to achieve good results with cast aluminium.
    • Fusion Welding: In some cases, fusion welding techniques like oxyfuel gas welding or plasma arc welding may be suitable for specific cast aluminium applications. These processes involve the localized melting of the base metal to create the weld joint.
  • Filler Material:
  • The choice of filler material for welding cast aluminium is crucial. Generally, an aluminium-silicon alloy filler wire, such as 4043 or 5356, is used. These alloys have a similar composition to most cast aluminium grades and provide good fusion and mechanical properties.

  • Post-Weld Heat Treatment:
  • After welding, post-weld heat treatment (PWHT) may be necessary to relieve residual stresses and improve the mechanical properties of the weld. The specific PWHT requirements depend on factors such as the alloy composition, part thickness, and application.

  • Weld Quality and Testing:
  • Proper inspection and testing of the welds are essential to ensure their quality and integrity. Non-destructive testing methods, such as visual inspection, dye penetrant testing, or radiographic examination, can be employed to detect any weld defects or discontinuities.

It is important to note that welding cast aluminium can be more challenging compared to welding wrought aluminium due to the potential for casting defects, such as porosity or inclusions, which can affect the weld integrity. Therefore, it is advisable to work with experienced welders who have expertise in welding cast aluminium and understand the specific challenges associated with the material.

In summary, cast aluminium can be welded using techniques such as TIG welding, MIG welding, or fusion welding, provided proper preparation, cleaning, preheating, filler material selection, and post-weld heat treatment are considered. By following appropriate welding procedures and conducting thorough quality inspections, reliable and structurally sound welds can be achieved in cast aluminium parts.

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 properties make cast aluminium suitable for outdoor furniture?

Cast aluminium possesses several properties that make it highly suitable for outdoor furniture. Here’s a detailed explanation:

  • Corrosion Resistance:
  • One of the key properties of cast aluminium is its excellent corrosion resistance. Aluminium naturally forms a protective oxide layer on its surface, which acts as a barrier against environmental factors such as moisture, oxygen, and UV radiation. This inherent corrosion resistance allows cast aluminium outdoor furniture to withstand exposure to rain, humidity, and other outdoor elements without rusting or deteriorating.

  • Lightweight:
  • Cast aluminium is significantly lighter than other metals commonly used in furniture, such as iron or steel. This lightweight property makes cast aluminium furniture easy to move and rearrange in outdoor spaces. It is particularly advantageous for larger furniture pieces, such as dining sets or lounge chairs, as it allows for effortless transportation and storage.

  • Durability:
  • Cast aluminium is known for its durability and long lifespan. It is a robust material that can withstand the rigors of outdoor use, including exposure to sunlight, temperature variations, and frequent handling. Unlike wood, cast aluminium is not prone to cracking, warping, or rotting, making it an ideal choice for outdoor furniture that needs to withstand different weather conditions.

  • Low Maintenance:
  • Outdoor furniture made from cast aluminium requires minimal maintenance. The corrosion-resistant nature of aluminium eliminates the need for regular painting or protective coatings. Cast aluminium furniture can be easily cleaned with mild soap and water, and occasional application of a protective wax or polish can help maintain its appearance over time.

  • Aesthetic Appeal:
  • Cast aluminium furniture offers a wide range of design options and finishes. It can be intricately molded and shaped to create various styles and patterns, allowing for visually appealing outdoor furniture designs. Cast aluminium can also be finished with different coatings or powder coatings, providing options for color customization and enhancing its aesthetic appeal.

  • Comfort:
  • Along with its functional properties, cast aluminium furniture can be designed with comfort in mind. Cushions or padded seating can be added to enhance the comfort level, making it suitable for extended outdoor lounging or dining experiences.

The combination of corrosion resistance, lightweight construction, durability, low maintenance, aesthetic versatility, and comfort makes cast aluminium an excellent choice for outdoor furniture. It can withstand outdoor conditions while providing a visually appealing and comfortable seating or dining experience.

China wholesaler High Pressure Aluminium Die Casting Motor Housing  China wholesaler High Pressure Aluminium Die Casting Motor Housing
editor by CX 2024-03-30