Product Description

ABOUT US
HangZhou Suijin machinery Technology Co,.Ltd is a profational manufacturer in HangZhou city, our main process is investment casting/precision casting and machining, for casting process, we have 2 kinds of production line, 1 is precision casting, another is water glass with competitive cost.

Apart from the investment casting workshop and machine workshop, we also provide the CHINAMFG parts to meet the requirement for varial demand from our customer.

CERTIFICATIONS
Our company got the ISO9001 and IATF16949 certification, and aslo we are awarded the new high-tech enterprice by Chinese government, and we have more than 20 patent.

ADVANTAGES
 • More than 10 years experience on casting and machining
 • Advanced inspection equipment to ensure the tolerance
 • Flexible PO QTY to meet customer demand
 • Professional engineers in casting and machining
 • Competitive price and exllent parts quality
 • Nearby HangZhou port, on-time delivery

PROCESS FLOW

OEM&ODM SERVICE
HangZhou suijin machinery technology can provide the ODM&OEM service for customer, and main is ODM, we can manufacturing the customized parts according to 2D&3D, we have professional R&D team can take part in ealier development phase of the project.

AVALIABLE MATERIA & SURFACE TREATMENT

Avaliable Material
Carbon Steel  Alloy Steel High Chromium Cast Iron Low carbon steel
Stainless Steel Duplex Stainless Steel Steel bar Ductile Cast Iron
Surface treatment
Heat Treatment  Zinc Coating Blackening Mirror Polishing
Satin Polishing Electrolytic Polishing Shot Peening DACROMET

PRODUCT APPLICATION
AUTO PARTS

 • Exhaust inlet/outlet cone                                 • Shift sleeve                                 • Fuel rail bracket  
 • Tempreture sensor boss                                  • Mounting Brackets                      • Oxygen sensor boss 
 • Brake balance block                                        • EGR sensor boss                              • Exhaust valve body

ARCHITECTURAL HARDWARE

 • Mounting Base                                • Mounting plate                                                 • Bearing Covers   
 • Coupling                                          • Grount sleeve                                                  • Sprockets
 • Handle                                             • law glass curtain wall accessories                  • Side Plates                                                                                
AGRICULTURAL MACHINERY PARTS

 • Tooth Blocks                                         • Track shoes                                             • Bucket Teeth   
 • Track Links                                           • Clamping                                                 • Mounting Brackets
 • Lifting Eyes                                           • Quick Joint                                              • Trencher Tooth     
                  
MARINE HARDWARE
 • Star handle                                              • Door hinge                                          • Folding Dock Cleat   
 • Mirror Polished Mooring                          • Hollow base boat rope cleat               • Mounting Brackets

VALAVE/PUMP

 • Valve body                                   • Explosion-proof valves                              • Pipe fitting              

OTHERS
The casting part is wildly use in the industries, such as rail&transit parts, bicycle parts, casting impeller, food machine sorting components, solar mounting system parts, container safety parts, Electronic lock body, robot parts and so on, we have more than 20 patents related to this kinds of project in production.    

ADVANCED EQUIPMENTS 

Our company also equiped advance inspection equipment to meet the inspection requirement of the parts, so that we can sure the part can have a good quality.

MAIN EQUIPMENT LIST

Magnetic defect inspection Spectrometer HB hardness inspection Mechanical inspection
Ultrasonic defect inspection Roughness tester HR hardness inspection CMM inspection
Metallographic detector X-ray inspection Dye penetrant inspection 100% Thread inspection

FAQ 

Q1 Are you factory or trading company?
A1 We are factory located in HangZhou city, China
Q2 What kinds of language is avaliable?
A2 English, Chinese, except email cummunication, we are ok with video meeting and calling.
Q3 How should I place an order?
A3 We are receive the PO and production drawing by email.
Q4 Which shipping methed is ok for you?
A4 Normally shipping by sea and train is use for mass production order delivery.
DHL,TNT,FedEx, UPS,EMS air shipment is use for sample delivery.
Q5 How can I contact you?
A5 You can contact us by email, and also we can chat by Skype, Teams, WhatsApp, Facebook.
Q6  What kinds of drawing format can be use?
A6 PRO/E, Auto CAD, CHINAMFG Works, IGS, UG, CAD/CAM/CAE, STEP.
Q7 Which packing material do you use for sea shipping?
A7 For sea shipping, we will packaging with European standard wooden pallet.
The parts will packing with PE bag inside the carton box.
Q8 How do you deal with the RFQ?
A8 Sales receiving the RFQ—Feasiblity study meeting with R&D engineer—Feed back technical issues with Customer—Sales quoted

 

Casting Method: Thermal Gravity Casting
Process: Investment Casting
Molding Technics: Gravity Casting
Samples:
US$ 1/Piece
1 Piece(Min.Order)

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Order Sample

Customization:
Available

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Shipping Cost:

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Payment Method:







 

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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 design considerations are there when working with cast aluminium?

When working with cast aluminium, several design considerations should be taken into account to ensure successful and efficient manufacturing. Here’s a detailed explanation:

1. Wall Thickness: Maintaining uniform wall thickness is crucial in cast aluminium design. Thick sections can lead to slower solidification, increased porosity, and potential shrinkage defects. Conversely, excessively thin sections may result in poor mold filling and insufficient mechanical strength. Design guidelines should be followed to optimize wall thickness and ensure proper solidification during casting.

2. Corner Radii and Fillets: Incorporating generous corner radii and fillets in cast aluminium designs helps minimize stress concentration and prevent the formation of sharp edges. Smooth transitions between wall sections, ribs, and bosses improve the overall strength and integrity of the casting.

3. Draft Angles: Draft angles are necessary to facilitate the removal of the casting from the mold. Adequate draft angles allow for smooth ejection, reducing the risk of damage to the casting and ensuring consistent production. Typically, a minimum draft angle of 1-3 degrees per side is recommended for cast aluminium parts.

4. Rib Design: Ribs are often used to provide additional strength and rigidity to cast aluminium components. Designing ribs with proper thickness, height, and filleting helps prevent distortion and ensures effective heat dissipation during casting and subsequent use.

5. Undercuts and Core Pulls: Complex cast aluminium designs may require the use of cores or slides for creating undercuts or internal features. These features should be designed with care to allow for easy removal of the casting from the mold. Proper consideration of core placement, shape, and release mechanisms is essential to avoid casting defects and ensure smooth production.

6. Parting Line: The parting line is the interface where the two halves of the mold meet. It is important to carefully consider the location of the parting line to minimize the need for additional machining and to ensure good dimensional accuracy. The parting line should be strategically placed to avoid critical features and maintain the overall integrity of the casting.

7. Surface Finish and Texture: Cast aluminium parts often require specific surface finishes and textures for both functional and aesthetic purposes. Design considerations should be given to the desired surface finish, such as smoothness, textures, and the location of parting lines, to achieve the desired appearance and performance of the final product.

8. Material Selection: The selection of the appropriate aluminium alloy for the specific application is crucial. Different aluminium alloys have varying mechanical properties, corrosion resistance, and casting characteristics. Understanding the requirements of the part and selecting the suitable alloy will ensure optimal performance and cost-effectiveness.

9. Tolerances and Machining Allowances: Design tolerances and machining allowances should be carefully defined to accommodate the expected dimensional variations during casting and post-casting processes. It is essential to consider the shrinkage and distortion tendencies of cast aluminium and provide appropriate tolerances to achieve the desired fit and functionality of the final assembly.

10. Testing and Prototyping: Testing and prototyping are essential steps in the design process for cast aluminium parts. Physical prototypes and computer simulations can help identify potential issues, validate the design, and optimize the casting process before full-scale production. Performing thorough testing and evaluation ensures the final design meets the required performance and quality standards.

By considering these design considerations, engineers and designers can optimize the manufacturability, functionality, and performance of cast aluminium components. Collaboration between designers, casting experts, and manufacturers is often valuable to ensure the best outcomes in terms of cost, quality, and efficiency.

cast aluminium

Are there any corrosion-resistant grades of cast aluminium?

Yes, there are corrosion-resistant grades of cast aluminium that are specifically formulated to have enhanced resistance against corrosion. Here’s a detailed explanation:

Cast aluminium alloys are typically composed of aluminium as the primary element and various alloying elements added to enhance specific properties. The choice of alloying elements and their composition can significantly influence the corrosion resistance of cast aluminium. Some commonly used corrosion-resistant grades of cast aluminium include:

  • Aluminium-Silicon Alloys:
  • Aluminium-silicon alloys, such as the popular A356 and A413 grades, are widely used in casting applications due to their excellent corrosion resistance. These alloys contain silicon as the primary alloying element, which forms a protective oxide layer on the surface of the aluminium, enhancing its resistance to corrosion caused by exposure to moisture, salts, and other corrosive elements.

  • Aluminium-Magnesium Alloys:
  • Aluminium-magnesium alloys, such as the 5000 series (e.g., 5052 and 5083), are known for their good corrosion resistance. The addition of magnesium provides a self-healing property to the aluminium, as the magnesium reacts with oxygen to form a protective magnesium oxide layer. This oxide layer helps prevent further corrosion and degradation of the aluminium surface.

  • Aluminium-Zinc Alloys:
  • Aluminium-zinc alloys, such as the 7000 series (e.g., 7075), exhibit high strength and good corrosion resistance. The addition of zinc enhances the corrosion resistance by forming a protective zinc oxide layer on the surface of the aluminium. These alloys are commonly used in applications where both strength and corrosion resistance are critical, such as in aerospace and military industries.

  • Aluminium-Copper Alloys:
  • Aluminium-copper alloys, such as the 2000 series (e.g., 2024), are known for their high strength and moderate corrosion resistance. The addition of copper improves the overall strength and mechanical properties of the aluminium, while also providing some degree of corrosion resistance. However, these alloys may require protective coatings or surface treatments for enhanced corrosion protection in more aggressive environments.

It’s important to note that while these corrosion-resistant grades of cast aluminium offer improved resistance to corrosion, they may still require proper maintenance and care to ensure their long-term performance. Factors such as exposure to harsh environments, temperature variations, and the presence of corrosive agents can still affect the corrosion resistance of cast aluminium, albeit to a lesser extent compared to non-resistant grades.

When selecting a specific grade of cast aluminium for a particular application, it is essential to consider the environmental conditions, intended use, and required level of corrosion resistance. Consulting with material suppliers or experts in the field can provide valuable guidance in choosing the most suitable corrosion-resistant grade of cast aluminium for a given application.

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 supplier ODM OEM Manufacturer Supply High Quality Aluminum Alloy Precision Casting Welding Parts Assembly  China supplier ODM OEM Manufacturer Supply High Quality Aluminum Alloy Precision Casting Welding Parts Assembly
editor by CX 2023-12-08