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Bronze Permanent Mould Casting 

 

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 Conex is a leading indian foundry and manufacturer and exporter of Bronze permanent mould castings.

Bronze permanent mould casting is a metalcasting process that utilizes reusable moulds to create intricate and high-quality Bronze parts Bronze Fittings and Bronze Components. Unlike sand casting, which uses a new mould for each casting, permanent moulds can be used hundreds or even thousands of times.

The Process:

  1. Mould Preparation: A permanent mould is typically made from cast iron, steel, or graphite. The mould is precisely machined to create the desired shape of the final bronze piece.
  2. Bronze Melting: Bronze, an alloy of copper and tin, is melted in a furnace at high temperatures. The exact ratio of copper to tin can be varied depending on the desired properties of the final product.
  3. Pouring: The molten bronze is carefully poured into the preheated permanent mould.
  4. Solidification: The bronze cools and solidifies within the mould.
  5. Finishing: Once the bronze has solidified, the mould is opened, and the casting is removed. The casting then undergoes finishing processes like cleaning, grinding, and polishing to achieve the desired surface finish.

Advantages of Bronze Permanent Mould Casting:

  • High Quality: Produces castings with excellent surface detail and dimensional accuracy.
  • Repeatability: Allows for consistent production of identical castings.
  • Durability: Permanent moulds can be used for many castings, making it a cost-effective process for high-volume production.
  • Faster Production: The process is faster than sand casting due to reusable moulds.
  • Suitable for intricate designs: Can be used to create complex shapes with fine details.

Applications of Bronze Permanent Mould Casting:

  • Hotline clamps Liveline clamps
  • Bronze Eletcrical grade connectors
  • Architectural elements (door handles, railings)
  • Gears and Bronze Bushings
  • Decorative Hardware
  • Plumbing Fittings

Aluminium Bronze Alloys used in our casting foundry in india :

  • CDA 954 Bronze Alloy C95400 
  • CDA 956 Aluminium Bronze Alloy C95600
  • CDA 952 Aluminium Bronze Alloy C95200
  • CDA 953 Aluminium Bronze Alloy C95300
  • CDA 955 Aluminum Bronze Alloy C95500
  • AB1 and AB2 , ALBC 1 , ALBC 2 , ALBC 3 , ALBC 4

Bronze popular grades:

  • C83600 (Tin Bronze, SAE 660):
    • Composition: 85 % copper, 5% Tin, 5% lead, 5% Zinc
    • Used for bearings, bushings, and various cast components.
  • C92200 (Leaded Tin Bronze, SAE 67):
    • Composition: 7.5-9% tin, 2.5-4% lead, remainder copper
    • Good for applications requiring lubricity and corrosion resistance.
  • C92300 (Leaded Tin Bronze, SAE 66):
    • Composition: 5.5-7% tin, 5.5-7% lead, remainder copper
    • Similar to C92200, but with higher lead content for improved machinability.
  • C94700 (Leaded Tin Bronze, SAE 64):
    • Composition: 4-5.5% tin, 7-8% lead, remainder copper
    • High lead content for excellent machinability and pressure tightness.
  • C95400 (Aluminum Bronze, SAE 642):
    • Composition: 7.5-9.5% aluminum, remainder copper
    • Good corrosion resistance, strength, and wear properties.
  • C95500 (Aluminum Bronze, SAE 643):
    • Composition: 10-11.5% aluminum, remainder copper
    • Higher strength than C95400, suitable for high-stress applications Hotline clamps, Vise connectors ground rod clamps.
  • C95800 (Leaded Aluminum Bronze, SAE 644):
    • Composition: 9-10.5% aluminum, 3-4% lead, remainder copper
    • Improved machinability due to the lead content.
  • C99700 (Silicon Bronze, SAE 655):
    • Composition: 3.5-4.5% silicon, remainder copper

 
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