Production process and product advantages of C96900 copper bushing:

1. Production process

Alloy composition and casting process

C96900 belongs to copper-nickel-tin alloy (Cu-Ni-Sn), which is made by centrifugal casting with air pressure by using spinodal decomposition heat treatment strengthening process. Its forging process is similar to that of copper-beryllium alloy, but the strength exceeds that of traditional beryllium copper through improved heat treatment. In addition, sand casting, metal mold casting, centrifugal casting, etc. are all common casting methods for copper bushings.

Key processing steps

Heat treatment: Spinodal decomposition is the core process, and the hardness and strength of the material are improved by solution treatment + aging strengthening.

Precision machining: After casting, machining (such as turning, drilling), surface treatment (such as degreasing, phosphating) and finishing are required to ensure dimensional accuracy and surface quality.

Quality control: including cleaning of castings, secondary processing after cooling, anti-deformation packaging of finished products, etc.

2. Product Advantages

Excellent mechanical properties

High strength and high hardness: After the spinodal decomposition treatment, the tensile strength is significantly improved, and the hardness is 1 times higher than that of traditional bronze, which can withstand heavy load conditions.

Excellent wear resistance: The internal structure is dense, and the service life is doubled under low speed and high load conditions.

Corrosion resistance and environmental adaptability

It has strong resistance to seawater corrosion and erosion, and is suitable for shipbuilding and marine engineering applications.

It can still maintain stable performance under high temperature environment, and its thermal conductivity is better than ordinary steel.

Functional characteristics

Non-magnetic: It meets the needs of aerospace, precision instruments, etc. for non-magnetic materials.

Conductivity: It retains the conductivity of copper-based alloys and is suitable for special industrial scenarios.

Environmental protection and safety

It does not contain beryllium (compared with beryllium copper alloy), avoiding the toxicity of beryllium, and its performance is close to or even better than beryllium copper.

3. Application fields

C96900 copper bushings are widely used in aerospace (such as landing gear bearings), marine equipment, heavy-duty machinery (mining, metallurgical equipment) and precision instruments, especially suitable for complex working conditions with high corrosion, high load and non-magnetic requirements.