Stellite Turbine Wheel

Stellite turbine impellers have outstanding performance characteristics. They are usually made of Stellite alloy, which has excellent high-temperature strength, wear resistance and corrosion resistance.

Structurally, Stellite turbine impellers are carefully designed to optimize fluid dynamics and improve working efficiency. Its blade shape and distribution can effectively convert the energy of the fluid into mechanical energy.

Due to the characteristics of Stellite alloy, Stellite turbine impellers can maintain stable performance in high temperature, high pressure and harsh working environments, reduce wear and corrosion, and thus extend service life.

Isothermal Forging Turbine Wheel

Advantage

Excellent wear resistance

Stellite alloy has extremely high hardness and wear resistance due to the cobalt and other hard alloy elements (such as chromium, molybdenum, tungsten, etc.) it contains. This allows the manufactured turbine impeller to operate for a long time without damage in high-speed rotation and high-friction environments, greatly extending the service life of the equipment.

High temperature resistance

Stellite alloy still maintains stable mechanical properties and structural integrity at high temperatures. This allows Stellite turbine impellers to withstand working conditions in high-temperature environments, such as applications in aircraft engines and gas turbines, and provide reliable power output.

Excellent corrosion resistance

The corrosion-resistant elements such as chromium make Stellite alloy have excellent corrosion resistance and can resist the erosion of chemical media. This makes Stellite turbine impellers suitable for a variety of corrosive environments, such as applications in the chemical industry and marine engineering.

High strength and rigidity

Stellite alloy has excellent strength and rigidity, and can maintain stable performance under high-speed rotation and high pressure. This property enables turbine impellers to withstand the challenges of fluid dynamics and mechanical loads without deformation or damage.

The general processes for manufacturing Stellite alloy turbine impellers include

Investment casting: suitable for manufacturing impellers with complex shapes and internal channels. The precision and surface quality of the impeller are ensured through precise casting processes.

Machining: including processes such as milling, turning and grinding to ensure that the impeller meets the designed geometric requirements and surface roughness.

Heat treatment: Through heat treatment processes such as solid solution treatment and precipitation hardening, the grain structure of the alloy is adjusted and the hardness is increased to enhance the mechanical properties of the impeller.

Stellite alloy turbine impeller application areas:

Aerospace: used for impeller components in jet engines and turbochargers, which can provide reliable power output under high speed and high temperature environment.

Energy industry: especially gas turbines and turbochargers, used to provide efficient energy conversion and power output.

Chemical industry: used to manufacture impellers for pumps, valves and other liquid handling equipment to resist corrosive media and provide long-lasting wear resistance.

Marine engineering: in seawater environment, used for turbine impellers of ships and offshore platforms to ensure long-term operation and resistance to seawater corrosion. 

The wear resistance of Stellite turbine impellers can be tested by the following methods:

Wear test

such as pin-on-disc wear test, reciprocating wear test, etc., to simulate the friction between the impeller and other components under actual working conditions.

Scratch test

evaluate the ability of the impeller surface to resist scratches.

Hardness test

hardness is related to wear resistance, and hardness test can indirectly reflect wear resistance.

Microstructure analysis

observe the microstructure of the impeller material, such as grain size, phase distribution, etc., to determine its impact on wear resistance.

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