Directional casting technology is not only suitable for turbine blades, but also for manufacturing turbine impellers. The turbine impeller is an important rotating component in the turbine. It connects and supports the turbine blades and withstands extremely high temperatures and stress. Therefore, high-performance materials and advanced manufacturing technologies are crucial for the production of turbine impellers.
High-temperature alloys, such as nickel-based alloys, are melted and kept in a liquid state.
The oriented grain structure enables the impeller to better withstand thermal stress and cyclic thermal loads, extending its service life.
Grain boundary defects are reduced and the comprehensive mechanical properties of the impeller are improved, including tensile strength, ductility and toughness. Manufacturing process of directional casting turbine impeller.
Manufacture high-precision ceramic molds to ensure that the shape and size of the impeller meet the design requirements.
Directional cast turbine impellers are widely used in the following fields:
High-pressure and low-pressure turbine sections used in high-performance aerospace engines require stable performance under extremely high temperatures and stresses.
Gas turbines for power generation and industrial drives, especially operating in high temperature and high pressure environments.
Such as Inconel 713C, Inconel 718, Inconel 738, etc., have excellent high temperature strength and corrosion resistance.
such as Nimonic 90, Nimonic 105, Nimonic 263, etc., have excellent high temperature strength and anti-oxidation properties.
Such as CMSX-4, CMSX-10, etc., specially designed single crystal high-temperature alloys with excellent high-temperature strength and fatigue resistance, suitable for extreme high-temperature and high-pressure working environments.
High strength and durability
Excellent fatigue performance
Complex shape manufacturing capability
Material diversity