The turbine housing is one of the core components of a turbocharger, primarily designed to enclose the turbine rotor and direct engine exhaust gases to strike the turbine blades. It converts exhaust energy into mechanical energy to drive the compressor, thereby enhancing the engine's air intake efficiency and power output. Widely used in the turbocharging systems of diesel, gasoline, and natural gas engines, the turbine housing serves as the 'energy conversion hub' of the system. While it does not generate power itself, its design precision and material performance directly impact the turbocharger's efficiency, response time, and service life, making it an indispensable key component of modern high-efficiency internal combustion engines.