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READ MOREWhat are the surface treatment technologies for the shaft core?
The surface treatment technology of the shaft core mainly includes the following types:
Surface quenching: This is a heat treatment method that can strengthen the surface of the part through rapid heating and quenching without changing the chemical composition and core structure of the steel.
Laser surface strengthening: The laser beam is used to irradiate the surface of the workpiece to heat the material to above the phase transition temperature or melting point in a very short time, and then cool rapidly to achieve surface hardening and strengthening.
Shot peening: high-speed projectiles are sprayed onto the surface of the part, causing plastic deformation of the surface and subsurface layers, thereby improving the mechanical strength, wear resistance, fatigue resistance and corrosion resistance of the part.
Rolling: Use hard rollers or rollers to apply pressure on the surface of a rotating workpiece to plastically deform and harden the surface of the workpiece to obtain a high-precision and smooth surface.
Wire drawing: forcing metal through a mold under the action of external force, changing the shape and size of the metal's cross-sectional area, which can be used to create a surface with special textures.
Polishing: A finishing processing method used to obtain a smooth surface and improve the appearance and texture of the surface, but it cannot improve or maintain the original processing accuracy.
Chemical surface heat treatment: such as carburizing, nitriding, etc., changes the chemical composition and organizational structure of the surface of the workpiece through heating and chemical reactions in specific media, and improves hardness and wear resistance.
Anodizing: Mainly used for aluminum and aluminum alloys, a protective and decorative oxide film is formed on the metal surface through electrolysis.
Thermal spraying: Metal or non-metallic materials are melted and sprayed onto the surface of the workpiece to form a coating that is firmly combined with the substrate to improve wear resistance, corrosion resistance, etc.
Vacuum plating: Under vacuum conditions, a thin film is deposited on a metal surface by distillation or sputtering to form a surface with specific functions.
Salt bath composite treatment (QPQ): An emerging surface heat treatment technology, through salt bath carbonitriding and oxidation treatment, other elements are infiltrated into the metal surface to improve wear resistance, corrosion resistance and aesthetics.
These surface treatment technologies can be used individually or in combination to achieve desired performance requirements. The choice of technology depends on factors such as the specific application of the shaft, performance requirements and cost-effectiveness.
In what areas are shaft cores usually used?
As a key component in mechanical equipment, shaft cores are widely used in many fields and different application scenarios, mainly including:
Automobile industry: Shaft cores are very critical in the transmission system of automobiles. They are used in transmissions, differentials, engines and wheel drive shafts to ensure the effective transmission of power and the driving of the vehicle.
Mechanical transmission: In various mechanical equipment, the shaft core is used to support transmission components such as gears, pulleys, sprockets, etc., to transmit torque and ensure the stability and accuracy of mechanical movement.
Motors and engines: Shafts are the core components of motors and internal combustion engines. They connect the rotor of the motor or the piston of the engine to transmit power to other parts of the mechanical system.
Industrial automation: In automation equipment, the shaft core is used to drive robotic arms, rollers and other automation components to achieve precise motion control.
Aerospace: Among the precision components of aircraft engines, navigation systems, and spacecraft, the role of the shaft core is to ensure the coordinated operation and high-precision control of each component.
Precision instruments: Precision instruments such as high-precision machine tools and measuring tools rely on shaft cores to maintain the accuracy of mechanical movement, which is crucial to ensuring processing accuracy and measurement accuracy.
These application fields have extremely high requirements on the reliability, durability and accuracy of the shaft core. The performance of the shaft core directly affects the operating efficiency and safety of the entire mechanical equipment.