Spring processing technique used for turbocharging actuator

Abstract

The invention relates to a spring processing technique used for a turbocharging actuator, aiming at prolonging the service life of a spring of the turbocharging actuator through the spring processing technique. The spring processing technique comprises the steps of: spring coiling, tempering, final inspection, surface treatment, and final package; a coil spring is required to be ground after the operational sequence of tampering, parts to be ground are at two ends of the spring, and the depth of parallelism of the two end surfaces of the spring is guaranteed to be 0.005-0.01mm after grinding;the coil spring is heated after being ground and is compressed by being carried onto a strong compression machine; and black oxidation treatment is performed on the surface of the coil spring after being compressed. The planeness at the two ends of the spring can be guanrateed after grinding, so that the restoring force of the spring is kept identical with that of the axial direction, the restoring force is identical with the moving direction of a valve when the restoring force generated by the spring acts on the valve, so as to guarantee the smooth operation of the valve; and the spring is enabled to reach the related load requirements through thermal strong compression.

Description

technical field [0001] The invention relates to a spring processing technology, in particular to a spring processing technology used in a turbocharged actuator. Background technique [0002] A turbocharger is actually an air compressor that compresses air to increase intake air. It uses the inertial momentum of the exhaust gas discharged from the engine to drive the turbine in the turbine chamber, and the turbine drives the coaxial impeller, which presses the air sent by the air filter pipe to pressurize it into the cylinder. When the engine speed increases, the exhaust gas discharge speed and the turbine speed also increase synchronously, and the impeller compresses more air into the cylinder, and the pressure and density of the air increase to burn more fuel. Increase the fuel volume and adjust the engine speed accordingly. , the output power of the engine can be increased. [0003] The turbocharger actuator is used to prevent the supercharging pressure of the turbocharg...

AI Technical Summary

Problems solved by technology

[0006] Springs are used in the above two types of actuators, but the springs are manufactured by traditional techniques and work in the exhaust gas for a long time, so their lifespan is relatively short

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