Gear and shaft part carburization depth pulse eddy current detection apparatus and gear and shaft part carburization depth pulse eddy current detection method

Abstract

The present invention discloses a gear and shaft part carburization depth pulse eddy current detection apparatus, which comprises a pulse signal generator, a power amplifier, an electric eddy current probe, a signal conditioning amplifier, a data acquisition card and a computer, wherein the pulse signal generator generates a pulse signal, the generated pulse signal passes through the power amplifier and then drives the electric eddy current probe, and the signal output by the electric eddy current probe passes through the signal conditioning amplifier and the data acquisition card, and then is input into the computer. The invention further provides a detection method using the apparatus. With the apparatus and the method of the present invention, the problems of random sampling, destructiveness, high cost, requirement of chemical reagents, tedious and time-consuming process, and the like of the gear and shaft part carburization depth detection in the current actual production are solved, the advantages of no damage on part use performance, rapid detection, low instrument cost, no limitation by the skin effect, and the like are provided, and the 100% online detection on the gear and shaft parts can be achieved.

Description

technical field [0001] The invention relates to a pulsed eddy current detection device and method for carburizing depth of gear and shaft parts, and belongs to the technical fields of heat treatment quality control and nondestructive detection. Background technique [0002] The application of chemical heat treatment in contemporary mechanical processing is increasing, and it has been widely used in various fields such as aerospace, marine machinery and automobile manufacturing. At present, a large number of mechanical parts such as cams, gears, eccentric wheels, and piston pins are subjected to strong friction and impact loads during work, so the surface of the parts is required to have high hardness and wear resistance, while the core has good plasticity and toughness. In order to meet the above performance requirements, chemical heat treatment is required for gear and shaft parts. Chemical heat treatment includes carburizing, nitriding, carbonitriding, boronizing, sulfur...

AI Technical Summary

Problems solved by technology

At present, there is no pulsed eddy current detection device and method to detect the carburization depth of gear and shaft parts in the market.

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