Pulse eddy current testing device and method for carburizing depth of gear and shaft parts

A technology of carburizing depth and pulsed eddy current, which is applied in the field of pulsed eddy current detection devices, can solve the problems of detecting the carburizing depth of gears and shaft parts, etc., and achieve the effect of fast detection speed and low instrument cost

Inactive Publication Date: 2018-10-26
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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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.

Method used

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  • Pulse eddy current testing device and method for carburizing depth of gear and shaft parts
  • Pulse eddy current testing device and method for carburizing depth of gear and shaft parts
  • Pulse eddy current testing device and method for carburizing depth of gear and shaft parts

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with accompanying drawing.

[0041] Such as figure 1As shown, a pulsed eddy current detection device for carburizing depth of gear and shaft parts,

[0042] It includes pulse signal generator, power amplifier, eddy current probe, signal conditioning amplifier, data acquisition card and computer;

[0043] The output end of the pulse signal generator is connected to the input end of the power amplifier, the output end of the power amplifier is connected to the input end of the eddy current probe, the output end of the eddy current probe is connected to the input end of the signal conditioning amplifier, and the output end of the signal conditioning amplifier is connected to the data acquisition card The input end is connected, and the output end of the data acquisition card is connected to the computer;

[0044] The pulse signal generator generates a pulse signal, which drives the eddy current probe af...

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PUM

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Abstract

The invention discloses a pulsed eddy current detection device for carburizing depth of gears and shaft parts, comprising a pulse signal generator, a power amplifier, an eddy current probe, a signal conditioning amplifier, a data acquisition card and a computer; the pulse signal generator generates pulse signals , drive the eddy current probe through the power amplifier, and the output signal of the eddy current probe is input into the computer after passing through the signal conditioning amplifier and the data acquisition card; it also includes the detection method using the device; the present invention solves the problem of gear and shaft parts in current actual production The problems of random sampling, destructiveness, high cost, need for chemical reagents, cumbersome and time-consuming process exist in the detection of carburizing depth. Realize online 100% detection of gear and shaft parts.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/90G01N27/904
Inventor 范孟豹杨盼盼曹丙花王琪李威王禹桥杨雪锋
Owner CHINA UNIV OF MINING & TECH
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