公开(公告)号：US20170108470A1

公开(公告)日：2017-04-20

申请号：US15128573

申请日：2014-10-08

Applicant: SINTOKOGIO, LTD.

Inventor： Yoshiyasu MAKINO ,  Hideaki KAGA

IPC: G01N27/90

CPC classification number: G01N27/9046 ,  B24C1/10 ,  G01N27/9033

Abstract: The present invention provides a surface property inspection method and apparatus for inspecting the surface properties of a test object subjected to two stages of shot peening. The present invention is an apparatus 1 includes an AC power supply, an AC bridge circuit, and an evaluation apparatus. The AC bridge circuit is constituted by a variable resistor, a reference detector and inspection detector. The inspection detector includes a coil wound so as to oppose the surface property inspection area of the test object M; an eddy current is excited in the test object M by supplying AC power to the coil. A pass/fail judgment of the first shot peening can be made by inspecting the surface properties of a test object subjected to a second shot peening only after the second shot peening is completed.

公开(公告)号：US20150241391A1

公开(公告)日：2015-08-27

申请号：US14707600

申请日：2015-05-08

Applicant: SINTOKOGIO, LTD.

Inventor： Yoshiyasu MAKINO ,  Hideaki KAGA

IPC: G01N27/90

CPC classification number: G01N27/9046 ,  C21D7/06 ,  C21D11/00 ,  G01N27/9006

Abstract: To provide a surface property inspection apparatus, surface property inspection system, and surface property inspection method capable of inspecting the surface processing state of processed material subjected to surface processing such as shot-peening, heat treatment, or nitriding with high accuracy and low vulnerability to temperature changes in the inspection environment. Surface property inspection apparatus is furnished with a AC power supply, a AC bridge circuit, and an evaluation device; AC bridge circuit comprises variable resistor with which distribution ratio γ is variable, reference detector, and inspection detector. Inspection detector is furnished with a coil wound so as to oppose the surface property inspection region of object under inspection M, and by supplying AC power from AC power supply to coil, an eddy current is excited in object under inspection M. Thus the magnetic properties of object under inspection M can be detected, and inspection of surface properties based on the output signal from AC power supply is possible.

Abstract translation: 提供能够以高精度和低脆弱性检查经受表面处理的加工材料（例如喷丸硬化，热处理或氮化）的表面处理状态的表面性质检查装置，表面性质检查系统和表面性质检查方法 检查环境温度变化。 表面性质检查装置配有交流电源，交流电桥电路和评估装置; 交流电桥电路包括分配比γ可变的可变电阻，参考检测器和检查检测器。 检查检测器具有卷绕的线圈，以便与被检查物体M的表面特性检查区域相对，并且通过从线圈向交流电源供给AC电力，在检查对象物体内激发涡流。因此，磁特性 可以检测被检查物体M，并且可以基于来自交流电源的输出信号检查表面特性。