MAGNETIC PARTICLE INSPECTION METHOD AND MAGNETIC PARTICLE INSPECTION DEVICE

Japanese Patent JP3614419

B2

PROBLEM TO BE SOLVED: To provide a magnetic particle inspection method and a magnetic particle inspection device capable of detecting a flaw at a low cost in a short time without requiring skill and troublesome work, and improving the detection performance of a fine defect.
SOLUTION: At least a magnetic sheet 19 in contact with the face side of a flaw detection material is formed of a transparent material, and by partitioning the space between the sheet on the face side in contact with the flaw detection material and a sheet on the opposite face side, into many small chambers 22 and dispersing magnetic particles 24 coated with a luminescent paint in dispersant 23 in the small chambers 22 is brought into contact with the test surface of the flaw detection material or pushed thereon to be adhered thereto. Then, the magnetic sheet 19 is separated from the flaw detection material, and the magnetic sheet 19 is irradiated with visible light or an ultraviolet ray 25, to allow to emit light from a magnetic particle pattern drawn on the magnetic sheet 19.

JP6224340	Magnetizer
JPH10318986	FLAW DETECTOR FOR STEEL PLATE SPRING AND FLAW DETECTION METHOD

Toshio Hasegawa
Hideyuki Hirasawa
Mitsuhiro Kamioka
Sakai Kuniyoshi
Matsui

JP2002340701A

January 26, 2005

October 24, 2000

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Kawasaki Heavy Industries, Ltd.

G01N27/84; G01N27/85; (IPC1-7): G01N27/85; G01N27/84

JP6076877U
JP49078511U
JP3040339B2
JP56005934B1
JP5264511A
JP6098373A
JP56040752A
JP57026742A
JP2001021539A
JP2002090343A
JP2002090344A
JP2002116188A

Yoshihiro Tsunoda
Yasu Furukawa
Toshio Nishitani
Keiji width

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