Magnetic particle testing (MT) is a useful technique. Generally used to detect the crack surfaces
ferromagnetic in MT method, most of the yoke due to easy task
Detectability in MT depending on intensity. Magnetization of
.Test objects that can be defined by various methods, such as measuring fi
eld tangential magnet with probe tower
researchers Japan has developed taste test standard
monitoring Magnetization of test object [] in Japan, 1 2
.And the United States of America Standard Test, used for many years to determine intensity
magnetization of test objects [3-5] Japan. Standard test A taste type widely used [1-3 is
], which consists of a thin plate with magnetic water
.The property Shim with groove is arti fi cial which occurs by
carving of shim test with liquid type
use the test standard and has a thickness 50 100 mm
the width of the groove around 70 - 90 mm. Standard test for type
shim thickness 50 mm deep groove, 7 15
.And the 30 mm. Likewise for standard type A test
shim with the thickness 100 mm deep groove, and 15 30 60 mm
. Use standard test shim type. A in MT
.
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