TASETO JIKI CHECK Magnetic Particle Inspection

Product Made in Japan
Manufacturer: TASETO
Model: JIKI CHECK

Applications

Ferromagnetic metals (mild steels, high
tensile steels, steel castings)

● Features

1. Excellent in detecting surface flaws on ferromagnetic steels (unusable for non-magnetic materials).
2. Can also detect flaws that are not open to the surface.
3. Low testing cost
4. LED Blacklight is cordless

● Principle

Applying a high current to a magnetized object, or exciting an object placed in a strong magnetic field causes the magnetic field to bend by discontinuities such as cracks or pinholes, which exist on the object surface or relatively shallow subsurface, to leak out at the defective surface as if magnetic poles were produced there. If you apply TASETO JIKI CHECK to the leakage surface, its magnetic particles are absorbed over a wide range by the defective surface, thus making minute flaws visible to the naked eye. The magnetic particle testing method employs the principle.

Key:1. Item to be inspected 2. Magnetic particles 3. Magnetic field 4. Surface flaw 5. Internal flaw 6. Magnetic pole 7. Flaw

Testing Method

The magnetic particle testing follows the procedure as follows.
Pre-cleaning
Magnetization (direct current, current induction, prod, coil or yoke method)
Application of TASETO JIKI CHECK
(continuous, residual, spraying, immersion, wet or dry method)
Interpretation (under white light or black light in a dark room)
Demagnetization (attenuation or transmission method)

Product List

Fluorescent magnetic Particles

Designation Fluorescent color Mean particle size Application Characteristics
F-300 Greenish yellow 7.0μm Raw materials General inspection
F-330(E) Greenish yellow 5.0μm Precision parts Precision inspection. Standard type
F-660 Greenish yellow 4.5μm Precision parts Precision inspection
F-910 Greenish yellow 10μm Automated testing Very high brightness, good durability.
G-660 Greenish yellow 4.5μm Precision parts Instant type, no dispersing agent is required.

Non-fluorescent magnetic particles

Designation Appearance Mean particle size Method
B-100 Black powder 15μm Dry
B-200 Black powder 5μm Wet
B-200 Aerosol 1μm Wet

Contrast Paint

Contrast Paint M1 Aerosol

Dispersible agents for magnetic particles

Designation Addition rate Characteristics
SP-700 1~2% Good dispersibility and wettability of magnetic particles. Also excellent in defoaming and rust resistance.

Induced type LED blacklight (cordless)

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