Inspection, investigation example 3 jifunsagurikizukensa
Magnetic Particle Testing becomes the laboratory procedure using magnetism. One becoming subject to examination becomes the materials drawn to a magnetic body, I mean magnetic force. A kind is in Magnetic Particle Testing, but comments on the law between poles adopting in us.
Magnetic Particle Testing
Magnetic Particle Testing is called MPT (Magnetic Particle Testing) and becomes the laboratory procedure using magnetism.
It becomes the materials (steel) drawn to a magnetic body, I mean magnetic force to become the subject of examination. I make use of this characteristic and let eyes detect an invisible crack and wound by letting you magnetize an investigation object and can visually observe it.
A kind is in Magnetic Particle Testing, but comments on the law between poles adopting in us.
I perform the processing along the purpose beforehand to disturb that I let you magnetize wound itself when an alien substance such as paint, the rust attaches to a target mask to flaw-detect. For example, the photograph removes paint for the inspection; is worked.
Work preprocessing photograph
I magnetize it to magnetize subjects of survey appropriately so that the direction of the wound and a direction of the magnetic flux go directly.
In the method of the magnetization, various magnetization methods are prescribed in JIS (Japanese Industrial Standards). I adopt the law between poles in us.
Adsorption of jifun
I attach to the magnetic pole of the wound part by a wound part becoming the magnetic pole by magnetization, and spraying the special fluorescent paint consisting of magnets called jifun.
Adsorption photograph of jifun
Observation of the damage part
I make it easy to let you visualize jifummoyo which you detected by the work mentioned above using ultraviolet rays signal lamp, and to observe it.
Observation photograph of the part to flaw-detect
I prevent deterioration by repainting the removal, antirust treatment and paint of datsuji (I remove magnetization) and jifun as needed.
Work postprocessing photograph