Bench Type Fluorescent Magnetic Particle Flaw Detector

I.Working principle

Magnetic particle inspection utilizes the interaction between the leakage magnetic field at the defect site of the workpiece and magnetic particles. It takes advantage of the difference in magnetic permeability between surface and near-surface defects (such as cracks, slag inclusions, hairline streaks, etc.) of steel products and the magnetic permeability of steel. After magnetization, the magnetic field at the discontinuous parts of these materials will be distorted, resulting in partial magnetic flux leakage and the generation of a leakage magnetic field. By taking advantage of the characteristic that the leakage magnetic field at the defect site can adsorb magnetic particles, This attracts magnetic powder to form a magnetic powder accumulation at the defect site - magnetic traces. Under appropriate lighting conditions, the location and shape of the defect are revealed

II. Usage

Fluorescent magnetic particle flaw detectors are used to detect fine defects such as cracks and slag inclusions on and near the surface of ferromagnetic workpieces (such as couplings) caused by forging, quenching, grinding, fatigue, thread processing, etc.

Part specification

diameter＜φ400mm,length 200~500mm

III. Standard

Magnetic particle flaw detector:GB/T8290—2011

Observation conditions for magnetic particle testing:GB/T 5097-2020/ ISO 3059:2012

American Society for Testing and Materials: Magnetic particle testing Method ASTM E1444-01

EU, international standards:DIN EN ISO 9934-2-2003

IV. Detection process

Feeding --- The mechanical hand grabs the parts to the waiting position --- the conveyor belt conveys the parts to the magnetization position --- threading, spraying, and magnetization --- The mechanical hand grabs the parts to the observation position --- observing the outer surface --- rotating the disc 360 degrees to observe the inner hole --- the mechanical hand grabs the parts to the demagnetization area --- the parts are demagnetized through the demagnetization coil --- The parts roll down to the unloading rack under the effect of gravity

V.Technical parameters

VI.Functions and features

• Dark room, unique shape design.
• Fixed ultraviolet lamp
• Fluorescent magnetic particle testing
• Bar threading magnetization, longitudinal magnetization, compound magnetization
• Touch screen control panel, English menu
• The current can be prefabricated with true RMS display
• The main components are of internationally renowned brands
• The power-off phase control function
• Automatic attenuation demagnetization

VII. Configuration table

1 set x fluorescent magnetic particle flaw detection line

2 set x magnetizing power supplies

1 set x magnetization mechanism

1 set x rotating observation table

2 set x of transplanting manipulators

1 set x darkroom

1 set x standard test pieces

1 set x magnetism meter

1 set x foot switch

1 set x suspended ultraviolet lamp

1 set x handheld ultraviolet lamp