Overview
MT-1C Portable Magnetic Particle Testing Equipment is a digitalization flaw detection device powered by a large-capacity lithium battery pack. It provides magnetization power through frequency conversion inverter and signal phase shift processing, getting rid of the dependence on 220V power supply, low power consumption, a single charge can work continuously for more than 4 hours, the battery supports online and offline charging, especially suitable for field without power supply and high-altitude work.
Features
1. Intelligent high definition 3.2-inch color LCD display, which can display battery power, lighting mode, lighting luminance and output power.
2. Large-capacity lithium battery pack power supply, strong portability, solves the drawback of relying on 220V power supply, and is suitable for field and high-altitude flaw detection.
3. The lighting luminance, lighting mode, power and yoke spacing are adjustable, and the setting state can be stored to meet different flaw detection needs.
4. Adopt a new power mode to improve defect detection depth and surface Sensitivity.
5. The electromagnetic yoke adopts pulsating power supply technology, which can work continuously without interruption, eliminating the need for traditional gap time.
6. Combining the advantages of traditional Magnetic Particle Testing Equipment, the detection of near-surface defects is fast, clear and accurate.
7. The instrument is compact and equipped with an instrument bag, which can span the waist obliquely, reducing labor intensity and improving work efficiency.
Principle
The instrument magnetizes the ferromagnetic workpiece to be tested by placing it in a strong magnetic field or by passing a strong current. If there are defects (such as crazing, folding, inclusions) on or near the surface of the workpiece, the magnetic lines of force will generate a magnetic leakage field at the defect. When magnetic particles with good magnetic conductivity are applied, the magnetic leakage field will absorb magnetic particles and pile up to form visible magnetic marks, showing the location, size, shape and severity of the defect under suitable lighting.
Applications
Aircraft manufacturing, boiler Pressure Vessel, electric power, oilfield, shipbuilding, steam turbine and internal combustion engine parts, coal mine, machinery, standard parts, oil pump nozzles, automotive parts, bridge building, chemical industry, railway, large machinery parts, steel structure equipment and other industry products; due to forging, quenching, welding, fatigue caused by surface and near-surface defects detection, such as chain rods, crankshafts, bearings, high-strength bolts, springs, forgings, petrochemical pipe fittings, valves, blades, gears, anchor chains and welds and other geometric complex workpieces.
Standards
Type A 15/100 standard test piece
Steps
1. Choose the appropriate lighting method (white light or fluorescence) according to the working environment and adjust the luminance.
2. According to the workpiece shape and inspection requirements, adjust the electromagnetic yoke pole distance (75-180mm).
3. Set and store the required output power and other parameters through the instrument screen.
4. Place the electromagnetic yoke on the surface of the workpiece to be tested to ensure good contact.
5. Start the magnetization function to magnetize the workpiece.
6. Apply magnetic particles (dry or wet) to the magnetized area.
7. Observe the surface of the workpiece under appropriate lighting (white light or 365nm ultraviolet light) to check for magnetic marks.
8. Record the location, size, and shape of the defect.
Notice
• Operating Ambient Temperature should be between -10 ℃~ + 40 ℃, storage temperature between -20 ℃~ + 70 ℃.
• environment relative humidity should be ≤ 80%.
• There should be no strong vibration, no strong magnetic field, no corrosive medium or serious dust around.
• Make sure the battery is fully charged before use to ensure Continuous Operating Time.
The contact surface between the electromagnetic yoke and the workpiece should be kept clean to ensure the magnetization effect.
• Applying magnetic particles should be uniform to avoid accumulation affecting defect judgment.
• When using fluorescent magnetic particles, it is necessary to observe in a dark or darkroom environment with a 365nm ultraviolet light source.
• When charging the instrument, please use the matching 220V 50HZ charging power supply, and the charging time is about 3-4 hours.
• The instrument is small, please keep it properly to avoid falling or violent impact.
