Principle of Magnetic Flux Leakage Non-destructive Testing
Ferromagnetic workpieces such as steel pipes are magnetized by external magnetic field. Magnetic lines pass through intact areas evenly.
Defects like cracks, pits and inclusions distort the magnetic circuit, causing partial magnetic lines to leak out and form leakage magnetic field.
Probes capture leakage magnetic signals, and the system analyzes to determine defect position, size and type.
This magnetic flux leakage non-destructive testing device is professionally developed for ferromagnetic metal defect inspection. It accurately identifies cracks, scratches, inclusions, corrosion and wear damages on steel pipes, rails, steel cables and pressure vessels. Widely applied in petroleum, pipeline transportation, metallurgy, railway and machinery manufacturing industries. Stable performance, easy operation and reliable detection results.
Core Working Principle
Apply external magnetic field to magnetize metal workpieces. Magnetic lines penetrate evenly in intact areas. Defects will distort magnetic circuit and form leakage magnetic field. High-sensitivity probes capture magnetic signals, the system automatically analyzes and marks defect location, size and category.
Main Functions
- Detect transverse defects of steel pipes: outer folds, outer scars, transverse scratches, inclusions
- Real-time online inspection of corrosion and damage on oil & gas transmission pipelines
- Identify broken wires and wear conditions of steel ropes and cables
- Screen internal hidden defects of steel plates and steel strips
- Test stress cracks of bolts and metal fasteners
- Inspect corrosion damage on pressure vessels and storage tank walls
- Detect rail damage for rail transit
- Defect inspection of petroleum drill pipes and sucker rods
Application Scenarios of Magnetic Flux Leakage NDT Equipment
- Wall thickness and crack inspection of steel pipes and seamless tubes
- On-line corrosion and damage inspection of oil & gas pipelines
- Broken wire and wear detection of steel ropes and cables
- Internal defect screening of steel plates and strips
- Stress crack testing of bolts and fasteners
- Corrosion inspection of pressure vessels and tank walls
- Damage detection of railway rails
- Defect inspection of petroleum drill pipes and sucker rods
Product Advantages
- Own 15 independent patents, complete qualification certificates
- High detection accuracy, stable & durable industrial grade quality
- Intelligent signal analysis, fast defect positioning
- Wide applicable range, fit multiple ferromagnetic metal materials
- Simple operation, low maintenance cost
- Support long-time continuous online working
Product Parameters
Detection Type: Magnetic Flux Leakage NDT
Applicable Material: Ferromagnetic metal
Detection Object: Crack, corrosion, scratch, inclusion, wear, broken wire
Working Mode: Online continuous inspection
Feature: High precision, intelligent identification, easy installation
Package & After-sales
Standard export packaging, safe transportation. Professional technical support, installation guidance and after-sales service provided.
