Sheyang county Tengda flaw Detection Machine factory
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Sheyang County, Jiangsu Province Tengda flaw Detection machine factory

Phone: 0515-82385718

Fax: 0515-82331542


Add: Jiangsu Sheyang Economic Development Zone (west)

Contact Person: Mr. Zhu

Phone: 13004587009



Breakthrough in the use of magnetic flaw detection machine

Magnetic Flaw Detection MachineIt breaks through the current magnetic particle flaw detection can only detect the limitation of metal surface defects, make up for thin steel plate ultrasonic flaw detection difficulties. Portable Low-frequency Magnetic Flaw detector is a replacement product of magnetic flaw detection in nondestructive testing, which can reach 3-6mm and high sensitivity.

For the surface of the paint, rust and other defects of the workpiece, do not need to do treatment, flaw detection is convenient, no need demagnetization after flaw detection. Rapid detection speed, small size, light weight. The instrument won the national patent, and won the world's Young Invention Excellence Award, Department of Energy Science and Technology Progress Award.

Application range of magnetic flaw detection machine

LF Series portable low frequency magnetic flaw detector, it is a portable micro magnetic particle flaw detection equipment which uses magnetic yoke to magnetization the workpiece of ferromagnetic material, which is suitable for oil field, shipbuilding, coal mine, machinery, aircraft manufacture, automobile, bridge making, chemical industry, boiler pressure vessel, railway, electric power and so on, because of forging, quenching, welding, Fatigue, etc. caused by surface and near-surface defects.

such as chain rods, crankshaft, bearings, high-strength bolts, springs, forgings, pipe fittings, valves, blades, gears, rolling 锟, anchor chain and weld, such as the geometric shape of complex workpiece detection. The maximum current of the low-frequency generator is 30A, which is especially suitable for the workpiece with good surface paint and smooth finish.

Working principle

The magnetic field generated by direct current can usually penetrate into the interior of the part, while the magnetic field generated by alternating current is concentrated on the surface of the part, and the low-frequency magnetic flaw detector combines the advantages of DC and AC, and the frequency of the currents is inversely proportional to the depth of the flaw detection.

Low-frequency current is basically close to the detection depth of DC, and Low-frequency current is a kind of Mouthing, it can make the magnetic powder ranks slightly vibration, help the magnetic powder arrangement and form a magnetic mark, at the same time low frequency current and have the characteristic of alternating electricity, after flaw detection not demagnetization.

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