تشخیص عیب مغناطیسی قابل حمل دیجیتال MT-1A، منبع تغذیه باتری لیتیومی با ظرفیت بالا را اتخاذ می کند. DC توسط اینورتر و پردازشگر سیگنال تغییر فاز به AC مبادله می شود تا قدرت آشکارساز را تامین کند، کاستی های آشکارساز ذرات مغناطیسی سنتی با تکیه بر منبع تغذیه 220 ولت را برطرف می کند. مصرف برق پایینی دارد و می تواند بیش از 4 ساعت کار مداوم داشته باشد. باتری را می توان در حین کار یا خاموش شارژ کرد. می تواند نظارت در زمان واقعی، تصویر را پردازش کند، داده ها را ذخیره کند، گزارش آزمایش را چاپ کند، نتایج بازرسی را ردیابی کند، الزامات عملکرد و مدیریت استاندارد را برآورده کند. به خصوص برای میدان بدون آزمایش میدان منبع تغذیه و عملیات در ارتفاع بالا مناسب است، نوآوری بازرسی دیجیتال پودر مغناطیسی را متوجه می شود.
Function & application
It is widely used in the industry of aircraft manufacturing, boiler and pressure vessel, electric, oil field, shipbuilding, turbine and combustion engine parts, mine, machinery, standard parts, oil pump, vehicle parts, bridging, chemical, railway, large mechanical components, steel structure equipment etc. It mainly detects the surface detection of forging, quenching, welding, fatigue, for example, irregular workpiece of chain, crankshaft, bearing, high strength bolt, spring, forging, petrochemical pipe, valve, vane, gear, anchor chain, welding seam etc.
Working Principle
Put the workpiece into high-intensity magnetic field, connect electric to make it magnetized, if there are flaws (crack,slag) in or near the surface, there will be a leakage around the flaws. Put good quality magnetic powder(usually the magnetic iron oxide powder)on the object, magnetic powder will gather together near the leaked magnetic field, piled up to form visible traces of magnetic powder. In the proper light, we can see the marks and judge the position, size, shape and degree of the flaws.
Working Conditions
Operatiom temperature: －10℃～＋40℃
Storage temperature: -20℃～＋70℃
Relative Humidity: ≤80％
The environment should avoid strong vibration, magnetic interference, corrosive medium and heavy dust.
Instrument Features
l The large capacity lithium battery makes it portable, solves the drawbacks of traditional, magnetic particle detector relying on the 220V power supply, with low power consumption, small size, battery can be charged when the detector is on and off. It is especially suitable for testing in field or high altitude;
l The brightness, power, lighting form of Mitech portable magnetic flaw detector series are adjustable, to meet the needs of different testing environment.
l New power mode improves the sensitivity and accuracy of surface and depth detection.
l Electromagnetic yoke adopts pulse power supply technology can continuous work without rest.
l Combines the advantages of traditional electromagnetic yoke, can make fast, clear, correct test of the surface.
l The brightness, power, polar distance are adjustable to meet the needs of different measurement conditions;
l The product is equipped with portable package, operator can put it on the waist, greatly reduce the labor intensity, improve work efficiency.
Operating Method and Attentions
l Connect the line with detector, start the detector, press detection, choose proper polar distance according to the workpiece.
l When making dry powder detection, put the powder on the workpiece, move the yoke with 40mm/s, make sure they are well connected, observe whether the powder is pile up.
l When detecting, there must be overlap, the overlap area should less than 25mm, judge the marks correctly.
l If the pile up is appeared, blow the redundant powder, make the mark clear.
l If the mark can’t be judged, you should polish the surface and test again; if the mark is flaw, press confirm to capture the photo.
Instrument Maintenance
l Digital portable magnetic flaw detector is precision detector, please note the following,
l Avoid plug or unplug the cable line
l After testing, use soft cloth to clean the oil, avoid it penetrating in the detector.
l Avoid strong vibration when moving the detector, put it in dry and ventilated place.
l Number keys are important, do not press too hard or use metal to knock.
l Reboot when it was turn off for 5s, do not reboot immediately.
l Do not unplug the charge when using continuous charge.
l The detector has customized battery and charger to protect the overcharge to battery, charging time is about 4-6 hours, red indicator means it is in charging, green means it is full.
l Horse shoe electromagnetic yoke should be well connected with workpiece, release the switch when the yoke leaving the workpiece, lubricate the turning joint to prevent rust.
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