https://www.bkneddy.com/ultrasonic-testing-equipment/steel-pipe-testing/Steel having a hollow section that is much longer than the diameter or circumference. According to the cross-sectional shape, it is divided into round, square, rectangular and special-shaped steel pipes;…
https://www.bkneddy.com/portable-magnetic-flux-leakage-testing-equipment/Magnetic flux leakage test refers to the formation of a leakage magnetic field on the surface of a test piece after it is magnetized due to defects on the surface or near-surface of the test piece.…
https://www.bkneddy.com/magnetic-flux-leakage-testing-equipment/mfl-7389-tubing-magnetic-flux-leakage-detector.htmlTubing repair is an important measure to reduce the comprehensive cost of production in oil production plants to improve the quality of repairing tubing.…
https://www.bkneddy.com/magnetic-flux-leakage-testing-equipment/mfl101-tank-floor-mfl-scanner.htmlTechnical Characteristics of MFL101 Tank Floor MFL ScannerThe MFL tank floor scanner has a unique full modular structure, from the main body of the computer mechanism the handle of MFL101 Tank Floor Scanner can be quickly folded, disassembled.…
https://www.bkneddy.com/edm-notch/automatic-edm-notch/Automatic EDM Notch is the ideal equipment for processing artificial defects of pipe rod standards in non-destructive testing work.…
https://www.bkneddy.com/eddy-current-testing-equipment/ECT Eddy current testing used by eddy current testing machine is a non-contact testing method, which mainly uses the electromagnetic field and electromagnetic induction between metals to detect. It is one of the NDT non-destructive testing methods in the industry.…
https://www.bkneddy.com/eddy-current-testing-equipment/eddy-current-testing-equipment-tube-bar-and-wire/ECT Eddy current testing used by Eddy current equipment for sale is a non-contact testing method, which mainly uses the electromagnetic field and electromagnetic induction between metals to detect. It is one of the NDT non-destructive testing methods in the industry.…
https://www.bkneddy.com/eddy-current-inspection-is-inconvenient-to-be-used.htmlEddy Current Inspection is inconvenient to be used in complex-shaped componentsEddy current flaw detection is a defect of an alternating current electromagnetic coil in the metal plane layer, which is not convenient to use in complex shape components. In thermal power plants, it is mainly used to detect condenser tubes, turbine blades, turbine rotor central holes, and welds. Principle When AC is fed into the coil, if the voltage and frequency used remain unchanged, the current through the coil will also remain unchanged. If a metal tube is placed in the coil, the circumferential current, or eddy current, is induced on the surface of the tube. The direction of the eddy current magnetic field is opposite to the magnetization direction of the applied current, so it will offset part of the applied current so that the impedance of the coil and the magnitude and phase of the current will change. The impedance of the coil is affected by the change of diameter, thickness, conductivity and permeability of the tube and the existence of defects.…
https://www.bkneddy.com/development-of-pulsed-eddy-current-inspection.htmlDevelopment of Pulsed Eddy Current InspectionPulsed eddy current testing inspection technology is a new non-destructive testing technology for subsurface defect detection. It is a new application field of eddy current testing. It determines the location of defect by the time when the maximum magnetic field appears, so as to realize non-destructive detection and quantitative description of defect.As early as the 1970s, Libby of the United States put forward the theory and application of pulsed eddy current inspection technology. However, in recent years, this technology has made some substantial progress and success in the University of Iowa in the United States, DERA in the United Kingdom and Cegely Laboratory in France, and has attracted much attention in the research and development of modern non-destructive testing technology. Compared with the traditional single-frequency sinusoidal eddy current, the pulsed eddy current has many advantages.…
https://www.bkneddy.com/application-of-ultrasound-in-practical-work-of-weld-flaw-detector.htmlApplication of Ultrasound in Practical Work of Weld Flaw DetectorAfter receiving the task of flaw detection, the first thing is to understand the technical requirements of the drawings for welding quality. Ultrasound is used in full penetration weld flaw detector. Its flaw detection ratio is calculated by the percentage of each weld length, and it is not less than 200 mm. For locally inspected welds, if there is an impermissible defect, the inspection length should be increased at the extension of both ends of the defect. The increase length should not be less than 10% of the length of the weld, and it should not be less than 200 mm. When there are still impermissible defects, 100% flaw detection should be carried out for the weld. Secondly, when using the weld flaw detector, the timing of flaw detection should be clear. Carbon structural steel should be tested after the weld cooling to the ambient temperature and low alloy structural steel can be tested 24 hours after the completion of welding. In addition, the thickness of base metal, joint type and groove type of the workpiece to be measured should be known in use. Generally, the base metal thickness of weld flaw detector is between 8 and 16 mm. The groove type includes I type, single V type and X type. The preparatory work before flaw detection can be carried out only after making clear the above.…
https://www.bkneddy.com/eddy-current-testing-equipment/valve-tappet-eddy-current-flaw-detector-qmtzet-04.htmlTappet full automatic eddy current testing system is a full automatic crack hardness sorter that integrates light, electricity and machinery. The whole system includes a main control system, charging system and mechanical transmission system. The workpiece is sent to the area to be inspected by clamping and transverse moving. The workpiece surface is scanned by a point probe, which can inspect the outer circle, bottom surface and chamfered end surface of the tappet at the same time. At the same time, the system also supports automatic charging, automatic detection and automatic sorting. It can also be connected to the production line of the factory and can be selected for off-line automatic detection and sorting.…
https://www.bkneddy.com/eddy-current-testing-equipment/pre-multi-frequency-eddy-hardness-separator.htmlEddy Current Brake for SaleStimulating the coil makes a magnetic induction to the tested material. The induced electromotive force received by the testing coil is related to the shape and size of the material hysteresis loop. When the low-frequency sinusoidal wave excitation voltage is magnetically induced, the induced electromotive force obtained is also a sinusoidal waveform, usually including a fundamental wave. By measuring the fundamental wave component of the inductive potential of the testing coil, the measured alloy composition and heat treatment status can be obtained, thereby achieving material hardness sorting.…
https://www.bkneddy.com/eddy-current-testing-equipment/lget-553-aluminum-tube-eddy-current-flaw-detector.htmlLGET-553 Aluminum Tube Eddy Current Flaw Detector Brief IntroductionThe aluminum tube is a type of non-ferrous metal which may have one or more closed holes which are thick and uniform in cross-section. It is widely used in electrical, agricultural, electromechanical and other industries. Therefore, when using aluminium tubes, we need to test the quality of the aluminium tubes.…
https://www.bkneddy.com/eddy-current-testing-equipment/gset-551-steel-wire-eddy-current-flaw-detector.htmlGSET-551 Steel Wire Eddy Current Flaw DetectorGSET-551 Steel Wire Eddy Current Flaw Detector Brief IntroductionUsing the eddy current signal processing method and high-performance DSP algorithm, the NDT wire rope tester detection ability of micro-crack is as high as 0.05mm deep crack.…
https://www.bkneddy.com/application-of-ndt-inspection-equipment.htmlApplication of Ndt Inspection EquipmentNdt inspection equipment is widely used in industry, such as nuclear industry, weapon manufacturing, machinery industry, shipbuilding, petrochemical industry, railway and high-speed train, automobile, boiler and pressure vessel, special equipment, customs inspection, etc.…
https://www.bkneddy.com/magnetic-flux-leakage-testing-equipment/mfl101-tank-floor-mfl-scanner.htmlTechnical Characteristics of MFL101 Tank Floor MFL ScannerThe MFL tank floor scanner has a unique full modular structure, from the main body of the computer mechanism the handle of MFL101 Tank Floor Scanner can be quickly folded, disassembled. It is easy to transport and access manholes.…
https://www.bkneddy.com/ultrasonic-testing-equipment/steel-pipe-testing/Steel having a hollow section that is much longer than the diameter or circumference. According to the cross-sectional shape, it is divided into round, square, rectangular and special-shaped steel pipes; it is divided into carbon structural steel pipe, low-alloy structural steel pipe, alloy steel pipe and composite steel pipe according to the material;…
https://www.bkneddy.com/ultrasonic-testing-equipment/steel-bar-testing/The steel bar is rolled by a rolling mill and produces both surface defects and internal defects during the rolling process. The internal defect is that the original defects of the steel chain or billet are extended during the rolling process. These defects are mainly concentrated in the central part of the steel rod. The forms mainly include slag inclusion, shrinkage, delamination, and looseness.…
https://www.bkneddy.com/ultrasonic-testing-equipment/What is Ultrasonic?The process of mechanical vibration propagation in the medium is called a wave. The human ear can feel the elastic wave with a frequency higher than 20 Hz and lower than 20,000 Hz, so the elastic wave in this frequency range is also called a sound wave.…