Ndt Stories

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(1) Ndt Application in Automotive Industry -Ultrasound Testing of Automobile Half-axle Fracture failure of half axle is mainly due to high frequency and low-stress fatigue damage, and the existence of internal defects of workpiece is one of the important reasons for fatigue fracture. Ultrasound can be used to inspect the raw materials of the semi-axle and the semi-finished products after forging. When diagnosing, the high-frequency electric pulse is transformed into ultrasonic wave by a probe, and the coupling agent enters the half axis. When the incident wave encounters defects (i.e. heterogeneous interfaces), due to its different acoustic properties, the reflected beam will be transformed into high-frequency electric pulse through the probe. After amplification, the position, size and nature of the internal defects in the half-axis can be judged according to the position, amplitude and waveform characteristics of the reflected echo. (2) Ndt Application in Automotive Industry-Detection of Surface Defects of Parts by Magnetic Powder Testing http://www.bkneddy.com/eddy-current-testing-equipment/ect-for-automotive-and-aerosapce/

ECT Eddy current testing 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. The main features of eddy current tester are: 1) The detection sensitivity of the surface of the conductive material and the near surface defects is high; 2) A wide range of applications can be monitored for various physical and technological factors affecting the characteristics of induced eddy currents; 3) It is easy to realize high-speed, high-efficiency and automatic detection of tubes, rods and wires without using a coupling agent; 4) Under certain conditions, it can reflect information about the crack depth; 5) Monitoring can be carried out in the case where other detection methods such as high temperature, thin-walled tubes, thin wires, and inner surface of the parts are not applicable.

https://www.bkneddy.com/a-closer-look-at-the-mechanics-of-ultrasonic-flaw-detector-working-functionality.html Ultrasonic flaw detectors are vital tools in the field of non-destructive testing (NDT). Designed to assess the integrity of structures and materials, these devices employ the principles of ultrasonic waves to detect and locate defects that may otherwise remain hidden. In this article, we will delve into the working mechanism of an ultrasonic flaw detector, shedding light on the fascinating world of wave analysis.

https://www.bkneddy.com/eddy-current-testing-equipment/ect-for-automotive-and-aerosapce/ NDT Application: Eddy current testing ndt technology has been widely used in the detection of metal components in the automotive The eddy current technology is usually used to detect engine blade cracks, bolts, cracks in the screw holes, multi-layer structure of the aircraft, landing gear, wheels and aluminum skin as the main NDT non destructive testing methods. And subsurface defects, and used to detect defects in the wing joint weld. In the detection, it can effectively suppress the shaking of the probe, and the material is uneven and cause interference signals. Metal magnetic memory testing technology can be used to diagnose the stress concentration of the above components or early damage.

https://www.bkneddy.com/eddy-current-testing-equipment/connecting-rod-hardness-vortex-sorting-machine.html The connecting rod hardness eddy current sorting machine has a calibration device, input compensation parameters, automatic/manual temperature compensation and light intensity compensation, and automatic temperature measurement and temperature correction. The digital potentiometer is used to adjust the gain of the amplifier through program control. The gain parameters can be set for different battery chips, and the software working mode can be changed to adapt to various battery test applications without changing the hardware.

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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.

Non-Destructive Testing (NDT/ NDT testing) Techniques or Methodologies allow the investigator to carry out examinations without invading the integrity of the engineering specimen under observation while providing an elaborate view of the surface and structural discontinuities and obstructions

https://www.bkneddy.com/global-market-prospects-for-global-inspections-ndt.html Nondestructive testing can determine the physical properties of materials, such as ductility, tensile strength and fracture toughness. We usually use non-destructive testing to determine the reliability and integrity of the product in order to control the whole manufacturing process. In addition, the government's safety regulations are increasingly stringent in terms of quality control, reliability and safety of machine performance, while manufacturers'demand for improving machine quality and life is also increasing. These are the main factors contributing to the development of the global nondestructive testing equipment market. However, compared with the rapid development of equipment market, the lack of non-destructive professional and technical personnel is a difficult problem that we have to solve urgently.

ECT Eddy current testing 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. The principle of eddy current testing is that the coil with alternating current is placed on the metal plate to be measured or outside the metal, tube to be measured (see figure). The alternating magnetic field will be generated inside and near the coil, which makes the induced alternating current in the sample appear to be eddy, which is called eddy current. Under certain conditions, the current through the coil is invariable. If the coil is close to the workpiece under test, like a ship in the water, the eddy current will be induced in the workpiece. Under the influence of the eddy current, the coil current will change. Because the size of the eddy current varies with the defect in the workpiece, the change of coil current can reflect the defect in the workpiece.

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https://www.bkneddy.com/ultrasonic-flaw-detection-eddy-flaw-detection.html https://www.bkneddy.com/eddy-current-testing-equipment/eddy-current-testing-equipment-tube-bar-and-wire/be-bar-and-wire/ https://www.bkneddy.com/eddy-current-testing-equipment/ect-for-automotive-and-aerosapce/ In conclusion, to purchase a good eddy current flaw detector, we need to check and compare eddy current flaw detectors as many as possible, and learn about its application in the market.

An electric pulse is a pulse generated by electrons, and a pulse is a process of changing a voltage in a short time. Electropulsing is an unsteady current field generated by a capacitor or an intermittent source. The alternating current we use can be regarded as a pulse current, and one of the cycle processes can be regarded as an electrical pulse. Modern electric pulse technology has developed to the trend of higher frequency and high energy peaks. It has a wide range of applications in materials testing, biology, medicine, nuclear energy, military and other fields. The main working principles are high energy Joule heating effect, hot pressing effect, high-frequency magnetic induction effect, electroforming and so on. Common waveforms are a rectangular, sinusoidal, rectangular, sinusoidal, group, and so on.

There are two main types of ball studs: one is a combination of a spherical pin and an integral ball seat, and the other is a combination of a hemispherical ball pin and a spherical member. In the past, coil springs were used for preloading and compensating for wear. Nowadays, synthetic resin pellets with elasticity and lubrication are widely used, which reduces the cost and improves the steering stability. In addition, the material and shape of the dust cover, the type of grease, etc. have been greatly improved, the grease nipple has been eliminated, and a maintenance-free structure has been realized. The ball stud is mainly composed of an end cap, a ball pin, a ball seat and a dust cover. Ball studs are widely used in independent suspension systems, and the control arm or thrust rod is often connected to other components through a ball stud at the end. The main function of the ball pin is to achieve the up and down of the wheel and the steering movement. The ball studs eddy current sorter is a sorting machine with high practical value in industrial applications. As one of the professional manufacturers of vortex separators, BKN Automation will introduce you to this product in this article.