Principle of Radiographic Detection
The English name of radiographic testing is: radiographic testing, so it is also called RT testing. Due to the difference in the acoustic properties of the object's material and its internal discontinuities (defects), when ultrasonic waves are encountered during the propagation of the object, an emission phenomenon will occur. By recording the time and energy changes of the reflected echo, the internal quality of the object can be evaluated. The advantage of ultrasonic testing is that it is easy to carry and is not restricted by the operating environment. It is especially suitable for the detection of thicker products and area-type defects. Radiographic detection objects: metallic materials, non-metallic materials, composite materials
Radiographic Detection Methods
Ray detection can be divided into film photographic detection (RT) and digital imaging detection (DR) according to different record carriers. At the same time, CT images can be reconstructed through DR imaging at different projection angles to achieve three-dimensional imaging detection. We can provide DR/CT detection services with density resolution better than 1% and spatial resolution reaching 0.1mm (conventional applications) or 100nm (material analysis).
Radiographic testing standards
●Domestic standards: NB/T 47013, GB/T 3323, GB/T5677, GB/T35389, etc.
●International/EU standards: ISO 17636, ISO 10675, ISO 4993, EN12681, EN16407, etc.
●American standards: ASTM E94, ASTM E1742, ASTM E1030, ASTM E1032, ASTM E446, ASTM E192, ASTM E155, ASTM E505, ASTM E2698, etc.
Our Competitive Advantage:
Zhongke Testing is the pioneer and leader in third-party non-destructive testing and verification services in China. It provides comprehensive non-destructive testing system solutions for steel structure engineering (buildings, power plants, etc.), boilers, pressure vessels, pipelines, bridges, wind power, thermal power engineering ships and offshore facilities, motor vehicles, hoisting machinery, iron towers, amusement facilities and many other industries. It has successfully tested various parts, structural parts and equipment, and has effectively promoted the harmonious and rapid development of customers and industries.