The principle and application of NDT portable X-ray welding testing machine: NDT portable X-ray welding testing machine is the use of the acoustic, optical, magnetic, and electrical properties of materials to detect the presence of defects or unevenness in the tested object without damaging or affecting its performance. It provides information on the size, location, nature, and quantity of defects. Compared with destructive testing, non-destructive testing has the following characteristics. The first is non-destructive, as it does not compromise the performance of the detected object during testing; The second is comprehensive, as the detection is non-destructive, it is necessary to conduct a 100% comprehensive detection of the tested object, which cannot be achieved by destructive detection; The third is comprehensive, and destructive testing is generally only applicable to the testing of raw materials, such as tension, compression, bending, etc. commonly used in mechanical engineering. Destructive testing is carried out on manufacturing raw materials, and for finished products and in use items, destructive testing cannot be carried out unless they are not intended to continue to serve. Non destructive testing, on the other hand, does not damage the performance of the tested object. So, It can not only perform full process testing on manufacturing raw materials, intermediate processes, and even final products, but also test equipment in service. Characteristics of NDT portable X-ray welding testing machine： The X-ray generator has a small volume, with an anode grounded and forced cooling by a fan; ◆ Lightweight, easy to carry, and simple to operate; Work and rest in a 1:1 ratio; Beautiful appearance and reasonable structure; ◆ Delayed exposure to ensure operator safety; The main purpose of NDT portable X-ray welding testing machine ： The main purpose of the equipment is to inspect the processing and welding quality of materials and components such as ship hulls, pipelines, high-pressure vessels, boilers, aircraft, vehicles, and bridges in industrial sectors such as national defense, shipbuilding, petroleum, chemical, mechanical, aerospace, and construction, as well as internal defects and the inherent quality of various light metals, rubber, ceramics, etc.

The X-ray crystal orienter​ operates based on the principle of X-ray diffraction. The high voltage generated by the high-voltage transformer acts on the X-ray tube, producing X-rays. When the X-ray is irradiated onto the sample, diffraction occurs when the Bragg diffraction condition (n λ=2dsin θ) is satisfied. Among them, λ is the wavelength of X-rays, d is the spacing between atomic planes inside the crystal, and θ is the angle between the incident X-rays and the crystal plane. The diffraction line is received by the counting tube and displayed on the microampere meter of the amplifier. When using a monochromator, the diffraction line is monochromatized and then received by the counter and displayed on the microampere meter of the amplifier, thereby improving measurement accuracy. The X-ray crystal orienter can accurately and quickly determine the cutting angle of natural and artificial single crystals (piezoelectric crystals, optical crystals, laser crystals, semiconductor crystals), and is equipped with a cutting machine for directional cutting of the above-mentioned crystals. X-ray crystal orienter is an indispensable instrument for precision machining and manufacturing of crystal devices. The X-ray crystal orienter is widely used in the research, processing, and manufacturing industries of crystal materials. The X-ray crystal orienter is easy to operate, does not require professional knowledge or skilled techniques, displays the angle digitally, is easy to observe, and reduces reading errors. The display of the X-ray crystal orientation instrument can be zeroed at any position, making it easy to display the deviation value of the chip angle. The dual angle measuring instrument can work simultaneously, improving efficiency. The X-ray crystal orienter has a special integrator with peak amplification, which improves the detection accuracy. The integration of X-ray tube and high-voltage cable increases high-voltage reliability. The detector high-voltage adopts DC high-voltage module and vacuum suction sample board, which improves the angle measurement accuracy and speed. Overall, the X-ray crystal orienter is a precision instrument based on the principle of X-ray diffraction, which provides important technical support for crystal material research and related applications by accurately measuring the cutting angle of crystals.

The TDM-20 Benchtop X-ray diffractometer uses a new high-performance array detector, and the loading of this detector has greatly improved the overall performance of the machine. The TDM-20 Benchtop XRD is mainly used for phase analysis of powders, solids, and similar paste like materials. The TDM-20 Benchtop X-ray diffractometer utilizes the principle of X-ray diffraction to perform qualitative or quantitative analysis, crystal structure analysis, and other polycrystalline materials such as powder samples and metal samples. Benchtop XRD​ is widely used in industries such as industry, agriculture, national defense, pharmaceuticals, minerals, food safety, petroleum, education, and scientific research.

The TD-3700 high-resolution X-ray diffractometer​ is equipped with a variety of high-performance detectors such as high-speed one-dimensional array detectors, two-dimensional detectors, SDD detectors, etc. TD-3700 X-ray diffractometer integrates fast analysis, convenient operation, and user safety. The modular hardware architecture and customized software system achieve a perfect combination, making its failure rate extremely low, anti-interference performance good, and ensuring long-term stable operation of high-voltage power supply. TD-3700 X-ray diffractometer can increase the diffraction calculation intensity by tens of times or more, obtain complete high-sensitivity, high-resolution diffraction patterns and higher counting intensity in a shorter sampling period, and also support transmission data scanning. The resolution of transmission mode is much higher than that of diffraction mode, which is suitable for structural analysis and other fields. Diffraction mode has strong diffraction signals and is more suitable for routine phase identification in the laboratory.

Fiber accessories are tested for their unique crystal structure using X-ray diffraction (transmission) method. Test the orientation of the sample based on data such as fiber texture and half peak width.

The TDF series X-ray crystal analyzer is a large-scale analytical instrument and X-ray instrument used to study the internal microstructure of materials. It is mainly used for single crystal orientation, defect inspection, determination of lattice parameters, determination of residual stress, study of the structure of plates and rods, study of the structure of unknown substances, and single crystal dislocations.

The TD-5000 X-ray single crystal diffractometer is mainly used to determine the three-dimensional spatial structure and electron cloud density of crystalline substances such as inorganic, organic, and metal complexes, and to analyze the structure of special materials such as twinning, non commensurate crystals, quasicrystals, etc. Determine the accurate three-dimensional space (including bond length, bond angle, configuration, conformation, and even bonding electron density) of new compound (crystalline) molecules and the actual arrangement of molecules in the lattice; It can provide information on the crystal cell parameters, space group, crystal molecular structure, intermolecular hydrogen bonding and weak interactions, as well as structural information such as molecular configuration and conformation. X-ray single crystal diffractometer​ is widely used in analytical research in chemical crystallography, molecular biology, pharmacology, mineralogy, and materials science. Single crystal XRD is a high-tech product under the National Major Scientific Instrument and Equipment Development Project of the Ministry of Science and Technology, led by Dandong Tongda Technology Co., Ltd., filling the gap in the development and production of single crystal x-ray diffractometer in China.

Powder X-ray diffractometer is mainly used for phase qualitative and quantitative analysis, crystal structure analysis, material structure analysis, crystal orientation analysis, macroscopic or microscopic stress determination, grain size determination, crystallinity determination, etc. of powder, block or film samples. The TD-3500 X-ray diffractometer produced by Dandong Tongda Technology Co., Ltd. adopts imported Siemens PLC control, which makes the TD-3500 X-ray diffractometer have the characteristics of high accuracy, high precision, good stability, long service life, easy upgrade, easy operation and intelligence, and can flexibly adapt to testing analysis and research in various industries!

The TD-3700 X-ray diffractometer is a high-performance and multifunctional X-ray diffractometer produced by Dandong Tongda Technology Co., Ltd. The main features are high-performance detectors, diverse scanning methods, convenient and safe operation, stable and reliable performance. For specific details, please refer to the website of Dandong Tongda Technology Co., Ltd.

The X-ray irradiator can generate high-energy X-rays to irradiate cells or small animals. Used for various basic and applied research. Throughout history, radioactive isotope irradiators have been used, which require transporting samples to a core irradiation facility. Today, smaller, safer, simpler, and lower cost X-ray irradiation equipment can be installed in laboratories for convenient and rapid irradiation of cells.

X-ray absorption fine structure spectrometer (XAFS) is a powerful tool for studying the local atomic or electronic structure of materials, widely used in popular fields such as catalysis, energy, and nanotechnology.

Scientific Instrument Breakthrough: Dandong Tongda's TD-3700 X-Ray Diffractometer Empowers Research Innovation Dandong Tongda Science and Technology Co., Ltd. is a high-tech enterprise specializing in the research, development, and production of X-ray analysis instruments. Its flagship product, the TD-3700 X-Ray Diffractometer , integrates rapid analysis, user-friendly operation, and robust safety features. The perfect synergy between its modular hardware and customized software systems makes it a powerful tool for research fields such as materials science, chemistry, and mineralogy. TheTD-3700 X-Ray Diffractometer demonstrates significant advantages in both detection technology and measurement modes, enabling it to meet a wide range of analytical demands. Core Technology and Performance High-Performance Detectors: The instrument can be equipped with optional high-speed 1D array detectors (e.g., MYTHEN2R), SDD detectors, or 2D detectors. Utilizing hybrid photon counting technology, it operates with no readout noise, achieves data acquisition speeds tens to hundreds of times faster than traditional scintillation detectors, and effectively eliminates fluorescence effects for excellent energy resolution. For instance, the 1D array detector features 640 channels with a remarkably short readout time of just 89 microseconds, contributing to an outstanding signal-to-noise ratio. Flexible Scanning Modes: The TD-3700 X-Ray Diffractometer supports two primary data scanning methods: conventional reflection (diffraction) mode and transmission mode. The transmission mode provides higher resolution, making it suitable for analyzing limited samples or conducting structural analysis. The reflection mode offers a stronger signal, which is more appropriate for routine phase identification in laboratory settings. This flexibility enables the instrument to handle a wide variety of sample types, ranging from trace amounts of powder and bulk solids to even liquids and viscous samples. Precision Goniometer System: It employs a θS-θd vertical goniometer where the sample remains horizontal and stationary during measurement. This design not only facilitates easier sample preparation but also helps prevent potential corrosion of the goniometer's axis system by samples, thereby extending its operational lifespan. With a wide 2θ scanning range (-110° to 161°) and exceptional repetitive accuracy of 0.0001°, it ensures highly precise and repeatable measurements. Instrument Features & Safety Assurance The TD-3700 X-Ray Diffractometer is designed with a strong emphasis on user experience and operational safety. User-Friendly Design: Effortless Operation: Features a one-click acquisition system and incorporates a touchscreen interface for real-time monitoring of instrument status. Modular Design: Components are designed for plug-and-play functionality, requiring no calibration and ensuring straightforward maintenance. Comprehensive Safety Protection: Incorporates an electronic lead door interlock system for dual-layer protection, ensuring user safety. External radiation leakage from the protection system is ≤ 0.1μSv/h, complying with stringent international safety standards. Includes multiple protective functions against excessively high/low kV, excessively high/low mA, water flow failure, and X-ray tube overheating. Stable & Reliable System: Utilizes a high-frequency, high-voltage X-ray generator known for its stable and reliable performance, with system stability ≤ 0.005%. The integrated recirculating chiller has a built-in cooling function, eliminating the need for an external water circulation unit. Applications & Global Recognition The TD-3700 X-Ray Diffractometer is widely used for qualitative/quantitative phase analysis, crystal structure analysis, materials structure research, grain size determination, and crystallinity measurement. Recognized for their reliable quality, Dandong Tongda's products have been exported to numerous countries and regions including the United States, South Korea, Iran, Azerbaijan, Iraq, and Jordan, earning validation in the international market. The company has also obtained ISO9001 and other international quality management system certifications.Dandong Tongda Science and Technology Co., Ltd.provides customers with comprehensive service and support, including after-sales service, professional training, and international business support. We warmly welcome your inquiries and look forward to your procurement!