The Diffractometer X-Ray Tube​ manufactured by Dandong Tongda Technology Co., Ltd. serves as a core component in numerous X-ray analytical instruments within China. Dandong Tongda's Diffractometer X-Ray Tube primarily features the following technical characteristics: Diverse Target Material Options: This X-ray tube offers a variety of target material choices, including Cu, Co, Fe, Cr, Mo, Ti, W, and more. Users can select the most suitable target material based on the elemental composition of the material being tested and the specific analysis requirements, to achieve optimal analytical results. Flexible Focal Spot Configurations: The product provides different focal spot sizes, such as 0.2×12mm, 0.4×14mm (fine focus), and 1×10mm. Smaller focal spot sizes help improve spatial resolution, while the different shape designs meet the optical system requirements of various analytical instruments like XRD and XRF. Wide Power Range: The maximum output power of the X-ray tube covers multiple levels, including 2.0kW, 2.4kW, and 2.7kW, enabling it to adapt to various application scenarios from routine analysis to those requiring high power. Key Technologies and Performance Advanced Generator Technology: The high-frequency, high-voltage generator designed for use with the X-ray tube can achieve a maximum output power of 5kW. It utilizes microcomputer automatic control, with tube voltage adjustment precision up to 1kV per step and tube current adjustment precision up to 1mA per step, ensuring precise and stable output signals. Exceptional Stability Performance: The output stability of the generator is better than 0.01%. The comprehensive stability of some high-end models can even reach ≤0.3%. This high level of stability is crucial for precision analytical work that requires long-term data acquisition. Comprehensive Safety Protection: The equipment is equipped with extensive alarm and protection devices, including multiple protection functions such as over-voltage, over-current, over-power, water shortage, and X-ray tube over-temperature, ensuring safe and reliable operation. Main Application Areas Dandong Tongda's X-ray tubes are primarily used in the following types of analytical instruments: X-Ray Diffractometers (XRD): Used for phase analysis of materials, crystal structure determination, etc. X-Ray Fluorescence Spectrometers (XRF): Used for qualitative and quantitative elemental analysis. Crystal Analyzers and Orienters: Can be used for single crystal orientation, defect inspection, etc.

The core function of the graphite curved crystal monochromator is to precisely filter out the desired Kα characteristic radiation from complex X-ray signals. This process is based on the Bragg diffraction principle, utilizing the precise arrangement and curved shape of the graphite crystal lattice to achieve selective transmission of X-rays. In practical applications, this component effectively eliminates interference from continuous X-rays, Kβ radiation, and fluorescent radiation generated by the sample itself. This filtering effect is particularly significant when analyzing samples containing elements such as manganese, iron, cobalt, and nickel using copper-target X-ray tubes. Dandong Tongda offers both graphite curved crystals and flat crystals. The use of graphite curved crystal monochromators can enhance the peak-to-background ratio, reduce background noise, improve the resolution of weak peaks, achieve a reflection efficiency of n ≥ 35%, and lower the diffraction angle of the diffractometer. The mosaic spread is ≤ 0.55°, and the crystal surface can be tilted by ±2°. These parameters ensure the stable performance of the instrument over long-term use. In X-ray analysis, the quality of data directly impacts the reliability of research conclusions. The graphite curved crystal monochromator significantly improves the quality of the collected signals by enhancing the peak-to-background ratio and reducing background noise. For diffractometer applications, this component also moderately lowers the diffraction angle, making weak peaks more distinct and improving the instrument's ability to resolve trace components. While this improvement may seem minor, it can play a critical role in key experiments. Application Value The graphite curved crystal monochromator demonstrates broad application value in environmental protection and electronics.It is suitable not only for fundamental research but also meets quality control and analytical needs in industrial production.By working in synergy with X-ray diffraction systems, this component provides reliable data support for materials science, chemical research, and industrial testing. ​ When used in conjunction with copper-target X-ray tubes, it effectively addresses analytical challenges for a variety of sample types.

In X-ray diffraction analysis, thin film samples present significant challenges due to their extremely thin thickness, weak signals, and typical attachment to a substrate. Traditional testing methods are prone to interference from substrate signals, causing the signals from the thin film itself to be masked or distorted. The core design of the parallel beam thin film accessory lies in increasing the length of the grating slices to filter out more scattered rays. This approach offers two significant advantages: Reduces Substrate Signal Interference: Effectively suppresses non-target signals originating from the sample substrate. Enhances Thin Film Signal Strength: Makes the analytical signals from the target thin film more prominent, thereby yielding clearer and more accurate analysis results. Application Fields: The parallel beam thin film accessory is primarily applied in cutting-edge fields such as environmental protection and electronics. In these industries, the performance of thin film materials often directly determines the quality of the final product. For example, in the electronics industry, various functional thin films are widely used in products like semiconductor devices, display screens, and solar cells. The crystal structure, orientation, and stress state of the thin films significantly impact their electrical, optical, and mechanical properties. By utilizing the parallel beam thin film attachment, researchers can evaluate these key parameters more precisely, providing robust support for product development and quality control. ​ Dandong Tongda Science and Technology Co., Ltd. is a National High-Tech Enterprise specializing in the production of X-ray analysis instruments and non-destructive testing equipment. It was also the undertaking unit of the "National Major Scientific Instrument and Equipment Development Project" initiated by the Ministry of Science and Technology in 2013. Tongda Science and Technology has completed the serialization of its two main product lines: analytical instruments and non-destructive testing instruments.

The AI fully automated X-ray diffractometer deeply integrates the high-precision manipulation of a robotic arm based on a portable diffractometer. Compared to traditional diffractometers, it significantly reduces manual intervention, making it suitable for R&D scenarios requiring high-throughput and high-repeatability testing. It can be remotely controlled via mobile phone or APP, featuring automatic door opening and closing technology. With autonomous sampling and analysis capabilities, it offers precision and convenience.

Fiber Accessories utilize the X-ray diffraction (transmission) method to analyze the unique crystal structure of fibers. Parameters such as crystallinity and full width at half maximum (FWHM) are used to determine the orientation degree of the sample. ​ Main Functions and Features of Fiber Accessories: Maintaining Fiber Orientation: This is the most critical aspect. Fibers typically exhibit high anisotropy, with crystals preferentially aligned along the fiber axis. Fiber Accessories can straighten and secure fiber bundles, preserving their original orientation to measure orientation degree and distribution. Adapting to Different Sample Forms: Single Fiber: Extremely thin, requiring special clamps or frames for fixation. Fiber Bundle: Multiple fibers arranged in parallel; Fiber Accessories must align and tension them uniformly. Fiber Fabric: Materials like cloth require a flat frame to stretch them taut. Enabling Special Testing Modes: Transmission Mode: Suitable for thin fiber bundles or single fibers. Fiber Accessories include a dedicated frame to tension the fiber, allowing X-rays to penetrate the sample directly. Reflection Mode: Used for thicker fiber bundles or fabrics. Fiber Accessories provide a flat sample surface for this mode. Fiber Sample Holder: This is a simple metal or plastic frame equipped with slots or knobs. During operation, both ends of the fiber bundle are fixed to the holder, and knobs are rotated to tension the fiber, keeping it straight and parallel. The entire holder can be placed in the XRD goniometer for testing, similar to a standard sample. In summary, Fiber Accessories for XRD are specialized sample fixation devices designed for testing fibrous samples with anisotropic structures. Their core function is to maintain and regulate fiber orientation, while advanced versions may support in-situ stretching and other functionalities, providing critical insights into the orientation of crystal structures in fibers.

In the field of materials science research, precise measurement serves as the key to unlocking material properties. The multi-functional integrated measurement accessory developed by Dandong Tongda Science and Technology Co., Ltd. is a high-precision tool designed to enhance X-ray diffraction analysis capabilities. This multi-functional integrated measurement accessory is specifically designed for installation on wide-angle goniometers. Its core mission is to accurately analyze plate materials, bulk materials, and thin films deposited on substrates. The accessory can perform various measurement tasks, including crystal phase detection, orientation degree analysis, and stress testing. It supports texture analysis, residual stress determination, and in-plane structure testing of thin films, providing comprehensive data support for materials research. The core technical features of this accessory are reflected in its multi-axis coordinated precision mechanical system and highly adaptable measurement methods. The multi-functional integrated measurement accessory supports pole figure measurements using either transmission or reflection methods, offering flexibility for different samples and testing requirements. For stress testing, it can employ both the side-inclination method and the normal-inclination method. For thin film samples, the accessory also enables in-plane rotation testing, allowing for in-depth analysis of film structures. Its precision mechanical system ensures high measurement accuracy and repeatability, with minimum step increments of 0.001° (for rotation axes) and 0.001mm (for translation axes). The application scope of the multi-functional integrated measurement accessory is extremely broad, covering almost all advanced manufacturing and R&D fields that require material structure analysis. In the field of metal materials, it is used for evaluating the collective organization of metals such as rolled plates; in ceramics, it focuses on assessing ceramic orientation. For thin film materials, the accessory can analyze the preferred crystal orientation of film samples and test the residual stress of multilayer films (evaluating properties such as film peeling). It can also analyze surface oxidation and nitridation films on high-temperature superconducting material films and metal plates, as well as multilayer films on glass, silicon, and metal substrates. Notably, it can also be applied to the analysis of macromolecular materials, paper, lens plating materials, and more, demonstrating its interdisciplinary application potential. Measurement Accessory

In the fields of materials science and industrial testing, precise sample analysis relies on reliable instruments. The rotating sample stage produced by Dandong Tongda Technology Co., Ltd. is precisely such a critical accessory dedicated to enhancing the quality of X-ray diffraction (XRD) analysis. In X-ray diffraction analysis, the characteristics of the sample itself often pose challenges. For example, when the grains are excessively coarse, the material exhibits significant texture (or "preferred orientation," meaning the grains are not randomly arranged), or the sample has specific crystal habits (crystal growth patterns), obtaining diffraction data that is statistically representative and truly reflects the overall material properties becomes difficult. When measuring such samples with traditional static sample stages, the diffraction intensity may be distorted due to the aforementioned factors, affecting the accuracy of phase identification, texture analysis, and other evaluations. The core design philosophy of Tongda Technology's rotating sample stage is to address these challenges by enabling smooth rotation of the sample within its own plane. Core Function: Eliminating Orientation Errors and Enhancing Data Reliability The working principle of this rotating sample stage is intuitive and effective. By driving the sample to rotate continuously or in a stepwise manner, it ensures that the X-ray beam covers more grains with different orientations on the sample during irradiation. The main advantages of this approach are: Effective Reduction of Measurement Errors: Through the rotation averaging effect, it significantly mitigates measurement deviations caused by coarse grains or preferred orientation, making the diffraction data more representative of the material's overall properties. Ensuring Result Reproducibility: Whether the sample itself has texture or not, it guarantees good reproducibility of diffraction intensity across multiple measurements or between different laboratories, enhancing the reliability and comparability of data. Simplified Sample Preparation Requirements: It reduces the stringent demands for perfect sample preparation to a certain extent, improving analysis efficiency. Technical Specifications: Precision Control and Flexible Adaptability The rotating sample stage from Dandong Tongda Technology offers the following key technical parameters to meet the rigorous demands of scientific research and industrial testing: ParameterDescription Rotation Methodβ-axis (sample rotates within its own plane) Rotation Speed Range1 ~ 60 RPM (revolutions per minute) Adjustable based on experimental requirements Stepping PrecisionMinimum step width: 0.1º Supports high-precision positioning scanning Operation ModesConstant-speed rotation (for sample scanning), stepping, continuous, and other modes Adapts to various testing workflows and data acquisition needs Typical ApplicationsQuality control and R&D in industries such as environmental protection and electronics CompatibilityPrimarily used as an accessory for X-ray diffraction spectrometers (XRD) Application Scenarios: Serving the Environmental Protection and Electronics Industries This rotating sample stage is not merely a "showpiece" in the laboratory; it directly serves industries with high requirements for material analysis, such as environmental protection and electronics. In areas such as quality control, new product development, and failure analysis in these fields, it assists engineers and researchers in conducting more accurate phase analysis on samples of various forms, including powders, bulk materials, and thin films, ensuring the authenticity and reliability of data.

In the field of lithium-ion battery research and development, understanding the dynamic changes in the microstructure of electrode materials during charge and discharge processes is crucial. Traditional offline detection methods cannot capture these changes in real time, while the emergence of in situ characterization techniques provides researchers with a powerful tool. Leveraging its expertise in X-ray diffraction (XRD) technology, Dandong Tongda Technology Co., Ltd. has developed an in situ battery accessory for battery research, offering an efficient window to explore the reaction processes inside the "black box" of batteries. Technical Principle: Dynamically Monitoring Microscale Changes in Battery Materials The core design goal of Dandong Tongda's originally battery accessory​ is to enable real-time monitoring of the evolution of the crystal structure of electrode materials using X-ray diffraction (XRD) technology while the battery is operating normally (during charge and discharge). This accessory typically needs to work in synergy with an electrochemical testing system (such as the LAND battery test system) and an X-ray diffractometer (such as Tongda Tech's TD-3500 model). It forms a specialized battery chamber that allows X-rays to penetrate and probe the electrode materials of the battery during operation. The key lies in the design of window materials (such as beryllium windows) with extremely low X-ray absorption rates on the battery components, ensuring effective incidence and emission of X-rays. Simultaneously, the accessory integrates necessary electrodes, insulation, and sealing components to ensure normal electrochemical reactions and maintain excellent sealing during testing. Key Functions and Application Value The value of this in situ battery accessory lies in its ability to help researchers intuitively and dynamically observe a series of microscopic changes in electrode materials during battery charge and discharge processes: Real-Time Observation of Phase Transition Processes: Many electrode materials undergo phase transitions during lithium-ion intercalation and deintercalation. In situ XRD can capture the formation, disappearance, and transformation of these phases in real time, which is critical for understanding the battery's reaction mechanisms. Monitoring Lattice Parameter Changes: By precisely tracking the shifts in XRD diffraction peaks, subtle changes in lattice parameters can be calculated, reflecting the expansion and contraction of the lattice. This is closely related to battery performance metrics such as voltage platforms and cycle life. Unveiling Capacity Decay Mechanisms: Capacity decay during battery cycling is often related to structural degradation of electrode materials, side reactions, and other factors. In situ monitoring can correlate electrochemical performance degradation with structural changes, providing direct insights for improving battery materials and optimizing design. Accelerating New Material Development: For evaluating novel electrode materials, in situ XRD technology can quickly provide key information on structural stability and reaction pathways, speeding up the R&D process.

As a well-known enterprise in the field of domestic precision instruments, Dandong Tongda Technology Co., Ltd. has launched a series of multi-function sample holder products. With high precision, modular design, and extensive application scenarios, these products have become one of the core equipment in material analysis, X-ray diffraction (XRD), and other fields. Core Functions: Meeting Diverse Analytical Needs Material Structure Analysis: Used for crystalline phase detection, orientation degree (texture) analysis, and residual stress testing, supporting the analysis of materials such as metals, ceramics, and thin films. In-plane rotation (β-axis) eliminates preferred orientation, ensuring the reproducibility of diffraction intensity data. Environmental Simulation Function: Optional high-temperature, low-temperature, or vacuum atmosphere modules (e.g., liquid nitrogen temperature control devices) support variable temperature testing from -196°C to 1000°C, meeting special requirements for high-temperature superconducting materials, metal surface treatment, and more. Automation and Intelligence: Supporting software enables automatic scanning, multi-point measurement, and data linkage analysis, improving detection efficiency. Application Fields: From Scientific Research to Industrial Testing Dandong Tongda sample holder are widely used in the following fields: Materials Science: Texture evaluation of rolled metal sheets, orientation analysis of ceramics, and residual stress testing of thin films. Semiconductor Industry: Analysis of multilayer films on silicon substrates (e.g., magnetic films, hardened coatings). Energy and Environmental Protection: Microstructural research on high-temperature superconducting films, battery materials, and catalysts. Higher Education and Scientific Research: Experimental teaching and research projects in crystallography, quantitative phase analysis, and more. Conclusion: An Indispensable Tool for Material Microanalysis The Dandong Tongda Multi-Function Sample Holder, with its high-precision motion control, modular flexibility, and broad environmental adaptability, has become an indispensable tool for material microanalysis. Its technical advantages are deeply rooted in the company's years of accumulated expertise in X-ray diffraction technology, combining research-grade precision with industrial-grade reliability to help users unlock the secrets of material properties at the microscopic scale. The multi-function sample stage serves as the "hands and feet" of modern precision observation and measurement, precisely presenting samples within the "field of view" of analytical instruments. Its selection directly determines the feasibility, efficiency, and reliability of experiments. Understanding its basic principles, functional classifications, and technical specifications is key to selecting and effectively utilizing this equipment.

Non-Destructive Testing (NDT) is an indispensable quality assurance technology in modern industry. It enables the detection of internal defects, structures, and property conditions of materials by utilizing characteristics such as acoustic, optical, magnetic, and electrical properties—all without damaging or affecting the performance of the tested object. Compared to destructive testing, NDT has the following characteristics: First, it is non-destructive, as it does not impair the performance of the test object. Second, it is comprehensive. Since the testing is non-destructive, it allows for 100% full inspection of the test object when necessary, which is impossible with destructive testing. Third, it is full-process applicable. Destructive testing is generally only suitable for raw materials, such as tensile, compression, and bending tests commonly used in mechanical engineering. Destructive testing is conducted only on raw materials for manufacturing. For finished products and in-service equipment, destructive testing cannot be performed unless they are no longer intended for use. In contrast, NDT does not damage the test object’s performance, making it suitable for full-process testing, from raw materials and intermediate manufacturing stages to final products, as well as for in-service equipment. Among the many manufacturers of non-destructive testing equipment, Dandong Tongda Technology Co., Ltd. has developed a variety of NDT instruments that approach or achieve internationally advanced levels, thanks to its solid technical expertise and innovative capabilities. Technical Features: Portability, Safety, and Intelligence Tongda Technology's NDT Portable X-ray Welding Testing Machine exhibit several outstanding features. Their X-ray generators adopt an anode grounding and fan-forced cooling design, making them compact, lightweight, portable, and easy to operate. In terms of safety performance, the equipment is equipped with a delayed exposure function, effectively ensuring operator safety. The devices operate on a 1:1 work-rest cycle, with a rational duty cycle design that ensures detection efficiency while extending the equipment’s service life. The company’s products incorporate Programmable Logic Controller (PLC) technology and a modular design concept, enhancing automation, improving anti-interference capabilities, and ensuring an extremely low failure rate. Application Areas: Wide Adoption Across Multiple Industries Tongda Technology's NDT Portable X-ray Welding Testing Machine are suitable for various industrial sectors, including national defense, shipbuilding, petroleum, chemicals, machinery, aerospace, and construction. These instruments are used to inspect the welding quality of materials and components such as ship hulls, pipelines, high-pressure vessels, boilers, aircraft, vehicles, and bridges, as well as the internal quality of various lightweight metals, rubber, ceramics, and other materials.