中日非破壊検査 List of Products and Services

"Reinforcement Inspection of Concrete Structures" allows for the confirmation of the reinforcement condition and cover thickness of existing concrete structures before any modifications are made, in order to prevent accidents such as rebar cutting or damage to embedded objects. There are two types of inspection methods: electromagnetic wave radar method and electromagnetic induction method, which are selected based on the cover thickness and the target objects. [Features] ■ It is possible to confirm the reinforcement condition and cover thickness of concrete structures before construction. ■ There are two types of inspection methods: electromagnetic wave radar method and electromagnetic induction method. *For more details, please refer to the PDF document or feel free to contact us.

• Non-destructive testing
• Structural Survey

The "Reinforcement Joint Inspection" involves conducting visual inspections and ultrasonic testing (or measurement) as part of quality control for reinforcement joints. The ultrasonic testing method varies depending on the joining method. In the case of pressure welding or welding, ultrasonic waves are directed into the rebar, and defects in the joint area are detected through reflected waves from those defects. For mechanical joints, ultrasonic measurements are used to verify whether the rebar is inserted to the correct length in the coupler or sleeve. Additionally, after the swelling of the pressure-welded joint is removed, we conduct "Hot Extrusion Inspection" to check for cracks, dents, surface irregularities, and to measure the swelling length using calipers or scales. [Features] ■ The ultrasonic testing method varies by joining method. ■ "Hot Extrusion Inspection" is also conducted. *For more details, please refer to the PDF materials or feel free to contact us.

• Non-destructive testing
• Structural Survey

"Phased Array Ultrasonic Testing" is one of the inspection technology systems that applies ultrasonic testing. The phased array probe is composed of multiple transducers, which are electronically controlled to generate ultrasonic beams. It is capable of operating beams at various angles, focal distances, and focal sizes simultaneously, and the device is equipped with advanced software that displays the reflections of the ultrasonic beams as 2D cross-sectional images, offering superior flaw detection capabilities and sizing accuracy compared to conventional ultrasonic testing methods. [Features] - Application of ultrasonic testing - Capability to operate beams at various angles, focal distances, and focal sizes simultaneously - Advanced software built into the device - Reflection of ultrasonic beams displayed as 2D cross-sectional images *For more details, please refer to the PDF document or feel free to contact us.

• Non-destructive testing
• Structural Survey

"Magnetic particle testing" can only be applied to ferromagnetic materials that are attracted to magnets. When using the equipment to magnetize a ferromagnetic material (test specimen), a flow of magnetism called magnetic flux is generated within it. If there are cracks or other defects on the surface or near-surface of the test specimen, the magnetic flux will leak into the surface space due to the defects, forming small magnets. When very fine iron powder (magnetic powder) that is colored is sprinkled onto that area, the magnetic powder adheres to the defect, and the adhered magnetic powder becomes a magnet, allowing the magnetic powders to stack and form patterns, which is used to detect the defects. 【Features】 ■ Can only be applied to ferromagnetic materials that are attracted to magnets ■ Utilizes the adhesion of magnetic powder to defect areas, where the adhered magnetic powder becomes magnets, allowing the powders to stack and form patterns to detect defects ■ The aggregation of magnetic powder creates patterns that are enlarged compared to the actual defects ■ Allows for the detection of narrow, invisible defects *For more details, please refer to the PDF document or feel free to contact us.

• Non-destructive testing
• Structural Survey

"Penetrant testing" is a method for detecting cracks and other openings on the surface of test specimens through the capillary action of liquids. The penetrant is allowed to seep into the surface of the test specimen, and after removing the excess penetrant, a developer draws the penetrant that has seeped into the cracks back to the surface, allowing for the detection of the flaws. Since a magnified pattern of the actual flaw dimensions is formed, even narrow or small-diameter flaws that are normally invisible to the naked eye can be confirmed visually. 【Features】 ■ Detects cracks and other openings on the surface of the test specimen ■ The developer draws the penetrant that has seeped into the cracks back to the surface, allowing for flaw detection ■ A magnified pattern of the actual flaw dimensions is formed ■ Even narrow or small-diameter flaws that are normally invisible can be confirmed visually *For more details, please refer to the PDF document or feel free to contact us.

• Non-destructive testing
• Structural Survey

"Ultrasonic flaw detection" involves placing a sensor called a probe against the surface of materials such as metal and transmitting ultrasonic waves. Ultrasonic waves are reflected at the boundary between different materials, such as metal and air. By utilizing this property, the position and size of flaws within the test specimen can be measured through the reflected echoes from these flaws. There are two main methods of flaw detection: the angled flaw detection method, which involves transmitting ultrasonic waves at an angle from the test surface and is used for detecting welds, and the vertical flaw detection method, which involves transmitting waves perpendicularly from the test surface and is used for detecting flaws in shafts and plates. [Features] - Measures the position and size of flaws from the reflected echoes within the test specimen. - The flaw detection methods are broadly classified into two types. - Can also measure the thickness of materials that cannot be measured with calipers. *For more details, please refer to the PDF document or feel free to contact us.*

• Non-destructive testing
• Structural Survey

"Radiographic Testing" is an inspection method that utilizes radiation known as X-rays or gamma rays, primarily aimed at detecting internal defects in welded joints and base materials. The inspection uses X-ray film, and by creating a density difference in the radiographic image between areas with and without defects, it is possible to determine the presence, size, and type of defects. Additionally, it is also used for internal investigations to confirm the positions of rebar and wiring in concrete structures. 【Features】 ■ Utilizes radiation known as X-rays or gamma rays ■ Detection of internal defects in welded joints and base materials ■ Uses X-ray film ■ Capable of determining the presence, size, and type of defects ■ Also used for internal investigations *For more details, please refer to the PDF document or feel free to contact us.

• Non-destructive testing
• Structural Survey

At Chūnichi Non-Destructive Testing Co., Ltd., we conduct "non-destructive testing" for inspections of welds in pipes and pressure vessels. We mainly offer "Radiographic Testing (RT)", "Ultrasonic Testing and Thickness Measurement (UT, UTT)", and "Penetrant Testing (PT)", among various other inspection targets. Our team of nine certified X-ray technicians provides friendly, careful, and reliable service, so please feel free to contact us. 【Examples of Inspection Targets】 ■ Welds in pipes and pressure vessels ■ Cast and forged products ■ Welds in various metals, etc. *For more details, please refer to our catalog or feel free to contact us.

• Non-destructive testing