大検 List of Products and Services

Our company offers a "Helium Leak Testing Service" capable of detecting minute leaks from invisible damage. We provide testing methods such as the "Vacuum Hood Method," which quantifies the total leakage of the test specimen, and the "Sniffer Method," which can identify leak locations. For specialized products, we also conduct proof tests using the mop-up method to verify the effectiveness of the inspection methods. 【Achievements (Partial)】 ■ Plant Piping (Pressurized Integral Method) Confirming no leaks from flanges and welds ■ Air Conditioning Equipment (Sniffer Method) Detecting leaks from corrosion points due to aging ■ Vacuum Equipment (Vacuum Hood Method) Confirming no leaks from pressure vessels or vacuum tanks *Please also refer to the materials. Feel free to contact us.

• others

Our company actively utilizes phased array ultrasonic testing for the quantitative evaluation of damage and corrosion in steel materials. The testing conducted with this equipment does not require any surface preparation, such as the removal of coatings or rust, and after data acquisition, evaluation can be done off-site. It offers superior workability compared to conventional ultrasonic devices. 【Features】 ■ Quantitative evaluation of steel material thinning ■ No surface preparation required, such as removal of coatings or rust ■ Linear scanning allows for inspection of a wide area at once without physically moving the probe, resulting in reduced inspection time ■ Clear reporting through images is possible *For more details, please refer to the PDF document or feel free to contact us.

• Measurement and Inspection
• Analysis and prediction system

This is an introduction to inspections using radiation. It may be easier to understand if you imagine X-rays used in health check-ups. We can provide clear information in the form of film or data, and we have many certified technicians according to JIS Z2305. If you want to check the interior, please consider RT inspections based on standard shooting. 【Target】 ■ Vehicles ■ Construction-related ■ Public works, etc. ■ Aviation and shipping-related ■ Building renovations ■ Companies involved in manufacturing *For more details, please contact us or refer to the PDF.

• Measurement and Inspection

The airtightness test "Helium Leak Test" is one of the non-destructive inspections that is considered important not only in Japan but also in various countries around the world, including Europe and the United States. There are various testing methods depending on the purpose, such as quantifying the amount of leakage by pressurizing the product with vacuum or helium gas, and identifying leak points from invisible cracks. Ultimately, this also helps prevent leakage accidents. In this article, we will introduce the challenges faced by our customers and the solutions. ■Challenges Due to phenomena such as the building's air conditioning (absorption chiller) not heating or cooling properly, urgent action is required from the supplying manufacturer. ■Solutions We conducted a leak test after vacuuming the piping using the airtightness test "Helium Leak Test" to identify the leak points. The manufacturer repaired the identified areas, and we conducted a re-inspection of the repaired areas to confirm that there were no leaks. *For more details, please contact us or refer to the PDF.

• Non-destructive testing

Our company uses IP (Imaging Plate) media as a substitute for traditional film and actively utilizes methods employing DRT to inspect the internal structures and conditions of concrete structures, piping, cast steel products, and more. We can now provide imaging data in place of film. One of the features of this device (FUJIFILM Dynamix HR2) is that it allows inspection of objects with significant thickness differences in a single shot, thereby reducing inspection time. **Features of inspections using this device (FUJIFILM Dynamix HR2):** - Analysis and measurement using dedicated software - Density correction is possible - Can inspect objects with significant thickness differences in a short time - Clear reporting through images *For more details, please refer to the PDF materials or feel free to contact us.*

• Other analytical equipment
• Non-destructive testing
• others

Our company uses IP (Imaging Plate) media as a substitute for traditional film, actively utilizing methods that employ DRT to assess the internal structures and conditions of concrete structures, piping, cast steel products, and more. We can now provide imaging data as an alternative to film. One of the features of this device (FUJIFILM Dynamix HR2) is that it can inspect objects with significant thickness differences in a single shot, thereby reducing inspection time. **Features of inspections using this device (FUJIFILM Dynamix HR2):** - Analysis and measurement using dedicated software - Density correction is possible - Can inspect objects with significant thickness differences in a short time - Clear reporting through images *For more details, please refer to the PDF materials or feel free to contact us.*

• Other analytical equipment
• Non-destructive testing
• others

The "DYNAMIX HR2" is an IP image reading device that achieves overwhelming high image quality with a high signal-to-noise ratio (SNR), spatial resolution, and density resolution. This product realizes high inspection accuracy with an automatic density correction function that provides optimal image quality for each target object, and a wide dynamic range technology that inherits the trusted FCR technology. 【New Features】 ■ "Manual Insertion IP System" that allows direct insertion of IP ■ "Special Cut IP System" that can be shaped appropriately for the inspection target ■ Easy thickness inspection with the automatic measurement tool "Dynamix VU Thickness" ■ Automatic adjustment of density and contrast to ASTM standard images with the "Contrast Normalization Function" ■ Compatible with long IPs for efficient imaging of pipe welds *For more details, please refer to the PDF materials or feel free to contact us.

• others

Magnetic particle testing is an extremely precise surface inspection method that can detect fine surface cracks that are not visible to the naked eye. Phased array ultrasonic testing does not require any surface preparation such as the removal of coatings or rust, and it allows for data collection and evaluation to be done off-site. It also offers superior workability compared to conventional ultrasonic equipment. 【Customer's Issue】 Significant damage was found on a steel bridge, and a non-destructive test that is not easily detectable by visual inspection was urgently needed. 【Solution】 We visited on the same day we were contacted and conducted inspections using magnetic particle testing and ultrasonic testing until the repair of the damage was completed. *For more details, please contact us or download the PDF to view.

• Non-destructive testing

Helium leak testing is one of the non-destructive testing methods that is considered important not only in Japan but also in various countries around the world, including Europe and the United States. It is widely conducted in various fields such as chemical plants, nuclear power, and space development, and engineers need to have sufficient knowledge and experience regarding vacuum and leakage characteristics. There are various testing methods tailored to specific purposes, such as quantifying the amount of leakage by pressurizing the inside of a product with vacuum or helium gas, and identifying leakage points from invisible cracks. 【Customer's Issue】 There has been a phenomenon where the building's air conditioning (absorption chiller) does not heat or cool properly, necessitating urgent action from the supplying manufacturer. 【Solution】 Conduct a helium leak test to perform a leak inspection after vacuuming the piping system and identify the leakage points. The manufacturer will repair the identified areas, and a re-inspection will be conducted to confirm that there are no leaks. *For more details, please contact us or refer to the PDF.

• Non-destructive testing

"Radiographic Testing of Valves using Gamma Rays" is a non-destructive testing method used for complex cast steel products and for investigating the corrosion levels inside boiler tubes. We conduct internal defect detection in materials and structures! We have established an ASME room that complies with ASME standards, and we have certified personnel with SNT certification and ACCP certification from the association. We also provide consulting services in the non-destructive testing sector for ASME. 【Customer's Challenge】 Due to congestion in the subsequent processes, urgent decisions are required, and we want to quickly check the inside of the castings! 【Solution】 By utilizing radiographic testing, we can conduct imaging on the same day the products are brought in. 【Benefits】 ◆ Full imaging is possible in the irradiation room. ◆ We have technicians available nationwide. ◆ Results can also be reported on the same day (subject to consultation). *For more details, please contact us or download the PDF to view.

• Surveying
• Non-destructive testing

Phased array inspection utilizes ultrasonic testing methods, allowing for surface preparation such as the removal of coatings and rust to be unnecessary, and enabling data to be evaluated after being taken back. It also offers superior workability compared to conventional ultrasonic devices. (Using Olympus model [Olympus Omniscan-MX2]) 【Customer's Challenge】 The surface rust on the water pipes is severe, and there is a desire to quantitatively investigate internal wall thinning, but the results of conventional ultrasonic measurements yield only point measurements. 【Solution】 By proposing the use of phased array technology, it becomes possible to provide clear reports on the area of wall thinning investigation, even without specialized knowledge, through visualized images! 【Features of Phased Array Inspection】 ◆ Reduction of inspection time ◆ No preparation required for coating or rust removal ◆ Clear reporting through images ◆ Quantitative evaluation of wall thinning in steel materials *For more details, please contact us or download the PDF to view.

• Surveying
• Non-destructive testing

"Valve inspection and radiation transmission testing using gamma rays" is a "non-destructive testing" method used for investigating the corrosion levels inside boiler tubes and for complex shapes of cast steel products. As part of our initiatives, we have established an ASME department that complies with ASME standards and also provides consulting services in the non-destructive testing sector. We can accommodate inspections and results in as little as one day! *Consultation required. [Features] ■ We can accommodate short delivery times as much as possible. ■ We conduct internal defect detection in materials and structures. ■ Certified personnel with SNT certification and ACCP certification from the association are available. ■ We have established an ASME department that complies with ASME standards. *We also conduct various other non-destructive tests! X-ray transmission testing / Maintenance inspection of power cables / X-ray exploration of concrete Ultrasonic flaw detection testing and thickness measurement testing / Penetrant testing / Ultrasonic flaw detection testing of welded joints in construction steel frames / Ultrasonic flaw detection testing of rebar gas pressure joints Helium leak testing / Phased array inspection *For more details, please refer to our catalog or feel free to contact us.

• Surveying
• Non-destructive testing

Our company provides non-destructive testing technology services in the manufacturing stage, playing a role in ensuring safety and reliability. Phased array inspection utilizes ultrasonic testing methods, eliminating the need for surface preparation such as paint or rust removal, and allows for evaluation after data collection! It also excels in workability compared to conventional ultrasonic devices! (*Using Olympus model [Olympus Omniscan-MX2]) 【Features】 ◆ Reduction of inspection time 　⇒ Linear scanning allows inspection of a wide area at once without physically moving the probe. ◆ No surface preparation needed for paint or rust removal 　⇒ As it is ultrasonic testing, inspections can be conducted without altering the existing items. ◆ Clear reporting with images 　⇒ Equipped with a high-resolution large 10.4-inch touch screen, it also features high-speed data transfer capabilities. ◆ Quantitative evaluation of material thinning in steel 　⇒ It can map the distribution of material loss in pipes due to corrosion, wear, and erosion. 【Case Studies】 For more details, please contact us or download our catalog for further information.

• Surveying
• Non-destructive testing

"Valve inspection and radiation transmission testing using gamma rays" is a non-destructive testing method used for complex cast steel products and for investigating the corrosion levels inside boiler tubes. It involves detecting internal defects in materials and structures! We have established an ASME (American Society of Mechanical Engineers) room and comply with ASME standards. Certified professionals with SNT certification and ACCP certification from the association are available. We also provide consulting services in the non-destructive testing sector for ASME. *We are currently offering materials with examples of inspection photos! For more details, please download and view from the form below. 【Benefits】 ◆ Full-scale photography is possible in the irradiation room. ◆ Nationwide service is available. ♦ We have engineers on staff, allowing for quick turnaround times. For more information, please contact us or download our catalog for further details.

• Surveying
• Non-destructive testing

"Bridge and Structure Inspection" involves data collection and on-site surveys for the deterioration diagnosis of existing civil engineering structures. For individual inspections of concrete bridges and structures, we conduct visual inspections, ultrasonic measurements of crack depths in concrete, and radar wave investigations of rebar placement. For individual inspections of steel bridges and structures, we perform weld crack inspections (magnetic particle testing, eddy current testing). 【Features】 ■ Deterioration Diagnosis ■ On-site Surveys ■ Bridge and Structure Inspection - Concrete Bridges - Steel Bridges *For more details, please refer to the catalog or feel free to contact us.

• Surveying

"Concrete X-ray inspection" is a method to confirm embedded objects such as rebar, electrical wires, and gas pipes within concrete using X-ray images. In renovation work for buildings that are over ten years old and in seismic reinforcement work for structures, it is common to drill holes in the concrete. This method can prevent damage to embedded objects like electrical wires and gas pipes within the concrete. Just like taking an X-ray of the chest, X-ray images of concrete floors and walls are taken to check the condition inside the concrete using film. [Features] - X-ray inspection - Prevention of damage to embedded objects - Visibility of the interior of concrete - Confirmation possible with X-ray images *For more details, please refer to the catalog or feel free to contact us.

• Structural Survey
• Non-destructive testing

"Valve inspection and radiation transmission testing using gamma rays" is a non-destructive testing method used for complex cast steel products and for investigating the corrosion levels inside boiler tubes. As part of our initiatives, we have established an ASME department that complies with ASME standards. We have certified personnel with SNT certification and ACCP certification from the association. We also provide consulting services for the non-destructive testing department in accordance with ASME. 【Features】 ■ Conducts internal defect detection of materials and structures ■ Certified personnel with SNT certification and ACCP certification from the association ■ Established an ASME department ■ Complies with ASME standards ■ Capable of accommodating short delivery times whenever possible *For more details, please refer to our catalog or feel free to contact us.

• Surveying
• Non-destructive testing

▼Magnetic Particle Testing It is a highly accurate surface inspection method that can detect fine surface cracks that are not visible to the naked eye. Our company utilizes this flaw detection technology in manufacturing inspections and maintenance inspections. *For more details, please contact us or refer to the catalog.*

• Non-destructive testing

▼Bridge Inspection - Weld Crack Investigation Using a high-altitude work vehicle, we access the bridge girder to conduct non-destructive testing, ensuring that no small deterioration of the bridge is overlooked. ▼Bridge Inspection Using Magnetic Particle Testing For areas where cracks are observed in the coating through visual inspection, we investigate the condition of the cracks using magnetic particle testing. ▼Visualization of Cracks Using magnetic force, we can visualize surface cracks and reliably detect any damage. ▼Inspection Results We meticulously record the condition of the cracks detected during the bridge inspection and report on the state of the bridge. *For more details, please contact us or refer to the catalog.*

• Bridge Construction

Ultrasonic Thickness Measurement Ultrasonic thickness measurement is a method of measuring the thickness of an object from one side using ultrasonic waves. It is typically measured with a specialized device called an ultrasonic thickness gauge. Ultrasonic waves are sent from the measurement surface of the object, and the time taken for the reflection from the back surface to return is measured and converted into thickness. A sensor called a transducer (probe) is used to transmit and receive the ultrasonic waves. ◎ Implementation of Ultrasonic Thickness Measurement Ultrasonic thickness measurement is conducted in accordance with the standard "Thickness Measurement Method Using Ultrasonic Pulse Reflection" (JIS Z 2355). Additionally, the standard states that "the person conducting the measurement must have the necessary qualifications or equivalent sufficient knowledge, skills, and experience." The "necessary qualifications" referred to here typically means a qualified ultrasonic inspector certified by the Japan Non-Destructive Testing Association. *For more details, please contact us or refer to the catalog.

• Non-destructive testing

<X-ray Transmission Testing> With high defect detection accuracy and the advantage of being able to retain X-ray film, this method has become the most widely used testing method to date. Using a portable X-ray device combined with film and sensitizing paper, imaging can be done for steel up to 80mm thick and for concrete up to 400mm thick. <Concrete X-ray Exploration> There has been an increase in renovation work on buildings that have been standing for over a decade, and during these renovations, it is common to drill holes in the concrete using core drills. Inside the concrete, there are embedded objects such as rebar, electrical wires, and gas pipes. By pre-exploring the interior of the concrete with X-rays, it is possible to prevent damage to these embedded objects. The X-ray exploration method involves taking X-ray images of concrete floors and walls, similar to how we take chest X-rays, allowing us to check the condition inside the concrete using film. <γ-ray Transmission Testing> Gamma rays are used for investigating the corrosion levels inside complexly shaped cast steel products and boiler tubes. Our company has extensive experience in handling various notifications to government agencies and conducting on-site inspections using dedicated irradiation rooms. *For more details, please contact us or refer to the catalog.*

• Non-destructive testing

We will investigate the deterioration of concrete structures (such as bridges and buildings), which are social capital, and create data for repair plans. When implementing seismic reinforcement work on structures like bridge piers, we will conduct preliminary rebar surveys and facilitate the smooth progress of the construction. 【Individual Surveys】 - Measurement of crack depth using ultrasound (bridge piers) - Data on crack depth using ultrasound - Investigation of internal defects in concrete using X-ray imaging (deck slabs of elevated bridges) - Measurement of concrete thickness using ultrasound - Investigation of internal defects in concrete using ultrasound - Measurement of sound velocity in concrete using ultrasound, etc. *For details, please contact us or refer to the catalog.

• Non-destructive testing

Leak testing is one of the key non-destructive testing methods that is considered important not only in Japan but also in various countries around the world, including Europe and the United States. As a result, it is widely implemented in various fields such as chemical plants, nuclear power, and space development. Consequently, engineers need to have sufficient knowledge and experience regarding the characteristics of vacuum and leakage. Helium leak testing includes various methods tailored to specific purposes, such as quantifying the amount of leakage by pressurizing the product with vacuum or helium gas, and identifying leak points from invisible cracks. To meet the diverse needs of a wide range of customers, we are committed to ongoing engineer training. Additionally, for specialized products, we also conduct mock-up tests to validate the effectiveness of the testing methods. *For more details, please contact us or refer to the catalog.*

• Non-destructive testing

Through our non-destructive testing services, we aim to contribute to the development of society by providing non-destructive testing technology services at the manufacturing stage of structures such as industrial equipment, power facilities, gas facilities, pressure vessels, pipelines, bridges, buildings, and civil engineering. We also offer non-destructive testing consulting services not only domestically but also for the United States and Europe. When exporting industrial products to the United States and Europe, it may be necessary to have qualifications in non-destructive testing technology from those regions. Our company employs an ASNT Level 3 professional who conducts consulting services.

• Non-destructive testing