Non-Destructive Testing (NDT)

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Non-Destructive Testing (NDT):

Flaws affecting the serviceability of the material or structure, so NDT are important in guaranteeing safe operation as well as in quality control and assessing plant life. The flaws may be cracks or inclusions in welds and castings or variations in structure properties that can lead to loss of strength or failure in service. BCI provides highly skilled, experienced and motivated personal qualified and certified in accordance with international certification schemes.

Nondestructive weld assessment methods

We perform these services using a variety of nondestructive testing (NDT) methods. Our technicians are certified by both CSWIP/ASNT to conduct examinations of client structures, equipment, and machineries

1 Liquid Penetrant Testing (PT)
2 Magnetic Particle Testing (MT)
3 Visual Testing (VT)
4 Ultrasonic Testing (UT)
5 Radiographic Testing (RT)
6 Thermal/Infrared Testing (IRT)
7 Phased Array Ultrasonic Testing (PAUT)
8 Time of Flight Diffraction (ToFD)
1 Liquid Penetrant Testing (PT)

One of the most popular inspection methods by BCI provides is liquid penetrant testing. Many of our customers request this method because it is highly sensitivity to small surface flaws and discontinuities. It also can be used on a wide variety of shapes and materials ranging from metals, plastics, and rubbers. PT is a cost-effective approach to rapidly inspect large objects or a high quantity of items.

Our certified staff of NDT professionals provide quality inspection services for a broad range of industries throughout India and abroad. Liquid Penetrant Testing services are offered in our laboratories, field locations and/or customer premises.

2 Magnetic Particle Testing (MT)

BCI offers nondestructive Mag Particle Inspection for analyzing surface and near-surface discontinuities. Our professional techs are able to detect flaws in ferromagnetic materials by generating a magnetic field directly and/or indirectly into a configured component. Multiple methods are used for inspection such as dry particle and wet suspension while applying continuous and residual magnetization. BCI employs this method as one of the most cost cutting solutions with a short turn-around time.

Our qualified personnel of NDT professionals offer exceptional mag particle inspection services to a broad spectrum of industries domestically and globally. We perform Magnetic Particle Inspections in our laboratories, in the field and/or on client locations with customer service and cost reductions as major priorities and primary goal.

3 Visual Testing (VT)

BCI’s certified NDT professionals offer quality inspection services to numerous industries domestically and internationally. Our inspectors are decidedly skilled and are exhaustively trained in advanced procedures to determine and analyze visible surface imperfections. Additionally, we are adept at applying computer-controlled imaging systems for measuring and inspecting of components.

Visual inspection provides a broad spectrum of opportunities to assess equipment condition, proper application, or product quality employing effective procedures for detection of discontinuities or surface flaws. Our calculated results are produced using advanced tools such as displacement, templates and depth gauges. Visual inspection services are offered in our laboratories, in the field and/or on client premises with customer service as the priority and cost savings as a primary goal.

4 Ultrasonic Testing (UT)

BCI’s certified NDT professionals offer quality inspection services to numerous industries domestically and internationally. Our inspectors are decidedly skilled and are exhaustively trained in advanced procedures to determine and analyze visible surface imperfections. Additionally, we are adept at applying computer-controlled imaging systems for measuring and inspecting of components.

Visual inspection provides a broad spectrum of opportunities to assess equipment condition, proper application, or product quality employing effective procedures for detection of discontinuities or surface flaws. Our calculated results are produced using advanced tools such as displacement, templates and depth gauges. Visual inspection services are offered in our laboratories, in the field and/or on client premises with customer service as the priority and cost savings as a primary goal.

5 Radiographic Testing (RT)

One of the greatest advantages to radiography testing is it can be used on almost any material and can reveal discontinuities that are located on or below the surface. We can provide permanent inspection records by using film or digital imaging.

BCI provides traditional radiography and computed digital radiography. Many industries call on us to test concrete, welds, pipeline, pressure vessels and castings. Our technicians are certified to          SNT-TC-1A/PCN/ISO. Our certified staff of NDT professionals provides quality inspection services to a broad range of industry sectors, our services are offered in our laboratories, field locations and/or customer premises.

6 Thermal/Infrared Testing (IRT)

Infrared thermography as a tool for condition monitoring, it's recommended you establish severity criteria. Severity criteria can be presented in two forms: general categories identifying temperature levels or specific categories of machines or components. Severity criteria develop over time with an accumulation of data. It's best practice to develop severity criteria specific to each category of equipment based on the equipment's design, operation, installation, maintenance characteristics, criticality and failure modes.

7 Phased Array Ultrasonic Testing (PAUT)

Phased array provides immediate results regarding the material or components being inspected. Advanced software incorporates full matrix capture (FMC) and total focusing method (TFM) techniques for data acquisition from as many as 64 channels. Powerful algorithms process acquired data to create detailed color images that give the technician detailed information on the location, size, and characteristics of flaws or defects. Phased array can also be combined with the time-of-flight diffraction (TOFD) method to further improve the accuracy of crack measurements.

Because phased array inspections are entirely digital, inspection results are instantaneous, providing immediate feedback to enable faster inspections, confirmation of weld quality or detailed identification of defects. PAUT instruments can easily generate detailed standardized inspection reports that can be printed or saved as digital records to meet compliance requirements. Additional advantages of phased array inspections techniques include:

  • High probability of detection (POD) for planar flaws such as fatigue and stress corrosion cracks.
  • Ability to assess through-wall depth attributes to accurately determine the location defects.
  • Calculation of defect height measurements as an indicator of flaw severity.
  • Ability to discriminate among defects stacked throughout the material thickness in a proximate circumferential location.

With the small form factor of phased array devices, inspections can be automated with the aid of a crawler for circumferential or axial weld scanning, as well as custom-engineered mechanical systems for high-volume inspections in manufacturing applications. Phased array provides accurate detection of both surface and subsurface flaws, and is ideal for weld inspections, wall thickness measurements, and corrosion detection.

8 Time of Flight Diffraction (ToFD)

TOFD can find defects regardless of their orientation, which makes it an ideal complementary technology to PAUT. However, like PAUT, TOFD has certain imaging weaknesses. If only a single scan is made, technicians may encounter a lateral wave dead zone, off-axis errors, timing errors, and resolution errors. In order to gain a complete image of defects, it’s necessary for technicians to use phased array techniques to vary beam width, angle, and point of entry. When TOFD imaging is used with phased array technology, technicians will be certain they have identified any weaknesses in the object being scanned.

In order to achieve rapid, accurate scans of welds, pipes, and other critical metallic components, NDT technicians should use a combination of PAUT and TOFD scanning technologies. Modern, cutting edge ultrasonic test software, housed in portable equipment, is capable of compiling composite images from these dual technologies, to provide the most detailed picture of object interiors possible. Adopting a combined scanning regimen significantly lowers the risk of missing defects and resulting equipment failures.

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