Service – NDT & Heat Treatment

Overview

EPCM’s non-destructive testing and heat treatment team has over 35 years of experiene. Predominantly in the Oil & Gas, Petrochemical, Mining and Railroad Industries.

We help you ensure the reliability and safety of your products, equipment or plant assets with our world-class services in non-destructive testing (NDT) and Heating. Non-destructive testing ensures the safe and efficient operation of your equipment and assets by detecting defects before they result in severe damage and assures compliance with international standards.

NDT is useful for determining the safety and reliability of products that are currently in-use as well as those intended for future use. Various methods can detect internal and external irregularities and imperfections, determine the structure or composition of materials, and make accurate measurements of the products being tested – without destroying them.

Service Brochure

Typical Activities

Infrared Thermography

Infrared thermography (IRT), thermal imaging, and thermal video are examples of infrared imaging science. Thermographic cameras usually detect radiation in the long-infrared range of the electromagnetic spectrum and produce images of that radiation, called thermograms. IRT shows a visual picture so temperatures over a large area can be compared. It is capable of catching moving targets in real time, Thermal Imaging is able to find deterioration, i.e., higher temperature components prior to their failure. It can be used to measure or observe in areas inaccessible or hazardous for other methods. It is a non-destructive test method and can be used to find defects in shafts, pipes, and other metal or plastic parts. IRT can be used to detect objects in dark areas.

Ground Penetrating Radar

Ground-penetrating radar (GPR) is a geophysical method that uses radar pulses to image the subsurface. This non-destructive method uses electromagnetic radiation in the microwave band (UHF/VHF frequencies) of the radio spectrum, and detects the reflected signals from subsurface structures. GPR can have applications in a variety of media, including rock, soil, ice, fresh water, pavements and structures. In the right conditions, practitioners can use GPR to detect subsurface objects, changes in material properties, and voids and cracks. GPR uses high-frequency (usually polarized) radio waves, usually in the range 10 MHz to 2.6 GHz. A GPR transmitter and antenna emits electromagnetic energy into the ground. When the energy encounters a buried object or a boundary between materials having different permittivities, it may be reflected or refracted or scattered back to the surface. A receiving antenna can then record the variations in the return signal.

Heat Treatment

Heat Treatment is the controlled heating and cooling of metals to alter their physical and mechanical properties without changing the product shape. Heat treatment is sometimes done inadvertently due to manufacturing processes that either heat or cool the metal such as welding or forming.

EIS Offers the following Heat Treating methods:

  • Post Weld Heat Treatment,
  • Pre-Heat,
  • Normalizing and Quenching ro name a few.

EIS uses only state of the art equipment such as Stork 50 Kva machines, 2 x diesel fired furnaces and/or gas fired burners to meet the requirements of our clients.

We pride ourselves in employing only trained professionals with minimum of 3 years experience to ensure the highest quality and complete satisfaction for our clients.

We also provide Heat Treatment Training to the youth as a community development program for those interested in learning the profession.

Ultra Sonic Inspection

Ultrasonic non-destructive testing, also known as ultrasonic NDT or simply UT.

It’s a method of characterizing the thickness or internal structure of a test piece through the use of high frequency sound waves. Ultrasonic Inspection is a very useful and versatile NDT method. Some of the advantages of ultrasonic inspection that are often cited, include:

  • It is sensitive to both surface and subsurface discontinuities.
  • The depth of penetration for flaw detection or measurement is superior to other NDT methods.
  • Only single-sided access is needed when the pulse-echo technique is used.
  • It is highly accurate in determining reflector position and estimating size and shape.
  • Minimal part preparation is required.t
  • Electronic equipment provides instantaneous results.
  • Detailed images can be produced with automated systems.
  • It has other uses, such as thickness measurement, in addition to flaw detection.
  • As with all NDT methods, ultrasonic inspection also has its limitations, which include:
  • Surface must be accessible to transmit ultrasound.
  • Materials that are rough, irregular in shape, very small, exceptionally thin or not homogeneous are difficult to inspect.
  • Cast iron and other coarse grained materials are difficult to inspect.

Radiographic Inspection

Industrial radiography is a method of non-destructive testing where many types of manufactured components can be examined to verify the internal structure and integrity of the specimen. Industrial Radiography can be performed Utilizing either X-rays or gamma rays. Both are forms of electromagnetic radiation.

Guided Ultrasonic

The system uses flow frequency guided ultrasonic waves to inspect tens of metres of pipe from a single remote location. The ability of this system to send waves along the length of the pipe, means that, very difficult to inspect areas, such as crossings, can be interrogated from a remote & easily accessible location can usually be performed while the pipe is in service.

Magnetic Flux Leakage Inspection System

Magnetic flux leakage is a magnetic method of non-destructive testing that is used to detect corrosion and pitting in steel structures, most commonly pipelines and storage tanks. the basic principle is that a powerful magnet is used to magnetize the steel to detect and size floor corrosion for above storage tanks.

RFD Rain Inspection

Digital Ultrasonic Rail Flaw Detector is a newly developed digital ultrasonic equipment of flaw detection. It is used to detect all kinds of flaws in rails materials ranged from 43kg/m – 75kg/m. It is a new type of practical & reliable instrument in rail flaw detection.

Phased Array Weld Inspection

Phased Array is at the heart of manual and semi automated weld inspection solutions which is developed for the Oil & Gas industry. These systems can be used for inspection in compliance with ASME, API and other code criteria, while offering high speed detection capabilities and facilitating indication interpretation.

Hand Wave

HANDWave is able to assess welds for flaws. Type of welds: Thermit, HPG, FB.

The HANDWave can, detect defects to the bottom of the weld in good conditions and if the grain structure is small enough. HANDWave detects flaws in continuous motion on rail as demonstrated below.

Magnetic Particle Inspection

Magnetic particle inspection (MPI) is a non-destructive testing (NDT) process for detecting surface and slightly subsurface discontinuities in ferromagnetic materials such as iron, nickel, cobalt and some of their alloys. the process puts a magnetic field into part. The piece can be magnetized by direct or indirect magnetization. Direct magnetization occurs when the electric current is passed through the test object and a magnet field is formed in the material.

Dry Penetrant Inspection

The penetrate may be applied to all non-ferrous materials and ferrous materials, although for ferrous components magnetic-particle inspection is often used instead for its subsurface detection capability. Dye penetrate inspection (DPI), Also called liquid penetrate inspection (LPI) or penetrante testing (PT), is a widely applied and low-cost inspection method used to locate surface-breaking defects in all non-porous materials (metals, plastics or ceramics), inspection is used to detect casting, forging and welding surface defects such as hairline cracks, surface porosity, leaks in new products, and fatigue cracks on in-service components.

Corrosion Mapping

Using Ultrasonic techniques, inspection of components can detect cracks, wall los, and other damage. With the capacity for both Angle and linear zero-degree beams, it is very cost-effective solution for this type of single-group inspection.

TOFD Weld Inspection

TOFD is an easy effective approach for primary detection in weld defects. It is quick, cost-effective and capable of sizing defects present in the volume of the weld, which can be a problematic area for manufacturing defects.

Component Inspection

Using Ultrasonic techniques, inspection of components can detect cracks, wall los, and other damage. With the capacity for both Angle and linear zero-degree beams, it is very cost-effective solution for this type of single group inspection.

Pressure Vessel Weld Inspection

A complete inspection of pressure vessel welds can be done in a single scan. By combining TOFD and PA in a single inspection pass, a significant reduction in inspection-time can be achieved as compared with conventional raster scanning or radiography. Furthermore inspection results are available immediately, enabling you to detect problems with welding equipment and repair them right away.

Weld Inspections of Small-Diameter Pipes

When coupled with a manual scanner, the flaw detector is capable of inspecting pipes ranging from0.84in. to 4.5in. with a very slim design, the manual scanner is able to inspect pipes in areas with limited access. Adjacent obstructions such as piping, support, and structures can be as close as 12mm (0.5in.).

3D Lase Scanning

3D scanning is the process of analysing a real-world object or environment to collect data on its shape and possibly its appearance (e.g. colour). The collected data can then be used to construct digital 3D models. A 3D scanner can be based on many different technologies, each with its own advantages. Many advantages in the kind of objects that can be digitised are still present. For example, industrial computed tomography scanning and structured-light 3D scanners can be used to construct digital 3D models, without destructive testing. 3D imaging may be used in the petrochemical, Oil and Gas, Refining, Construction and Engineering sectors to achieve digital imaging of large areas, tanks, plants, pipeline routing and to inspect the integrity of such structures.