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Dye penetrant inspection (DPI), also called liquid penetrant inspection (LPI) or penetrant 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). The penetrant 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. LPI 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. The test surface is cleaned to remove any dirt, paint, oil, grease or any loose scale that could either keep penetrant out of a defect, or cause irrelevant or false indications. Cleaning methods may include solvents, alkaline cleaning steps, vapor degreasing, or media blasting. The end goal of this step is a clean surface where any defects present are open to the surface, dry, and free of contamination. Note that if media blasting is used, it may "work over" small discontinuities in the part, and an etching bath is recommended as a post-blasting treatment. The penetrant is then applied to the surface of the item being tested. The penetrant is allowed "dwell time" to soak into any flaws (generally 5 to 30 minutes). The dwell time mainly depends upon the penetrant being used, material being testing and the size of flaws sought. As expected, smaller flaws require a longer penetration time. Due to their incompatible nature one must be careful not to apply solvent-based penetrant to a surface which is to be inspected with a water-washable penetrant.

Magnetic Particle Inspection (MPI) is a Non-Destructive Testing (NDT) process for detecting surface and slightly subsurface discontinuities in ferroelectric materials such as iron, nickel, cobalt, and some of their alloys. The process puts a magnetic field into the 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 magnetic field is formed in the material. Indirect magnetization occurs when no electric current is passed through the test object, but a magnetic field is applied from an outside source. The magnetic lines of force are perpendicular to the direction of the electric current which may be either Alternating Current (AC) or some form of Direct Current (DC) (rectified AC). The presence of a surface or subsurface discontinuity in the material allows the magnetic flux to leak, since air cannot support as much magnetic field per unit volume as metals. Ferrous iron particles are then applied to the part. The particles may be dry or in a wet suspension. If an area of flux leakage is present the particles will be attracted to this area. The particles will build up at the area of leakage and form what is known as an indication. The indication can then be evaluated to determine what it is, what may have caused it, and what action should be taken, if any. This examination should apply in a row stage and final stage. Process mostly used for bar stage, forging casting and after heat treatment process .

We are specialised in: industrial ultrasonic examination of welds, casting, forging and plates, magnetic particle inspection by dry method, wet non-fluorescent and wet fluorescent method, fluorescent and non-fluorescent liquid penetrant test, thickness measurement. Along with this we are also providing training & certification in various non destructive methods. Service we offer â�¢ ultrasonic testing â�¢ in ultrasonic testing (ut), the very short frequency ultrasonic pulse-waves with frequencies ranging from 0.1-15 mhz and occasionally up to 50 mhz are transmitted into materials to detect internal flaws or to characterize materials. A common example is ultrasonic thickness measurement, which tests the thickness of the test object where other side is not accessible like pipes and pipe corrosion. Â�¢ ultrasonic testing is often performed on steel, other metals and alloys, though it can also be used on concrete, wood and composites, albeit with less resolution. It is a form of non-destructive testing used in many industries including aerospace, automotive and other transportation sectors. Â�¢ â�¢ it works on the principle of high frequency sound waves travelling in a solid medium and the waves and its back echo to give scan results. Even jobs in which the other side is not accessible (as needed in radiography testing) the ultrasonic testing can be done .there is recording system in the digital ultrasonic machines where complete scanning can be recorded. The ut machines are operated by chargeable batteries and therefore can be taken easily at site even at heights. Â�¢ magnetic particle inspection â�¢ 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. Testing is performed to international standards such as en473 and iso9712 by qualified personnel.

• ultrasonic testing • in ultrasonic testing (ut), the very short frequency ultrasonic pulse-waves with frequencies ranging from 0.1-15 mhz and occasionally up to 50 mhz are transmitted into materials to detect internal flaws or to characterize materials. A common example is ultrasonic thickness measurement, which tests the thickness of the test object where other side is not accessible like pipes and pipe corrosion. • ultrasonic testing is often performed on steel, other metals and alloys, though it can also be used on concrete, wood and composites, albeit with less resolution. It is a form of non-destructive testing used in many industries including aerospace, automotive and other transportation sectors. • • it works on the principle of high frequency sound waves travelling in a solid medium and the waves and its back echo to give scan results. Even jobs in which the other side is not accessible (as needed in radiography testing) the ultrasonic testing can be done .there is recording system in the digital ultrasonic machines where complete scanning can be recorded. The ut machines are operated by chargeable batteries and therefore can be taken easily at site even at heights.

Salient Features Sealed Touch Key Pad Auto Calibration For Mild Steel Big LCD Display V- Path Corrected For High Accuracy Long Works with 'AA' size cells . ETM-2 is microprocessor based hand held precision thickness gauge. It is designed to measure accurately and reliable from one side of a parallel walled component. The small size, hand held gauge with highly advanced sophisticated manufacturing technology offers simplicity and ease of operation. No prior training is essential to make good measurements. In spite of its small size, it has a large LCD display for strain free working. The instrument is designed to work under demanding site condition. It is suitable to make measurement on plates, pipes, corroded sections, pressure vessel, small tubes, ferrous 8. non-ferrous components and machined parts, plastics, glass and ceramic among, a variety of application to measure the wall thickness, even if their surfaces are at an elevated temperature. A range of probes are available to suit for a specific application.