Techshore Institute of NDT and Inspection Technology

Techshore Institute of NDT and Inspection Technology is an initiative of the leading professional & reputed training brand of Techshore Inspection Services, which is having training centres all over Kerala. Techshore, offers courses in NDT from early 2015 and successful in providing placements for all those candidates in reputed  companies with attractive salary packages and perks. 

NDT course in Techshore includes:

Visual Testing

Radiographic Testing

Ultrasonic Testing

Liquid Penetrant Testing

Magnetic Particle Testing

Radiographic Testing Film Interpretation , etc.

Liquid Penetrant Testing (LPT)

Techshore offers Liquid Penetrant Testing (LPT),it is one of the most widely used non-destructive testing methods. LPT is based on capillary attraction, where a liquid is able to flow into narrow spaces with out the assistance of external force such as gravity. The material processes and procedures used in Liquid Penetrant Testing are designed to make the results of this capillary action visible and capable of interpretation. Liquid Penetrant Testing is an effective means of locating and determining the severity of surface discontinuities in materials, including those that are not visible to the naked eye.

 Ultrasonic Testing(UT)

Techshore offers Ultrasonic Testing (UT),it  is one of the most widely used NDT technique which is used to find out defects and estimate the thickness of the material. Ultrasonic Testing uses high frequency sound waves for testing. The high frequency waves are passed into the material to be tested and based on the reflectors from the material  the defect locations are estimated. The important part of an Ultrasonic testing equipment are:-                             

a.) Probe                                 

b.)Connecting Table                              

c.) Display      

Probes are the device which produces the high frequency sound waves required for testing.

These equipments use frequencies which ranges from 0.1MHZ to 15 MHZ. 

The key advantages of UT are : 

a.) It is highly sensitive and have greater accuracy compared to other NDT methods.

b.) It has high penetrating power and is harmless to the operator and the surroundings.

c.) The defect size, nature and orientation of the defects can be easily found out.

Disadvantages of UT

1.) The surface has to be smooth and even for effective testing.

2.) The testing requires experienced and skilled personnel.

3.) For efficient transmission of sound the different mediums are to be coupled using a couplant.

Magnetic particle test (MPT) 

Techshore offers Magnetic particle test (MPT),it is an advanced method in NDT. Using MPT we can detect surface & near to surface defects on a ferromagnetic material.Here test piece that has to be inspected is magnetized using a magnet. Both permanent magnets & electromagnets are used in MPT. But due to some inconveniences permanent magnets cannot be used everywhere. Even this method is of low cost due to lack of control of field strength & difficulty of placing & removing strong permanent magnets from the component, this method is not widely used.

Electromagnets in the form of an adjustable horseshoe magnet (called a yoke) eliminate the problems associated with permanent magnets and are used extensively in industry. Electromagnets only exhibit a magnetic flux when electric current is flowing around the soft iron core. When the magnet is placed on the component, a magnetic field is established between the north and south poles of the magnet.

Yoke is portable type device. So that it is more easy to use at any corner of the area where we need to test. Since MPT require more than one step, it is necessary to change the magnetic direction. Here yoke is very helpful. Yoke is less in weight but it can lift even heavy parts due to its magnetic power.   

Techshore - Scope of NDT

• Non - destructive testing is a descriptive term used for the examination of materials and components in such a way that allows materials to be examined without changing or destroying their usefulness. NDT or NDE can be used to find , size, and locate surface and sub surface flaws and deflects
• NDT plays a crucial role in every day life and is necessary to assure safety and reliability.
• NDT is a Quality Assurance management tool which can give impressive results when used correctly. It requires an understanding of the various methods available , their capabilities and limitations, knowledge of the relevant standards and specifications for performing the tests.

Techshore- Career of NDT

Job objective to work with a reputed company as a NDT inspector and to use NDT skills and knowledge their fullest. High lights of Qualification.....Ability to inspect welds, casting and forgings with the help of the UT instruments. Ability to maintain the equipment and ensure its proper functioning.

Conclusion

1 NDT is extremely useful for pre-repair assessment of any type of structures.

2 NDT can provide a quantitative and qualitative assessment of various properties of concrete like strength, density, uniformity ( homogeneity ), permeability ( durability) etc.

3 NDT is also very useful in carrying out an assessment of the repaired area to check the efficacy of repairs / repaired material.

4 It is high time that Indian Consultants, Contractors and Chemical Manufacturers involved in repairs of concrete structures, start using NDT, generously.