Nondestructive Testing service providers

 An Important principle of Radiography Testing procedure is How to arrange for Radiography Testing? Radiography is Non destructive testing method, which utilizes penetrating electromagnetic radiation for capturing the volumetric images of an object on film or digitally in a computer. Radiography testing broadly uses any of the two types of radiation X ray or Gamma Ray for this purpose. Gamma Ray Emitted from radio decaying isotopes. In this case radiation strength cannot be increased or decreased for purpose of inspection components of different material and different thickness. Instead only the expose time can be controlled. After  calculated exposure time, the radiation emitting source is sent back in to a shielded enclosure. X Rays are produced by a electrical system. In this case the strength of radiation can be controlled in relative to the component atomic number and thickness of material. Here we are going to see how to make the radiographic set up and ex...

 ThermographyTesting – NonDestructive Testing Method that involves visualization of heat radiations from an object and the method is a non contact inspection technique, . It is also simply called as IR – Infrared Thermography, Thermal Imaging technique or Thermography. Principle of Infrared Thermography Testing. Infrared Thermography Sensors capture Infrared radiation from any object which is above absolute zero temperature (-273.15°C), and displays on screen as -heat distribution images, any defective areas emits more heat due to more heat distribution around the defects. What is Infrared Wave? Infrared are Electromagtic Radiation similar to Light Radiation, but are not visible to human eyes , becauses of their longer wavelength, the wave length of which is longer than Red (i.e  700 nm) is called Infra Red( i.e Inferior Frequency than Red Light), Amount of Infrared Radiation captured is equal to the heat dissipated from that area, therefore ...

 ›Penetrant Testing is one of the effective method for detecting surface flaws,. ›It can be used on Metals, non-metals, plastics, ceramics & Glass. ›Not suitable for Porous materials such as wood, bricks, concrete, & other non graded castings, sponge Qualification of Examination Personel ›Able to read a Jaeger Type No. 2 Standard Chart at a distance of not less than 12 in. (300 mm), ›Should be capable of distinguishing and differentiating contrast between colors used. ›These requirements shall be checked annually. ›Should clear the Examinations with percentage stated in ASNT SNT-TC-1A Basic Principle ›Capillary Action – Low surface tension fluid( dye) penetrates in to clean and dry defects open to the surface. Advantages of PT ›High sensitivity to small surface discontinuities. ›Vast application -metallic and nonmetallic, magnetic and nonmagnetic, and conductive and nonconductive materials may be inspected. ›Large areas and large volumes of parts/materia...

 Non Destructive Testing , NDT , is industrial method for analyzing the characteristics of material or finding the discontinuities in the material & Weld joints, without damaging the material. NDT is otherwise called as, Non Destructive Evaluation –NDE, Non Destructive Inspection (NDI) and it a quantitative analysis method. Whereas Destructive Testing is a Qualitative analysis method, to find the quality of the material such as Tensile strength, Elongation property, hardness value, Impact toughness, etc The above mentioned qualitative properties cannot be found using NDT methods. This is  because in order to find the mechanical properties, it is required to apply load on the material. The load deforms the material  making them not usable. But NDT Methods are used in such a manner, that the material can be reused after the testing. This area answer some of the FAQ Frequently asked Questions What is NDT? What is the use of NDT? What is Difference betw...

  Non Destructive Testing  (NDT): NDT is industrial method for analyzing the characteristics of material or finding the discontinuities in the material & Weld joints, without damaging the material. NDT is otherwise called as, Non Destructive Evaluation –NDE. Non Destructive Inspection (NDI) and it a quantitative analysis method.   Destructive Testing : Destructive Testing is a Qualitative analysis method, to find the quality of the material such as Tensile strength, Elongation property, hardness value, Impact toughness, etc. The above mentioned qualitative properties cannot be found using NDT methods. Because in order to find the mechanical properties, it is required to apply load on the material. The load deforms the material making them not usable. But NDT Methods are used in such a manner, that the material can be reused after the testing. Few of the NDT Methods which are used in industries for Defect detection in materials are given below: Ultra...