Non Destructive Testing - NDT Inspection Methods at WorkPosted by Shields Mcgee on February 5th, 2021 Non Destructive Testing (NDT) or Non Destructive Inspection because it is also known is really a collection of techniques that enable the testing of materials and never having to damage or hinder the material in anyway. In practice NDT allows various industries to check the condition of apparatus for example boilers, tubes, pipes, heat exchangers etc. without degrading it of course, if necessary, without taking systems offline or interfering with finely calibrated equipment. NDT can be used throughout numerous industries including chemical, petroleum, power, bulk storage & offshore, amongst many more. Typically his comment is here are employed included in a written scheme of examination, which ensures regular tests are executed on equipment so that you can maintain safety and stop failures. In practice how much NDT completed in different industries varies widely, and not uncommon for testing just to be done whenever a failure occurs. Recently employment involved being called in the market to inspect tube leaks occurring inside client's main condenser, the tubes weren't on account of be replaced for a couple of years, coupled with forced the system offline on multiple occasions. The leaks couldn't be isolated to one area, so an entire inspection was ordered to be able to assess the situation and plug the leaks. The situation was remedied and the condenser remained online without incident before next scheduled shutdown. Situations such as these can be avoided, and whether this became the situation above or otherwise not, regular inspections will keep units online and prevent loss of revenue from reduced capacity, along with ensure the safety of everyone operating in your community. Inspection of plants usually involves many different techniques to fully assess flaws. Ultrasonic is often utilized to sure up tests performed via other options for example. This helps saving time and money through the use of cheaper, quicker techniques to receive an idea of in which the flaws are, before investigating them more thoroughly. my link of the extremely common techniques used include; LFET - Low Frequency Electromagnetic Technique, originally developed to inspect tanks floors, scanners have been developed for most applications. RFET - Remote Field Electromagnetic Technique, made to quickly and accurately inspect ferrous tubing from the inside. ECT - Eddy Current Technique, developed to test nonferrous metals, though expanded to also include ferrous metals via mag wave technology. BFET - Balanced Field Electromagnetic Technique, used as an option to eddy current and is also much faster than other methods such as dye penetrant and magnetic particle, this can be used virtually anywhere cracking is an issue. Portable hardness tester - Often used for thickness measurements, or to sure up readings via other methods.Like it? Share it! More by this author |