In the overview of today’s fast-paced industrial world, quality is of utmost importance. Companies are constantly striving to improve their products, resources, and services to stay competitive in the market. One crucial aspect of ensuring the quality of products is through the use of non-destructive testing (NDT). NDT techniques allow each technician to examine materials and components without causing damage or impairment. In Malaysia, one company stands out for its expertise in NDT – Lingtec.
Non-destructive testing (NDT) is a type of product testing that is used to evaluate the properties of a material, component, or system without causing damage. It is an essential tool to support many industries, including the aerospace, nuclear, laser, automotive, construction systems, ultrasonic sensors, and manufacturing sectors. The NDT process is typically used to inspect product materials and components for flaws, such as cracks, voids, inclusions, and porosity. This engineering method can also be used to measure the structures or thickness of materials, the hardness of welding metals, and the properties of composites.
In addition to these commonly used non-destructive evaluation methods, there are several other techniques available, such as eddy current testing, acoustic emission testing, and thermal imaging. Each industrial method has its own advantages and limitations, and the choice of program technique depends on various factors, including the type of material and product, the size and location of the defect, and the specific required information of the engineering industry.
Non-destructive testing plays a critical role in ensuring the quality and reliability of products in various industries. By detecting defects and flaws early on, inspectors can view and take corrective measures and prevent catastrophic failures or accidents. NDT not only helps in maintaining safety standards but also saves time and costs by avoiding unnecessary repairs or replacements.
At Lingtec, we offer a comprehensive range of non-destructive testing methods to cater to the diverse needs of our clients. Let’s take a closer look at some of the most commonly used techniques:
The penetrant inspection involves applying a liquid or fluorescent dye to the surface of a material to detect surface-breaking defects. The dye penetrates into any cracks or discontinuities, making them visible under specific lighting conditions. This method is particularly effective for identifying flaws in metals, plastics, and ceramics.
MPI is a technique based on magnetic fields/electromagnetic fields. It is not limited to the defects on the surface of a part but it is still interesting because it is a global control method unlike ultrasounds or Eddy currents which are local ones. Magnetic particle inspection relies on the principle of magnetism to detect defects in ferromagnetic materials. Any surface or near-surface discontinuities create magnetic fields that attract the particles, making them visible. This technique is commonly used in the automotive, aerospace, and petrochemical industries.
Radiographic Testing or Radiographic Examination is a non-destructive testing (NDT) method for examining the internal structure of any component to identify its integrity. Radiographic Testing or RT uses x-rays and gamma-rays to produce a radiograph of the test specimen that shows changes in thickness, defects or flaws, and assembly details to ensure optimum quality. Radiographic testing of welds to ensure weld quality is a widely used industry practice.
Ultrasonic testing (UT) is a family of non-destructive testing techniques based on the propagation of ultrasonic waves in the object or material tested. In most common UT applications, very short ultrasonic pulse waves with center 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, for example, to monitor pipework corrosion.
Eddy current testing is a coil of conductive wire that is excited with an alternating electric current. This wire coil produces an alternating magnetic field around itself. The magnetic field oscillates at the same frequency as the current running through the coil. When the coil approaches a conductive material, currents opposite to the ones in the coil are induced in the material—eddy currents.
When training the students on how to choose the right NDT method, there are several research factors to consider:
By considering these factors, Lingtec’s experienced NDT professionals can recommend the most suitable technique to meet your specific requirements.
Safety is always a top priority during NDT procedures. Lingtec adheres to stringent safety protocols to ensure the well-being of our clients and our technicians. This includes:
Ready to take your quality assurance to the next level? Explore our comprehensive range of NDT services in our catalog. From visual inspection to advanced ultrasonic techniques, we have the expertise and equipment to meet your testing needs. Don’t compromise on quality – choose Lingtec for reliable and accurate NDT solutions.
Do you have questions about non-destructive testing or need assistance in selecting the right technique for your project? Don’t hesitate to reach out to our friendly team. We are here to provide you with expert advice and ensure your complete satisfaction. Call us today or send us an email, and let’s elevate your quality assurance together!
Non-destructive testing is crucial for ensuring the integrity and reliability of materials and components without causing damage.
The cost of non-destructive testing depends on various factors, including the type of method used, the component’s size and complexity, and the project’s specific requirements.
The duration of non-destructive testing varies depending on the method chosen, the complexity of the inspection, and the size of the component being tested.
Absolutely! Nondestructive testing can be performed on-site or in the field, allowing for convenient and efficient inspections at the location of your assets.
The frequency of NDT inspections depends on various factors, including the type of industry, regulatory requirements, and the operational conditions of the components being tested.
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