Welcome to Decibel Nde Training Institute Kerala - Official Blog

By Decibel -
Decibel Nde Training Institute is an educational institution providing world class Training & Certification in the field of Non Destructive Testing Technology & Quality Management Engineering.

Decibel has always been a forward‐thinking, modern and student orientated Institution with a thriving and vibrant student community from across the globe. We have a firm commitment to confronting inequality and celebrating diversity.

Our mission of 'Making Education Work' mean our students' future is our top priority. With our excellent facilities and staff, you can be sure that Decibel is a first‐class choice for your chosen area of study.

We have always been pioneering in our course provision, being the first Indian Institution to offer courses in advanced NDE Techniques like Time of Flight Diffraction & Phased Array and first Asian Institution to have an Organized Training program for Mechanical/General Quality Controller.

We are celebrating our 10th anniversary and we are also looking to the future ‐ a future that will continue to build on our foundations of academic excellence and 'Making Education Work’, inspiring students, scholars, teachers, and recruiters alike to come to the Decibel Nde. We are constantly investing in institution and facilities to ensure all students have a worldclass teaching and learning environment, state‐of‐the‐art facilities and enhancing the vibrancy of the institution experience to make your time in Decibel truly one to cherish. Whether you choose to come to Decibel to study or work, or simply as a visitor, we look forward to welcoming you to our institution and hope that you enjoy your time here.

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By Decibel -
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Plate lamination defect is one of the primary processing discontinuity that originates during hot or cold forming processes and is considered as a serious metal plate defect.  All the metals contain discontinuities at micro and macro levels. These discontinuities, when above the acceptance level, are termed as defects. The discontinuities in metal are classified according to the stage of manufacturing in which they initiate.  Plate lamination defect can be defined as flat and thin subsurface separations present inside metal plate, parallel to the surface of the plates. The sources of this defect are inherent discontinuities present in metal such as inclusion and porosity, which are flattened during the rolling process.  Carbon Steel Plate Lamination Defect & Reasons A carbon steel plate is produced by the process of hot or cold rolling a thick slab. During this process, carbon steel may pass through the rollers many times to achieve the desired thickness. Each pass results in
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Comparison of the use of rutile and cellulosic electrodes Knowledge Sharing From Decibel.

By Decibel -
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Comparison of the use of rutile and cellulosic electrodes Types of electrodes and their compositions Many types of manual metal arc (MMA) electrodes are available on the market. Depending on the main constituent of their flux, they are grouped into three categories: cellulosic, rutile and basic. All electrodes consist of a cored wire (typically 2.5–6mm diameter) coated by a flux. The core wire is generally made of low-quality riming steel and the fluxes contain many elements allowing refinement of the weld macrostructure. The composition of the flux impacts the electrodes’ behaviour. The main constituents of the different types of electrodes and the shielding gas created for each are described in Table 1 (Bowniszewski, 1979). Table 1 Main constituent of the three possible types of electrodes and shielding gas created by its combustion. Electrode type Main constituent Shielding gas created Rutile Titania (TiO2) Mainly CO2 Basic Calcium compounds Mainly CO2 Cellulosic
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CSWIP Preparatory Classes in Kerala with 90 % Pass Rate.

By Decibel -
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