Posts

NDT on Shafts

Image
  Non Destructive Testing,NDT on Shafts is considered essential , because the shafts are mostly made as load bearing structures, any defects such as cracks will propagate more during acting of load and eventually will cause failure. The most possible defects in shafts are Cracks and Pipes , which is shown below The Non Destructive methods preferred for defect detection on raw material shafts are Ultrasonic Testing, Magnetic Particle testing / Eddy Current Testing / Magnetic Flux Leakage method. We have not discussed about other NDT methods such as Liquid Penetrant testing & Radiographic testing because for raw material inspection. These methods will be cost effective for raw material testing  ( i.e. most costly and labor intensive, also there is possibility of missing out the cracks in radiography testing due to orientation of crack ) The Defect wise identification method is given as below  , Internal Defect ( Piping ) – Ultrasonic Testing Surface Defects  (C racks) – Magnetic Part

Types of Weld Joints

Image
  Here we are going to see about two types of weld Joints Groove Welds Fillet Welds Dimensions 1.1.  Groove Welds: In the following figures, the perspective drawings of types of weld joints are shown at the left, looking at each joint from the arrow side. The illustrations cover only a small number of all possible symbols.  The symbols shown here are those of the most common manufacturing application. 1.2 Fillet Welds Dimensions: Dimensions of fillet welds must be shown on the same side of the reference line as the weld symbol. When fillet welds are indicated on both sides of a joint and no general note governing the dimensions of the welds appears on the drawing. OBS.:  If the dimensions of one or both welds differ from the dimensions given in the general note, both welds must be dimensioned. The size the fillet weld with unequal legs must be shown in parentheses to left of the weld symbol. 2. The length of a fillet weld, when indicated on the welding symbol, must be shown to the righ

RT acceptance Criteria

Image
  RT ACCEPTANCE CRITERIA AS PER ASME SEC VII DIV-1 for PRESSURE VESSEL RT ACCEPTANCE CRITERIA AS PER ASME SEC IX for TEST Pieces WQC/PQR RADIOGRAPHY TESTING ACCEPTANCE CRITERIA AS PER ASME B 31.3 CHEMICAL AND  PETROLEUM PLANT and PROCESS PIPING To learn more on NDT training, NDT courses and NDT Training Institute for specific ndt methods, feel free to contact us at  https://aqcinspection.com/training/  . For services on radiography testing services and other NDT services and Mechanical testing services contact us. Visit our technical and career updates at our Blog site  https://advancedqualitycentre.blogspot.com  .  https://ndtcenter.blogspot.com  our website  https://aqcinspection.com/news-events/   for many more blogs

Welder Qualification at Messer Industries, Coimbatore

Image
  we provide  standard specifications for welding inspection procedures  for all welding process and Brazing. We offer Welder Procedure Specification, Welder Certificate Renewal Process, Procedure Qualification Record, Welder Qualification Testing, welder Training and Welder qualification services  in Coimbatore, Trichy, Salem, Erode, Chennai.

Oil and gas jobs

Image
   Below are the list of Oil Gas Companies  which might guide the Job seekers to apply and get oil and Gas Jobs opportunities / foreign jobs . People with various qualifications as Engineers of Process Engineering, Designing, Non Destructive Testing NDT, Welding Inspection, Instrumentation,  HVAC, Mechanical Engineering, Civil Engineers and Lot more look forward to work in projects of Oil & Gas Extraction, Processing and Plant Constructions . Oil and Gas Companies Below are the list of Global Leaders involved in Oil & Gas Projects . Shell Saudi Aramco Total Gas Exxon Mobil Enterprise Products Bharat Petroleum Adani Total Gas Chevron Petro China Conoco Phillips Equinor Duke Energy Enbridge Gazprom Southern Company Petrobras Sinopec Rosneft TC Energy EOG Resources Canadian Natural Resources CNOOC Novatek Occidental Petroleum Pioneer Natural Resources Suncor Energy Schlumberger Sempra Energy Lukoil Valero Energy Philips 66 Kinder Morgan Williams Companies Cenovus Energy Neste Hess

WELDING INSPECTION DUTIES

Image
  Welding Inspection duties General   Conditions:    Understand shop drawings, erection drawings, referenced codes and standards. Review the manufacturer’s  Material Test Report (MTR) . Verify all materials properties and that all materials are readily identifiable and traceable to an MTR.    Conduct a complete visual examination of the welding area for visible discontinuities. Visual examination should include, as a minimum, the finished conditions of the seam weld.    For visual examination, the only equipment commonly used is a  magnifying glass  (10x or less) and a  flashlight . Other tools, such as a  borescope and dental mirrors , are useful for inspection inside vessels, pipe, or confined areas.    For structural plates, piping, wrought and cast steel, conduct a complete visual examination of surfaces for visible fabrication defects or discontinuities.    Verify that all applicable welders, welding operators or tack welders are  qualified for the job and the qualifications repor

Steel Making Process

Image
   Steel is an alloy of iron usually containing   less than 1.5% carbon . Steel can be cast into bars, strips, sheets, nails, spikes, wire, rods or pipes as needed by the intended user. Steel making process  at an integrated steel plant involves  three basic steps . First, the  heat source  used to melt iron ore is produced. Next the  iron ore  is melted in a furnace. Finally, the molten iron is processed to  produce steel . The fuel source is often purchased from off-site producers. Steel is made by the Bessemer, Siemens Open Hearth, Basic Oxygen Furnace, Electric Arc, Electric High-frequency and Crucible processes. In the former steel making process, molten pig iron is  refined  by blowing air through it in an egg-shaped vessel, known as a  converter . In the Siemens process, both acid and basic, the necessary  heat  for melting and working the charge is supplied by  oil or gas . Coke  is a solid carbon fuel and carbon source used to  melt and reduce iron ore . Coke production begins