WELDING DEFECTS
• FCAW • TIG welding or GTAW • MIG welding or GMAW • MAG welding or CO 2 welding • SAW ... are rejectable only if they exceed specification requirements Radiographic standards used for evaluation of weld defects:- ... –most frequently found in austenitic SS(high thermal coeff). 16/06/2015 33 . CRATER CRACK/STAR CRACK
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HEAT TREATMENT
irimee.indianrailways.gov.inHeat Treatment •process of controlled heating and cooling of metals •Alter their physical and mechanical properties •without changing the product shape •sometimes takes place inadvertently due to manufacturing processes that either heat or cool the metal such as welding or forming.
UNIT M1- DIESEL ENGINE FUNDAMENTALS AND …
irimee.indianrailways.gov.inengines are `I.C.Engines', only diesel engines work on Compression Ignition principle and should be termed as `C.I.Engines'. In other words while all `C.I.Engines' are `I.C.Engines' but all `I.C.Engines' are not `C.I.Engines'. Compression Ratio The compression ratio of `I.C.Engines' is the ratio between total volume i.e. (clearance
AIR BRAKE SYSTEM IRAB-1 - Indian Railways Institute of ...
irimee.indianrailways.gov.inAir Brake System 2 < CR brakes are applied. The difference between CR and BP pressure will decide the amount of BC pressure. As BP is common in the train and locomotive hence according to the BP droppage the brake application and release will be synchronized in the formation and locomotive MU ...
PAINTS, ITS CONSTITUENTS & FUNCTION
irimee.indianrailways.gov.indurability, compatibility & minimise film cracking •Fungicides, Biocides and Insecticides prevent growth and attack of fungi, bacteria and insects. (protect the paint in storage from spoilage due to bacterial growth) •Flow control agents improve flow properties. •Defoamers prevent formation of air bubbles entrapped in the coatings.
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PROSES PENYAMBUNGAN DAN PERALATANNYA
staffnew.uny.ac.idFlux Core Arc Welding (FCAW) Pengelasan FCAW ini hampir sama dengan proses GMAW, FCAW menggunakan elek-troda berinti sebagai pengganti solid electrode dan digunakan untuk menyambung logam ferrous. Inti logam dapat berupa / mengandung mineral, serbuk paduan besi dan material yang dapat berfungsi sebagai shielding