మీకు తెలియని 7 భారతీయ రైల్వే టెక్నాలజీలు! | Indian Railways

మీకు తెలియని 7 భారతీయ రైల్వే టెక్నాలజీలు! | Indian Railways Alumino-Thermic Welding (ATW) Description: An older, more basic method where a highly exothermic reaction between aluminum and iron oxides creates molten steel. This molten metal is poured into a mold around the rail ends, causing them to melt and fuse as the metal solidifies. Applications: Widely used for repairs and converting flash-butt welded panels into long welded rails, as it is more practical for on-site work. Quality Concerns: Can have inconsistent weld quality, potential casting errors, and microstructure discrepancies. Standardization: Short pre-heat processes have been standardized for higher rail sections (75R, 90R, and above), while older conventional methods are used for lower sections like 60R. Flash Butt Welding Description: A more sophisticated process that requires heavy machinery but produces a high-quality weld. Applications: Primarily used for large-scale, new track laying projects because the machinery is less portable. Advantages: New machines can align and de-twist rail ends, and the joints are stronger than those from ATW, offering a higher strength (closer to the rail itself). Quality Control: Welds are checked using transverse testing and ultrasonic testing to ensure they meet strength and defect-free requirements. Common defects and detection Transverse cracks: Can originate from inclusions during welding and be detected by ultrasonic testing. Horizontal cracks in the web: Often occur in AT welds where bolt holes were not removed, leading to improper stress distribution. Detection: Ultrasonic testing (USFD) is a key method used by Indian Railways to detect internal defects in welds most interesting and unknown facts in telugu, unknown facts in telugu, facts in telugu, amazing facts in telugu, interesting facts in telugu, unknown facts, interesting and amazing facts, most interesting facts, telugu unknown facts, facts, interesting facts, interesting facts you never know, most amazing top 10, interesting facts, telugu facts, telugu interesting facts, telugu real facts, amazing, arun surya teja, t talks,think deep,think deep videos,think deep riddles,think deep riddles in telugu,think deep new video#interestingfactsintelugu​​​​​​​​​​​ ​​​​​​​​​​​#indian railways# indian railway# india# railway# indian railways food# railways in india# indian railways video# indian railways status# indian railways trains# ​​​​​​#facts​​​​​​​​​​​#telugu_wonders_latest_videos​​​​​​​​​​​ Scripting and Editing :- jagannadham Voice Over :- * jagannadham, Disclaimer- Some contents are used for educational purpose under fair use. Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. The Content used In this Video is only For educational purpose For Any Copyright Issues or for branding promotions Contact Me on riddlestelugu1@gmail.com