Indian Welders in making trains
The post is about the contribution of our Indian welders in making trains.
Indian welders in the Work – welders in making trains
The coach is taken to the lifting underframe shop where the body of the coach is lifted with an OT crane.
The trolleys are run and sent to the trolley shop for repair.
The underframe of the lifted coach is now inspected by workers by tapping with spike hammer for locating the cracked and in the repair shop, they dismantle while the wheels are sent to its designated shop.
The trolley is received in the trolley repair shop for further dismantling while the wheels are sent to its designated shop.
The remaining trawling is thoroughly examined, repaired, and overhauled the wheels received from the trolley shop, where the Indian welders join in the work.
Indian welders at the final assembly – welders in making trains
And at last, the trolley is assembled and is made for equipping in coaches.
In the meantime, the corrosion repair takes place in the Matunga workshop, works with trough flow repair body sight filler, and body repair.
After the required corrosion is repaired, the coach is sent to the paint shop.
CARRIAGE WORKSHOP
Matunga carriage workshop where they are meticulously examined, mended, and refurbished.
The workshop was approved in 1911 and began operations in 1915.
Fusion Welding by the Alumino- thermic process through Indian Welders
Alumino-Thermic welding with a short pre-heating method employing a high silica sand mold (carbon dioxide dried) is being used on Indian Railways to weld rails of various chemistries and sections.
The exothermic reaction of the aluminum powder and iron oxide is started in a re-usable or ‘one-shot’ crucible after pre-heating both rail’s ends, and the liquid metal flows into the mold.
Air-petrol fuel mixtures are commonly used for short pre-heating. Oxy-LPG and compressed air petrol fuel mixtures are being developed because they take less time to pre-heat the rail ends to the desired temperature, resulting in a reduction in block time and enhanced joint quality.
Many technological advancements in the AluminoThermic (A.T.) welding process has demanded revisions to the manuals published in April 1987 and February 1998.
Due to the same factors, the Indian Railway Standard specification for fusion welding of rails using the Alumino-Thermic technique was updated and released under serial no. IRS: T-19-2012.
In other words, Molten steel is poured into a mold around the gap between the rail ends to be bonded in the aluminothermic welding process.