|
SN
|
Financial Year
|
Broad Area of Achievement
|
Title of Achievement
|
Description of Achievement
|
Likely Benefits
|
Current Status of Implementation
|
|
1.
|
2007-08
|
Safety
|
Development of AT welding technologies with three piece moulds and compressed air petrol preheating.
|
RDSO successfully developed AT welding techniques with three piece mould and compressed air petrol preheating for 52 kg/90UTS and higher rail sections. The use of this technique has been made mandatory on IR.
|
Improved quality of welds and in service performance.
|
Implemented
|
|
2.
|
2007-08
|
Safety
|
1. Development and trial of corrosion resistant Ni-Cr-Cu (NCC) Rails.
|
The corrosion of rail is the very significant factor resulting in premature renewal of rails. A new metallurgy was developed as result of study conducted in project on “Corrosion prevention of rails” under “Technology mission on railway safety”. This metallurgy has been developed jointly by RDSO, IIT Kanpur and SAIL. 70MT of these rails rolled by BSP were put under limited field trial on Vijaiwada-Gudur section of SCR. The new metallurgy has shown better corrosion resistance.
|
Reduced corrosion of rails in corrosion prone coastal areas.
|
Extensive field trial in progress.
|
|
3.
|
2009-10
|
Safety
|
Development of digital ultrasonic rail testers.
|
RDSO successfully developed digital single and double rail testers with digital technology in association with industry. This will facilitate Recording of A-scan and monitoring of growth pattern of flaw.
|
Improvement in USFD testing of Rail/Welds
|
Implemented
|
|
4.
|
2009-10
|
Safety
|
Development of specification for ultrasonic rail testing using vehicular system.
|
The frequency of USFD testing of Rail/Welds is dependent on GMT of the section. With introduction of higher axle loads and increase in traffic, the traffic density on various routes has increased significantly. Due to increased traffic density, USFD testing is required to be undertaken more frequently, resulting in increase of the workload of USFD testing is manifold. To facilitate faster testing and mitigate the increased work load of USFD testing, RDSO developed ‘Indian Railway standard specification for ultrasonic testing of rails/welds using vehicular system, Provisional, 2009’ and issued on 15.04.2009.
|
Introduction of state-of-the Art Vehicular USFD testing system on Indian Railways. This will also help in effective monitoring of flaw growth pattern.
|
Tender under progress at NR.
|
|
5.
|
2010-11
|
Safety
|
Development of Forged Junction Rail
|
At locations of change of Rail Section in track, the Junction fishplates were used. It was not feasible to continue LWR at such location. RDSO developed the drawing and provisional specifi-cation of 52kg & 60kg forged junction rail. This will reduce instances of Failure of junction fish plates and facilitate continuance of LWR.
|
Reduction in junction weld failure
|
Implemented
|
|
6.
|
2011-12
|
Safety
|
Development of track based gauge face lubricating system
|
The gauge face Lubrication is required to enhance service life of Rails particularly on sharp curves. In order to assess suitability of mechanized lubricators, 12 imported & 8 indigenous lubricators were installed in CR, WCR andECoR in 2008 with trial period of two years. Based upon the experience gained, Draft specification for lubricators has been developed and submitted to Railway Board for consideration.
|
Reduction in wear of rail gauge face specially at curved locations.
|
Draft Specification is under Railway Board’s considerations
|
