How are railway tracks joined?
Train rails are joined together via a seriously awesome process called exothermic welding, which basically involves lighting off a chemical called Thermite and sending molten iron into a sand mould.
What are track fittings?
Track fittings include, among other things, the rail fastenings used for track maintenance. These are necessary in order to attach the sleepers to the tracks. They include among other things the nuts, spring washers, coach screws and rail clips.
What are the parts of a railroad track?
Railroad track components is composed of ballast bed, railway sleeper, steel rail, railway connection parts, railway fasteners, turnout and other parts of a railway track.
What type of steel is used in railway tracks?
Railroad track steel is typically 1084 or equivalent hot rolled steel. This is a medium carbon steel with 0.7% to 0.8% carbon and 0.7% to 1% manganese. This type of steel is great for heat treating.
How are railroad rails connected?
The rails are connected by railroad ties, usually bolted to them. The ties are set into the loose gravel or ballast, which typically consists of loose stones to help transfer the load to the underlying foundation.
What are different types of fastenings and fittings used in railway track?
The common rail fastenings include rail spikes with base plates above the tie, E-clip fastening, Pandrol Fast Clip fastening, tension clamp fastening, bolt clamp fastening, tack joint and chairs fastening, and steel spring keyed rail in chair fastening. For passenger railway line, comfort and reliability is major goal.
What are L tracks?
L-track, also known as Logistic Track or Airline Track, is a versatile tie-down system consisting of aluminum rails, fittings, and straps used to secure a range of cargo. You can use an L-track aluminum track rail nearly anywhere you need to secure cargo quickly and easily.
What holds railroad tracks together?
Rail spikes A rail spike (also known as a cut spike or crampon) is a large nail with an offset head that is used to secure rails and base plates to railroad ties (sleepers) in the track. In 1982, the spike was still the most common rail fastening in North America.
What are the different types of bearing plates used as a track fitting?
Bearing plates are cast iron, wrought iron or mild steel plate which are placed in between the F.F rail to distribute the load on a large area of wooden sleepers. If the flat footed rails are directly fixed on wooden sleepers, sinking in the sleeper take place due to heavy loads of trains and thus loosen the spikes.
What are the construction steps for railway track?
The construction of a new railway track can be divided into three stages.
- Earth Work.
- Plate Laying.
- Laying of Ballast.
