Rail anchors made in one-piece construction from spring steel are designed to fasten the rail tight on the base of the rail to prevent the rail from longitudinal movements, i.e. the “ creeping” of the rail, caused by changing temperature, grades, traffic patterns, and braking action of trains.
Rail anchors are applied to the rail base directly and lodge up against the tie. Rail anchors provide a large bearing surface against rail base and rail tie, preventing cutting and wear, and eventually to prolong the working life of the rail ties. Anchors are made for a specific rail weight and base width, which can be classified into two types: the Drive-on rail anchors and Spring type rail anchor.
How to use the rail anchors? There are general rules on the application of rail anchors:
Usually, rail anchors are used in the following locations of rail ways.When anchors are used, taking a 39 foot rail for example, 8 rail anchors is usually commended to be used, as shown in the following diagram. While the steep grades increased, the number of the anchors may be increased.
1. Rail anchors are always used in rails such as 50kg, 85kg, UIC54, UIC60, 90/91lb, 115RE, 136RE, just to name a few. We can produce T or V-shaped rail anchors as well as other types according to clients’ requirements, by forging or casting.
Used in 50Kg, 85Kg,90/91LB, 115RE /136RE ,UIC54 & UIC60 rail, or other types upon customers’ drawings.
C:0.56-0.64, Mn:0.60-0.90, Si:1.60-2.00, Cr:≤0.35, P:≤0.03, S:≤0.03
C:0.42-0.50, Mn:0.50-0.80, Si:0.17-0.37, Cr:≤0.25, P:≤0.035, S:≤0.035
|C:3.60-3.80, Mn:≤0.6, Si:2.50-2.90, P:≤0.08, S:≤0.025|
|Surface||plain (oiled),color painting, zinc painted or HDG|
|Standard||AS1085.10-20002 , DIN, ISO-9001|
2. Generally speaking, based on our former production experience, most common material for rail anchor production is 60Si2MnA, which is often used for rails such as 50kg, 70lb, 80lb, 90/91lb and so on.
3. Rail anchors for Russia market : high grade ductile iron castings
Russian rail anchor is often used in railways by casting, which is made from material of QT400-15. All related mechanical properties of it are strictly following with the standard of TOCT 7293-85.