DELIVERABLE 2.8 - urban track
DELIVERABLE 2.8 - urban track
DELIVERABLE 2.8 - urban track
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Figure 2.3<br />
Figure 2.4<br />
Lateral widening<br />
D0208_STIB_M24.doc<br />
TIP5-CT-2006-031312 Page 11 of 44<br />
URBAN TRACK Issued: August 13, 2008<br />
Quality checked and approved by project co-ordinator André Van Leuven<br />
Lateral widening of the dimensions to approx. 9 mm width and 12 mm depth.<br />
For grooved rail at the railhead for the outer rail in the curve (figure 2.3 left).<br />
At the outside edge for the inner rail (figure 2.3 right).<br />
Preliminary stage for the pre-emptive build-up for rail with difficult wear profile.<br />
Pre-emptive build-up welding<br />
Realisation in four steps with two automatic welding heads.<br />
Hardness when building up: 185 HB.<br />
Hardness after a period of use: 450 to 500 HB.
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