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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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OT Minneapolis Collapsed Bridge Pix
On Aug 20, 5:04 pm, Mike wrote:
On Mon, 20 Aug 2007 14:05:35 GMT, "Oppie" wrote: Yes, the rail is thermite welded to a continuous rail except for insulated signaling joints. They ship it as 1000ft sections though. 1000ft? How? -- I know one way is they lay the rail across successive flat-cars, and just drag it off the side (or off the end by driving the train out from under it). http://wpmuseum.railfan.net/ar57-5.jpg http://www.byrnes.org/railfan/mofw_pg/maint_37.jpg I image-googled "ribbon rail install" and see they also will drag the rail up to 8 miles, letting it drag between the installed rails! They meas. 360deg.F after a 3-mile drag. http://www.alaskarails.org/industries/welded-rails.html Dave |
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