METHOD FOR MAKING RAIL BONDS
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United States of America Patent
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app pub date -
Mar 3, 2008
filing date -
Mar 5, 2007
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Abandoned
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Abstract
A rail bond for bonding a wire or cable to a surface of rail includes a copper sheet and weld metal material solidified from molten metal material. A copper or other metal sheet is placed against the surface of the rail where the bond is to be located, and against an opening of a chamber of a graphite mold where the molten weld metal material is formed. Molten material is produced into liquid form and flows to the copper sheet material. This causes the copper sheet material to melt and bond against the steel rail. The presence of the copper sheet material between the molten weld metal and the rail surface reduces the amount of heating in the steel rail, and reduces the size of the heat affected zone (HAZ) in the steel rail.
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