Metal fusion bonding – Process – Specific mode of heating or applying pressure
Reexamination Certificate
2011-04-12
2011-04-12
Stoner, Kiley (Department: 1735)
Metal fusion bonding
Process
Specific mode of heating or applying pressure
C228S110100
Reexamination Certificate
active
07922068
ABSTRACT:
This invention relates to a thermite welding process for joining sections of a railway line in situ, the process including the preliminary step of mounting a suitable welding mould about the aligned sections of railway line to be welded together and sealing the mould to prevent run out; mounting a vibration means on the railway line at a suitable distance from the mould and operating it at a suitable frequency; heating the sections of railway line to a desired temperature; igniting an ignitor means and allowing it to drop into the mould to react with molten steel in the mould and fill a weld area about and between the sections of railway line in the mould; and when solidified, to vibrate the railway line for a further period of time until stress relieving of the cast weld area has occurred.
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Bio Intellectual Property Services LLC
Stoner Kiley
Zaghmout O. M. (Sam)
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