Method for coating corrugating rolls using high velocity oxygen fueled thermal spray
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United States of America Patent
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-
Dec 10, 1996
Grant Date -
N/A
app pub date -
Nov 29, 1994
filing date -
Nov 29, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for forming a hardened coating on a workpiece, such as a corrugating roll, having an undulated surface. A high velocity oxygen fueled gun is aligned with the undulated surface and a coating material is sprayed onto the surface from the gun to form a hardened coating having substantially uniform surface characteristics. The coating material is a tungsten carbide-cobalt material, or other hard carbide or oxide materials, which is sprayed onto the surface in a direction which is parallel to and offset from a plane passing through the longitudinal center of the roll. During the spraying operation, the gun is traversed along the length of the roll while the roll is rotated.
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