Invention Application
US20150344987A1 METHOD AND APPARATUS FOR PERFORMING A LOCALIZED POST-WELD HEAT TREATMENT ON A THIN WALL METALLIC CYLINDER 有权
在薄壁金属圆筒上执行局部焊后热处理的方法和装置

METHOD AND APPARATUS FOR PERFORMING A LOCALIZED POST-WELD HEAT TREATMENT ON A THIN WALL METALLIC CYLINDER
Abstract:
A method of performing a localized post weld heat treatment on a weld seam in a thin wall metallic body may include attaching thermocouples to the outside surface of the weld seam and covering the weld seam with a thermal insulating blanket. Cooling bands are attached to the outside of the body on both sides of the weld seam. An inert atmosphere enclosure with inlet and exhaust ports is fitted over the weld seam, thermal insulating blanket, and cooling bands. A power supply and control system for an induction coil or coils situated in close proximity to the weld seam are actuated and the weld seam is subjected to a heat treatment without thermally affecting regions of the metallic body adjacent to the weld seam and external to the cooling bands.
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