专利名称：APPARATUS AND METHOD FOR ENSURING
CONCENTRIC WELD DEPOSITION OF
MATERIAL ON A PIPE INTERIOR刘坦
发明人：Derek J. Wolstenholme
申请号：US13351890
申请日：20120117颈椎病艾灸穴位
何长公开号：US20120111926A1
公开日：
停下脚步
20120510瞻仰的读音
专利内容由知识产权出版社提供
专利附图：
摘要：A welding jig for ensuring concentricity of an interior surface of a pipe with a circular outer periphery of a bolting flange thereon, comprising (i) a frame member; (ii)
重庆好耍的地方two spaced-apart rollers positioned at one end of said frame member, each adapted to remain in contacting engagement during welding with said circular outer periphery of said bolting flange; and (iii) a chill block, having a convexly-curved outer surface of a curvature corresponding to a desired inner diameter of said pipe, adapted to be positioned proximate said interior surface of said pipe. The rollers permit translational movement of the chill block about a center point of said pipe flange when the welding jig is placed on the pipe flange, to permit uniform diametrical deposition of weld material on said inner diameter of said pipe flange. A method of making a pipe is further disclod and claimed.
葛泓语申请人：Derek J. Wolstenholme
地址：Calgary CA
国籍：CA
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