Title:
IMPROVED WELDING JOINT FOR SOOT BLOWER LANCE TUBE
Document Type and Number:
Japanese Patent JPS63290315
Kind Code:
A
Abstract:
A soot blower lance tube is disclosed comprising at least an inner and an outer, hollow tubular section (101, 102), each of equal outer diameter and welded to one another end-to-end, wherein the inner one (101) of said sections has a wall thickness which is greater than the wall thickness of the outer one (102) of said sections. The inner end extremity (200) of said outer section is deformed radially inwardly in a convergent taper, whereby the inside diameter of said outer section (102), at its innermost and extremity (200), substantially matches the inside diameter of said inner section (101) at its outermost extremity, said sections (101, 102) being coaxially aligned in closely spaced, non-overlapped relation, and weld material (210) joining said sections. Said weld material (210) extends between said sections (101, 102) over substantially the full wall thickness of said inner section (101) and extends axially outward along the convergent external surfaces of the inner end extremity (200) of said outer section (102), wherein said sections (101, 102) being joined exclusively by said weld material (210).
Inventors:
ANDORE TOMASU ABUROMEICHISU
Application Number:
JP3877488A
Publication Date:
November 28, 1988
Filing Date:
February 23, 1988
Export Citation:
Assignee:
WHITE CONSOLIDATED IND INC
International Classes:
F23J3/00; B23K33/00; F16L25/14; F22B37/52; F28G1/16; (IPC1-7): F22B37/56; F23J3/00; F28G1/16
Attorney, Agent or Firm:
Heikichi Odashima