skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method of fabricating a flow device

Abstract

This invention is a novel method for fabricating leak-tight tubular articles which have an interior flow channel whose contour must conform very closely with design specifications but which are composed of metal which tends to warp if welded. The method comprises designing two longitudinal half-sections of the article, the half-sections being contoured internally to cooperatively form the desired flow passageway. Each half-section is designed with a pair of opposed side flanges extending between the end flanges and integral therewith. The half-sections are positioned with their various flanges in confronting relation and with elongated metal gaskets extending between the confronting flanges for the length of the array. The gaskets are a deformable metal which is fusion-weldable to the end flanges. The mating side flanges are joined mechanically to deform the gaskets and provide a longitudinally sealed assembly. The portions of the end flanges contiguous with the ends of the gaskets then are welded to provide localized end welds which incorporate ends of the gaskets, thus transversely sealing the assembly. This method of fabrication provides leak-tight articles having the desired precisely contoured flow channels, whereas various conventional methods have been found unsatisfactory.

Inventors:
 [1]
  1. Kingston, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
863178
Patent Number(s):
4112568
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23P - OTHER WORKING OF METAL
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; fabricating; flow; device; novel; leak-tight; tubular; articles; interior; channel; contour; conform; closely; design; specifications; composed; metal; tends; warp; welded; comprises; designing; longitudinal; half-sections; article; contoured; internally; cooperatively; form; desired; passageway; half-section; designed; pair; opposed; flanges; extending; integral; therewith; positioned; various; confronting; relation; elongated; gaskets; length; array; deformable; fusion-weldable; mating; joined; mechanically; deform; provide; longitudinally; sealed; assembly; portions; contiguous; localized; welds; incorporate; transversely; sealing; fabrication; provides; precisely; channels; conventional; methods; found; unsatisfactory; desired flow; flow passage; conventional methods; flow channels; flow channel; method comprises; novel method; method comprise; metal gasket; integral therewith; metal gas; tubular article; design specifications; /29/138/239/285/

Citation Formats

Hale, Robert L. Method of fabricating a flow device. United States: N. p., 1978. Web.
Hale, Robert L. Method of fabricating a flow device. United States.
Hale, Robert L. Sun . "Method of fabricating a flow device". United States. https://www.osti.gov/servlets/purl/863178.
@article{osti_863178,
title = {Method of fabricating a flow device},
author = {Hale, Robert L},
abstractNote = {This invention is a novel method for fabricating leak-tight tubular articles which have an interior flow channel whose contour must conform very closely with design specifications but which are composed of metal which tends to warp if welded. The method comprises designing two longitudinal half-sections of the article, the half-sections being contoured internally to cooperatively form the desired flow passageway. Each half-section is designed with a pair of opposed side flanges extending between the end flanges and integral therewith. The half-sections are positioned with their various flanges in confronting relation and with elongated metal gaskets extending between the confronting flanges for the length of the array. The gaskets are a deformable metal which is fusion-weldable to the end flanges. The mating side flanges are joined mechanically to deform the gaskets and provide a longitudinally sealed assembly. The portions of the end flanges contiguous with the ends of the gaskets then are welded to provide localized end welds which incorporate ends of the gaskets, thus transversely sealing the assembly. This method of fabrication provides leak-tight articles having the desired precisely contoured flow channels, whereas various conventional methods have been found unsatisfactory.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

Patent:

Save / Share: