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

Title: Method of bonding

Abstract

1. A method of making a fuel-containing structure for nuclear reactors, comprising providing an assembly comprising a plurality of fuel units; each fuel unit consisting of a core plate containing thermal-neutron-fissionable material, sheets of cladding metal on its bottom and top surfaces, said cladding sheets being of greater width and length than said core plates whereby recesses are formed at the ends and sides of said core plate, and end pieces and first side pieces of cladding metal of the same thickness as the core plate positioned in said recesses, the assembly further comprising a plurality of second side pieces of cladding metal engaging the cladding sheets so as to space the fuel units from one another, and a plurality of filler plates of an acid-dissolvable nonresilient material whose melting point is above 2000.degree. F., each filler plate being arranged between a pair of said second side pieces and the cladding plates of two adjacent fuel units, the filler plates having the same thickness as the second side pieces; the method further comprising enclosing the entire assembly in an envelope; evacuating the interior of the entire assembly through said envelope; applying inert gas under a pressure of about 10,000 psimore » to the outside of said envelope while at the same time heating the assembly to a temperature above the flow point of the cladding metal but below the melting point of any material of the assembly, whereby the envelope is pressed against the assembly and integral bonds are formed between plates, sheets, first side pieces, and end pieces and between the sheets and the second side pieces; slowly cooling the assembly to room temperature; removing the envelope; and dissolving the filler plates without attacking the cladding metal.« less

Inventors:
 [1];  [2];  [2];  [2]
  1. (late of Columbus, OH)
  2. Columbus, OH
Issue Date:
Research Org.:
Battelle Memorial Institute, Columbus, OH (United States)
OSTI Identifier:
866435
Patent Number(s):
4709848
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
DOE Contract Number:  
W-7405-ENG-92
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; bonding; fuel-containing; structure; nuclear; reactors; comprising; providing; assembly; plurality; fuel; units; unit; consisting; core; plate; containing; thermal-neutron-fissionable; material; sheets; cladding; metal; bottom; top; surfaces; width; length; plates; whereby; recesses; formed; pieces; thickness; positioned; engaging; space; filler; acid-dissolvable; nonresilient; melting; 2000; degree; arranged; pair; adjacent; enclosing; entire; envelope; evacuating; interior; applying; inert; gas; pressure; 10; 000; psi; outside; time; heating; temperature; flow; below; pressed; integral; bonds; slowly; cooling; removing; dissolving; attacking; comprising providing; adjacent fuel; top surface; nuclear reactors; nuclear reactor; inert gas; assembly comprising; fissionable material; plate containing; entire assembly; plate positioned; resilient material; cladding plates; fuel unit; unit consisting; thermal-neutron-fissionable material; adding metal; time heat; /228/376/976/

Citation Formats

Saller, deceased, Henry A., Hodge, Edwin S, Paprocki, Stanley J, and Dayton, Russell W. Method of bonding. United States: N. p., 1987. Web.
Saller, deceased, Henry A., Hodge, Edwin S, Paprocki, Stanley J, & Dayton, Russell W. Method of bonding. United States.
Saller, deceased, Henry A., Hodge, Edwin S, Paprocki, Stanley J, and Dayton, Russell W. Tue . "Method of bonding". United States. https://www.osti.gov/servlets/purl/866435.
@article{osti_866435,
title = {Method of bonding},
author = {Saller, deceased, Henry A. and Hodge, Edwin S and Paprocki, Stanley J and Dayton, Russell W},
abstractNote = {1. A method of making a fuel-containing structure for nuclear reactors, comprising providing an assembly comprising a plurality of fuel units; each fuel unit consisting of a core plate containing thermal-neutron-fissionable material, sheets of cladding metal on its bottom and top surfaces, said cladding sheets being of greater width and length than said core plates whereby recesses are formed at the ends and sides of said core plate, and end pieces and first side pieces of cladding metal of the same thickness as the core plate positioned in said recesses, the assembly further comprising a plurality of second side pieces of cladding metal engaging the cladding sheets so as to space the fuel units from one another, and a plurality of filler plates of an acid-dissolvable nonresilient material whose melting point is above 2000.degree. F., each filler plate being arranged between a pair of said second side pieces and the cladding plates of two adjacent fuel units, the filler plates having the same thickness as the second side pieces; the method further comprising enclosing the entire assembly in an envelope; evacuating the interior of the entire assembly through said envelope; applying inert gas under a pressure of about 10,000 psi to the outside of said envelope while at the same time heating the assembly to a temperature above the flow point of the cladding metal but below the melting point of any material of the assembly, whereby the envelope is pressed against the assembly and integral bonds are formed between plates, sheets, first side pieces, and end pieces and between the sheets and the second side pieces; slowly cooling the assembly to room temperature; removing the envelope; and dissolving the filler plates without attacking the cladding metal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {12}
}

Patent:

Save / Share: