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Automatic system of welding for nuclear fuel rods; Sistema automatico de soldadura para barras de combustible nuclear

Abstract

The welding process of nuclear fuel must be realized in an inert gas environment (He) and constant flow of this. In order to reach these conditions it is necessary to do vacuum at the chamber and after it is pressurized with the noble gas (purge) twice in the welding chamber. The purge eliminates impurities that can provoke oxidation in the weld. Once the conditions for initiating the welding are gotten, it is necessary to draw a graph of the flow parameters, pressure, voltage and arc current and to analyse those conditions in which have been carried out the weld. The rod weld must be free of possible pores or cracks which could provoke rod leaks, so reducing the probability of these failures should intervene mechanical and metallurgical factors. Automatizing the process it allows to do reliable welding assuring that conditions have been performed, reaching a high quality welding. Visually it can be observed the welding process by means of a mimic which represents the welding system. There are the parameters acquired such as voltage, current, pressure and flow during the welding arc to be analysed later. (Author)
Authors:
Romero G, M; Romero C, J [1] 
  1. Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, 11801 Mexico D.F. (Mexico)
Publication Date:
Jul 01, 1998
Product Type:
Conference
Report Number:
INIS-MX-880
Reference Number:
EDB-01:064769
Resource Relation:
Conference: 8. ININ-SUTIN Technical and Scientific Congress, Salazar, Estado de Mexico (Mexico), 2-4 Dec 1998; Other Information: PBD: 1998
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; ARC WELDING; AUTOMATION; DATA ACQUISITION; DIAGRAMS; FUEL ELEMENTS; FUEL RODS; G CODES; HELIUM; L CODES; NUCLEAR FUELS; SAMPLING
OSTI ID:
20176462
Research Organizations:
Instituto Nacional de Investigaciones Nucleares. Sindicato Unico de Trabajadores de la Industria Nuclear, Mexico D.F. (Mexico)
Country of Origin:
Mexico
Language:
Spanish
Other Identifying Numbers:
TRN: MX0100301034097
Availability:
Available from INIS in electronic form
Submitting Site:
MXN
Size:
6 pages
Announcement Date:

Citation Formats

Romero G, M, and Romero C, J. Automatic system of welding for nuclear fuel rods; Sistema automatico de soldadura para barras de combustible nuclear. Mexico: N. p., 1998. Web.
Romero G, M, & Romero C, J. Automatic system of welding for nuclear fuel rods; Sistema automatico de soldadura para barras de combustible nuclear. Mexico.
Romero G, M, and Romero C, J. 1998. "Automatic system of welding for nuclear fuel rods; Sistema automatico de soldadura para barras de combustible nuclear." Mexico.
@misc{etde_20176462,
title = {Automatic system of welding for nuclear fuel rods; Sistema automatico de soldadura para barras de combustible nuclear}
author = {Romero G, M, and Romero C, J}
abstractNote = {The welding process of nuclear fuel must be realized in an inert gas environment (He) and constant flow of this. In order to reach these conditions it is necessary to do vacuum at the chamber and after it is pressurized with the noble gas (purge) twice in the welding chamber. The purge eliminates impurities that can provoke oxidation in the weld. Once the conditions for initiating the welding are gotten, it is necessary to draw a graph of the flow parameters, pressure, voltage and arc current and to analyse those conditions in which have been carried out the weld. The rod weld must be free of possible pores or cracks which could provoke rod leaks, so reducing the probability of these failures should intervene mechanical and metallurgical factors. Automatizing the process it allows to do reliable welding assuring that conditions have been performed, reaching a high quality welding. Visually it can be observed the welding process by means of a mimic which represents the welding system. There are the parameters acquired such as voltage, current, pressure and flow during the welding arc to be analysed later. (Author)}
place = {Mexico}
year = {1998}
month = {Jul}
}