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Automatic-Control System for Safer BrazingAutomatic-control system for radio-frequency (RF) induction brazing of metal tubing reduces probability of operator errors, increases safety, and ensures high-quality brazed joints. Unit combines functions of gas control and electric-power control. Minimizes unnecessary flow of argon gas into work area and prevents electrical shocks from RF terminals. Controller will not allow power to flow from RF generator to brazing head unless work has been firmly attached to head and has actuated micro-switch. Potential shock hazard eliminated. Flow of argon for purging and cooling must be turned on and adjusted before brazing power applied. Provision ensures power not applied prematurely, causing damaged work or poor-quality joints. Controller automatically turns off argon flow at conclusion of brazing so potentially suffocating gas does not accumulate in confined areas.
Document ID
19860000394
Document Type
Other - NASA Tech Brief
Authors
Stein, J. A. (Rockwell International Corp.)
Vanasse, M. A. (Rockwell International Corp.)
Date Acquired
August 12, 2013
Publication Date
July 1, 1986
Publication Information
Publication: NASA Tech Briefs
Volume: 10
Issue: 4
ISSN: 0145-319X
Subject Category
FABRICATION TECHNOLOGY
Report/Patent Number
MSC-20881
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.