Paper Title:
Analysis and Evaluation for Usability of the Low Hydrogen Type Structural Steel Covered Electrode
  Abstract

Metal transfer mode of the low hydrogen type structural steel covered electrode is the one that coexists as the globular short-circuiting transfer and the fine droplet transfer in the flux-bridge. Component of the metal transfer modes has a direct effect on usability of the covered electrode. The oscillograms of the arc voltage and the welding current gained using the traditional photoelectric oscillograph can only qualitatively describe the general characteristics of metal transfer, but can’t make a quantitative analysis. Using the ANALYSATOR HANNOVER, the welding electrical parameters are measured and analyzed. Four characteristic information values correlated with usability of the covered electrode, such as the frequency of the globular short-circuiting transfer, the globular short-circuiting time, the mean value of the globular short-circuiting time and the mean value of the weighted arcing time, are extracted. The method of principal component analysis is applied to determining the evaluation index for usability of the covered electrode. Thereby quantitative evaluation for usability of the covered electrode is realized. A new method is offered for scientifically evaluating usability of the low hydrogen type structural steel covered electrode.

  Info
Periodical
Materials Science Forum (Volumes 575-578)
Edited by
Jitai NIU, Zuyan LIU, Cheng JIN and Guangtao Zhou
Pages
684-689
DOI
10.4028/www.scientific.net/MSF.575-578.684
Citation
Y. Wang, B. Wang, J. H. Gao, "Analysis and Evaluation for Usability of the Low Hydrogen Type Structural Steel Covered Electrode", Materials Science Forum, Vols. 575-578, pp. 684-689, 2008
Online since
April 2008
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Price
$32.00
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