The Paton Welding Journal, 2011, №02



2011 №02 (03)

2011 №02 (05)

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The Paton Welding Journal, 2011, #2, 20-23 pages  

DETACHABILITY OF SLAG CRUST IN ARC WELDING (Review) Part 2. Character of the effect of main factors on detachability of slag crust

S.I. MORAVETSKY

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
The effect of various particular factors on detachability of slag crust in automatic arc welding is analysed. It has been established that the flux being developed for narrow-gap automatic arc welding of thick joints should ensure formation of the slag crust with the minimum possible strength and maximum possible linear thermal expansion coefficient. Brief characterisation of the currently available methods for experimental evaluation of detachability of the slag crust is given.
 
 
Keywords: submerged arc welding, multipass welding, narrow gap, alloyed steels, slag crust, detachability, chemical adhesion, phase composition of slag, oxidation potential
 
 
Received:                ??.??.??
Published:               28.02.11
 
 
References
1. Moravetsky, S.I (2011) Detachability of slag crust in arc welding (Review). Part 1: Mechanism of chemical adhesion of slag crust to weld metal. The Paton Welding J., 1, 28-31.
2. Rabkin, D.M., Gotalsky, Yu.N., Kudelya, E.S. et al. (1950) About detachability of slag crust in automatic submerged-arc welding. Avtomatich. Svarka, 3, 10-27.
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7. Grinberg, N.A., Rogova, E.M. (1960) Factors influencing the detachability of slag crust from weld. Ibid., 11, 18-20.
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11. Vornovitsky, I.N., Saveliev, V.G. (2001) Peculiarities of manufacture of electrodes with self-spilling flux. Ibid., 5, 46-49.
12. Lazarev, B.I., Timofeev, M.M., Potapov, N.N. et al. (1979) Peculiarities of development of flux for narrow-gap welding. Ibid., 5, 21-23.
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15. Wittung, L. (1980) Some physical and chemical properties of welding slags and their influence on slag detachability. In: Proc. of Int. Conf. on Weld Pool Chemistry and Metallurgy (London, Apr. 15-17, 1980), Vol. 1, 83-92.
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19. Vornovitsky, I.N., Medvedev, A.Z., Cherkassky, A.L. Method for evaluation of detachability of slag coating from weld metal surface. USSR author's cert. 407685. Int. Cl. B 23 K 29/00. Publ. 10.12.73.
20. Vornovitsky, I.N., Malashonok, V.A., Cherkassky, A.L. (1975) Procedure for quantitative evaluation of slag detachability. Svarochn. Proizvodstvo, 2, 47-48.
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Suggested Citation

S.I. MORAVETSKY (2011) DETACHABILITY OF SLAG CRUST IN ARC WELDING (Review) Part 2. Character of the effect of main factors on detachability of slag crust. The Paton Welding J., 02, 20-23.

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