The Paton Welding Journal, 2012, №03



2012 №03 (06)

2012 №03 (08)

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The Paton Welding Journal, 2012, #3, 30-34 pages  

INCREASE OF STRENGTH CHARACTERISTICS OF SPIRALLY-WELDED PIPES OF STRUCTURAL DESIGNATION

A.S. PISMENNY, A.S. PROKOFIEV, R.S. GUBATYUK, A.A. PISMENNY, V.V. POLUKHIN, R.V. YUKHIMENKO and A.R. GAVRIK

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
Influence of high-temperature thermomechanical treatment (HTTMT) on strength properties of welds on spirally-welded pipes made from 08kp (rimmed) steel of 1 mm thickness was studied. It is shown that HTTMT of welds in low-carbon steel joints allows producing sound welded joints of pipes with high service properties.
 
 
Keywords: high-frequency welding, spirally-welded pipes, weld, weld strength, blank of structural designation, calculation technique, tread rings, samples
 
 
Received:                25.10.11
Published:               28.03.12
 
 
References
1. (1976) Safe operation of vapor boilers, vessels and pipelines. Ed. by V.I. Chernega. Kiev: Tekhnika.
2. Gulyaev, G.I., Semenov, O.A., Shvedchenko, A.A. et al. (1989) Creators of steel arteries. Dnepropetrovsk: Promin.
3. Kiuchi, M. (2011) Novel tendencies in production of arc welded pipes. Novosti Chyorn. Metallurgii za Rubezhom, 1, 55-58.
4. Wiebe, J., Scheller, W. (2010) Blick ueber den Tellerrand. Praktiker, 6, 248-251.
5. (2009) At OJSC Uraltrubprom was set in operation the arc welding pipe mill 630 for production of arc welded pipes. Svarshchik, 4, 5.
6. Tabelev, V.D., Kareta, N.L., Panasenko, A.I. et al. (1985) Structure and phase composition of welds made by capillary soldering under pressure. Avtomatich. Svarka, 11, 26-29.
7. Lebedev, V.K., Tabelev, V.D., Pismenny, A.S. (1993) Impact toughness of butt joints soldered with plastic deformation of base metal. Ibid., 8, 29-31.
8. Tabelev, V.D. (1991) On formation of joints in soldering with plastic deformation of base metal. In: Consumables and technology of soldering. Kiev: PWI.
9. Annenkov, N.I., Kolyupanov, O.V. (1996) State-of-the-art of production and applications of spirally-welded pipes. Stroitelstvo Truboprovodov, 4/5, 12-18.
10. Efimov, O.Yu., Yuriev, A.B., Ivanov, Yu.F. et al. (2008) Thermomechanical strengthening of large diameter fittings. Izvestiya Vuzov, Chyorn. Metallurgiya, 12, 49-53.
11. Kolbasnikov, N.G., Zotov, O.G., Duranichev, V.V. et al. (2009) Effect of high deformations in hot state on structure and properties of low-carbon steel. Metalloobrabotka, 4, 25-31.
12. Majzel, V.S., Navrotsky, D.I. (1973) Welded structures. Leningrad: Mashinostroenie.
13. (2003) DSTU 3245-95: Welded steel cylinders for liquefied carburated hydrogen gases at pressure up to 1.6 MPa. General technical requirements. Kyiv: Derzhspozhyvstandart.
14. (1983) Catalogue of specimens for testing of metals. Ed. by V.K. Lebedev. Kiev: PWI.
15. Pisarenko, G.S., Agarev, V.A., Kvitka, A.L. et al. (1973) Resistance of materials. Kyiv: Vyshcha Shkola.
16. Goudremont, E. (1959) Special steels. Ed. by A.S. Zajmovsky, M.L. Bernshtejn. Vol. 1. Moscow: Metallurgiya.
17. GOST 8696-74: Spirally-welded pipes with spiral weld of general purpose.

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