The Paton Welding Journal, 2013, №03



2013 №03 (10)

2013 №03 (01)

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The Paton Welding Journal, 2013, #3, 54-57 pages  

EXPERIENCE IN CLADDING OF PARTS AND UNITS OF CONSTRUCTION AND ROAD-BUILDING MACHINERY

Ya.P. CHERNYAK

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
Described is the experience gained in development of technologies and procedures for repair arc cladding of fast-wearing parts and units of various construction and road-building machines and mechanisms (rotary supports of cranes, drive sprockets of caterpillar machines, support and stretch road rollers, caterpillar tracks, etc.). Consumables developed for cladding make it possible to effectively repair parts and units of the construction and road-building machinery by extending their overhaul life. Flux-cored wire PP-AN202 was developed to weld parts and units made from high-carbon hard-to-weld steels. This wire allows repairing them without or with minimal preheating, thus considerably reducing the power consumption in repair operations. The metal deposited with flux-cored wires PP-AN194, PP-AN198 and PP-AN199 features high operating properties. High wear resistance in metal to metal friction and abrasive resistance of these consumables provides a 2-3 times increase in extension of service life of fast-wearing road-building machine parts and mechanisms. Industrial verification of the repaired parts confirmed the high efficiency of the developed consumables and technologies. 5 Ref., 7 Figures.
 
 
Keywords: arc cladding, low-alloy and high-carbon steels, fast-wearing parts, construction machinery, welding technology, deposited metal, flux-cored wires, development of technologies
 
 
Received:                23.01.13
Published:               28.03.13
 
 
References
1. Kalensky, V.K., Ryabtsev, I.A., Chernyak, Ya.P. Flux-cored electrode wire for welding and cladding of steel products. Pat. 39646 Ukraine. Fil. 24.11.2000. Publ. 15.09.2003.
2. Kalensky, V.K., Chernyak, Ya.P., Vasiliev, V.G. et al. (2001) Heat input influence on formation of tears in high-carbon steel building-up with austenitic wires. The Paton Welding J., 11, 9-12.
3. Chernyak, Ya.P., Bursky, G.V., Kalensky, V.K. (2002) Some peculiarities of delayed fracture of HAZ metal in steel M76 after cladding using austenitic wire. Ibid., 8, 40-42.
4. Kalensky, V.K., Chernyak, Ya.P., Pritula, S.I. (1999) Repair surfacing of worn out tram rails. Svarshchik, 2, 5.
5. Ryabtsev, I.I., Kuskov, Yu.M., Ryabtsev, I.O. Composition of steel for surfacing. Pat. 75682 Ukraine. Int. Cl. B 32 K 35/00. Publ. 15.05.2006.

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