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2015 №06 (23) DOI of Article
2015 №06 (25)

The Paton Welding Journal 2015 #06
TPWJ, 2015, #5-6, 107-111 pages

Peculiarities of technology of manufacture and application of flux-cored strips for surfacing
Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                      0957-798X (print)
Issue                       № 5/6, 2015 (May/June)
Pages                      107-111
A.P. Voronchuk, A.P. Zhudra, V.O. Kochura, A.V. Petrov And V.V. Fedosenko
E.O. Paton Electric Welding Institute, NASU. 11 Bozhenko Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua
The paper deals with the problems of homogeneity of flux-cored strip charge at its mixing in double-cone mixers. Optimum mixing time for mixers of different volume was determined experimentally. Equipment for manufacturing flux-cored strips was optimized and a new design of withdrawal-roll set using pressure sensors was developed, that allows determination and adjustment of press-down force of withdrawal rolls of the mill. The paper gives the results of studying the influence of the degree of charge compaction on welding-technological properties of flux-cored strips. It is found that increase degree of compaction leads to a noticeable increase of the coefficient of electrode material melting. Insufficient or excessive degree of compaction adversely affects the welding-technological properties of flux-cored strips - spattering is increased and process stability deteriorates. 4 Ref., 1 Table, 7 Figures.
Keywords: surfacing, flux-cored strip, charge, mixer, mixing, homogeneity, complex-alloyed powders, degree of compaction, spattering
Received:                20.03.15
Published:               28.07.15
1. Zhudra, A.P., Voronchuk, A.P. (2012) Cladding flux-cored strips (Review). The Paton Welding J., 1, 34-38.
2. Kaufman, J.J. et al. Ultrasonic bone-therapy apparatus and method. Pat. 5547459 U.S. Publ. Aug. 20, 1996.
3. Ashton, M.D., Valentin, F.H. (1986) The mixing of powders and particles in industrial mixers. Transact. of Inst. Chem. Engrs., 44(5), 166-169.
4. Zhudra, A.P., Krivchikov, S.Yu., Dzykovich, V.I. (2014) Application of complex-alloyed powders produced by thermocentrifugal sputtering in flux-cored wires. The Paton Welding J., 12, 36-40. https://doi.org/10.15407/tpwj2014.12.08