PECULIARITIES OF TECHNOLOGY OF MANUFACTURE AND APPLICATION OF FLUX-CORED STRIPS FOR SURFACING.

Autor: VORONCHUK, A. P., ZHUDRA, A. P., KOCHURA, V. O., PETROV, A. V., FEDOSENKO, V. V.
Předmět:
Zdroj: Paton Welding Journal; May/Jun2015, Issue 5/6, p107-111, 5p
Abstrakt: 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index