Development of the Technology for Manufacturing Welded Scraper Conveyor Pans from High-Strength Steel  Full text 

A.S. Rudyuk, A.A. Azarkevich, L.V. Kovalenko,V.M. Krasnopolsky

Ukrainian state scientific and engineering center “Energostal” (UkrSSEC “Energostal”)

UDC 622.647.53

Metall. Min. Ind.,  2012, Vol. 4, No. 2, pp. 40-44

Abstract

Investigation purpose is to prevent formation of cracks for manufacturing welded pans. The mechanical properties and hardness of pan sides in hot-rolled condition, after normalization and tempering are investigated. The heat-treatment furnaces and equipment are used for definition of chemical composition, mechanical properties and structure of sides. It was shown that technology including side tempering, side heating before welding and pan tempering after welding guarantees missing of cracks. Investigation results can be used for manufacturing welded goods from high-strength steels.

Keywords: PAN, SIDE, TECHNOLOGY, WELD, CRACK, NORMALIZATION, TEMPERING, HARDNESS, MECHANICAL PROPERTIES, STRUCTURE