Steel as material | |
ArticleName | Crane building industry uses high-strength construction steels with fine m icrostructure |
ArticleAuthor | M. Kirschbaum, U. Hamme |
ArticleAuthorData | Liebherr-Werk Ehingen GmbH (Ehingen, Germany): M. Kirschbaum, Mag. Eng., Welding Technique, Construction and Development, e-mail: markus.kirschbaum@liebherr.com |
Abstract | Crane building industry uses widely at present time high-strength construction steels with fine microstructure. Apllication of such steels is accompanied by high lifting capacity and productivity as well as decrease of weight of some construction components. Current aspects of welding of billets and components for manufacture of self-propelled and track-type cranes is described Motivation for development of lightweight constructions and real possibilities of their creation are observed Motivation and possibilities of creation of lightweight constructions from high-strength steels is examined. Technological features of billet welding in production of self-propelled and caterpillar cranes are described. The area of application of high-strength fine-grained structural steels is examined in the field of standardization and meaning properties of such steels: strength of weld-ing seam, fatigue, deformation, stability and applicability. |
keywords | Cranes, structural fine-grained steels, cooling rate, cracks, welding, welding seam, deformation, lightweight constructions |
References | 1. DIN EN 1011-2, 2001-05: Empfehlungen zum Schweißen metallischer Werkstoffe, Teil 2: Lichtbogenschweißen von ferritischen Stählen. |
Language of full-text | russian |
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