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Corrosion-proofing by means of the recently developed alloy of Zn with 5 weight-% Al, `Galfan', was compared in tests to that achieved from hot galvanizing alone, as used hitherto. The continuous double dip process of hot galvanizing followed by Galfan coating was developed to production standard for high-carbon steels, and a theory proposed of the formation of alloys in this process. Tests were then carried out to determine: - corrosion - mechanical and technological characteristics of Galfan-coated wire - behaviour of strands and cables made of Galfan-coated wire when subject to continuous stress and corrosion. The results obtained at the test-site and in the laboratory were confirmed in tests on a winding-gear cable in operation. In all tests Galfan coating performed better than zinc coating in withstanding corrosion and the mechanical stresses in cables, both stationary and running, and can therefore be recommended as a means of enhancing the safety of steel wire cables.

Additional information

Authors: SCZEPANSKI K, DMT Gesellschaft für Forschung und Prüfung mbH, Bochum (DE)
Bibliographic Reference: EUR 13990 DE (1992) 350 pp., MF, ECU 16, blow-up copy ECU 52.50
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