INCREASING THE COMPETITIVENESS OF LIFTING STEEL ROPES

Abstract

Increasing the competitiveness of domestically produced steel hoisting ropes currently requires increased attention. Domestic enterprises involved in the processing of ferrous metallurgy hardware need to master the production of competitive products that are not inferior in performance characteristics to imported analogues, capable of competing both in the domestic and foreign markets. When considering the issue of increasing the competitiveness of steel ropes, several methods are distinguished: the introduction of new technologies, the development of innovative products, the reduction of production costs, the improvement of product and service quality, the expansion of the product range, and the marketing strategy (product promotion to the market). The article provides an example of increasing the competitiveness of double-twisted steel hoisting ropes in the conditions of the enterprise OJSC Magnitogorsk Hardware and Sizing Plant MMK-METIZ, based on the application of the innovative products development method. Within the framework of this work, process calculations were carried out to determine the wire diameters, lay pitches and angles, the values of tangential and radial gaps between rope elements; using the software package, a mathematical model of an experimental rope of a new design was built; An analysis of the equipment available in production was conducted, using which it is possible to manufacture the declared innovative product. A technology was developed for the production of a double-twisted hoisting rope with a diameter of 10,0 mm of the design 1+5+5/5(1×7(1+6)+5×7(1+6)+5×7(1+6)/5×7(1+6)), possessing significant advantages in terms of key quality characteristics in comparison with ropes according to GOST 3081–80 and GOST EN 12385-4–2015, which are currently widely used for equipping lifting mechanisms of various systems. The innovative steel rope and the method of its manufacture are protected by a patent owned by the enterprise OJSC Magnitogorsk Hardware and Sizing Plant MMK-METIZ.