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Compact,lightweight, high‐frequency oscillation device using electromagnetic force and corresponding bead formation phenomena. Development of high‐frequency oscillating arc (1st report)
Authors:M Kodama  H Goda  T Kawano  H Iwabuchi
Affiliation:1. Nagasaki Research and Development Centre , Mitsubishi Heavy Industries KK ,;2. Nagasaki Shipyard and Machinery Works , Mitsubishi Heavy Industries KK ,
Abstract:The current work expresses considerations about some of the differences of the fused flux CIS-F10 obtained by means of fragmentation in water and with an air jet. The comparisons are established taking into account their respective granulometric distributions, shapes and grain densities, as well as the energy and the time spent in the process of obtaining each of these variants. Criteria for the physical process of flux fragmentation with an air jet and its influence over the aspects formerly mentioned are also included. The principal findings were that the process for obtaining the fused flux CIS-F10 granulated with an air jet consumes 37% less energy and 25% less time than the one performed with pouring water. The solidness grade of the spherical grains, granulated with air, (with pycnometric density 2.31 g/cm3), with a granulometric distribution more continuous than that of the granules in water, contributes to the increase of the apparent density (11%) of the flux and promotes the creation of artificial granulometric distributions, counteracting the rolling effect during welding.
Keywords:submerged arc  SAW  consumable  wet granulation  dry granulation
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