Development of Slag Base for Welding Fluxes from Man-Made Mineral Formations of Ural Mining and Smelting Companies

Artemov

Belousov

2019

MSF

Self Cite

This article offers a qualitatively new approach for production fused welding fluxes granules, based on the use of a plasma arc and the Ural region raw materials that have a particularly low content of harmful impurities. The processes of fused welding flux granules forming from the Ural region mineral raw materials under the impact of a highly concentrated energy source have been studied. A new fused welding flux for submerged arc welding is produced by plasma electric arc granulation, and has required shape and fractional, chemical and phase composition of the particles. This research presents experimental and theoretical studies of interaction processes of fine-dispersed batch from mineral raw materials with a highly concentrated energy source, aimed at obtaining new information about the basic patterns of the formation, structure and composition of resulting granules of functional materials, such as welding fused fluxes.

Section: The Main Partmentioning

confidence: 99%

Research on Plasma Electric Arc Granulation Processes of the Ural Region Mineral Raw Materials to Welding Materials for Submerged Arc Welding

Artemov

Belousov

2019

MSF

Self Cite

“…It is found that spherical shape granules have porous surface (Fig 2, b), with fraction composition from 0.5 mm to 2.5 mm (6-10% of the total weight of granular rock furnace burden) [19,20]. In addition, during the granulation, up to 5% of the volume is a generated fused slag because of rock furnace burden falling on the ends of electrodes, and it is already granulated by "dry" method.…”

Section: Introductionmentioning

confidence: 99%

Technology of Mineral Raw Materials Granulation by Electric Arc for Manufacturing of Welding Fused Flux

Ignatov

Sheksheev

2017

SSP

The research and description of modern methods and procedure of welding flux manufacture are presented. The technology of welding fused flux production by influencing on the composition of mineral raw materials furnace burden (from 0,5 mic up to 0,20 mm) with electric arc (diameter graphite electrodes 6-18 mm, current from 200 up to 600 A) is proposed to be significantly reducing the labor input as well as dustiness during the operation and transport and improves mechanical properties (granules strength of 16-19 N/mm2) and surface condition of flux granules. The equipment for the granulation does not require large melting furnace and powerful transformers, fuel gas, coke or oil, i.e. welding flux is easy to manufacture.

Investigation of process for producing carbide-containing welding fused fluxes using plasma granulation

Artemov

IOP Conf. Ser.: Mater. Sci. Eng.

Ignatov

et al. 2020

This article proposes a technology for producing fused welding fluxes using plasma granulation. The developed technology enables producing welding flux granules with carbide-containing additives. This is possible due to high dynamic and temperature effects of plasma arc on mineral raw materials that stops refractory additives from melting and thus remaining in welding materials composition. Using petrographic analysis, it was found that silicon carbide particles remain unchanged in granules of fused welding fluxes composition. Plasma granulation technology makes it possible to obtain both finished products such as welding fluxes and a charge ready for manufacturing cored wire and coated electrodes.