2020
DOI: 10.1177/1464420720925855
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Experimental investigations on red ochre for application in welding consumable development

Abstract: This paper investigates the thermophysical, physicochemical, and surface properties of mineral waste red ochre, assessing suitability for application in welding consumable development. Red ochre is an anhydrous iron oxide derived from tailings of iron ore haematite. High iron and silica concentration makes it suitable for various engineering applications. Iron in the electrode coatings is known to increase arc stability, bead smoothness, and also it enhances slag detachability along with smoothening bead profi… Show more

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“…red ochre, an iron-rich mineral waste from hematite ore, was added along with a binder and other essential components. 15 The mineral constituents in fixed proportions for each coating were mixed properly, and then binder potassium silicate (K 2 SiO 3 ) was added. The coating was extruded on 309L core wire.…”
Section: Coating Compositionmentioning
confidence: 99%
“…red ochre, an iron-rich mineral waste from hematite ore, was added along with a binder and other essential components. 15 The mineral constituents in fixed proportions for each coating were mixed properly, and then binder potassium silicate (K 2 SiO 3 ) was added. The coating was extruded on 309L core wire.…”
Section: Coating Compositionmentioning
confidence: 99%