Use of barium-strontium carbonatite for flux welding and surfacing of mining machines

International Scientific and Research Conference on Knowledge-based Technologies in Development and Utilization of Mineral Resources 2017

矿业工程;地球科学

Kryukov, R.E.^1 ; Kozyrev, N.A.^1 ; Usoltsev, A.A.^1

Siberian State Industrial University, 42 Kirova Street, Novokuznetsk

654007, Russia^1

关键词: Carbonatites;    Chemical compositions;    Iron-carbon alloys;    Mining machines;    Non-metallic inclusions;    Silicomanganese;    Smelting industry;    Technological feature;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/84/1/012024/pdf
DOI  :  10.1088/1755-1315/84/1/012024

来源: IOP

【 摘 要 】

The results of application of barium-strontium carbonatite for modifying and refining iron-carbon alloys, used for welding and surfacing in ore mining and smelting industry, are generalized. The technology of manufacturing a flux additive containing 70 % of barium-strontium carbonatite and 30 % of liquid glass is proposed. Several compositions of welding fluxes based on silicomanganese slag were tested. The flux additive was introduced in an amount of 1, 3, 5 %. Technological features of welding with the application of the examined fluxes are determined. X-ray spectral analysis of the chemical composition of examined fluxes, slag crusts and weld metal was carried out, as well as metallographic investigations of welded joints. The principal possibility of applying barium-strontium carbonatite as a refining and gas-protective additive for welding fluxes is shown. The use of barium-strontium carbonatite reduces the contamination of the weld seam with nonmetallic inclusions: non-deforming silicates, spot oxides and brittle silicates, and increases the desulfurizing capacity of welding fluxes.