New welding fluxes based on silicomanganese slag for deposition and welding of canopies and crib bed of mine support

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 ; Kozyreva, O.E.^1

Siberian State Industrial University, 42 Kirova Street, Novokuznetsk

654007, Russia^1

关键词: Fractional composition;    Liquid glass;    Metallurgical waste;    Mine support;    Non-metallic;    Optimal content;    Silicomanganese;    Technological properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/84/1/012019/pdf
DOI  :  10.1088/1755-1315/84/1/012019

来源: IOP

【 摘 要 】

The paper considers the possibility of efficient use of silicomanganese slag for the production of welding fluxes. The results of studying the use of metallurgical wastes as components of welding fluxes are given. Analysis of the results of mechanical properties of the samples made it possible to determine the optimum content of the pulverized fraction less than 0.45 mm in the flux. The composition and technology of manufacturing a new welding flux using slag of silicomanganese production was developed. The effect of fractional composition on the welding-technological properties of fluxes was studied. The optimal content of liquid glass in the flux, which allows a favorable complex of mechanical properties to be obtained, is 20-30%. To reduce the level of contamination of the weld metal with non-metallic oxide inclusions and to increase the mechanical properties of the welded joint, it is proposed to introduce a carbon-fluorine-containing additive FD-UFS into fluxes based on the slag.