Application of Alloyed Cast Iron to Increase the Durability of Products of the Mining and Metallurgical Industry

Lubyanoi, D. A.; Pudov, E. Yu.; Kuzin, Evgeny; Semenova, Olga; Rybár, Radim

doi:10.1051/e3sconf/202017403022

Cited by 5 publications

(2 citation statements)

References 13 publications

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“…The analysis of numerous sources revealed a large number of factors that affect the processes of reducing resource costs in the operation of mining machines [12][13][14][15].At the same time the sticking to the working equipment is significantly influenced by the factors shown in Fig10. When the quarry is deepened, the temperature of the rock mass increases by about 1 degree-30 meters.…”

Section: Research Resultsmentioning

confidence: 99%

Analysis of ways to combat the sticking of rocks on the working equipment of mining machines

2021

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The article discusses ways to reduce energy consumption in the open-pit mining of minerals in the conditions of Kuzbass by reducing the sticking to the working automobile equipment and excavator complexes. When excavating and transporting cohesive rocks, due to a sharp change in climatic conditions, adhesion-cryogenic processes occur (sticking, freezing on excavator buckets, dumpcars, conveyor belts, dump truck bodies, etc.). This significantly reduces the efficiency of excavating and transport complexes. In this paper, we consider the adhesion-cryogenic processes affecting the rock, methods of anti-sticking for the selection of optimal solutions.

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Section: Research Resultsmentioning

confidence: 99%

Analysis of ways to combat the sticking of rocks on the working equipment of mining machines

2021

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“…Baum B A et al [45] argue that the thermal treatment of melts is a mandatory procedure in the smelting of chromium cast irons. D. Lubyanoi et al in their work [46] recommend different TTM modes for WCC irons. Thus, when WCC17 cast iron is smelted, it is proposed to perform heating and holding at 1520 °C-1540 °C, WCC17N2 cast iron at 1500 °C-1520 °C and WCC22N2MD2F cast iron at 1480 °C-1500 °C.…”

Section:  Introductionmentioning

confidence: 99%

Effect of thermal treatment of chromium iron melts on the structure and properties of castings

Panichkin¹,

Wieleba²,

Kenzhegulov³

et al. 2023

Mater. Res. Express

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The article describes the results of experimental studies for the effect of thermal treatment (TTM) of G-X300CrMo27-1 high-chromium cast iron samples in the solid-liquid and liquid state on the structure, phase composition and properties of ingots. For ingots with a carbon content of 2.8 to 4.5 wt.%, cooled at a rate of 3.3 * 10-2 deg/s, the dependencies of the structure, phase composition, composition of primary, eutectic carbides and matrix, hardness HV and microhardness of its individual phases and resistance to abrasive wear from the temperature of isothermal holding at TTM. A significant effect of the TTM temperature of melts on the structure and properties of high-chromium cast iron ingots were detected. The temperatures of inflection on the plotted curves for the characteristics of the structure and properties of the ingots were associated with a phase transition in iron at 1400 0С and with a point on the phase diagram liquidus of the Fe-Cr system. This as well as an increase in the concentration of chromium in the composition of primary carbides with an increase in the TTM temperature up to 1480 0С, made it possible to assume that (Cr, Fe)7C3 clusters stable in composition were formed in the melt of such cast irons below 1500 0С. The reasons for the decrease in the size of primary carbides during G-X300CrMo27-1 molten chromium iron overheating above 1500 0С were substantiated based on these data. During the TTM of fine-crystalline ingots made of hypereutectic cast iron in the temperature range between the liquidus and solidus lines, it was detected that the primary carbides (Cr, Fe)7C3 recrystallized resulting in a significant decrease in the chromium content and an increase in the iron content in them. At the same time, their sizes did not change significantly. Their share increased, and the share of eutectic carbides decreased. Such process also had a significant impact on the properties of the resulting ingots. The most preferable temperatures of hot metal cast irons in the liquid and solid-liquid states were identified based on the results of the studies.

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Transportation of Liquid Slag in Cast Iron Slag Bowls

Lubyanoi,

Kuzin,

Zvarych

et al. 2024

Lecture Notes in Networks and Systems

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Application of Alloyed Cast Iron to Increase the Durability of Products of the Mining and Metallurgical Industry

Cited by 5 publications

References 13 publications

Analysis of ways to combat the sticking of rocks on the working equipment of mining machines

Analysis of ways to combat the sticking of rocks on the working equipment of mining machines

Effect of thermal treatment of chromium iron melts on the structure and properties of castings

Transportation of Liquid Slag in Cast Iron Slag Bowls

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