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Norm Of Softening Melting Range Of Sinter

Norm Of Softening Melting Range Of Sinter

norm of softening melting range of sinter

Home norm of softening melting range of sinter. METHODS OF ANALYSIS: 1.2.1 MELTING TEMPERATURE AND The presence of high content of SiO 2 resulted in a narrow softening range (62–83°C), while the high-Fe high-SiO 2 manganese ore exhibited a wider softening range (135–140°C). The melting range was very small in high-Fe low-SiO 2 (3–16°C) and high-Fe high-SiO 2 (6–8°C)

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norm of softening melting range of sinter

Home norm of softening melting range of sinter All-Materials-Inclusive Flash Spark Plasma Sintering Sinter plants 73 030301 Sinter plants Process description By sintering, the pelletisation of fine-grained, smeltable ores, iron ore in particular, to compact lumps by heating nearly to the melting or softening point is understood.

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Impact of Sinter Basicity and Alumina on Softening Melting ...

2019-11-26  Softening–melting (SM) experiments have been carried out by using sinter basicity (CaO/SiO 2) 1.74 to 2.09 and alumina content 2.90 to 3.39%. The objective of the work is to find the relation between sinter basicity and alumina on SM temperature range, so that we can improve the furnace performance.

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Lump Ore and Sinter Behaviour during Softening and Melting

Ore B followed by Ore A and then Ore C. The fluxed sinter results for the full temperature range are very similar to that of Ore C. Sinter is the most porous of the four materials; in Table 1. Test conditions used in a softening melting test. Items Details Sample bed diameter 60 mm

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(PDF) Study of Softening and Melting Behaviour of Iron Ore ...

Softening and melting behaviour of the iron ore materials was studied towards understanding the mechanism of formation of liquid slag and metal phases in the pre-reduced sinter and pellets. Wide ...

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Study of Softening and Melting Behaviour of Iron Ore ...

Softening and melting behaviour of the iron ore materials was studied towards understanding the mechanism of formation of liquid slag and metal phases in the pre-reduced sinter and pellets. Wide range of the sinter and pellets samples was investigated revealing the effect of gangue amount and composition on temperature indices corresponding to gas permeability loss in the bed

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norm of softening melting range of sinter

Jun 06, 2012 Study of Softening and Melting Behaviour of Iron Ore Sinter and Pellets 2012-06-06 00:00:00 Abstract Softening and melting behaviour of the iron ore materials was studied towards understanding the mechanism of formation of liquid slag and metal phases in the pre-reduced sinter and pellets Wide range of the sinter and pellets samples was.

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norm of softening melting range of sinter

norm of softening melting range of sinter. Recycling of steel slag and Limestone cullet from energy saving . 2015-7-25 2010 2011 2007 2011 2004 . Read More ; Carbon-containing and uncarbonized sinter magnesia . 1982-2-16 Carbon-containing and uncarbonized sinter magnesia refractories Abstract: A refractory brick or mass is comprised of 60 to 97% of sinter magnesia, an amount of a carbon ...

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Experimental Study of Softening and Melting Properties on ...

With the increasing of the vanadium-titanium magnetite in sinter, the starting softening temperature increases gradually and the final softening temperature increases as well, thereby the softening range becomes narrow. Both starting and final melting temperatures begin to ascent, and the variation of melting range is not obvious. In addition, we also found that the coke is wetted by the ...

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Behavior of melts during softening and melting down of ...

1995-12-01  OSTI.GOV Book: Behavior of melts during softening and melting down of iron ore sinter under load Title: Behavior of melts during softening and melting down of iron ore sinter

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Impact of Sinter Basicity and Alumina on Softening Melting ...

Softening–melting (SM) experiments have been carried out by using sinter basicity (CaO/SiO 2 ) 1.74 to 2.09 and alumina content 2.90 to 3.39%. The objective of the work is to find the relation between sinter basicity and alumina on SM temperature range, so that we can improve the furnace performance. The increase in basicity of sinter from 1.74 to 2.09 at alumina 2.90 decreases softening ...

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Increasing the Softening as well as Melting Behaviors for ...

erties of them are studied by softening-melting equipment. The experimental results further verify the effect of interac-tions of lump ores/pellets with sinter at high temperature on BF gas permeability. 2. Experimental 2.1. Materials In this study, lump ores L-A and L-B, pellets P-A and P-B as well as sinter S, are used as the raw materials. Table 1 shows the respective chemical compositions ...

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Lump ore and sinter behaviour during softening and melting

Lump ore and sinter behaviour during softening and melting Creator Loo, Chin Eng; Matthews, Leanne Tracy; O'Dea, Damien Paul Relation ISIJ International Vol. 51, Issue 6, p. 930-938 ...

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Theory and Practice of Sintering of Iron ore – IspatGuru

2018-11-25  There is not an appreciable difference for the softening and melting temperatures for sinter and for 80 % sinter and 20 % lump ore blend. With this blend as ferrous burden in the BF, the permeability remained in the normal operating range, the same that when the BF operate with 100 % sinter, with no indication of non-uniform gas flow conditions or abnormal cohesive zone issues and

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Sintering Temperature - an overview ScienceDirect Topics

Low melting point additives of Li 2 CO 3, 49 LiBiO 2, 50 Ba (Cu 0.5 W 0.5)O 3, 51 and Pb 5 Ge 3 O 11 50, 52 have been reported to reduce the sintering temperature. These materials are considered to induce a liquid phase on their own or in combination with other constituent elements of PZT, and a tiny amount of the additives often produces the large effect of low-temperature sintering. Low ...

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(PDF) Pressure-drop Modelling in the Softening and Melting ...

2020-03-20  The softening and melting (SM) under load test is routinely conducted to assess the quality of ferrous burden materials and to predict their possible performance in blast furnace. Due to

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norm of softening melting range of sinter

Jun 06, 2012 Study of Softening and Melting Behaviour of Iron Ore Sinter and Pellets 2012-06-06 00:00:00 Abstract Softening and melting behaviour of the iron ore materials was studied towards understanding the mechanism of formation of liquid slag and metal phases in the pre-reduced sinter and pellets Wide range of the sinter and pellets samples was.

Get Price

Impact of Sinter Basicity and Alumina on Softening Melting ...

Softening–melting (SM) experiments have been carried out by using sinter basicity (CaO/SiO 2 ) 1.74 to 2.09 and alumina content 2.90 to 3.39%. The objective of the work is to find the relation between sinter basicity and alumina on SM temperature range, so that we can improve the furnace performance. The increase in basicity of sinter from 1.74 to 2.09 at alumina 2.90 decreases softening ...

Get Price

Impact of Sinter Basicity and Alumina on Softening Melting ...

Softening–melting (SM) experiments have been carried out by using sinter basicity (CaO/SiO2) 1.74 to 2.09 and alumina content 2.90 to 3.39%. The objective of the work is to find the relation between sinter basicity and alumina on SM temperature range, so that we can improve the furnace performance. The increase in basicity of sinter from 1.74 to 2.09 at alumina 2.90 decreases softening start ...

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Lump Ore and Sinter Behaviour during Softening and Melting

Fig. 18. Contact regions at 1 300C for Ore B and coke from a lump ore only test (top) and Ore B and sinter from a 20% sinter and 80% Ore B test. Widths of both micrographs are 3.57 mm. - "Lump Ore and Sinter Behaviour during Softening and Melting"

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Lump Ore and Sinter Behaviour during Softening and Melting

Fig. 17. Ore C at 1 300C showing the dispersion of fayalite (F) between metallic iron (M) fingers and globules. Slag (S) is also present in the fayalite phase. Width of the micrograph is approximately 0.45 mm. - "Lump Ore and Sinter Behaviour during Softening and Melting"

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Increasing the Softening as well as Melting Behaviors for ...

erties of them are studied by softening-melting equipment. The experimental results further verify the effect of interac-tions of lump ores/pellets with sinter at high temperature on BF gas permeability. 2. Experimental 2.1. Materials In this study, lump ores L-A and L-B, pellets P-A and P-B as well as sinter S, are used as the raw materials. Table 1 shows the respective chemical compositions ...

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Fundamental Study of High Al2O3 Sinter Softening and ...

To elucidate the influence of high Al 2 O 3 content on sinter softening and melting behavior, heating-up reduction test under load was carried out. In addition, microstructure study of sinter bed structure change at a different temperature was also made and the mechanism that the effect of Al 2 O 3 content on sinter softening and melting property was discovered. SEM results showed that the ...

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(PDF) Evaluation of Softening Properties of Sinter and Gas

Effect of Coke Reactivity on Sinter Softening-Melting Property by Simultaneous Evaluation Method of Carbonaceous and Ferrous Burdens in Blast Furnace Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan. Alloys Condensed Matter Physics Metals Theoretical Chemistry Materials Chemistry Physical. 2012 English. Tracking Softening-Melting Behaviour of Blast Furnace Burden ISIJ ...

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Study for Influence of Prereduction Degree on the ...

Softening and melting properties of sinter depends not only on the composition and nature of the iron ore itself, but also by the degree of prereduction. In this paper, according to the curve of reduction degree changes over time at temperature of 900°C, flow of reaction gas, composition of reaction gas, reaction time and reaction temperature were got in order to make the sinter different ...

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Sintering Temperature - an overview ScienceDirect Topics

Low melting point additives of Li 2 CO 3, 49 LiBiO 2, 50 Ba (Cu 0.5 W 0.5)O 3, 51 and Pb 5 Ge 3 O 11 50, 52 have been reported to reduce the sintering temperature. These materials are considered to induce a liquid phase on their own or in combination with other constituent elements of PZT, and a tiny amount of the additives often produces the large effect of low-temperature sintering. Low ...

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Lump Ore and Sinter Behaviour during Softening and Melting

Fig. 18. Contact regions at 1 300C for Ore B and coke from a lump ore only test (top) and Ore B and sinter from a 20% sinter and 80% Ore B test. Widths of both micrographs are 3.57 mm. - "Lump Ore and Sinter Behaviour during Softening and Melting"

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Lump Ore and Sinter Behaviour during Softening and Melting

The softening and melting test is widely used to assess the behaviour of ferrous materials in the cohesive zone of a blast furnace. It is generally agreed that the performance of lump ores is inferior to sinter in the test. To understand the factors determining material behaviour, tests were terminated by quenching samples at different temperatures. The samples were then studied under an ...

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Determination of the fundamental softening and melting ...

1997-12-31  OSTI.GOV Conference: Determination of the fundamental softening and melting characteristics of blast furnace burden materials

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Effect of MgO content in sinter on the softening–melting ...

The effect of sinter with different MgO contents on the softening–melting behavior of mixed burden made from chromium- bearing vanadium–titanium magnetite was investigated. The results show that with increasing MgO content in the sinter, the softening interval and melting interval increased and the location of the cohesive zone shifted downward slightly and became moderately thicker.

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New techniques to measure softening and melting properties ...

New techniques to measure softening and melting properties of mixed burdens of lump ore and sinter

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Melting behaviour of raw glazes - ScienceDirect

2019-11-01  Fusion range (BSS) or softening range (DIN) is the temperature interval between the softening point (Softening in Fig. 1) and the fusion temperature (HCP in Fig. 1). • Sintering range [10,27], starts at the temperature of the first volume decrease of the sample. • Reaction zone [10,27] is typically seen for ashes. This range starts after ...

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IRON ORE SINTERING PART 2. QUALITY INDICES AND ...

sintering, is important in order to operate blast furnaces at a low fuel rate and stable operating rate. ... in terms of softening and melting temperatures, liquid temperature and viscosity for the stable operation of the blast furnace. It is important to have a high iron content, low gangue content, and basicity of the order of 1.6-2.1. Sinter reducibility, and sinter quality in general ...

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(PDF) Effect of Coke Reactivity on Sinter Softening-Melting

2012-01-01  Effect of Coke Reactivity on Sinter Softening-Melting Property by Simultaneous Evaluation Method of Carbonaceous and Ferrous Burdens in Blast Furnace Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan - Japan doi 10.2355/tetsutohagane.98.331. Full Text Open PDF Abstract. Available in full text. Categories Alloys Condensed Matter Physics Metals Theoretical

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Effect of Mineral Elements Migration on Softening–melting ...

For BF smelting of Ti–bearing high basicity sinter, the softening–melting behaviours are not only important, but also very complex. In the past, a large number of researches have been carried out to study softening–melting properties of sinter. It has been reported that softening–melting temperatures could be improved by increasing basicity. 11,12) The softening tempera - tures ...

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The softening and melting of blast furnace burden materials

The thickness of the softening-melting layers in Hirohato No.l ranged from 400 - 500 mm, in the case of the upper layers, 45 to 70 - 100 mm for the layers near the base of the cohesive zone The diminishing thickness is due to compaction, caused by the pressure exerted by

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