Cast Iron and Steel Smelting in Induction Crucible Furnaces of Industrial Frequency

2020 ◽  
Vol 299 ◽  
pp. 530-534
Author(s):  
Viktor A. Kukartsev ◽  
Vladislav V. Kukartsev ◽  
Vadim S. Tynchenko
Keyword(s):  
Cast Iron ◽  
Induction Melting ◽  
Metal Scrap ◽  
Steel Smelting ◽  
Medium Frequency ◽  
Iron And Steel ◽  
Advantages And Disadvantages ◽  
Induction Crucible Furnaces ◽  
Temperature Melting ◽  
Industrial Frequency

A brief analysis of the cast iron and steel smelting in induction furnaces of industrial and medium frequency has been carried out. The analysis of the used metal scrap for the smelting of synthetic iron in induction melting furnaces with a padded lining of a lining mixture, based on quartzite, is carried out. The requirements for temperature melting modes, which are regulated by this type of melting furnaces developers, are reflected. The advantages and disadvantages of using induction crucible furnaces of industrial and medium frequency are considered. The features of smelting synthetic pig iron in Russia are noted, the main of which are the following: the absence of cast iron scrap, which makes it necessary to use a metal scrap from a single steel scrap, and use temperature melting conditions above 1450 ° C; use a lining based on quartzite, as the cheapest, but sharply reducing its resistance to the operation of the furnace at such melting temperatures (from 300-350 to 200-250 smelts). The actuality of the possibility of steel smelting in induction crucible furnaces of industrial frequency with the use of acid lining, based on the Pervouralsk quartzite, is substantiated. It is explained by the fact that existing foundries are equipped mainly with induction melting furnaces of industrial frequency, and the use of induction melting furnaces of medium frequency requires considerable material costs.

Specialty of Сarbon-Carbid-Silicic Mixture Using (UKKS) as Substitute of Re-Carburizing Agent and Ferrosilicon for Grey Iron Melting

2019 ◽  
Vol 946 ◽  
pp. 696-701
Author(s):  
Viktor A. Kukartsev ◽  
Vladislav V. Kukartsev ◽  
Vadim S. Tynchenko
Keyword(s):  
Cast Iron ◽  
Essential Element ◽  
Modern Technology ◽  
Cost Comparison ◽  
Pig Iron ◽  
Induction Crucible Furnaces ◽  
The Cost ◽  
Technology Of Production ◽  
Grey Iron ◽  
Industrial Frequency

In the transition to modern high intensive processes of smelting there had been reversed technologies structures to get carbon content in cast iron. A re-carburizing agent, that can be one of the most significant reasons of occurrence of defects of the cast, and deformed metal and decrease of the level of properties have been identified. There was not only made the decarburizing agent of modern technology of production of pig-iron essential element (particularly synthetic), but also resulted in many of variants of its realization from the standpoint of level decarburizing, type, using re-carburizing method of decarburizing technological phase, where enter of carbonaceous materials. Particularly sharply process of execution re-carburizing influences receipt of synthetic pig-iron in induction crucible furnaces of industrial frequency from metal works, which contained 80-90% of steel breakage. Then, it is necessary to raise the content of carbon from 0,3 to 3,0-3,8% (depending on the pig-iron mark). It forces foundry enterprises to approach with big care at a choice of existing materials, which it is possible to use as decarburizing and to verify carefully, which is appearing at the market. In work application there are considered variants of using carbon-carbide-silicon mixture UKKS-31 at melting of grey pig-iron in induction, crucible furnaces, intended for pig-iron melting. The cost comparison is presented between traditional technology and with using mix UKKS-31.

scholarly journals Effect of heat treatment of quartzite on the mechanism of destruction of the lining of induction furnaces

2019 ◽  
pp. 49-53
Author(s):  
A. S. Zavertkin
Keyword(s):  
Heat Treatment ◽  
Cast Iron ◽  
Raw Materials ◽  
Iron And Steel ◽  
Secondary Factor ◽  
Firing Mode ◽  
Induction Crucible Furnaces

The mechanism of wear of quartzite lining of induction crucible furnaces during the smelting of iron and steel is presented. It has been established that the main cause of lining wear is a decrease in its strength caused by the transition of the tridimite joint into cristobalite, which is much easier to wash off the walls of the crucible with moving metal and slag. The second important factor of wear is the choice of quartzite raw materials, its material and granulometric compositions, the firing mode and the technology of melting during operation of the furnace. Silicon recovery from silica of carbonization lining by carburizer and cast iron, which is part of, is a secondary factor of crucible lining wear. Ill. 4. Ref. 5. Tab. 1.

scholarly journals Steel smelting in induction crucible furnaces with industrial frequency

2018 ◽  
Vol 194 (4) ◽  
pp. 042024
Author(s):  
V A Kukartsev ◽  
V S Tynchenko ◽  
V V Kukartsev ◽  
E A Chzhan ◽  
N A Shepeta
Keyword(s):  
Steel Smelting ◽  
Induction Crucible Furnaces ◽  
Industrial Frequency

The Peculiarities of Smelting of Wear-Resistant Cast Iron IChH28N2 in the Induction Crucible Furnace IChT10

2020 ◽  
Vol 299 ◽  
pp. 397-402
Author(s):  
Viktor A. Kukartsev ◽  
Vladislav V. Kukartsev ◽  
Vadim S. Tynchenko
Keyword(s):  
Cast Iron ◽  
Steel Scrap ◽  
Wear Resistant ◽  
Melting Temperatures ◽  
Arc Furnaces ◽  
Iron Smelting ◽  
Crucible Furnace ◽  
Iron Scrap ◽  
Induction Crucible Furnaces ◽  
Industrial Frequency

Wear-resistant cast iron smelting is produced in electric arc furnaces, due to the use of steel scrap in metal charge, ferrochrome and refund if there is one. Scrap of cast iron with the necessary chemical composition is not present because the proportion of manufacturing parts from wear-resistant cast iron is very small. Thus, there is no opportunity to form castings of wear-resistant cast iron using foundries equipped only with induction crucible furnaces of industrial frequency (IChT), since the furnace is designed for melting temperatures not above 1500 °C. In addition, the lining of induction furnaces of industrial frequency is made of quartzite, which provides the necessary durability when operating at temperatures not above 1500 °C. The ability to manufacture blanks from wear-resistant cast iron gives an additional opportunity to expand the range of orders and prevent a reduction in production in factories equipped only with the smelting furnaces of the IChT. The article describes the peculiarities of smelting cast iron IChH28N2 in the furnace IChT10 with acid lining. The technology of conducting melting on pure charge materials without use of cast iron scrap and return is briefly described.

MEEHANITE GD

Alloy Digest ◽  
1964 ◽  
Vol 13 (1) ◽  
Keyword(s):  
Fracture Toughness ◽  
Shear Strength ◽  
Cast Iron ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
Heat Treating ◽  
Damping Capacity ◽  
Iron And Steel ◽  
Lubricating Properties

Abstract MEEHANITE-GD is a high strength iron casting having high damping capacity, self-lubricating properties, and good machinability. It combines the good properties of both cast iron and steel. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fracture toughness and fatigue. It also includes information on casting, heat treating, machining, and joining. Filing Code: CI-32. Producer or source: Meehanite Metal Corporation.

MEEHANITE GA

Alloy Digest ◽  
1954 ◽  
Vol 3 (1) ◽  
Keyword(s):  
Fracture Toughness ◽  
Shear Strength ◽  
Cast Iron ◽  
Physical Properties ◽  
Machine Tools ◽  
High Strength ◽  
Heat Treating ◽  
Damping Capacity ◽  
Iron And Steel ◽  
Lubricating Properties

Abstract MEEHANITE GA is a high strength iron casting having high damping capacity, self-lubricating properties, and good machinability. It combines the good properties of both cast iron and steel. Applications include machine tools, gears, shafts, and housings. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fracture toughness and fatigue. It also includes information on heat treating and machining. Filing Code: CI-5. Producer or source: Meehanite Metal Corporation.

Method for restoring of products worn surfaces made of cast iron and steel by electric arc surfacing

2020 ◽  
pp. 333-335
Author(s):  
P.A. Tsirkov ◽  
V.G. Vyalkov ◽  
S.N. Glazunov ◽  
L.D. Varlamova
Keyword(s):  
Cast Iron ◽  
Electric Arc ◽  
Welding Wire ◽  
Iron And Steel ◽  
Worn Surfaces

The study is devoted to method for restoration of worn cylindrical and fl at surfaces of products made of cast iron and steel using ER70S-6 welding wire at moderate welding currents by electric arc surfacing.

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