can sintered iron be used for production of sponge iron

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Iron powder for pressing sintering Höganäs

These iron powders create the basis for most powder mixes for production of low alloyed sintered steels See our standard iron powder range below Always contact you local sales for more details or specific grad Atomised iron powder Sponge iron powder NC10024 Data Sheet...

Production of Sintered Components

The deformation strengthening of the powder particles can be made evident by means of X-ray structural analysis In three photo-records of X-ray Fig 44 back-reflections are shown obtained A from a commercial sponge-iron powder B from a compact of this powder pressed at...

process of sponge iron production power point animation

Production for sale of pig iron in 2014-15 was 97 million tonnes a growth of 22 over 2013-14 India is the largest producer of sponge iron in the world with the coal-based route accounting for 90 of total sponge iron production in the country...

PDF Spontaneous burning of sponge iron varun suri

The freshly produced sponge iron must be moved from the reactor to some type of storage location or be immediately utilized in a steel producing process In the past it was more typical that the freshly produced sponge iron be used rather quickly in the production of steel However in the last few years this situation has changed...

Powder Production Technologies

Sponge iron provides the base feedstock for all iron-based self-lubricating bearings and still accounts for around 30 of iron powder usage in PM structural parts Solid state reduction is also used for the production of refractory metal powders using hydrogen as the reducing agent and for the production of specialist iron powders by the...

The influence of different iron powders on the friction

Dec 01 2000 0183 32 The possibility of using iron powders of different morphological chemical and physical properties as the bases of the metal matrix of the friction la...

Pure Iron and Low Carbon Steels

for the production of pure iron sintered iron with moderate amount of impurities in the form of solid cores is used widely for telephone relays and switches contactors electromagnets plungers pole pieces solenoids and in other DC devices 1 Since pure iron has low resistivity it is unsuitable for its magnetic application in AC devices...

Accretion Control in Sponge Iron Production Kiln using

Sponge iron is the product generated by direct reduction of iron ore with aid of either carbon or natural gas under controlled temperatures and pressures within a rotary kiln However the performance of rotary kilns is usually adversely affected by the formation of accretion This accumulation of sintered solid particles which form rings...

Sponge Iron Production in Rotary Kiln

Jun 30 2011 0183 32 The increase in the demand of sponge iron is also due to the fact that it is used as a substitute for coking coal which is available in scarcity in the world This book comprehensively deals with the production of sponge iron in the rotary kiln The book is divided into 17 chapters The initial chapters give a brief on the fundamental theories and basic principles of sponge iron production...

Sintering of Highly Rich Iron Oxide Wastes from Integrated

has a sintering plant and uses local iron ores to produce pig iron The other four integrated companies adopt the DR route and use highly rich imported iron oxide pellets to produce sponge iron In the late march of 1977 the head of the EISC had submitted a memorandum 1 in which he stated...

Method for producing sponge iron and reduced iron powder

During the reduction reaction of iron oxide the sintering of the sponge iron proceeds 0012 Since the production of sponge iron having a low apparent density is regarded as key in order to achieve the above object the inventors have studied the formation reaction of the sponge iron...

CHARACTERISTICS OF IRON AND STEEL POWDERS

Iron and steel powders - as well as other metal powders - used in the production of sintered parts can be characterized by three categories of properties 1 Metallurgical properties sponge iron particle has as its name suggests a spongy internal structure while the...

sponge ironpptx Iron Steelmaking

The substitution of scrap by sponge iron has some limitations depending on the furnace operating conditions Only 20 to 30 of sponge iron can be used in the furnace charge when feeding is done in batch The proportion of sponge iron in the charge can however be increased to 40-50 by providing continuous feeding arrangements...

PROCESS FOR PRODUCING SPONGE IRON

An essential advantage of the invention lies in the use of undesired undersize sponge iron to replace solid fuel previously necessary to provide the heat required for sintering whereby the cost of the sintering step in sponge iron production is significantly reduced All amounts stated above are in percent by weight unless otherwise stated...

Iron ore market Iron Ore Sintering Free 30

When chemically pure Haematite contains apprx 70 and Magnetite 724 iron But usually iron content of ores ranges between 50-65/67 rich ores and 30-35 lean ores Typically theIntegrated Steel Plants ISPs use medium/High grade Iron Ore whereas the Sponge Iron plants require only High Grade iron ore preferably with 67 Fe...

Heat and Mass Transfer in Reduction Zone of Sponge Iron

Here the model can be used to explore the performance of sponge iron reactor In particular the effect of reduction gas composition and temperature on quality and capacity of sponge iron products is precisely disclosed because kinetics equation of reduction of hematite to iron metal methane reforming and water gas shift reaction are taken...

PRODUCTION OF IRON AND STEEL POWDERS

2 PRODUCTION OF IRON AND STEEL POWDERS 8 23 The Höganäs Sponge Iron Process The Höganäs sponge iron process is essentially a chemical process in which finely divided iron ore is being reduced with coke breeze yielding a spongy mass of solid metallic iron which can readily be comminuted to iron powder The iron ore used at...

FATIGUE STRENGTH OF SINTERED IRON AND STEEL

higher sintering temperatures provide better diffusion and will generally improve the fatigue properti Sponge iron powder gives a statistically finer porosity at equal density than water atomized base powder and thus superior performance It must however be born in mind that sponge iron has lower compressibility than water...

THE EFFECT OF PHOSPHORUS ADDITIONS ON THE TENSILE

The preferred production method is to add phosphorus in the form of a fine Fe3P powder to iron powder The mechanical properties of a number of sintered steels made with and without Fe3P additions to sponge iron or to high-purity atomized iron powders are reported...

Optimization of Biomass Materials for use in the Sponge

Höganäs affiliates can also be found in other parts of the world for example Brazil India and United States 5 152 The Sponge Iron Process The sponge iron process is a process for producing sponge iron which is porous iron 1 The raw material used for producing sponge iron is magnetite ore concentrate Fe 3 O 4 which is the...

Production of sponge iron powder by reduction of rolling

The reduction of rolling mill scale to sponge iron powder is a new way to take advantage of a cheap by-product of the steelmaking industry yielding sponge iron that can be re-used to the electric furnace as metallic charge for steelmaking to obtain a product with a lower residual content and improved properties8 10 Other possible uses...

Sintered Iron and Steel

Producing sintered parts for P/M involves mixing iron powders and alloying powders eg graphite and copper with a lubricant and then compacting and sintering the mixture...

Powder metallurgy

In these early manufacturing operations iron was extracted by hand from metal sponge following reduction and was then reintroduced as a powder for final melting or sintering A much wider range of products can be obtained from powder processes than from direct alloying of fused materials...

Sponge iron property methods of production application

Sponge iron has found its use in the production of steel the manufacture of iron powder and in copper cementation Metallized mix Partially reduced iron is called a metallized charge It is used to cool the melting process as well as for subsequent smelting in blast furnac The recovery level of the metallized charge is below 80...

Reduced High Quality Atomized Sponge Steel Iron Powder For

Iron powder is used to manufacture sintered components soft magnetic components brazing pastes magnetic paints surface coating magnetic polymers welding chemistry and polymer filtrations and many other applications Is one of the most widely used iron powders It is a very fine iron powder containing particles as small as 325 mesh...

Production of sponge iron powder by reduction of rolling

Production of sponge iron powder by reduction of rolling mill scale M I Martı 180 n 1 2 FALopez3 and J M Torralba4 Rolling mill scale is a solid byproduct of the steelmaking industry that...

JPH07238302A

57 Summary Purpose To obtain an inexpensive sintered filter excellent in corrosion resistance and oxidation resistance Structure Titanium sponge titanium sponge powder or a sintered titanium filter obtained by mixing other metal powder with these and sintering and a method for producing the same...

Sintering A Step Between Mining Iron Ore and Steelmaking

World resources are estimated to be greater than 800 billion tons of crude ore containing more than 230 billion tons of iron The only source of primary iron is iron ore but before all that iron ore can be turned into steel it must go through the sintering process Sinter is the primary feed material for making iron and steel in a blast furnace...

Reduction Annealing for Cast Iron Powder and Its Effect on

The effect of reduction annealing for powder obtained from cast iron shavings on powder specimen properties is studied An approximate mechanism is suggested for the oxidation-reduction process during annealing of cast iron powder An increase in annealing temperature leads to an increase in carbon gasification rate and change in absolute powder weight...

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