open hearth process of manufacturing steel ppt

Bessemer And Open Hearth Process |authorSTREAM

Bessemer And Open Hearth Process - authorSTREAM Presentation. PowerPoint Presentation: heavy scrap, such as building, construction or steel milling scrap is …

Chapter 6, Section 1: The Expansion of Industry Flashcards ...

Start studying Chapter 6, Section 1: The Expansion of Industry. Learn vocabulary, terms, and more with flashcards, games, and other study tools. ... a cheap and efficient manufacturing process (Bessemer Steel Process) Who developed the Bessemer process? ... (Bessemer Steel Process) What did the open-hearth process allow?

Water Requirements of the Iron and Steel Industry

WATER REQUIREMENTS OF THE IRON AND STEEL INDUSTRIES By FAULKNER B. WALLING x and Louis E. OTTS, JR.2 ABSTRACT Twenty-nine steel plants surveyed during 1957 and 1958 withdrew from various sources about 1,400 billion gallons of water annually and produced 40.8 million tons of ingot steel.

3 Main Types of Melting Furnaces Used in Metal Casting

Foundries use the hearth furnace to melt nonferrous metals in smaller quantities. It uses atomized heavy oil or natural gas in order to create heat with which to melt the material. The open hearth process is also used as means to raise the heat inside a metallurgical furnace that makes use of the waste or unused heat forced out of the furnace.

Steel - Open-hearth steelmaking |

Steel - Steel - Open-hearth steelmaking: Though it has been almost completely replaced by BOF and EAF steelmaking in many highly industrialized countries, the open hearth nevertheless accounts for about one-sixth of all steel produced worldwide. The open-hearth furnace (OHF) uses the heat of combustion of gaseous or liquid fuels to convert a charge of scrap and liquid blast-furnace iron to ...

Open-hearth process - Oxford Reference

open-hearth process Source: A Dictionary of Physics. A traditional method for manufacturing steel by heating together scrap, pig iron, hot metal, etc., in a refractory-lined shallow open ...

The steel story

Their process was known as the Siemens-Martin process, and the furnace as an 'open-hearth' furnace, in which excess carbon and other impurities are burnt out of pig iron to produce steel. The open hearth process overcame the insufficient temperatures generated by normal fuels and furnaces, enabling steel to be produced in bulk for the first time.

Introduction to Iron and Steel - Texas A&M University

Introduction to Iron and Steel A few definitions and general descriptions are in order Pig iron: Raw iron, the immediate ... Types of steel used in manufacturing construction equipment A36 plate at Lafarge Cement Plant, Seattle. ... steel) to refined steel Open hearth …

Steel - Manufacturing Processes - Oxygen, Ingot, Hearth ...

From 1909 until the 1960s, the open-hearth process was the most popular method of steel production. Open-hearth furnaces got their name from a shallow area called a hearth that is exposed to a blast of flames that alternately sweeps across the hearth from one …

Bessemer process - Wikipedia

The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace.The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron. The oxidation also raises the temperature of the iron mass and keeps it molten.

Pig Iron Manufacturing Process

It was found that pig steel produced by the electric shaft furnace was more suitable for steel making in the open-hearth than ordinary pig iron, and required less time for complete refining. Normal pig iron made in the electric furnace was found to be less suited to the production of open-hearth steel than normal blast-furnace pig iron.

Steel Manufacturing Process Explored: Bessemer, Open ...

There are basically many different steel manufacturing processes like cementation, crucible, Bessemer, open-hearth and electric process. All have their own importance and are employed to produce the required type of steel alloy. The article presents a comprehensive explanation regarding all the above mentioned process.


©2002 John Wiley & Sons, Inc. M. P. Groover, "Fundamentals of Modern Manufacturing 2/e" Direct Fuel-Fired Furnaces Small open-hearth in which charge is heated by natural gas fuel burners located on side of furnace •Furnace roof assists heating action by reflecting flame down against charge •At bottom of hearth is a tap hole to release ...

Bessemer And Open Hearth Process |authorSTREAM

Mar 29, 2013· Bessemer And Open Hearth Process - authorSTREAM Presentation. PowerPoint Presentation: heavy scrap, such as building, construction or steel milling scrap is added, together with pig iron from blast furnaces.

Describe the open hearth process of steel manufacture ...

Describe the open hearth process of steel manufacture. What is meant by acid steel and basic steel? In the open hearth process a broad shallow furnace is used to support the charge of pig iron and scrap steel. Pig iron content of the charge may constitute 25% to 75%of the total, which may

The Making of Iron & Steel - SEAISI

Originally most steel was produced by the "Bessemer" and "open hearth" processes but these have been replaced by the more modern "basic oxygen steelmaking" (BOS) and "electric arc furnace" (EAF) processes. The BOS process uses pure oxygen, injected by a lance, for refining the relatively impure hot metal (and scrap is used for temperature control).

Manufacture of Steel by Bessemer Process - YouTube

Mar 14, 2013· Steel, Classification of Steel & Manufacturing of Steel Open hearth Process - Duration: 18:23. Punjab Group Of Colleges 17,183 views. 18:23. Why Concrete Needs Reinforcement - …

Steel Slag - Material Description - User Guidelines for ...

Virtually all steel is now made in integrated steel plants using a version of the basic oxygen process or in specialty steel plants (mini-mills) using an electric arc furnace process. The open hearth furnace process is no longer used. In the basic oxygen process, hot liquid blast furnace metal, scrap, and fluxes, which consist of lime (CaO) and ...

Steel manufacture -

In the process, a ladle of steel is brought to the continuous casting plant by overhead crane and after pre-treatment, which may involve stirring by the injection of an inert gas (argon), the open mouth of the ladle is covered by an insulating lid to reduce heat loss. The whole unit is …

Presentation steel making - SlideShare

Sep 05, 2015· Open hearth process • The open hearth process is a batch process and a batch is called a "heat". Heavy scrap, such as building, construction or steel milling scrap is added, together with pig iron from blast furnaces. • This process was known as the Siemens-Martin process, and the furnace as an "open-hearth" furnace 10.

Open-hearth process | metallurgy |

Open-hearth process, steelmaking technique that for most of the 20th century accounted for the major part of all steel made in the world. William Siemens, a German living in England in the 1860s, seeking a means of increasing the temperature in a metallurgical furnace, resurrected an old proposal.


production of steel in converters. 1855 – Henry Bessemer patented technology of production of steel by blowing air into molten pig iron through tuyeres in the bottom of a converter with acid lining. Content of Si in pig iron and silicon dioxide in slag were determining parts of the process. During

Basic oxygen steelmaking - Wikipedia

Basic oxygen steelmaking (BOS, BOP, BOF, or OSM), also known as Linz–Donawitz-steelmaking or the oxygen converter process is a method of primary steelmaking in which carbon-rich molten pig iron is made into steel. Blowing oxygen through molten pig iron lowers the carbon content of the alloy and changes it into low-carbon steel.

Stainless Steel Pipe and Tube Manufacturing Process

Pearlite steel is one of the leading Stainless Steel Pipe manufacturer in India. We provide services to oil and gas, pipeline, food processing, automobile and other manufacturing industries worldwide Our state of art manufacturing unit is capable of producing wide range and dimensions of stainless steel …

12.5 Iron And Steel Production Steelmaking Process — Open Hearth Furnaces - The open hearth furnace (OHF) is a shallow, refractory-lined basin in which scrap and molten iron are melted and refined into steel. Scrap is charged to the furnace through doors in the furnace front. Hot metal from the blast furnace is added by pouring from a ladle through a trough positioned

Steel Making: Lecture open hearth furnace

Mar 16, 2016· This provides adverse effects and makes the steel unsuitable for most application such as deep drawing purpose. Comparison between Bessemer and Open Hearth Process: S.No Bessemer Process Open Hearth Process 1. Alone scrap iron cannot be used. Alone scrap iron can be used. 2. Refining and finishing requires 10 to 20 minutes.

UDC 666 . 7 Historical Overview of Refractory Technology ...

(iv) Open hearth furnace, a reverberatory furnace for steel produc-tion employing regenerative heat exchangers to utilize its own Fig. 1 Typical lining design of charcoal-fired blast furnace (16th-17th century) Fig. 2 Furnace make-up of typical integrated steelwoks in the latter Industrial Revolution Era