VIEW THE MOBILE VERSION of www.steelmaking.ca Informational Site Network Informational
Privacy
   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

Oil-hardening Steel
Heat slowly and uniformly to 1,450 deg.F. and forge thorough...

The Influence Of Size
The size of the piece influences the physical properties obta...

Annealing To Relieve Internal Stresses
Work quenched from a high temperature and not afterward tempe...

High Speed Steel
For centuries the secret art of making tool steel was handed ...

Flange Shields For Furnaces
Such portable flame shields as the one illustrated in Fig. 1...

Silicon
Silicon prevents, to a large extent, defects such as gas bubb...

Bessemer Process
The bessemer process consists of charging molten pig iron int...

Short Method Of Treatment
In the new method, the packed pots are run into the case-har...

The Penetration Of Carbon
Carburized mild steel is used to a great extent in the manufa...

Hardening
The forgings can be hardened by cooling in still air or quen...

Making Steel Balls
Steel balls are made from rods or coils according to size, st...

Surface Carburizing
Carburizing, commonly called case-hardening, is the art of pr...

Robert Mushet
Robert (Forester) Mushet (1811-1891), born in the Forest of D...

Leeds And Northrup Optical Pyrometer
The principles of this very popular method of measuring tempe...

Preventing Decarbonization Of Tool Steel
It is especially important to prevent decarbonization in such...

Quenching The Work
In some operations case-hardened work is quenched from the bo...

Quenching
It is considered good practice to quench alloy steels from th...

The Thermo-couple
With the application of the thermo-couple, the measurement of...

Using Illuminating Gas
The choice of a carburizing furnace depends greatly on the fa...

Carbon Steels For Different Tools
All users of tool steels should carefully study the different...



Bessemer Process






Category: STEEL MAKING

The bessemer process consists of charging molten pig iron into
a huge, brick-lined pot called the bessemer converter, and then
in blowing a current of air through holes in the bottom of the
vessel into the liquid metal.

The air blast burns the white hot metal, and the temperature increases.
The action is exactly similar to what happens in a fire box under
forced draft. And in both cases some parts of the material burn
easier and more quickly than others. Thus it is that some of the
impurities in the pig iron--including the carbon--burn first, and
if the blast is shut off when they are gone but little of the iron
is destroyed. Unfortunately sulphur, one of the most dangerous
impurities, is not expelled in the process.

A bessemer converter is shown in Fig. 1, while Fig. 2 shows the
details of its construction. This shows how the air blast is forced
in from one side, through the trunnion, and up through the metal.
Where the steel is finished the converter is tilted, or swung on
its trunnions, the blast turned off, and the steel poured out of
the top.





Next: Open Hearth Process




Add to del.icio.us Add to Reddit Add to Digg Add to Del.icio.us Add to Google Add to Twitter Add to Stumble Upon
Add to Informational Site Network
Report
Privacy
SHAREADD TO EBOOK


Viewed 4833