To dream of a waterfall, foretells that you will secure your wildest desire,and fortune will be exceedingly favorable to your progress.... Read more of Waterfall at My Dreams.caInformational Site Network Informational
   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

Brown Automatic Signaling Pyrometer
In large heat-treating plants it has been customary to mainta...

Air-hardening Steels
These steels are recommended for boring, turning and planing...

Piston Pin
The piston pin on an aviation engine must possess maximum res...

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

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

Heating Of Manganese Steel
Another form of heat-treating furnace is that which is used ...

Preventing Cracks In Hardening
The blacksmith in the small shop, where equipment is usually ...

Annealing Method
Forgings which are too hard to machine are put in pots with ...

Preparing Parts For Local Case-hardening
At the works of the Dayton Engineering Laboratories Company, ...

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

Suggestions For Handling High-speed Steels
The following suggestions for handling high-speed steels are ...

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

Calibration Of Pyrometer With Common Salt
An easy and convenient method for standardization and one whi...

Heavy Forging Practice
In heavy forging practice where the metal is being worked at...

Effect Of A Small Amount Of Copper In Medium-carbon Steel
This shows the result of tests by C. R. Hayward and A. B. Joh...

Connecting Rods
The material used for all connecting rods on the Liberty engi...

Non-shrinking Oil-hardening Steels
Certain steels have a very low rate of expansion and contract...

High-chromium Or Rust-proof Steel
High-chromium, or what is called stainless steel containing f...

Molybdenum steels have been made commercially for twenty-five...

Heat Treatment Of Axles
Parts of this general type should be heat-treated to show the...

Bessemer Process


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 Add to Reddit Add to Digg Add to Add to Google Add to Twitter Add to Stumble Upon
Add to Informational Site Network

Viewed 5153