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Steel Making

Temperature For Annealing
Theoretically, annealing should be accomplished at a tempera...

Application To The Automotive Industry
The information given on the various parts of the Liberty eng...

Ebbw Vale And The Bessemer Process
After his British Association address in August 1856, Besseme...

Carbon In Tool Steel
Carbon tool steel, or tool steel as it is commonly called, us...

Heat-treating Department
The heat-treating department occupies an L-shaped building. ...

Effect Of Different Carburizing Material
[Illustrations: FIGS. 33 to 37.] Each of these different p...

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

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

Sulphur
SULPHUR is another element (symbol S) which is always found i...

Steel For Chisels And Punches
The highest grades of carbon or tempering steels are to be re...

Plant For Forging Rifle Barrels
The forging of rifle barrels in large quantities and heat-tre...

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

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

Pyrometers
Armor plate makers sometimes use the copper ball or Siemens' ...

Care In Annealing
Not only will benefits in machining be found by careful anne...

Tool Or Crucible Steel
Crucible steel can be annealed either in muffled furnace or b...

Cutting-off Steel From Bar
To cut a piece from an annealed bar, cut off with a hack saw,...

S A E Heat Treatments
The Society of Automotive Engineers have adopted certain heat...

Gas Consumption For Carburizing
Although the advantages offered by the gas-fired furnace for ...

High-carbon Machinery Steel
The carbon content of this steel is above 30 points and is ha...



Affinity Of Nickel Steel For Carbon






Category: HEAT TREATMENT OF STEEL

The carbon- and nickel-steel
gears are carburized separately owing to the difference in time
necessary for their carburization. Practically all printed information
on the subject is to the effect that nickel steel takes longer to
carburize than plain carbon steel. This is directly opposed to
the conditions found at this plant. For the same depth of case,
other conditions being equal, a nickel-steel gear would require
from 20 to 30 min. less than a low carbon-steel gear.

From the quenching machines, the gears go to the sand-blasting
machines, situated in the wing of the heat-treating building, where
they are cleaned. From here they are taken to the testing department.
The tests are simple and at the same time most thorough.





Next: Testing And Inspection Of Heat Treatment

Previous: The Effect



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