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Steel Making

Affinity Of Nickel Steel For Carbon
The carbon- and nickel-steel gears are carburized separately...

Steel Before The 1850's
In spite of a rapid increase in the use of machines and the ...

Conclusions
Martien was probably never a serious contender for the honor ...

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

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

Instructions For Working High-speed Steel
Owing to the wide variations in the composition of high-speed...

Heating
Although it is possible to work steels cold, to an extent de...

Carburizing By Gas
The process of carburizing by gas, briefly mentioned on page ...

Composition And Properties Of Steel
It is a remarkable fact that one can look through a dozen tex...

Carbon-steel Forgings
Low-stressed, carbon-steel forgings include such parts as car...

Heat Treatment Of Lathe Planer And Similar Tools
FIRE.--For these tools a good fire is one made of hard foundr...

Properties Of Steel
Steels are known by certain tests. Early tests were more or l...

Effects Of Proper Annealing
Proper annealing of low-carbon steels causes a complete solu...

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

Drop Forging Dies
The kind of steel used in the die of course influences the he...

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

Hardening High-speed Steel
In forging use coke for fuel in the forge. Heat steel slowly ...

Separating The Work From The Compound
During the pulling of the heat, the pots are dumped upon a ca...

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

Properties Of Alloy Steels
The following table shows the percentages of carbon, manganes...



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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