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Steel Making

Classifications Of Steel
Among makers and sellers, carbon tool-steels are classed by g...

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

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

Hints For Tool Steel Users
Do not hesitate to ask for information from the maker as to t...

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

Compensating Leads
By the use of compensating leads, formed of the same materia...

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

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

The Electric Process
The fourth method of manufacturing steel is by the electric f...

Optical System And Electrical Circuit Of The Leeds & Northrup Optical Pyrometer
For extremely high temperature, the optical pyrometer is lar...

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

Process Of Carburizing
Carburizing imparts a shell of high-carbon content to a low-...

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

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

Furnace Data
In order to give definite information concerning furnaces, fu...

Blending The Compound
Essentially, this consists of the sturdy, power-driven separa...

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

Protective Screens For Furnaces
Workmen needlessly exposed to the flames, heat and glare from...

Carbon Tool Steel
Heat to a bright red, about 1,500 to 1,550 deg.F. Do not ham...

Heat Treatment Of Punches And Dies Shears Taps Etc
HEATING.--The degree to which tools of the above classes shou...



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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