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Steel Making

Annealing Of Rifle Components At Springfield Armory
In general, all forgings of the components of the arms manufa...

Refining The Grain
This is remedied by reheating the piece to a temperature slig...

Heat Treatment Of Steel
Heat treatment consists in heating and cooling metal at defin...

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

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

Steel Can Be Worked Cold
As noted above, steel can be worked cold, as in the case of ...

The Effect Of Tempering On Water-quenched Gages
The following information has been supplied by Automatic and ...

Application Of Liberty Engine Materials To The Automotive Industry
The success of the Liberty engine program was an engineer...

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

Crankshaft
The crankshaft was the most highly stressed part of the entir...

Temperature Recording And Regulation
Each furnace is equipped with pyrometers, but the reading an...

Carburizing Low-carbon Sleeves
Low-carbon sleeves are carburized and pushed on malleable-ir...

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

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

Highly Stressed Parts
The highly stressed parts on the Liberty engine consisted of ...

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

Vanadium
Vanadium has a very marked effect upon alloy steels rich in c...

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

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

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



The Effect






Category: HEAT TREATMENT OF STEEL

The heating at 1,600 deg.F. gives the first heat treatment
which refines the core, which under the former high heat (1,700 deg.F.)
was rendered coarsely crystalline. All the gears, including the
scrap gears, are quenched direct from the pot in this manner.

The gears then go to the reheating furnaces, situated in front of
a battery of Gleason quenching machines. These furnaces accommodate
from 12 to 16 crown gears. The carbon-steel gears are heated in a
reducing atmosphere to about 1,425 deg.F. (depending on the carbon
content) placed in the dies in the Gleason quenching machine, and
quenched between dies in mineral oil at less than 100 deg.F. The test
gear receives exactly the same treatment as the others and is then
broken, giving a record of the condition of both case and core.





Next: Affinity Of Nickel Steel For Carbon

Previous: Short Method Of Treatment



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