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Steel Making

Quenching
It is considered good practice to quench alloy steels from th...

Liberty Motor Connecting Rods
The requirements for materials for the Liberty motor connecti...

Pyrometers For Molten Metal
Pyrometers for molten metal are connected to portable thermoc...

An Automatic Temperature Control Pyrometer
Automatic temperature control instruments are similar to the ...

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

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

Placing The Thermo-couples
The following illustrations from the Taylor Instrument Compan...

Protectors For Thermo-couples
Thermo-couples must be protected from the danger of mechanica...

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

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

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

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

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

Using Illuminating Gas
The choice of a carburizing furnace depends greatly on the fa...

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

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

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

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

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

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



Annealing In Bone






Category: ANNEALING

Steel and cast iron may both be annealed in granulated bone. Pack the
work the same as for case-hardening except that it is not necessary
to keep the pieces away from each other. Pack with bone that has
been used until it is nearly white. Heat as hot as necessary for
the steel and let the furnace cool down. If the boxes are removed
from furnace while still warm, cover boxes and all in warm ashes
or sand, air slaked lime or old, burned bone to retain heat as
long as possible. Do not remove work from boxes until cold.





Next: Annealing Of Rifle Components At Springfield Armory

Previous: High-carbon Machinery Steel



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