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Steel Making

Molybdenum
Molybdenum steels have been made commercially for twenty-five...

Cyanide Bath For Tool Steels
All high-carbon tool steels are heated in a cyanide bath. Wi...

Pyrometry And Pyrometers
A knowledge of the fundamental principles of pyrometry, or th...

Placing Of Pyrometers
When installing a pyrometer, care should be taken that it re...

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

The Quenching Tank
The quenching tank is an important feature of apparatus in c...

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

Correction By Zero Adjustment
Many pyrometers are supplied with a zero adjuster, by means ...

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

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

Impact Tests
Impact tests are of considerable importance as an indication ...

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

Surface Carburizing
Carburizing, commonly called case-hardening, is the art of pr...

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

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

Silicon
Silicon prevents, to a large extent, defects such as gas bubb...

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

Lathe And Planer Tools
FORGING.--Gently warm the steel to remove any chill, is parti...

Annealing Work
With the exception of several of the higher types of alloy s...

Preventing Cracks In Hardening
The blacksmith in the small shop, where equipment is usually ...



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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