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Steel Making

Annealing
There is no mystery or secret about the proper annealing of d...

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

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

Short Method Of Treatment
In the new method, the packed pots are run into the case-har...

Critical Points
One of the most important means of investigating the properti...

Sulphur
Sulphur is another impurity and high sulphur is even a greate...

Ebbw Vale And The Bessemer Process
After his British Association address in August 1856, Besseme...

Effect Of A Small Amount Of Copper In Medium-carbon Steel
This shows the result of tests by C. R. Hayward and A. B. Joh...

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

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

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

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

Judging The Heat Of Steel
While the use of a pyrometer is of course the only way to hav...

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

Hardening Carbon Steel For Tools
For years the toolmaker had full sway in regard to make of st...

The Leeds And Northrup Potentiometer System
The potentiometer pyrometer system is both flexible and subst...

Silicon
SILICON is a very widespread element (symbol Si), being an es...

Rate Of Absorption
According to Guillet, the absorption of carbon is favored by ...

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

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



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.





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