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Steel Making

Shrinking And Enlarging Work
Steel can be shrunk or enlarged by proper heating and cooling...

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

Robert Mushet
Robert (Forester) Mushet (1811-1891), born in the Forest of D...

Annealing Of High-speed Steel
For annealing high-speed steel, some makers recommend using g...

Oil-hardening Steel
Heat slowly and uniformly to 1,450 deg.F. and forge thorough...

Air-hardening Steels
These steels are recommended for boring, turning and planing...

Nickel
Nickel may be considered as the toughest among the non-rare a...

The Pyrometer And Its Use
In the heat treatment of steel, it has become absolutely nece...

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

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

Tensile Properties
Strength of a metal is usually expressed in the number of pou...

Heat Treatment Of Gear Blanks
This section is based on a paper read before the American Gea...

Detrimental Elements
Sulphur and phosphorus are two elements known to be detrimen...

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

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

Correction For Cold-junction Errors
The voltage generated by a thermo-couple of an electric pyrom...

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

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

Annealing
ANNEALING can be done by heating to temperatures ranging from...

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



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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