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

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

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

Testing And Inspection Of Heat Treatment
The hard parts of the gear must be so hard that a new mill f...

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

Standard Analysis
The selection of a standard analysis by the manufacturer is t...

Heat-treating Equipment And Methods For Mass Production
The heat-treating department of the Brown-Lipe-Chapin Company...

Phosphorus
Phosphorus is one of the impurities in steel, and it has been...

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

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

Chrome-nickel Steel
Forging heat of chrome-nickel steel depends very largely on ...

Annealing Alloy Steel
The term alloy steel, from the steel maker's point of view, r...

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

Steel Worked In Austenitic State
As a general rule steel should be worked when it is in the a...

Crucible Steel
Crucible steel is still made by melting material in a clay or...

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

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

Take Time For Hardening
Uneven heating and poor quenching has caused loss of many ve...

Fatigue Tests
It has been known for fifty years that a beam or rod would fa...

Affinity Of Nickel Steel For Carbon
The carbon- and nickel-steel gears are carburized separately...



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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Previous: High-carbon Machinery Steel



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