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Steel Making

Tempering Colors On Carbon Steels
Opinions differ as to the temperature which is indicated by t...

Annealing In Bone
Steel and cast iron may both be annealed in granulated bone. ...

Open Hearth Process
The open hearth furnace consists of a big brick room with a l...

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

Carbon-steel Forgings
Low-stressed, carbon-steel forgings include such parts as car...

Effect Of Different Carburizing Material
[Illustrations: FIGS. 33 to 37.] Each of these different p...

Hints For Tool Steel Users
Do not hesitate to ask for information from the maker as to t...

Hardening Operation
Hardening a gear is accomplished as follows: The gear is tak...

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

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

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

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

Alloying Elements
Commercial steels of even the simplest types are therefore p...

Annealing Of Rifle Components At Springfield Armory
In general, all forgings of the components of the arms manufa...

Carbon In Tool Steel
Carbon tool steel, or tool steel as it is commonly called, us...

Heating Of Manganese Steel
Another form of heat-treating furnace is that which is used ...

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

Tungsten, as an alloy in steel, has been known and used for a...

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

Quenching Tool Steel
To secure proper hardness, the cooling of quenching of steel ...

Blending The Compound


Essentially, this consists of the sturdy, power-driven separator
and fanning mill which separates the foreign matter from the compound
and elevates it into a large settling basin which is formed by
the top of the steel housing that incloses the apparatus. After
reaching the settling basin, the compound falls by gravity into
a power-driven rotary mixing tub which is directly beneath the
settling basin. Here the blending is done by mixing the proper
amount of various grades of material together. After blending the
compound, it is ready to be stored in labeled containers and delivered
to the packing room.

It will be seen that by this simple system there is the least possible
loss of energy from the compound. The saving commences the moment
the cooling cart is covered and preserves the valuable dust which is
saved by the oiling and the settling basin of the blending machine.

Then, too, there is the added convenience of the packers who have
a thoroughly cleaned, dustless, and standardized product to work
with. Of course, this also tends to insure uniformity in the
case-hardening operation.

With this outfit, one man cleans and blends as much compound in
one hour as he formerly did in ten.

Next: Heat Treatment Of Steel

Previous: Separating The Work From The Compound

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