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Steel Making

Armor plate makers sometimes use the copper ball or Siemens' ...

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

A Chromium-cobalt Steel
The Latrobe Steel Company make a high-speed steel without tun...

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

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

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...

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

The Forging Of Steel
So much depends upon the forging of steel that this operation...

Steel Can Be Worked Cold
As noted above, steel can be worked cold, as in the case of ...

Carburizing Material
The simplest carburizing substance is charcoal. It is also th...

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

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

Temperature For Annealing
Theoretically, annealing should be accomplished at a tempera...

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

The material used for all gears on the Liberty engine was sel...

High-chromium Or Rust-proof Steel
High-chromium, or what is called stainless steel containing f...

An Automatic Temperature Control Pyrometer
Automatic temperature control instruments are similar to the ...

Tempering Round Dies
A number of circular dies of carbon tool steel for use in too...

S A E Heat Treatments
The Society of Automotive Engineers have adopted certain heat...

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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