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Steel Making

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

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

Heat Treatment Of Steel
Heat treatment consists in heating and cooling metal at defin...

The Packing Department
In Fig. 56 is shown the packing pots where the work is packe...

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

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

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

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

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...

Using Illuminating Gas
The choice of a carburizing furnace depends greatly on the fa...

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

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...

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

Preparing Parts For Local Case-hardening
At the works of the Dayton Engineering Laboratories Company, ...

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

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

Heat-treating Department
The heat-treating department occupies an L-shaped building. ...

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

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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