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Steel Making

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

Classifications Of Steel
Among makers and sellers, carbon tool-steels are classed by g...

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

Reheating for machine ability was done at 100 deg. less than ...

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

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

Annealing To Relieve Internal Stresses
Work quenched from a high temperature and not afterward tempe...

The Care Of Carburizing Compounds
Of all the opportunities for practicing economy in the heat-t...

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

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

Preventing Carburizing By Copper-plating
Copper-plating has been found effective and must have a thick...

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

Calibration Of Pyrometer With Common Salt
An easy and convenient method for standardization and one whi...

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

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

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

Separating The Work From The Compound
During the pulling of the heat, the pots are dumped upon a ca...

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

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

SULPHUR is another element (symbol S) which is always found i...

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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