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Steel Making

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

The Effect Of Tempering On Water-quenched Gages
The following information has been supplied by Automatic and ...

Corrosion
This steel like any other steel when distorted by cold worki...

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

Critical Points
One of the most important means of investigating the properti...

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

The Pyrometer And Its Use
In the heat treatment of steel, it has become absolutely nece...

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

For Milling Cutters And Formed Tools
FORGING.--Forge as before.--ANNEALING.--Place the steel in a ...

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

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

Protectors For Thermo-couples
Thermo-couples must be protected from the danger of mechanica...

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

Forging High-speed Steel
Heat very slowly and carefully to from 1,800 to 2,000 deg.F....

Correction By Zero Adjustment
Many pyrometers are supplied with a zero adjuster, by means ...

Double Annealing
Water annealing consists in heating the piece, allowing it to...

Phosphorus
PHOSPHORUS is an element (symbol P) which enters the metal fr...

Vanadium
Vanadium has a very marked effect upon alloy steels rich in c...

Complete Calibration Of Pyrometers
For the complete calibration of a thermo-couple of unknown e...

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



Blending The Compound






Category: HEAT TREATMENT OF STEEL

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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