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Steel Making

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

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

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

Heat-treating Equipment And Methods For Mass Production
The heat-treating department of the Brown-Lipe-Chapin Company...

Annealing Work
With the exception of several of the higher types of alloy s...

Heat Treatment Of Lathe Planer And Similar Tools
FIRE.--For these tools a good fire is one made of hard foundr...

Hardness Testing
The word hardness is used to express various properties of me...

Standard Analysis
The selection of a standard analysis by the manufacturer is t...

Heat Treatment Of Axles
Parts of this general type should be heat-treated to show the...

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

Manganese adds considerably to the tensile strength of steel,...

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

Ebbw Vale And The Bessemer Process
After his British Association address in August 1856, Besseme...

Temperatures To Use
As soon as the temperature of the steel reaches 100 deg.C. (...

Cyanide Bath For Tool Steels
All high-carbon tool steels are heated in a cyanide bath. Wi...

The crankshaft was the most highly stressed part of the entir...

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

Protective Screens For Furnaces
Workmen needlessly exposed to the flames, heat and glare from...

Quenching The Work
In some operations case-hardened work is quenched from the bo...

Optical System And Electrical Circuit Of The Leeds & Northrup Optical Pyrometer
For extremely high temperature, the optical pyrometer is lar...

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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