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Steel Making

Carburizing By Gas
The process of carburizing by gas, briefly mentioned on page ...

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

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

Short Method Of Treatment
In the new method, the packed pots are run into the case-har...

Temperature Recording And Regulation
Each furnace is equipped with pyrometers, but the reading an...

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

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

Take Time For Hardening
Uneven heating and poor quenching has caused loss of many ve...

William Kelly's Air-boiling Process
An account of Bessemer's address to the British Association w...

Annealing In Bone
Steel and cast iron may both be annealed in granulated bone. ...

The Quenching Tank
The quenching tank is an important feature of apparatus in c...

Suggestions For Handling High-speed Steels
The following suggestions for handling high-speed steels are ...

Composition Of Transmission-gear Steel
If the nickel content of this steel is eliminated, and the pe...

Cutting-off Steel From Bar
To cut a piece from an annealed bar, cut off with a hack saw,...

There is no mystery or secret about the proper annealing of d...

Steel Before The 1850's
In spite of a rapid increase in the use of machines and the ...

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

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

Quenching Tool Steel
To secure proper hardness, the cooling of quenching of steel ...

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

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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