Emigrants.ca - explore the largely untold story of the emigrants who came to Canada to settle. Explore the Canadian emigrant's perspective as they leave their homeland and settle this large mass of land. Visit Emigrants.caInformational Site Network Informational
Privacy
   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

The Leeds And Northrup Potentiometer System
The potentiometer pyrometer system is both flexible and subst...

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

High Speed Steel
For centuries the secret art of making tool steel was handed ...

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

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

Annealing Of Rifle Components At Springfield Armory
In general, all forgings of the components of the arms manufa...

Preventing Cracks In Hardening
The blacksmith in the small shop, where equipment is usually ...

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

The Modern Hardening Room
A hardening room of today means a very different place from ...

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...

The Penetration Of Carbon
Carburized mild steel is used to a great extent in the manufa...

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

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

Tool Or Crucible Steel
Crucible steel can be annealed either in muffled furnace or b...

The Influence Of Size
The size of the piece influences the physical properties obta...

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

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

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

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



Separating The Work From The Compound






Category: CASE-HARDENING OR SURFACE-CARBURIZING

During the pulling of the heat, the pots are dumped upon a cast-iron
screen which forms a table or apron for the furnace. Directly beneath
this table is located one of the steel conveyor carts, shown in Fig.
43, which is provided with two wheels at the rear and a dolly clevis
at the front, which allows it to be hauled away from beneath the
furnace apron while filled with red-hot compound. A steel cover is
provided for each box, and the material is allowed to cool without
losing much of the evolved gases which are still being thrown off
by the compound.




As this compound comes from the carburizing pots it contains bits
of fireclay which represent a part of the luting used for sealing,
and there may be small parts of work or bits of fused material
in it as well. After cooling, the compound is very dusty and
disagreeable to handle, and, before it can be used again, must be
sifted, cleaned and blended.

Some time ago the writer was confronted with this proposition for
one of the largest consumers of carburizing compound in the world,
and the problem was handled in the following manner: The cooled
compound was dumped from the cooling cars and sprinkled with a
low-grade oil which served the dual purposes of settling the dust
and adding a certain percentage of valuable hydrocarbon to the
compound. In Fig. 44 is shown the machine that was designed to do
the cleaning and blending.





Next: Blending The Compound

Previous: The Care Of Carburizing Compounds



Add to del.icio.us Add to Reddit Add to Digg Add to Del.icio.us Add to Google Add to Twitter Add to Stumble Upon
Add to Informational Site Network
Report
Privacy
SHAREADD TO EBOOK


Viewed 3152