There was once a little girl who was very, very poor. Her father and mother had died, and at last she had no little room to stay in, and no little bed to sleep in, and nothing more to eat except one piece of bread. So she said a prayer, put on ... Read more of THE STAR DOLLARS at Children Stories.caInformational Site Network Informational
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Steel Making

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

Impact Tests
Impact tests are of considerable importance as an indication ...

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

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

Steel Worked In Austenitic State
As a general rule steel should be worked when it is in the a...

Surface Carburizing
Carburizing, commonly called case-hardening, is the art of pr...

Annealing Method
Forgings which are too hard to machine are put in pots with ...

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

Heavy Forging Practice
In heavy forging practice where the metal is being worked at...

Chrome-nickel Steel
Forging heat of chrome-nickel steel depends very largely on ...

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

Compensating Leads
By the use of compensating leads, formed of the same materia...

Nickel may be considered as the toughest among the non-rare a...

Properties Of Alloy Steels
The following table shows the percentages of carbon, manganes...

Hardening Carbon Steel For Tools
For years the toolmaker had full sway in regard to make of st...

Steel Can Be Worked Cold
As noted above, steel can be worked cold, as in the case of ...

The Forging Of Steel
So much depends upon the forging of steel that this operation...

Blending The Compound
Essentially, this consists of the sturdy, power-driven separa...

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

Carbon Tool Steel
Heat to a bright red, about 1,500 to 1,550 deg.F. Do not ham...

Pickling The Forgings


The forgings were then pickled in a hot solution of either niter
cake or sulphuric acid and water at a temperature of 170 deg.F., and
using a solution of about 25 per cent. The solution was maintained
at a constant point by taking hydrometer readings two or three
times a day, maintaining a reading of about 1.175. Sixty forked or
one hundred single rods were placed in wooden racks and immersed
in a lead-lined vat 30 by 30 by 5 ft. long. The rack was lowered
or lifted by means of an air hoist and the rods were allowed to
stay in solution from 1/2 to 1 hr., depending on the amount of
scale. The rods were then swung and lowered in the rack into running
hot water until all trace of the acid was removed.

The rod was finally subjected to Brinell test. This shows whether
or not the rod has been heat-treated to the proper hardness. If
the rods did not read between 241 and 277, they were re-treated
until the proper hardness is obtained.

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