The Star of Venus is very difficult, and not well to be calculated, as all Mathematicians and Astronomers will bear me witness; for its course is found to be otherwise than that of the other six Planets, and therefore its Birth is otherwise; ... Read more of Of The Spirit Of Copper at Occultism.caInformational Site Network Informational
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Annealing Of High-speed Steel
For annealing high-speed steel, some makers recommend using g...

A combination of the characteristics of nickel and the charac...

It is considered good practice to quench alloy steels from th...

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

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

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

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

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

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

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

Heat Treatment Of Punches And Dies Shears Taps Etc
HEATING.--The degree to which tools of the above classes shou...

Hardening High-speed Steels
We will now take up the matter of hardening high-speed steels...

Martien was probably never a serious contender for the honor ...

Reheating for machine ability was done at 100 deg. less than ...

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

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

MANGANESE is a metal much like iron. Its chemical symbol is M...

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

Bessemer Process
The bessemer process consists of charging molten pig iron int...

Restoring Overheated Steel
The effect of heat treatment on overheated steel is shown gra...

The Penetration Of Carbon


Carburized mild steel is used to a great extent in the manufacture
of automobile and other parts which are likely to be subjected to
rough usage. The strength and ability to withstand hard knocks
depend to a very considerable degree on the thoroughness with which
the carburizing process is conducted.

Many automobile manufacturers have at one time or another passed
through a period of unfortunate breakages, or have found that for
a certain period the parts turned out of their hardening shops
were not sufficiently hard to enable the rubbing surfaces to stand
up against the pressure to which they were subjected.

So many factors govern the success of hardening that often this
succession of bad work has been actually overcome without those
interested realizing what was the weak point in their system of
treatment. As the question is one that can create a bad reputation
for the product of any firm it is well to study the influential
factors minutely.

Next: Introduction Of Carbon

Previous: Preparing Parts For Local Case-hardening

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