The names given to the various lines of a tooth on a gear-wheel are as follows: In Figure 233, A is the face and B the flank of a tooth, while C is the point, and D the root of the tooth; E is the height or depth, and F the breadth. P P is the ... Read more of Drawing Gear Wheels at How to Draw.caInformational Site Network Informational
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Steel Making

Heat Treatment Of Steel
Heat treatment consists in heating and cooling metal at defin...

Testing And Inspection Of Heat Treatment
The hard parts of the gear must be so hard that a new mill f...

Non-shrinking Oil-hardening Steels
Certain steels have a very low rate of expansion and contract...

Carbon-steel Forgings
Low-stressed, carbon-steel forgings include such parts as car...

Quality And Structure
The quality of high-speed steel is dependent to a very great ...

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

Plant For Forging Rifle Barrels
The forging of rifle barrels in large quantities and heat-tre...

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

Piston Pin
The piston pin on an aviation engine must possess maximum res...

Detrimental Elements
Sulphur and phosphorus are two elements known to be detrimen...

Heat Treatment Of Milling Cutters Drills Reamers Etc
THE FIRE.--Gas and electric furnaces designed for high heats ...

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

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

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

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

The Electric Process
The fourth method of manufacturing steel is by the electric f...

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

A Satisfactory Luting Mixture
A mixture of fireclay and sand will be found very satisfactor...

Hardening
Steel is hardened by quenching from above the upper critical....

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



Phosphorus






Category: COMPOSITION AND PROPERTIES OF STEEL

PHOSPHORUS is an element (symbol P) which enters the metal from
the ore. It remains in the steel when made by the so-called acid
process, but it can be easily eliminated down to 0.06 per cent
in the basic process. In fact the discovery of the basic process
was necessary before the huge iron deposits of Belgium and the
Franco-German border could be used. These ores contain several
per cent phosphorus, and made a very brittle steel (cold short)
until basic furnaces were used. Basic furnaces allow the formation
of a slag high in lime, which takes practically all the phosphorus
out of the metal. Not only is the resulting metal usable, but the
slag makes a very excellent fertilizer, and is in good demand.





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Previous: Sulphur



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