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Steel Making

Preventing Carburizing By Copper-plating
Copper-plating has been found effective and must have a thick...

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

Steel For Chisels And Punches
The highest grades of carbon or tempering steels are to be re...

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

The Care Of Carburizing Compounds
Of all the opportunities for practicing economy in the heat-t...

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

High-carbon Machinery Steel
The carbon content of this steel is above 30 points and is ha...

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

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

Affinity Of Nickel Steel For Carbon
The carbon- and nickel-steel gears are carburized separately...

Heat-treating Equipment And Methods For Mass Production
The heat-treating department of the Brown-Lipe-Chapin Company...

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

Carburizing Material
The simplest carburizing substance is charcoal. It is also th...

Hardening Operation
Hardening a gear is accomplished as follows: The gear is tak...

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

Protectors For Thermo-couples
Thermo-couples must be protected from the danger of mechanica...

Tungsten
Tungsten, as an alloy in steel, has been known and used for a...

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

Gears
The material used for all gears on the Liberty engine was sel...

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



Heat Treatment Of Steel






Category: HEAT TREATMENT OF STEEL

Heat treatment consists in heating and cooling metal at definite
rates in order to change its physical condition. Many objects may
be attained by correct heat treatment, but nothing much can be
expected unless the man who directs the operations knows what is
the essential difference in a piece of steel at room temperature
and at a red heat, other than the obvious fact that it is hot. The
science of metallography has been developed in the past 25 years,
and aided by precise methods of measuring temperature, has done
much to systematize the information which we possess on metallic
alloys, and steel in particular.





Next: Critical Points

Previous: Blending The Compound



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