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Carbon In Tool Steel
Carbon tool steel, or tool steel as it is commonly called, us...

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

Placing The Thermo-couples
The following illustrations from the Taylor Instrument Compan...

Forging High-speed Steel
Heat very slowly and carefully to from 1,800 to 2,000 deg.F....

Shrinking And Enlarging Work
Steel can be shrunk or enlarged by proper heating and cooling...

Carbon Steels For Different Tools
All users of tool steels should carefully study the different...

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

Quenching The Work
In some operations case-hardened work is quenched from the bo...

Chromium
Chromium when alloyed with steel, has the characteristic func...

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

Optical System And Electrical Circuit Of The Leeds & Northrup Optical Pyrometer
For extremely high temperature, the optical pyrometer is lar...

Heat-treating Department
The heat-treating department occupies an L-shaped building. ...

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

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

Case-hardening Treatments For Various Steels
Plain water, salt water and linseed oil are the three most co...

Uses Of The Various Tempers Of Carbon Tool Steel
DIE TEMPER.--No. 3: All kinds of dies for deep stamping, pres...

S A E Heat Treatments
The Society of Automotive Engineers have adopted certain heat...

Process Of Carburizing
Carburizing imparts a shell of high-carbon content to a low-...

Temperatures To Use
As soon as the temperature of the steel reaches 100 deg.C. (...

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



Quenching The Work






Category: CASE-HARDENING OR SURFACE-CARBURIZING

In some operations case-hardened work is quenched from the box by
dumping the whole contents into the quenching tank. It is common
practice to leave a sieve or wire basket to catch the work, allowing
the carburizing material to fall to the bottom of the tank where it
can be recovered later and used again as a part of a new mixture.
For best results, however, the steel is allowed to cool down slowly
in the box after which it is removed and hardened by heating and
quenching the same as carbon steel of the same grade. It has absorbed
sufficient carbon so that, in the outer portions at least, it is
a high-carbon steel.





Next: The Quenching Tank

Previous: Effect Of Different Carburizing Material



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