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

Application Of Liberty Engine Materials To The Automotive Industry
The success of the Liberty engine program was an engineer...

The Packing Department
In Fig. 56 is shown the packing pots where the work is packe...

Separating The Work From The Compound
During the pulling of the heat, the pots are dumped upon a ca...

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

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

Typical Oil-fired Furnaces
Several types of standard oil-fired furnaces are shown herew...

Rate Of Absorption
According to Guillet, the absorption of carbon is favored by ...

Heat Treatment Of Lathe Planer And Similar Tools
FIRE.--For these tools a good fire is one made of hard foundr...

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

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

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

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

Classifications Of Steel
Among makers and sellers, carbon tool-steels are classed by g...

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

Introduction Of Carbon
The matter to which these notes are primarily directed is the...

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

Preparing Parts For Local Case-hardening
At the works of the Dayton Engineering Laboratories Company, ...

Correction For Cold-junction Errors
The voltage generated by a thermo-couple of an electric pyrom...

Phosphorus
Phosphorus is one of the impurities in steel, and it has been...



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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