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   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

Lathe And Planer Tools
TO FORGE.--Gently warm the steel to remove any chill is parti...

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

Annealing Alloy Steel
The term alloy steel, from the steel maker's point of view, r...

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

Sulphur
Sulphur is another impurity and high sulphur is even a greate...

Sulphur
SULPHUR is another element (symbol S) which is always found i...

Effects Of Proper Annealing
Proper annealing of low-carbon steels causes a complete solu...

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

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

Alloying Elements
Commercial steels of even the simplest types are therefore p...

Complete Calibration Of Pyrometers
For the complete calibration of a thermo-couple of unknown e...

Composition Of Transmission-gear Steel
If the nickel content of this steel is eliminated, and the pe...

Standard Analysis
The selection of a standard analysis by the manufacturer is t...

Care In Annealing
Not only will benefits in machining be found by careful anne...

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

Placing Of Pyrometers
When installing a pyrometer, care should be taken that it re...

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

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

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

Hardening
The forgings can be hardened by cooling in still air or quen...



Tool Or Crucible Steel






Category: ANNEALING

Crucible steel can be annealed either in muffled furnace or by
being packed. Packing is by far the most satisfactory method as it
prevents scaling, local hard spots, uneven annealing, or violent
changes in shape. It should be brought up slowly to just above
its calescent or hardening temperature. The operator must know
before setting his heats the temperature at which the different
carbon content steels are hardened. The higher the carbon contents
the lower is the hardening heat, but this should in no case be
less than 1,450 deg.F.





Next: Annealing Alloy Steel

Previous: Annealing Of High-speed Steel



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