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Steel Making

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

Nickel-chromium
A combination of the characteristics of nickel and the charac...

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

High Speed Steel
For centuries the secret art of making tool steel was handed ...

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

Hardening High-speed Steels
We will now take up the matter of hardening high-speed steels...

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

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

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

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

Cutting-off Steel From Bar
To cut a piece from an annealed bar, cut off with a hack saw,...

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

Heat Treatment Of Punches And Dies Shears Taps Etc
HEATING.--The degree to which tools of the above classes shou...

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

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

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

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

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

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

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



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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