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Steel Making

A Satisfactory Luting Mixture
A mixture of fireclay and sand will be found very satisfactor...

Hints For Tool Steel Users
Do not hesitate to ask for information from the maker as to t...

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

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

For Milling Cutters And Formed Tools
FORGING.--Forge as before.--ANNEALING.--Place the steel in a ...

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

The Thermo-couple
With the application of the thermo-couple, the measurement of...

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

The Effect Of Tempering On Water-quenched Gages
The following information has been supplied by Automatic and ...

The Effect
The heating at 1,600 deg.F. gives the first heat treatment w...

The Theory Of Tempering
Steel that has been hardened is generally harder and more br...

Effect Of Different Carburizing Material
[Illustrations: FIGS. 33 to 37.] Each of these different p...

Gas Consumption For Carburizing
Although the advantages offered by the gas-fired furnace for ...

Pyrometers For Molten Metal
Pyrometers for molten metal are connected to portable thermoc...

Critical Points
One of the most important means of investigating the properti...

Connecting Rods
The material used for all connecting rods on the Liberty engi...

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

Highly Stressed Parts
The highly stressed parts on the Liberty engine consisted of ...

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

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



Air-hardening Steels






Category: FURNACES

These steels are recommended for boring,
turning and planing where the cost of high-speed seems excessive.
They are also recommended for hard wood knives, for roughing and
finishing bronze and brass, and for hot bolt forging dies. This
steel cannot be cut or punched cold but can be shaped and ground
on abrasive wheels of various kinds.

It should be heated slowly and evenly for forging and kept as evenly
heated at a bright red as possible. It should not be forged after
it cools to a dark red.

After the tool is made, heat it again to a bright red and lay it
down to cool in a dry place or it can be cooled in a cold, dry
air blast. Water must be kept away from it while it is hot.





Next: Typical Oil-fired Furnaces

Previous: Hardening High-speed Steel



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