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Steel Making

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

Annealing
ANNEALING can be done by heating to temperatures ranging from...

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

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

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

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

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

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

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

Making Steel Balls
Steel balls are made from rods or coils according to size, st...

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

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

Protectors For Thermo-couples
Thermo-couples must be protected from the danger of mechanica...

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

Brown Automatic Signaling Pyrometer
In large heat-treating plants it has been customary to mainta...

Annealing To Relieve Internal Stresses
Work quenched from a high temperature and not afterward tempe...

Instructions For Working High-speed Steel
Owing to the wide variations in the composition of high-speed...

Steel Worked In Austenitic State
As a general rule steel should be worked when it is in the a...

Mushet And Bessemer
That Mushet was "used" by Ebbw Vale against Bessemer is, perh...

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



A Satisfactory Luting Mixture






Category: CASE-HARDENING OR SURFACE-CARBURIZING

A mixture of fireclay and sand will be found very satisfactory
for closing up the boxes, and by observing the appearance of the
work when taken out we can gage the suitability of the methods
employed, for unless the boxes are carefully sealed the work is
generally covered with dark scales, while if properly done the
articles will be of a light gray.

By observing the above recommendations reliable results can be obtained,
and we can expect uniform results after quenching.





Next: Gas Consumption For Carburizing

Previous: Using Illuminating Gas



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