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Steel Making

Composition And Properties Of Steel
It is a remarkable fact that one can look through a dozen tex...

Protective Screens For Furnaces
Workmen needlessly exposed to the flames, heat and glare from...

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

Preventing Cracks In Hardening
The blacksmith in the small shop, where equipment is usually ...

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

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

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...

Blending The Compound
Essentially, this consists of the sturdy, power-driven separa...

Hardening
Steel is hardened by quenching from above the upper critical....

Case-hardening Treatments For Various Steels
Plain water, salt water and linseed oil are the three most co...

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

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

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

The Influence Of Size
The size of the piece influences the physical properties obta...

Pickling The Forgings
The forgings were then pickled in a hot solution of either ni...

Tungsten
Tungsten, as an alloy in steel, has been known and used for a...

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

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

Manganese
MANGANESE is a metal much like iron. Its chemical symbol is M...



Correction By Zero Adjustment






Category: PYROMETRY AND PYROMETERS

Many pyrometers are supplied with
a zero adjuster, by means of which the pointer can be set to any
actual cold-junction temperature. If the cold junction of the
thermo-couple is in a temperature of 100 deg.F., the pointer can be
set to this point on the scale, and the readings of the instrument
will be correct.





Next: Compensating Leads
Previous: Correction For Cold-junction Errors




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