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

Affinity Of Nickel Steel For Carbon
The carbon- and nickel-steel gears are carburized separately...

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

Carbon Tool Steel
Heat to a bright red, about 1,500 to 1,550 deg.F. Do not ham...

Pyrometry And Pyrometers
A knowledge of the fundamental principles of pyrometry, or th...

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

High-chromium Or Rust-proof Steel
High-chromium, or what is called stainless steel containing f...

Hardening Carbon Steel For Tools
For years the toolmaker had full sway in regard to make of st...

Tempering Round Dies
A number of circular dies of carbon tool steel for use in too...

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

The Care Of Carburizing Compounds
Of all the opportunities for practicing economy in the heat-t...

Phosphorus
Phosphorus is one of the impurities in steel, and it has been...

Molybdenum
Molybdenum steels have been made commercially for twenty-five...

Furnace Data
In order to give definite information concerning furnaces, fu...

Preventing Carburizing By Copper-plating
Copper-plating has been found effective and must have a thick...

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

Quenching
It is considered good practice to quench alloy steels from th...

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

Typical Oil-fired Furnaces
Several types of standard oil-fired furnaces are shown herew...

Impact Tests
Impact tests are of considerable importance as an indication ...



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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