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

An Automatic Temperature Control Pyrometer
Automatic temperature control instruments are similar to the ...

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

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

Liberty Motor Connecting Rods
The requirements for materials for the Liberty motor connecti...

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

Knowing What Takes Place
How are we to know if we have given a piece of steel the ver...

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

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

Tool Or Crucible Steel
Crucible steel can be annealed either in muffled furnace or b...

Heat Treatment Of Gear Blanks
This section is based on a paper read before the American Gea...

Oil-hardening Steel
Heat slowly and uniformly to 1,450 deg.F. and forge thorough...

Lathe And Planer Tools
FORGING.--Gently warm the steel to remove any chill, is parti...

Composition Of Transmission-gear Steel
If the nickel content of this steel is eliminated, and the pe...

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

Heat Treatment Of Axles
Parts of this general type should be heat-treated to show the...

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

The Leeds And Northrup Potentiometer System
The potentiometer pyrometer system is both flexible and subst...

Optical System And Electrical Circuit Of The Leeds & Northrup Optical Pyrometer
For extremely high temperature, the optical pyrometer is lar...

Annealing Of Rifle Components At Springfield Armory
In general, all forgings of the components of the arms manufa...



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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