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Steel Making

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

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

Using Illuminating Gas
The choice of a carburizing furnace depends greatly on the fa...

Heat-treating Department
The heat-treating department occupies an L-shaped building. ...

Plant For Forging Rifle Barrels
The forging of rifle barrels in large quantities and heat-tre...

Pyrometers
Armor plate makers sometimes use the copper ball or Siemens' ...

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

Complete Calibration Of Pyrometers
For the complete calibration of a thermo-couple of unknown e...

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

Phosphorus
PHOSPHORUS is an element (symbol P) which enters the metal fr...

Non-shrinking Oil-hardening Steels
Certain steels have a very low rate of expansion and contract...

Testing And Inspection Of Heat Treatment
The hard parts of the gear must be so hard that a new mill f...

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

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

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

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

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

Sulphur
Sulphur is another impurity and high sulphur is even a greate...

Surface Carburizing
Carburizing, commonly called case-hardening, is the art of pr...

Annealing In Bone
Steel and cast iron may both be annealed in granulated bone. ...



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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