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Steel Making

William Kelly's Air-boiling Process
An account of Bessemer's address to the British Association w...

Properties Of Steel
Steels are known by certain tests. Early tests were more or l...

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

Calibration Of Pyrometer With Common Salt
An easy and convenient method for standardization and one whi...

Pyrometers For Molten Metal
Pyrometers for molten metal are connected to portable thermoc...

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

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

Hardening Operation
Hardening a gear is accomplished as follows: The gear is tak...

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

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

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

The Effect Of Tempering On Water-quenched Gages
The following information has been supplied by Automatic and ...

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

Detrimental Elements
Sulphur and phosphorus are two elements known to be detrimen...

Take Time For Hardening
Uneven heating and poor quenching has caused loss of many ve...

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

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

Quenching Tool Steel
To secure proper hardness, the cooling of quenching of steel ...

Rate Of Absorption
According to Guillet, the absorption of carbon is favored by ...

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



Placing The Thermo-couples






Category: PYROMETRY AND PYROMETERS

The following illustrations from the Taylor Instrument Company
show different applications of the thermo-couples to furnaces of
various kinds. Figure 118 shows an oil-fired furnace with a simple
vertical installation. Figure 119 shows a method of imbedding the
thermo-couple in the floor of a furnace so as to require no space
in the heating chamber.



Various methods of applying a pyrometer to common heat-treatment
furnaces are shown in Figs. 120 to 122.





Next: Leeds And Northrup Optical Pyrometer

Previous: The Leeds And Northrup Potentiometer System



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