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Steel Making

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

Bessemer Process
The bessemer process consists of charging molten pig iron int...

High-carbon Machinery Steel
The carbon content of this steel is above 30 points and is ha...

Properties Of Alloy Steels
The following table shows the percentages of carbon, manganes...

Gears
The material used for all gears on the Liberty engine was sel...

Compensating Leads
By the use of compensating leads, formed of the same materia...

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

Tensile Properties
Strength of a metal is usually expressed in the number of pou...

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

Fatigue Tests
It has been known for fifty years that a beam or rod would fa...

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

S A E Heat Treatments
The Society of Automotive Engineers have adopted certain heat...

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

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

Leeds And Northrup Optical Pyrometer
The principles of this very popular method of measuring tempe...

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

Cutting-off Steel From Bar
To cut a piece from an annealed bar, cut off with a hack saw,...

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

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

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



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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