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Steel Making

Placing Of Pyrometers
When installing a pyrometer, care should be taken that it re...

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

Instructions For Working High-speed Steel
Owing to the wide variations in the composition of high-speed...

Placing The Thermo-couples
The following illustrations from the Taylor Instrument Compan...

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

The Penetration Of Carbon
Carburized mild steel is used to a great extent in the manufa...

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

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

Hardening High-speed Steel
In forging use coke for fuel in the forge. Heat steel slowly ...

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

Flange Shields For Furnaces
Such portable flame shields as the one illustrated in Fig. 1...

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

Blending The Compound
Essentially, this consists of the sturdy, power-driven separa...

Preventing Decarbonization Of Tool Steel
It is especially important to prevent decarbonization in such...

Effect Of A Small Amount Of Copper In Medium-carbon Steel
This shows the result of tests by C. R. Hayward and A. B. Joh...

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

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

Carbon-steel Forgings
Low-stressed, carbon-steel forgings include such parts as car...

Suggestions For Handling High-speed Steels
The following suggestions for handling high-speed steels are ...

Shrinking And Enlarging Work
Steel can be shrunk or enlarged by proper heating and cooling...

Pyrometers For Molten Metal


Pyrometers for molten metal are connected to portable thermocouples
as in Fig. 132. Usually the pyrometer is portable, as shown in
this case, which is a Brown. Other methods of mounting for this
kind of work arc shown in Figs. 133 and 134. The bent mountings
are designed for molten metal, such as brass or copper and are
supplied with either clay, graphite or carborundum tubes. Fifteen
feet of connecting wire is usually supplied.

The angle mountings, Fig. 134, are recommended for baths such as
lead or cyanide. The horizontal arm is usually about 14 in. long,
and the whole mounting is easily taken apart making replacements
very easy. Details of the thermo-couple shown in Fig. 132 are given
in Fig. 135. This is a straight rod with a protector for the hand
of the operator. The lag in such couples is less than one minute.
These are Englehard mountings.

Next: Protectors For Thermo-couples

Previous: An Automatic Temperature Control Pyrometer

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