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

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

Making Steel Balls
Steel balls are made from rods or coils according to size, st...

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

Manganese adds considerably to the tensile strength of steel,...

Tempering Round Dies
A number of circular dies of carbon tool steel for use in too...

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

The Effect
The heating at 1,600 deg.F. gives the first heat treatment w...

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

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

Heat-treating Equipment And Methods For Mass Production
The heat-treating department of the Brown-Lipe-Chapin Company...

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

The Pyrometer And Its Use
In the heat treatment of steel, it has become absolutely nece...

Chromium when alloyed with steel, has the characteristic func...

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

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

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

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

The Modern Hardening Room
A hardening room of today means a very different place from ...

The Packing Department
In Fig. 56 is shown the packing pots where the work is packe...

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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