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Steel Making

Composition And Properties Of Steel
It is a remarkable fact that one can look through a dozen tex...

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

Process Of Carburizing
Carburizing imparts a shell of high-carbon content to a low-...

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

Pyrometry And Pyrometers
A knowledge of the fundamental principles of pyrometry, or th...

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

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

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

The Forging Of Steel
So much depends upon the forging of steel that this operation...

Temperature For Annealing
Theoretically, annealing should be accomplished at a tempera...

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

Phosphorus
Phosphorus is one of the impurities in steel, and it has been...

Nickel-chromium
A combination of the characteristics of nickel and the charac...

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

Carburizing Material
The simplest carburizing substance is charcoal. It is also th...

Furnace Data
In order to give definite information concerning furnaces, fu...

Air-hardening Steels
These steels are recommended for boring, turning and planing...

Protective Screens For Furnaces
Workmen needlessly exposed to the flames, heat and glare from...

Molybdenum
Molybdenum steels have been made commercially for twenty-five...

Carbon In Tool Steel
Carbon tool steel, or tool steel as it is commonly called, us...



Pyrometers For Molten Metal






Category: PYROMETRY AND PYROMETERS

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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