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   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

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

Vanadium
Vanadium has a very marked effect upon alloy steels rich in c...

Forging High-speed Steel
Heat very slowly and carefully to from 1,800 to 2,000 deg.F....

Hardening
The forgings can be hardened by cooling in still air or quen...

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

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

Heating
Although it is possible to work steels cold, to an extent de...

Preparing Parts For Local Case-hardening
At the works of the Dayton Engineering Laboratories Company, ...

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...

Nickel
Nickel may be considered as the toughest among the non-rare a...

Preventing Carburizing By Copper-plating
Copper-plating has been found effective and must have a thick...

Heat Treatment Of Milling Cutters Drills Reamers Etc
THE FIRE.--Gas and electric furnaces designed for high heats ...

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

Tool Or Crucible Steel
Crucible steel can be annealed either in muffled furnace or b...

Mushet And Bessemer
That Mushet was "used" by Ebbw Vale against Bessemer is, perh...

Rate Of Cooling
At the option of the manufacturer, the above treatment of gea...

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

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

Hardening
Steel is hardened by quenching from above the upper critical....

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



Correction By Zero Adjustment






Category: PYROMETRY AND PYROMETERS

Many pyrometers are supplied with
a zero adjuster, by means of which the pointer can be set to any
actual cold-junction temperature. If the cold junction of the
thermo-couple is in a temperature of 100 deg.F., the pointer can be
set to this point on the scale, and the readings of the instrument
will be correct.





Next: Compensating Leads

Previous: Correction For Cold-junction Errors



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