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

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

Open Hearth Process
The open hearth furnace consists of a big brick room with a l...

For Milling Cutters And Formed Tools
FORGING.--Forge as before.--ANNEALING.--Place the steel in a ...

Manganese
MANGANESE is a metal much like iron. Its chemical symbol is M...

Refining The Grain
This is remedied by reheating the piece to a temperature slig...

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

Connecting Rods
The material used for all connecting rods on the Liberty engi...

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...

Hardening High-speed Steels
We will now take up the matter of hardening high-speed steels...

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

High-chromium Or Rust-proof Steel
High-chromium, or what is called stainless steel containing f...

Heavy Forging Practice
In heavy forging practice where the metal is being worked at...

Cyanide Bath For Tool Steels
All high-carbon tool steels are heated in a cyanide bath. Wi...

Hints For Tool Steel Users
Do not hesitate to ask for information from the maker as to t...

Hardening Carbon Steel For Tools
For years the toolmaker had full sway in regard to make of st...

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

Calibration Of Pyrometer With Common Salt
An easy and convenient method for standardization and one whi...

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

Liberty Motor Connecting Rods
The requirements for materials for the Liberty motor connecti...



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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