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Quenching
It is considered good practice to quench alloy steels from th...

The Leeds And Northrup Potentiometer System
The potentiometer pyrometer system is both flexible and subst...

Correction By Zero Adjustment
Many pyrometers are supplied with a zero adjuster, by means ...

Carburizing By Gas
The process of carburizing by gas, briefly mentioned on page ...

Hardness Testing
The word hardness is used to express various properties of me...

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

The Electric Process
The fourth method of manufacturing steel is by the electric f...

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

Effects Of Proper Annealing
Proper annealing of low-carbon steels causes a complete solu...

A Satisfactory Luting Mixture
A mixture of fireclay and sand will be found very satisfactor...

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

Application Of Liberty Engine Materials To The Automotive Industry
The success of the Liberty engine program was an engineer...

Annealing Of Rifle Components At Springfield Armory
In general, all forgings of the components of the arms manufa...

Steel Can Be Worked Cold
As noted above, steel can be worked cold, as in the case of ...

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

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

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

Tungsten
Tungsten, as an alloy in steel, has been known and used for a...

Piston Pin
The piston pin on an aviation engine must possess maximum res...

Temperature Recording And Regulation
Each furnace is equipped with pyrometers, but the reading an...



Cyanide Bath For Tool Steels






Category: HEAT TREATMENT OF STEEL

All high-carbon tool steels are
heated in a cyanide bath. With this bath, the heat can be controlled
within 3 deg. The steel is evenly heated without exposure to the
air, resulting in work which is not warped and on which there is no
scale. The cyanide bath is, of course, not available for high-speed
steel because of the very high temperatures necessary.





Next: Drop Forging Dies

Previous: Carburizing Low-carbon Sleeves



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