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Hardening Operation
Hardening a gear is accomplished as follows: The gear is tak...

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

A Chromium-cobalt Steel
The Latrobe Steel Company make a high-speed steel without tun...

Heat-treating Department
The heat-treating department occupies an L-shaped building. ...

Properties Of Alloy Steels
The following table shows the percentages of carbon, manganes...

Impact Tests
Impact tests are of considerable importance as an indication ...

Drop Forging Dies
The kind of steel used in the die of course influences the he...

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

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

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

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

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

Tempering Colors On Carbon Steels
Opinions differ as to the temperature which is indicated by t...

Surface Carburizing
Carburizing, commonly called case-hardening, is the art of pr...

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

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

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

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

Short Method Of Treatment
In the new method, the packed pots are run into the case-har...

Steel Before The 1850's
In spite of a rapid increase in the use of machines and the ...



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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