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

Steel Making

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

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

Chrome-nickel Steel
Forging heat of chrome-nickel steel depends very largely on ...

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

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

Annealing To Relieve Internal Stresses
Work quenched from a high temperature and not afterward tempe...

Annealing Method
Forgings which are too hard to machine are put in pots with ...

The Effect
The heating at 1,600 deg.F. gives the first heat treatment w...

Non-shrinking Oil-hardening Steels
Certain steels have a very low rate of expansion and contract...

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

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

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

Complete Calibration Of Pyrometers
For the complete calibration of a thermo-couple of unknown e...

Annealing Work
With the exception of several of the higher types of alloy s...

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

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

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

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

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

Silicon
SILICON is a very widespread element (symbol Si), being an es...



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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