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

Steel Making

Steel For Chisels And Punches
The highest grades of carbon or tempering steels are to be re...

Highly Stressed Parts
The highly stressed parts on the Liberty engine consisted of ...

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

Temperature For Annealing
Theoretically, annealing should be accomplished at a tempera...

Case-hardening Treatments For Various Steels
Plain water, salt water and linseed oil are the three most co...

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

Separating The Work From The Compound
During the pulling of the heat, the pots are dumped upon a ca...

Correction For Cold-junction Errors
The voltage generated by a thermo-couple of an electric pyrom...

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

Pyrometers
Armor plate makers sometimes use the copper ball or Siemens' ...

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

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

S A E Heat Treatments
The Society of Automotive Engineers have adopted certain heat...

Restoring Overheated Steel
The effect of heat treatment on overheated steel is shown gra...

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

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

Tensile Properties
Strength of a metal is usually expressed in the number of pou...

William Kelly's Air-boiling Process
An account of Bessemer's address to the British Association w...

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

Optical System And Electrical Circuit Of The Leeds & Northrup Optical Pyrometer
For extremely high temperature, the optical pyrometer is lar...



A Satisfactory Luting Mixture






Category: CASE-HARDENING OR SURFACE-CARBURIZING

A mixture of fireclay and sand will be found very satisfactory
for closing up the boxes, and by observing the appearance of the
work when taken out we can gage the suitability of the methods
employed, for unless the boxes are carefully sealed the work is
generally covered with dark scales, while if properly done the
articles will be of a light gray.

By observing the above recommendations reliable results can be obtained,
and we can expect uniform results after quenching.





Next: Gas Consumption For Carburizing

Previous: Using Illuminating Gas



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