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

Steel Making

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

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

Crucible Steel
Crucible steel is still made by melting material in a clay or...

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

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

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

The Care Of Carburizing Compounds
Of all the opportunities for practicing economy in the heat-t...

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

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

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

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

Gas Consumption For Carburizing
Although the advantages offered by the gas-fired furnace for ...

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

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

Vanadium
Vanadium has a very marked effect upon alloy steels rich in c...

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

An Automatic Temperature Control Pyrometer
Automatic temperature control instruments are similar to the ...

Knowing What Takes Place
How are we to know if we have given a piece of steel the ver...

Classifications Of Steel
Among makers and sellers, carbon tool-steels are classed by g...

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



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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