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Steel Making

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

Heating
Although it is possible to work steels cold, to an extent de...

The Thermo-couple
With the application of the thermo-couple, the measurement of...

Carbon Steels For Different Tools
All users of tool steels should carefully study the different...

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

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

Take Time For Hardening
Uneven heating and poor quenching has caused loss of many ve...

Robert Mushet
Robert (Forester) Mushet (1811-1891), born in the Forest of D...

Oil-hardening Steel
Heat slowly and uniformly to 1,450 deg.F. and forge thorough...

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

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

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

Standard Analysis
The selection of a standard analysis by the manufacturer is t...

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

Crankshaft
The crankshaft was the most highly stressed part of the entir...

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

Manganese
Manganese adds considerably to the tensile strength of steel,...

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

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

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



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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