The success I had during the twenty-five years in which I was connected with this study was, I believe, chiefly owing to the fact that although my principal study was the lines and formation of hands, yet I did not confine myself alone to th... Read more of A Brief Resume Of The History Of The Study Of Hands Through The Centuries To The Present Day at Palm Readings.orgInformational Site Network Informational
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Steel Making

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

The Electric Process
The fourth method of manufacturing steel is by the electric f...

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

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

Annealing Alloy Steel
The term alloy steel, from the steel maker's point of view, r...

Silicon prevents, to a large extent, defects such as gas bubb...

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

Process Of Carburizing
Carburizing imparts a shell of high-carbon content to a low-...

Forging High-speed Steel
Heat very slowly and carefully to from 1,800 to 2,000 deg.F....

Heat Treatment Of Lathe Planer And Similar Tools
FIRE.--For these tools a good fire is one made of hard foundr...

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

A Satisfactory Luting Mixture
A mixture of fireclay and sand will be found very satisfactor...

Quenching The Work
In some operations case-hardened work is quenched from the bo...

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

The Quenching Tank
The quenching tank is an important feature of apparatus in c...

High-carbon Machinery Steel
The carbon content of this steel is above 30 points and is ha...

Placing The Thermo-couples
The following illustrations from the Taylor Instrument Compan...

The Effect Of Tempering On Water-quenched Gages
The following information has been supplied by Automatic and ...

Carbon-steel Forgings
Low-stressed, carbon-steel forgings include such parts as car...

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

The Care Of Carburizing Compounds


Of all the opportunities for practicing economy in the heat-treatment
department, there is none that offers greater possibilities for
profitable returns than the systematic cleaning, blending and reworking
of artificial carburizers, or compounds.

The question of whether or not it is practical to take up the work
depends upon the nature of the output. If the sole product of the
hardening department consists of a 1.10 carbon case or harder,
requiring a strong highly energized material of deep penetrative
power such as that used in the carburizing of ball races, hub-bearings
and the like, it would be best to dispose of the used material to
some concern whose product requires a case with from 0.70 to 0.90
carbon, but where there is a large variety of work the compound
may be so handled that there will be practically no waste.

This is accomplished with one of the most widely known artificial
carburizers by giving all the compound in the plant three distinct
classifications: New, being direct from the maker; half and
half, being one part of new and one part first run; and 2 to 1,
which consists of two parts of old and one part new.

Next: Separating The Work From The Compound

Previous: Gas Consumption For Carburizing

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