Draw a Pentacle on your left hand using a blessed red pen. Visualize a sand clock as you draw. Now Put your left hand on your forehead, or third eye, and say: SANDS OF TIME SHOW ME THY WAY TURN THE NIGHTS INTO DAYS ROSE PETALS SO LIGHT AND G... Read more of SPELL TO SPEED UP TIME at White Magic.caInformational Site Network Informational
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Steel Making

Chromium
Chromium when alloyed with steel, has the characteristic func...

Application To The Automotive Industry
The information given on the various parts of the Liberty eng...

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

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

Hardening High-speed Steel
In forging use coke for fuel in the forge. Heat steel slowly ...

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

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

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

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

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

Phosphorus
PHOSPHORUS is an element (symbol P) which enters the metal fr...

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

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

Temperature Recording And Regulation
Each furnace is equipped with pyrometers, but the reading an...

Effect Of Different Carburizing Material
[Illustrations: FIGS. 33 to 37.] Each of these different p...

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

Cutting-off Steel From Bar
To cut a piece from an annealed bar, cut off with a hack saw,...

Annealing
There is no mystery or secret about the proper annealing of d...

Affinity Of Nickel Steel For Carbon
The carbon- and nickel-steel gears are carburized separately...

Suggestions For Handling High-speed Steels
The following suggestions for handling high-speed steels are ...



Preparing Parts For Local Case-hardening






Category: CASE-HARDENING OR SURFACE-CARBURIZING

At the works of the Dayton Engineering Laboratories Company, Dayton,
Ohio, they have a large quantity of small shafts, Fig. 40, that
are to be case-hardened at A while the ends B and C are to
be left soft. Formerly, the part A was brush-coated with melted
paraffin but, as there were many shafts, this was tedious and great
care was necessary to avoid getting paraffin where it was not wanted.



To insure uniform coating the device shown in Fig. 41 was made.
Melted paraffin is poured in the well A and kept liquid by setting
the device on a hot plate, the paraffin being kept high enough
to touch the bottoms of the rollers. The shaft to be coated is
laid between the rollers with one end against the gage B, when
a turn or two of the crank C will cause it to be evenly coated.





Next: The Penetration Of Carbon

Previous: Preventing Carburizing By Copper-plating



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