VIEW THE MOBILE VERSION of www.steelmaking.ca Informational Site Network Informational
Privacy
   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

Sulphur
Sulphur is another impurity and high sulphur is even a greate...

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

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

Annealing Work
With the exception of several of the higher types of alloy s...

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

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

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

Heat Treatment Of Punches And Dies Shears Taps Etc
HEATING.--The degree to which tools of the above classes shou...

Heat Treatment Of Axles
Parts of this general type should be heat-treated to show the...

Critical Points
One of the most important means of investigating the properti...

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

Heavy Forging Practice
In heavy forging practice where the metal is being worked at...

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

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

The Pyrometer And Its Use
In the heat treatment of steel, it has become absolutely nece...

Hardening
The forgings can be hardened by cooling in still air or quen...

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

High Speed Steel
For centuries the secret art of making tool steel was handed ...

Introduction Of Carbon
The matter to which these notes are primarily directed is the...

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



The Effect






Category: HEAT TREATMENT OF STEEL

The heating at 1,600 deg.F. gives the first heat treatment
which refines the core, which under the former high heat (1,700 deg.F.)
was rendered coarsely crystalline. All the gears, including the
scrap gears, are quenched direct from the pot in this manner.

The gears then go to the reheating furnaces, situated in front of
a battery of Gleason quenching machines. These furnaces accommodate
from 12 to 16 crown gears. The carbon-steel gears are heated in a
reducing atmosphere to about 1,425 deg.F. (depending on the carbon
content) placed in the dies in the Gleason quenching machine, and
quenched between dies in mineral oil at less than 100 deg.F. The test
gear receives exactly the same treatment as the others and is then
broken, giving a record of the condition of both case and core.





Next: Affinity Of Nickel Steel For Carbon

Previous: Short Method Of Treatment



Add to del.icio.us Add to Reddit Add to Digg Add to Del.icio.us Add to Google Add to Twitter Add to Stumble Upon
Add to Informational Site Network
Report
Privacy
SHAREADD TO EBOOK


Viewed 3473