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

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

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

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

Blending The Compound
Essentially, this consists of the sturdy, power-driven separa...

Heat Treatment Of Gear Blanks
This section is based on a paper read before the American Gea...

Using Illuminating Gas
The choice of a carburizing furnace depends greatly on the fa...

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

Double Annealing
Water annealing consists in heating the piece, allowing it to...

Steel Worked In Austenitic State
As a general rule steel should be worked when it is in the a...

Highly Stressed Parts
The highly stressed parts on the Liberty engine consisted of ...

Preventing Carburizing By Copper-plating
Copper-plating has been found effective and must have a thick...

Liberty Motor Connecting Rods
The requirements for materials for the Liberty motor connecti...

Non-shrinking Oil-hardening Steels
Certain steels have a very low rate of expansion and contract...

Pyrometry And Pyrometers
A knowledge of the fundamental principles of pyrometry, or th...

Carburizing Low-carbon Sleeves
Low-carbon sleeves are carburized and pushed on malleable-ir...

Pyrometers For Molten Metal
Pyrometers for molten metal are connected to portable thermoc...

The Packing Department
In Fig. 56 is shown the packing pots where the work is packe...

Carbon In Tool Steel
Carbon tool steel, or tool steel as it is commonly called, us...

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

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



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 3223