Steel Making
Gas Consumption For Carburizing
Although the advantages offered by the gas-fired furnace for ...
Silicon
Silicon prevents, to a large extent, defects such as gas bubb...
Furnace Data
In order to give definite information concerning furnaces, fu...
Process Of Carburizing
Carburizing imparts a shell of high-carbon
content to a low-...
Cutting-off Steel From Bar
To cut a piece from an annealed bar, cut off with a hack saw,...
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...
The Effect
The heating at 1,600 deg.F. gives the first heat treatment
w...
Phosphorus
Phosphorus is one of the impurities in steel, and it has been...
Carburizing By Gas
The process of carburizing by gas, briefly mentioned on page ...
Hardening
The forgings can be hardened by cooling in still air
or quen...
The Pyrometer And Its Use
In the heat treatment of steel, it has become absolutely nece...
Shrinking And Enlarging Work
Steel can be shrunk or enlarged by proper heating and cooling...
Typical Oil-fired Furnaces
Several types of standard oil-fired
furnaces are shown herew...
Compensating Leads
By the use of compensating leads, formed of
the same materia...
Optical System And Electrical Circuit Of The Leeds & Northrup Optical Pyrometer
For extremely high temperature, the optical pyrometer is
lar...
Care In Annealing
Not only will benefits in machining be found
by careful anne...
Tungsten
Tungsten, as an alloy in steel, has been known and used for a...
For Milling Cutters And Formed Tools
FORGING.--Forge as before.--ANNEALING.--Place the steel in a ...
Carburizing Material
The simplest carburizing substance is charcoal. It is also th...