There was an old fellow named Green, Who grew so abnormally lean, And flat, and compressed, That his back touched his chest, And sideways he couldn't be seen. There was a young lady of Lynn, Who was so excessively thin,... Read more of THIN PEOPLE at Free Jokes.caInformational Site Network Informational
   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

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

ANNEALING can be done by heating to temperatures ranging from...

Quality And Structure
The quality of high-speed steel is dependent to a very great ...

Annealing To Relieve Internal Stresses
Work quenched from a high temperature and not afterward tempe...

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

Short Method Of Treatment
In the new method, the packed pots are run into the case-har...

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

Open Hearth Process
The open hearth furnace consists of a big brick room with a l...

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

Piston Pin
The piston pin on an aviation engine must possess maximum res...

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

Armor plate makers sometimes use the copper ball or Siemens' ...

Detrimental Elements
Sulphur and phosphorus are two elements known to be detrimen...

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

Heating Of Manganese Steel
Another form of heat-treating furnace is that which is used ...

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

Reheating for machine ability was done at 100 deg. less than ...

Nickel may be considered as the toughest among the non-rare a...

The Care Of Carburizing Compounds
Of all the opportunities for practicing economy in the heat-t...

Leeds And Northrup Optical Pyrometer
The principles of this very popular method of measuring tempe...

Heat Treatment Of Milling Cutters Drills Reamers Etc


THE FIRE.--Gas and electric furnaces designed for high heats are
now made for treating high-speed steels. We recommend them for
treating all kinds of Blue Chip tools and particularly the above
class. After tools reach a yellow heat in the forge fire they must
not be allowed to touch the fuel or come in contact with the blast
or surrounding air.

HEATING.--Tools of this kind should be heated to a mellow white
heat, or as hot as possible without injuring the cutting edges
(2,000 to 2,200 deg.F.). For most work the higher the heat the better
the tool. Where furnaces are used, we recommend preheating the
tools to a red heat in one furnace before putting them in a white
hot furnace.

COOLING.--We recommend quenching all of the above tools in oil
when taken from the fire. We have found fish oil, cottonseed oil,
Houghton's No. 2 soluble oil and linseed oil satisfactory. The
high heat is the important thing in hardening Blue Chip tools.
If a white hot tool is allowed to cool in the open air it will be
hard, but the air scales the tool.

DRAWING THE TEMPER.--Tools of this class should be drawn considerably
more than water-hardening steel for the same purpose.

Next: Heat Treatment Of Punches And Dies Shears Taps Etc

Previous: Heat Treatment Of Lathe Planer And Similar Tools

Add to Add to Reddit Add to Digg Add to Add to Google Add to Twitter Add to Stumble Upon
Add to Informational Site Network

Viewed 3146