Wine Cultivation.com - Discover how to cultivate grapes and find tips on growing under different soil / weather conditions Visit Wine Cultivation.comInformational Site Network Informational
Privacy
   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

Steel Can Be Worked Cold
As noted above, steel can be worked cold, as in the case of ...

A Satisfactory Luting Mixture
A mixture of fireclay and sand will be found very satisfactor...

Cyanide Bath For Tool Steels
All high-carbon tool steels are heated in a cyanide bath. Wi...

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

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

Compensating Leads
By the use of compensating leads, formed of the same materia...

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

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

Oil-hardening Steel
Heat slowly and uniformly to 1,450 deg.F. and forge thorough...

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

Plant For Forging Rifle Barrels
The forging of rifle barrels in large quantities and heat-tre...

Gears
The material used for all gears on the Liberty engine was sel...

Testing And Inspection Of Heat Treatment
The hard parts of the gear must be so hard that a new mill f...

Silicon
SILICON is a very widespread element (symbol Si), being an es...

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

Heat Treatment Of Lathe Planer And Similar Tools
FIRE.--For these tools a good fire is one made of hard foundr...

Tungsten
Tungsten, as an alloy in steel, has been known and used for a...

The Influence Of Size
The size of the piece influences the physical properties obta...

Hardness Testing
The word hardness is used to express various properties of me...

Correction For Cold-junction Errors
The voltage generated by a thermo-couple of an electric pyrom...



Preventing Decarbonization Of Tool Steel






Category: HARDENING CARBON STEEL FOR TOOLS

It is especially important to prevent decarbonization in such tools
as taps and form cutters, which must keep their shape after hardening
and which cannot be ground away on the profile. For this reason
it is well to put taps, reamers and the like into pieces of pipe
in heating them. The pipe need be closed on one end only, as the
air will not circulate readily unless there is an opening at both
ends.

Even if used in connection with a blacksmith's forge the lead bath
has an advantage for heating tools of complicated shapes, since
it is easier to heat them uniformly and they are submerged and
away from the air. The lead must be stirred frequently or the heat
is not uniform in all parts of the lead bath. Covering the lead
with powdered charcoal will largely prevent oxidization and waste
of lead.

Such a bath is good for temperatures between 620 and 1,150 deg.F. At
higher temperatures there is much waste of lead.





Next: Annealing To Relieve Internal Stresses

Previous: Steel For Chisels And Punches



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 4923