Hardening - One Of The Popular Heat Treatment Options

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					?Scientific and technological development led to the introduction of a number of
useful and effective devices and systems. Our life has changed for the better with the
use of these improved devices and systems. Induction hardening is one of the popular
heat treating operations. It is performed to harden parts. There are several factors that
make the process successful.

These include cooling the material rapidly so that the transformation of martensite can
occur, adjusting the temperature of the material and the general ability and chemistry
of the material to harden properly. If one or more than one of these crucial factors are
not present, the material may remain soft and soft spots may occur on the material. So,
it is very essential check whether all the factors are present or not. Most of the factors
have control over the quenching and heating of the parts.

It is very crucial to adjust the temperature of the material so that the austenitic phase
can occur. In certain cases, it may become essential to hold the temperature for a
certain amount of time so that the material can fully transform and it can avoid
undesirable by-products that can lead to the reduction of the hardness of the materials
in the later phase.

There are several types of heat treatment processes including Case Hardening,
Homogenising, Hardening, Carburising, Carbonitriding, Annealing, Ageing, Induction
Annealing, Normalizing, Induction Hardening, Tempering, Stress Relieving etc. to
materials like Carbon Steels, Alloy Steels, Stainless Steels, Cast Irons, Die Steels and
Tool Steels.

Hardening is the process in which the hardness is increases by the process of heat
treatment. This generally means heating to a temperature a bit above the critical range.
That temperature is maintained until diffusion is complete, and by quenching in oil,
water or air.

Carburising is one of the popular and useful heat treatment processes. In this process
carbon is introduced into the surface layer of steel that have low carbon content. By
heating in a liquid, solid or gaseous carbon containing medium it may be affected. It
offers a supply for carbon at high temperatures. By controlling the time of the
treatment and the temperature, the depth of penetration and the concentration of
carbon in the steels may be varied. It is one of the most effective and useful heat
treatment processes. It is really one of the most popular heat treatment procedures.

To produce the hardness, it is very essential to quench a material correctly. Improper
quenching may lead to several problems. If a wrong quenchant is used for a certain
material, the quenching process may become slow. It is also essential to check
whether there is enough quenchant so that the heat can be removed quickly. Additives
like polymer is used by most of the water based quenchants. It is done to slow down
the cooling process to prevent cracks. The heat removing ability reduces with the
inclusion of too much of this substance.

If you are looking for a heat treatment center, then Induction Heat Treatment Services
(inductionheattreatmentservices.co.uk)can help you. They are one of the reliable and
reputed heat treatment organizations. They offer various types of heat treatment
processes like Induction Hardening, Annealing, Normalizing, Carburising,
Carbonitriding, Stress Relieving, Shot Blasting, Case Hardening, Tempering to
materials including Tool Steels, Stainless Steels, Die Steels, Alloy Steels and Cast
Irons.

				
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posted:4/30/2011
language:English
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