Copyright Almar Industries 2010
A Woman Owned Business
A Woman Owned Business
The Induction Generator, combined with a "work coil", creates an electromagnetic field. This field acts as a giant magnet inducing eddy currents in the part, pulling the molecular structure of the part, thereby creating a friction, which causes the metal to heat up quickly.
Cooling steel rapidly (called quenching) from above the transformation temperature carries out the hardening process. Steel is generally quenched in water (W) or brines for the most rapid cooling, or in oil (O) for some alloy steels, and in air (A) for certain other high alloy steels. After steel is quenched, it
is usually hard and brittle; it may even crack if dropped.
Induction Heat treating steel is intended to increase the hardness so as to increase resistance to wear or to enable the steel to withstand various service conditions. Induction Heat treating is a non-contact process, the heat needed is generated only in the part by an induction coil, not in the surrounding area as with a furnace or oven. The location of the heating can be directed to a specific area of the part which achieves accurate and consistant results.
To make steel more ductile, it must be tempered. Tempering or Drawing consists of re-heating quenched steel to a suitable temperature which is below the transformation temperature for a certain amount of time and then cooling back to room temperature.
While the tempering process makes steel tough, Annealing is a process of softening steel by heating it above the transformation temperature and cooling very slowly after it has reached a suitable temperature.
Annealing reduces the hardness of an area of steel that has already been hardened. Annealling is used to induce ductility, releave internal stresses, refine the structure of the steel and improve the cold working properties of the part.
Cooling steel rapidly (called quenching) from above the transformation temperature carries out the hardening process. Steel is generally quenched in water (W) or brines for the most rapid cooling, or in oil (O) for some alloy steels, and in air (A) for certain other high alloy steels. After steel is quenched, it
is usually hard and brittle; it may even crack if dropped.
Induction Heat treating steel is intended to increase the hardness so as to increase resistance to wear or to enable the steel to withstand various service conditions. Induction Heat treating is a non-contact process, the heat needed is generated only in the part by an induction coil, not in the surrounding area as with a furnace or oven. The location of the heating can be directed to a specific area of the part which achieves accurate and consistant results.
To make steel more ductile, it must be tempered. Tempering or Drawing consists of re-heating quenched steel to a suitable temperature which is below the transformation temperature for a certain amount of time and then cooling back to room temperature.
While the tempering process makes steel tough, Annealing is a process of softening steel by heating it above the transformation temperature and cooling very slowly after it has reached a suitable temperature.
Annealing reduces the hardness of an area of steel that has already been hardened. Annealling is used to induce ductility, releave internal stresses, refine the structure of the steel and improve the cold working properties of the part.
