Method for efficient heat treatment of steel

Details Method for efficient heat treatment of steel Method for efficient heat treatment of steel

2008-08-01

2011-11-29

Yee, Deborah (Department: 1733)

Metal treatment

Process of modifying or maintaining internal physical...

With measuring, testing, or sensing

C148S663000, C148S664000

Reexamination Certificate

active

08066828

ABSTRACT:
A method for heat treatment of steel and a system thereof is provided. First the steel is austenitized at a suitable temperature and then the temperature is rapidly brought down to the austempering temperature. Here the cyclic austempering is carried out between two austempering temperatures by modulating the temperature with controlled heating and cooling and the controlled temperature modulation is obtained by controlling the temperature-time profile in a batch furnace or by controlling the zone temperatures in a continuous furnace. This method of cyclic austempering reduces the austempering time, reduces the energy consumption and emissions, enhances the productivity and reduces the process cost.

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patent: 0896068 (2002-08-01), None

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