Controlled heat treatment for increasing metal ductility, reducing hardness, and relieving internal stresses from machining and grinding operations.
Annealing is a heat treatment process where metal is heated above its recrystallization temperature, held for a defined period, then slowly cooled - typically within a controlled LPG-fired furnace. This increases ductility, reduces hardness, and eliminates internal micro-stresses introduced by cold working, grinding, or machining.
BPCL LPG-fired annealing furnaces offer the temperature uniformity (±5°C) and controlled cooling rates essential to achieving consistent metallurgical results across batch and continuous annealing operations.
LPG modulating burners achieve precise heating rates (3-10°C/min) critical for preventing distortion.
LPG combustion products can be used to create protective or reducing atmospheres in sealed furnaces.
Recuperative LPG burners achieve thermal efficiencies of 70-80%, cutting fuel costs versus conventional systems.
LPG suits both batch bell furnaces and continuous strip annealing lines across production scales.
Bulk piped LPG supply is also available for high-volume consumers. Contact BPCL to discuss your requirements.
