HEAT TREATMENT & FINISHING
All steel castings require a thermal treatment before being rendered fit for service. The basic heat treatment processes routinely carried out are:
- Normalising of Steel
- Annealing of Steels
- Stress Relief Annealing of Irons and Steels
- Quench and Tempering of Steels
- Solution Annealing of Stainless Steels
- Precipitation hardening of Stainless Steels
Austral Alloys has four electric heat treatment furnaces all provided with state of the art temperature control and continuous data logging. All furnaces are controlled & monitored by Shimaden Microscan wireless technology allowing them to be accessed remotely via laptop, are powered by Solid State Thyristor Power switching and are accompanied by water or air blast quenching facilities. Furnace specifications
Furnace 1:
- Silicon Carbide "Glow Bar" unit rated to 1250 deg C
- load capacity 450mm x 450mm x 1200mm
- equipped with water quench facilities
Furnace 2:
- rated to 700 deg C
- load capacity 450mm x 450mm x 1200mm
- electric resistant element heating and fan circulation for accurate low temperature tempering of alloy steels and for stress relief annealing
Furnace 3:
- 105 Kw 3000kg bogie hearth furnace
- heated by Silicon Carbide glow bars
- rated to 1250 deg C.
- load capacity 2000mm x 1500mm x 1200mm
- equipped with an 8000 litre water quench tank
- used for normalising, annealing, solution annealing and stress relieving
Furnace 4:
- 113 Kw walking beam furnace
- rated to 1125 deg C
- load capacity 1200mm x1000mm x 2000mm
- resistance heated on the walls, floor & ceiling for an even heat at lower temperatures
- used for normalising, annealing, tempering and stress relieving