Vacuum heat treatment furnace that achieves high retention temperature accuracy.
The "PQ Series" is a horizontal vacuum furnace capable of accommodating a wide range of cooling gas pressures. The inner surface of the heating chamber is covered with a shield plate to suppress the scattering of insulation material. As an option, covering it with a molybdenum plate enhances the radiation efficiency inside the heating chamber, improving temperature distribution uniformity and uniform heating characteristics. Additionally, to achieve optimal uniform heating and distribution of heat-treated products over a wide range from low to high temperatures, heaters are arranged on four sides: top, bottom, and both sides, with three-way control in the front-back direction. 【Features】 ■ To enhance energy efficiency, the outer surface temperature of the internal chamber is maintained below 200°C. ■ The opening and closing doors adopt a clutch-type design for improved safety under pressure. ■ Cooling gas is blown in from below the heating chamber. ■ Cooling is possible with reduced pressure: 87 kPa, and pressurized: 130 kPa to 200 kPa (optional: 280 kPa). *For more details, please download the PDF or feel free to contact us.
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basic information
【Basic Performance】 ■Operating temperature range (maximum): 540℃ to 1280℃ (1320℃) ■Achievable pressure: High vacuum above 7mPa ■Exhaust speed: Within 12 minutes from atmospheric pressure to 10mPa (degas, empty furnace, room temperature, N2 gas purge state) ■Heating time: Within 25 to 35 minutes from room temperature to 1150℃ (empty furnace, vacuum, controlled T/C temperature) ■Cooling time: Within 15 to 20 minutes from 1150℃ to 150℃ (empty furnace, N2 gas, 200kPa, gas fan cooling) *For more details, please download the PDF or feel free to contact us.
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Applications/Examples of results
【Applications】 ■ Hardening ■ Tempering (above 540°C) ■ Solution treatment ■ Aging treatment ■ Magnetic treatment ■ Annealing ■ Brazing *For more details, please download the PDF or feel free to contact us.
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Company information
Our company, as the core enterprise of the IHI Group's heat and surface treatment business, prioritizes enhancing customer value in its business activities and has grown to boast a top-class domestic market share in the fields of vacuum heat treatment equipment and new material manufacturing equipment. As manufacturing bases, we have the Iwakuni plant, which originated from the Ishikawajima Iwakuni Works, and the Kakamigahara plant, which originated from Japan Hayes. Additionally, the Kakamigahara plant is equipped with a heat treatment technical center, where we are expanding our research and development of processes brought about by our equipment and fostering an open innovation space with our customers.