Electrically operated Cryogenic Heat Treatment Setup
Enquiry # MET/001/2014/MKAM/ date : 01.09.2014 due on 15.09.2014 Specifications ELECTRICALLY OPERATED CRYOGENIC HEAT TREATMENT SET UP. The equipment comprises of high temperature resistance furnace capable of rapid heating upto 1000 Deg. C. with programmable controller, Cryogenic cooling chamber capable of cooling upto -196 Deg.C. with programmable controller, oil quenching facility & Tempering furnace with programmable controller. GENERAL SPECIFICATIONS: (1) RAPID HEATING FURNACE: Furnace Type: The furnace is rectangular, horizontal, opening on both side with door suitable for use in oxidizing as well as in inert atmosphere. Outer Chamber: The furnace is totally enclosed with mild steel body and suitable stand for easy operation. Inner Chamber: The inner chamber is formed by high temperature withstanding muffle with opening on both sides. Heating element: Kanthal APM Insulation: The space between the inner and outer chamber is tightly packed with high quality ceramic fiber to reduce the heat loss to the minimum.Retort: This is made of 6 mm thick AISI 310 stainless steel Rectangular horizontal with opening on both ends fitted with flanges with provision of gas inlet and outlet and thermowell. Additional Temperature Control: Microprocessor based programmable temperature controller is provided to program, indicate and control the furnace temperature which is connected to the sensor placed inside the retort thermowell. A separate sensor is pl aced inside the furnace and connected to Microprocessor based PID controller which will act as safety controller. (2) CRYOGENIC COOLING CHAMBER Type: The chamber is rectangular, horizontal, opening on both side with sliding door Outer Chamber: The furnace is totally enclosed with mild steel body and suitable stand for easy operation. Insulation: The space between the inner and outer chamber is tightly packed with high quality glass wool to reduce the heat loss to the minimum. Retort: This is made of 6 mm thick AISI 310 stainless steel Rectangular horizontal with opening on both ends fitted with flanges and provided with thermowell. Cooling media: Liquid nitrogen. Temperature Control: Microprocessor based programmable temperature controller is provided to program, indicate and control the cooling temperature which is connected to the sensor placed inside the retort thermowell. (3)TEMPERING FURNACE: Furnace Type: The furnace is rectangular, horizontal, opening on both side with door suitable for use in oxidizing as well as in inert atmosphere. Outer Chamber: The furnace is totally enclosed with mild steel body and suitable stand for easy operation. Inner Chamber: The inner chamber is formed by high temperature withstanding muffle with opening on both sides. Heating element: Kanthal A1 Insulation: The space between the inner and outer chamber is tightly packed with high quality ceramic fiber to reduce the heat loss to the minimum. Retort: This is made of 6 mm thick AISI 310 stainless steel Rectangular horizontal with opening on both ends fitted with flanges with provision of gas inlet and outlet and thermowell. Additional Temperature Control: Microprocessor based programmable temperature controller is provided to program, indicate and control the furnace temperature which is connected to the sensor placed inside the retort thermowell. A separate sensor is placed inside the furnace and connected to Microprocessor based PID controller which will act as safety controller. (4)OIL QUENCHING: A cylindrical mild steel tank with oil is provided for oil quenching the test specimen. (5)CONTROL PANEL: A separate floor model control panel accommodating the following is supplied with the equipment for operation and control of the facility. HRC fuse units Pilot indicating lights ON/OFF switch, 3 nos. Programmable temperature controllers one each for rapid heating, cooling & tempering, 2 nos. safety PID Temperature controllers one each for rapid heating and tempering furnaces. control switches for heat treatment and cooling arrangements. Numerical specifications: Inner size of all the three zone 125 mm width, 80 mm height & 250 mm depth. Max temperature of Rapid heating furnace 1000 Deg.C. Maximum cooling -196 Deg.C. Maximum temperature of tempering furnace 500 Deg.C. Input Power Supply 440 V. AC Three Phase 50 c/s. Operating voltage 400/440 V. AC 3 phase, 50 Hz. Approx. Power consumption 15 KW Technical Clarifications if any Pl Contact: Dr. M.Kamaraj ': 044 2257 4769 E-mail: kamaraj@iitm.ac.in
