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High vacuum furnace
Vacuum
news
The Cryosump
Schaeffer high vacuum furnace
Liquid nitrogen cold trap
torr. The furnace uses 6.6 kW power and maintains 1200°C *SC. Closer temperature tolerances are available as well as higher temneratures up to 1500%.
The Crvoeenics Division of Tnternational Controls Corporation, New Jersey, USA, have recently announced a number of cryogenic control instruments as well as a liquid nitrogen cold trap designated the Cryosump. The Model 30 Cryosump is designed to significantly upgrade the actual performance of mechanical vacuum pumps in terms of both ultimate pressure and pumping speed. The trap consists of an in-line liquid nitrogen cooled sphere of copper, electroless nickel plated, providing uniform temperature over the entire trapping surface independent of variations in the liquid nitrogen level. Blanked-off ultimate pressures of 2~ lo-” torr have been achieved with this unit. Apart from the sphere,. construction is in stainless steel with individual fill and vent connections. The fill line includes an integral phase separator which minimizes filling turbulence. The Cryosump is intended for use with mechanical pumps having capacities up to 50 cfm in applications such as pumping over cryogenic fluids, lowering forepump pressure in diffusion pumped systems and attaining system working pressures of lo--’ to lo-’ torr without diffusion pumps. International Controls Corp, Cryogenics
Khs Schakffer Gmbe, Germany Circle number 56 on Reader Enquiry Service card
Laboratory
high vacuum furnace
Centorr Associates Inc, Suncook, New Hampshire, USA have introduced their Series 18, bell jar vacuum furnace, designed principally for research laboratories. The Series 18 model readily converts any standard bell jar system into a high temperature vacuum furnace. Requiring only sources of cooling water and electric power, temperatures of up to 3000% may be obtained at pressures in the submicron range. The unit is mounted on its own feedthrough collar for rapid changing. It is available in two basic sixes 14 inches diameter by 3 inches high and 2+ inches diameter by 5 inches high.
those used in colour television equipment must be cast under stringent vacuum conditions. Arthur Pfeiffer Hochvakuumtechnik GmbH, Wetzlar, Germany, have developed a series of casting machines designed for the production of electrical equipment. These machines have the advantage of accurate dosage up to 1 g amounts. Polyester or epoxy resins may be cast automatically and the machines require only a single operator. The casting machine consists of storage containers for the resin, hardener and accelerator with multiple dosage pumps delivering the ingredients to a vacuum mixing chamber after which the final dosing device automatically transfers the correct amounts to the moulds. Casting quality and time
Centorr Associates Inc, USA Circle number 57 on Reader Enquiry Service card
Vacuum resin casting plant
The
smallest
transformers,
particularly
Division, USA Circle number 55 on Reader Enquiry Service card High vacuum furnace
Klaus Schaeffer GmbH. of Frankfurt, Germany, have announced the introduction of a new high vacuum furnace suitable for sintering, vacuum brazing and annealing at temperatures up to 1200°C. The working space is formed by a tube of about 40 inches long and 4 inches id, closed at one end. Utilizing resistance heating, an 18 inch long zone of uniform temperature may be obtained. A Genevac 4 inch pumping system and control equipment are built into the iron framework housing the furnace. Pumping is by an 8 ft*/min forepump with an ultimate pressure of 5 x 1O-s torr and a 300 litre/sec diffusion pump with an ultimate pressure of lo-’
Centorr high vacuum furnace
Pfeifler vacuum casting plant
news
The Cryosump
Schaeffer high vacuum furnace
Liquid nitrogen cold trap
torr. The furnace uses 6.6 kW power and maintains 1200°C *SC. Closer temperature tolerances are available as well as higher temneratures up to 1500%.
The Crvoeenics Division of Tnternational Controls Corporation, New Jersey, USA, have recently announced a number of cryogenic control instruments as well as a liquid nitrogen cold trap designated the Cryosump. The Model 30 Cryosump is designed to significantly upgrade the actual performance of mechanical vacuum pumps in terms of both ultimate pressure and pumping speed. The trap consists of an in-line liquid nitrogen cooled sphere of copper, electroless nickel plated, providing uniform temperature over the entire trapping surface independent of variations in the liquid nitrogen level. Blanked-off ultimate pressures of 2~ lo-” torr have been achieved with this unit. Apart from the sphere,. construction is in stainless steel with individual fill and vent connections. The fill line includes an integral phase separator which minimizes filling turbulence. The Cryosump is intended for use with mechanical pumps having capacities up to 50 cfm in applications such as pumping over cryogenic fluids, lowering forepump pressure in diffusion pumped systems and attaining system working pressures of lo--’ to lo-’ torr without diffusion pumps. International Controls Corp, Cryogenics
Khs Schakffer Gmbe, Germany Circle number 56 on Reader Enquiry Service card
Laboratory
high vacuum furnace
Centorr Associates Inc, Suncook, New Hampshire, USA have introduced their Series 18, bell jar vacuum furnace, designed principally for research laboratories. The Series 18 model readily converts any standard bell jar system into a high temperature vacuum furnace. Requiring only sources of cooling water and electric power, temperatures of up to 3000% may be obtained at pressures in the submicron range. The unit is mounted on its own feedthrough collar for rapid changing. It is available in two basic sixes 14 inches diameter by 3 inches high and 2+ inches diameter by 5 inches high.
those used in colour television equipment must be cast under stringent vacuum conditions. Arthur Pfeiffer Hochvakuumtechnik GmbH, Wetzlar, Germany, have developed a series of casting machines designed for the production of electrical equipment. These machines have the advantage of accurate dosage up to 1 g amounts. Polyester or epoxy resins may be cast automatically and the machines require only a single operator. The casting machine consists of storage containers for the resin, hardener and accelerator with multiple dosage pumps delivering the ingredients to a vacuum mixing chamber after which the final dosing device automatically transfers the correct amounts to the moulds. Casting quality and time
Centorr Associates Inc, USA Circle number 57 on Reader Enquiry Service card
Vacuum resin casting plant
The
smallest
transformers,
particularly
Division, USA Circle number 55 on Reader Enquiry Service card High vacuum furnace
Klaus Schaeffer GmbH. of Frankfurt, Germany, have announced the introduction of a new high vacuum furnace suitable for sintering, vacuum brazing and annealing at temperatures up to 1200°C. The working space is formed by a tube of about 40 inches long and 4 inches id, closed at one end. Utilizing resistance heating, an 18 inch long zone of uniform temperature may be obtained. A Genevac 4 inch pumping system and control equipment are built into the iron framework housing the furnace. Pumping is by an 8 ft*/min forepump with an ultimate pressure of 5 x 1O-s torr and a 300 litre/sec diffusion pump with an ultimate pressure of lo-’
Centorr high vacuum furnace
Pfeifler vacuum casting plant