On 2018-08-08 14:48:54
2018 Heat Treatment International Specialized Exhibition on Technologies and Equ
On 2018-08-08 11:45:46
The second-hand vacuum furnace is a second-hand equipment company. The second-hand vacuum gas quenching furnace adopts graphite heater, and the hard graphite felt is a single horizontal type heat insulation screen. Fengdong high pressure gas quenching vacuum furnace consists of main body of vacuum furnace, vacuum system, water cooling system, air charging system, starting system, relay control system, etc. The gas quenching vacuum furnace has a visual operation interface, which is convenient and simple to operate. It can switch between manual and automatic freely, and can realize automatic control.
Most heating and insulation materials can only be used in vacuum
The heating and heat insulation lining materials of vacuum gas quenching furnace work under vacuum and high temperature. Therefore, the requirements of high temperature resistance, low steam pressure, good radiation effect, small thermal conductivity and so on are put forward for these materials. Therefore, tungsten, platinum and graphite are widely used as heating and heat insulation materials in vacuum heat treatment furnace. These materials are easy to track in atmospheric state Therefore, conventional heat treatment furnace can not use this kind of heating and heat insulation material.
Adopt low voltage and high current
In the vacuum heat treatment furnace, the arc discharge will occur seriously, which will burn the electric heating elements and heat insulation layer, causing serious accidents and reporting losses. Therefore, the working voltage of the electric heating elements in the vacuum gas quenching furnace is generally not more than 80-100 v. at the same time, the structural design of the electric heating components should be adopted Effective measures, such as avoiding the tip of the parts, the distance between the electrodes should not be too narrow to prevent the occurrence of glow discharge or arc discharge.
Set water cooling device according to different conditions
The water-cooling device, the shell, cover and electric heating element of the vacuum gas quenching furnace, respectively dispose of (water-cooled electrode), intermediate vacuum heat insulation door and other parts, all work under vacuum and heating conditions. Under such extremely unfavorable conditions, it is necessary to ensure that the structure of each component will not be deformed or damaged, and the vacuum sealing ring will not overheat or burn out. Therefore, each component should be based on different conditions Water cooling device is set to ensure that the vacuum gas quenching furnace can operate normally and have enough service life.
The above is a small series to tell you about the second-hand vacuum gas quenching furnace in the use of the need to pay attention to matters, after you read it is not understood, in the use of traditional Chinese medicine to remember the above points, if you have any questions, please consult us specifically.