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Graphite heating automatic vacuum furnace
Product description
Select graphite heating automatic vacuum furnace on the professional vacuum furnace manufacturer, high temperature and corrosion resistance, excellent heating elements, low surface temperature of the furnace; lifting temperature rate, energy saving and environmental protection, practical effect is good, trustworthy!
As a professional manufacturer of graphite heating automatic vacuum furnace, also operating sales products are: vertical high-pressure gas quenching vacuum furnace, high-pressure high-flow rate gas quenching vacuum furnace, single-chamber high-pressure gas quenching vacuum furnace, industrial heat treatment vacuum furnace, horizontal gas quenching carburizing vacuum furnace, high-pressure gas quenching vacuum furnace, hot-wall vacuum brazing furnace, horizontal double-chamber vacuum high-pressure gas quenching furnace. Quality assurance, complete models, provide professional pre-sales, in-sales and after-sales services.
Product detail
Graphite heating automatic vacuum furnace structure
It is generally composed of main body, furnace chamber, electric heating device, sealed furnace shell, vacuum system, power supply system, temperature control system and furnace outside transportation car, etc. The sealed furnace shell is welded with carbon steel or stainless steel, and the joint surface of removable parts is sealed with vacuum sealing material. In order to prevent the deformation of the shell and the deterioration of the sealing material after heat, the shell is generally cooled by water cooling or air cooling. The furnace chamber is located inside the sealed furnace shell. Depending on the furnace application, the furnace chamber is equipped with different types of heating elements, such as resistors, induction coils, electrodes and electron guns. The vacuum furnace chamber is equipped with crucible for melting metal, and some of them are equipped with automatic pouring device and robot for loading and unloading. The vacuum system is mainly composed of vacuum pump, vacuum valve and vacuum gauge.
Advantages
Oxidation and decarburization of the workpiece surface during the heating process are completely eliminated, and a clean surface without deterioration layer can be obtained. This is more relevant to the improvement of cutting performance of those tools that are only ground on one side during sharpening (such as twist drill grinding so that the decarburized layer on the groove surface is directly exposed to the edge).
No pollution to the environment, no need for three waste treatment.
The accuracy of furnace temperature measurement and monitoring is significantly improved. The indication value of thermocouple and furnace temperature reaches ± 1.5 ° c. But the temperature difference between different parts of a large number of workpieces in the furnace is large, if the use of thin gas forced circulation, can still be controlled within the ± 5 ° c temperature difference.
Product applications
Appeared around the 1930s, in 1927 the United States made vacuum annealing furnace for electrical materials, in 1953 the vacuum self-consumption electric arc furnace was used in industry.
High temperature graphite vacuum furnace
Product detail
Graphite electrode vacuum furnace
Product description
Graphite electrode vacuum furnace that is in the furnace chamber of this specific space using vacuum system (by the vacuum pump, vacuum measuring device, vacuum valve and other components after careful assembly) will be part of the furnace chamber material discharge, so that the pressure in the furnace chamber is less than a standard atmospheric pressure, the space in the furnace chamber so as to achieve a vacuum state, this is the vacuum furnace.
Graphite electrode vacuum furnace vacuum environment for heating equipment. The furnace chamber is sealed in a metal or quartz glass enclosure and is connected to a high vacuum pump system by piping. The vacuum of the furnace chamber can reach 133×(10~10)Pa. The heating system in the furnace can be directly heated by electric resistance wire (such as tungsten wire) or by high frequency induction heating. The highest temperature can reach about 3000℃. It is mainly used for ceramic firing, vacuum smelting, degassing of electric vacuum parts, annealing, brazing of metal parts, and ceramic-metal sealing, etc.
Advantages
Oxidation and decarburization of the workpiece surface during the heating process are completely eliminated, and a clean surface without a degradation layer can be obtained. This is more relevant to the improvement of the cutting performance of those tools that are only ground on one side during sharpening (such as twist drill grinding so that the decarburized layer on the groove surface is directly exposed to the edge).
No pollution to the environment, no need for three waste treatment.
The accuracy of furnace temperature measurement and monitoring is significantly improved. The indication value of the thermocouple and furnace temperature to ± 1.5 ° c. But a large number of different parts of the furnace workpiece temperature difference, if the use of thin gas forced circulation, can still be controlled within the ± 5 ° c temperature difference.
High degree of electromechanical integration. On the basis of improved precision in temperature measurement and control, workpiece movement, air pressure adjustment, power adjustment, etc. can be pre-programmed to set the steps to implement quenching and tempering.
Energy consumption is significantly lower than that of salt bath furnace. Modern advanced vacuum furnace heating chamber using excellent insulation materials made of heat insulation wall and barrier, can be highly concentrated in the heating chamber of electric energy, energy-saving effect is significant.