Best vacuum annealing furnace
The vacuum annealing furnace uses a vacuum system in a specific space of the furnace chamber to be assembled by vacuum pump, vacuum measuring device, vacuum valve and other components, and discharges some substances in the furnace chamber, so that the pressure in the furnace chamber is less than a standard atmospheric pressure. The space inside the furnace chamber is thus in a vacuum state, which is a vacuum furnace.
The vacuum furnace generally consists of a main machine, a furnace, an electric heating device, a sealed furnace shell, a vacuum system, a power supply system, a temperature control system, and an outside transport vehicle. The sealed furnace shell is welded with carbon steel or stainless steel, and the joint surface of the detachable member is sealed with a vacuum sealing material. In order to prevent deformation of the furnace shell after heating and deterioration of the sealing material, the furnace shell is generally cooled by water or air cooled. The furnace is located in a sealed furnace shell. Depending on the furnace application, different types of heating elements, such as resistors, induction coils, electrodes and electron guns, are installed inside the furnace. The vacuum furnace furnace for melting metal is equipped with crucibles, and some are equipped with automatic pouring devices and robots for loading and unloading. The vacuum system is mainly composed of a vacuum pump, a vacuum valve and a vacuum gauge.
Best Vacuum annealing furnace advantages:
1. The oxidation and decarburization of the surface of the workpiece during heating are completely eliminated, and a clean surface without a deteriorated layer can be obtained. This is extremely relevant for those tools that only grind one side during sharpening (for example, the twisted surface of the groove surface is directly exposed to the cutting edge after the twist drill is ground, and the cutting performance is greatly improved.
2, no pollution to the environment, no need to carry out three waste treatment.
3. The furnace temperature measurement and monitoring accuracy are obviously improved. The indicated value of the thermocouple and the furnace temperature reached ±1.5 °c. However, the temperature difference between different parts of the workpiece in the furnace is large. If the lean gas is used for forced circulation, it can still be controlled within the temperature range of ±5 °c.
4. High degree of mechatronics. On the basis of the improvement of temperature measurement and control precision, workpiece movement, air pressure adjustment, power adjustment, etc. can be pre-programmed, and quenching and tempering are carried out according to the steps.
5. The energy consumption is significantly lower than that of the salt bath furnace. The modern and advanced vacuum furnace heating chamber is made of high-quality insulation materials and insulation walls and barriers, which can concentrate the electric heating energy in the heating room, and the energy saving effect is remarkable.