vacuum equipment

How does a vacuum pump work

Vacuum furnace as a kind of processing industrial equipment, has been required by more enterprises, of course, such a special equipment, in the use of the process should also do a good job of maintenance, thus extending the life of vacuum furnace. In the process of using vacuum furnace, the following rules should be followed: First, the maintenance of vacuum furnace, must refer to the detailed maintenance instructions for use, long-term use, it must be properly maintained, the entire system should be completely discharged with cooling water. Second, in winter should ensure that the indoor temperature is above 10 degrees Celsius, only in this way can ensure that the parts of the vacuum furnace will not be damaged by freezing, anti-freezing equipment components can work in a good environment. Third, the vacuum furnace operation, the choice of 46 anti-wear hydraulic oil, the use of oil temperature is basically in the range of 15 to 60 degrees Celsius, the entire oil should

structure The vacuum furnace is generally composed of a main engine, a furnace, an electrothermal device, a sealed furnace shell, a vacuum system, a power supply system, a temperature control system and an outside conveyor. The sealed shell is welded with carbon steel or stainless steel, and the joint surface of the detachable part is sealed by vacuum sealing material. In order to prevent the deformation of the shell after heating and the deterioration of the sealing material, the furnace shell is usually cooled by water cooling or air cooling. The furnace is located in the sealed furnace shell. According to the use of the furnace, the furnace is equipped with different types of heating elements, such as resistance, induction coil, electrode and electron gun. The vacuum furnace for smelting metals is equipped with a crucible, and some are equipped with automatic pouring devices and manipulators for loading and unloading materials. The vacuum system is mainly composed of vacuum pu

Introduction to bright heat treatment: Bright heat treatment refers to the heat treatment process (mainly quenching and annealing), a less oxidized or non-oxidized heat treatment process. Gas protection or vacuum condition is adopted to avoid or reduce the oxidation of the heat treated workpiece surface in contact with oxygen, so as to achieve the brightness or relative brightness of the workpiece surface. At present, the bright heat treatment methods adopted in industry are vacuum heat treatment and controlled atmosphere heat treatment. The quality of heat treatment (especially the surface quality) is better, but the equipment is more complex and the cost is higher. How many methods of surface bright heat treatment? What are its characteristics? There are two methods for bright heat treatment of high precision parts, namely, vacuum heat treatment and protection heat treatment. The advanced method is vacuum heat treatment. Vacuum heat treatment equipment investment is larg

First, in addition to doing experiments, do not stay in the high temperature furnace area. 2. When the high-temperature furnace is finished, if no one continues to use it, please turn off the special gas, keep N2 flowing, keep the furnace tube at standby temperature, and check if there are other power sources that should be turned off, such as: clean house light, small electric stove for cooking acid or other, please turn off. 3. When dealing with HF, please wear gloves. If you encounter HF carelessly, flush immediately, add 2% water with calcium gluconate and rub the abrasion area 15'. Four, quartz glass products, please be careful to use, so as not to break, causing serious cuts. Five, avoid inhaling all kinds of gases coming from the furnace or treatment tank. Six, * * * (KCN) can not be mixed with acids, because both can produce highly toxic KCN gas. Seven, if something is found to be in the way of safety, please notify the relevant personnel immediately.

The deformation causes of precision and complex dies are often complex, but as long as we grasp the deformation law, analyze the causes, and adopt different methods to prevent the deformation of dies can be reduced, but also can be controlled. Generally speaking, the following methods can be used to prevent the heat treatment deformation of complex and complex dies. (1) reasonable selection. For precision and complex dies, micro-deformed die steels (such as air-quenched steel) with good materials should be selected. Die steels with serious carbide segregation should be reasonably forged and quenched and tempered. For larger and non-forgeable die steels, solid solution double-refining heat treatment can be carried out. (2) The design of the die structure should be reasonable, the thickness should not be too different, the shape should be symmetrical, the deformation law should be grasped for the large deformation die, the machining allowance should be reserved, and the comb

Vacuum brazing furnace needs good maintenance and maintenance in use, then how to do a good job of daily maintenance? Today Weifang vacuum furnace manufacturer sent gold to take us to understand. (1) operators should understand various parts of appearance, pump and equipment. Read and understand various manuals. (2) the water pressure of cooling water should be between 0.1 and 0.2 Mpa, and the effluent temperature is less than 45 degrees Celsius. (3) compressed air pressure ranges from 0.4 to 0.5 Mpa. (4) before starting the boiler, we should check the cylinder capacity of the maintenance gas, avoid the lack of gas filling, and replace the gas cylinder. (5) if there is any abnormal condition after starting, the reason should be immediately removed or stopped. (6) often check the backwater volume of each part. Ensure that each part has enough cooling water during operation. (7) When the equipment stops operating, the gas in the furnace should be pumped out of time, which i