If the oil of vacuum oiling equipment is mixed with other oil or solvent or water, its performance will be damaged and the performance index of vacuum pump will be affected. The rubber ring shall be wiped clean and carefully checked for defects and cracks, and whether the size is correct. The wrong size will affect the sealing. The rubber ring with heating position must be replaced every time it is disassembled and cleaned. For example, each interface of oil booster pump, the pump parts also need to be handled with care during assembly; Tighten the screws evenly and tighten them diagonally. Dynamic seals are mostly used for shaft seals. Be careful when putting on the shaft seal. First check whether the shaft seal itself has defects, whether the sealing surface is flat, and how elastic the shaft seal spring is. A thin layer of vacuum grease can be coated on the inner side of the shaft seal. Apply equal force when putting on the shaft seal. The skeleton shaft seal should not be biased, which will leak oil and air. Don't squeeze the shaft seal spring in, and the shaft seal will fail without the shaft seal spring.

The microwave drying and sterilizing machine is a tunnel track microwave drying equipment. Its main transmission mechanism is connected with the passive transmission mechanism through the conveyor belt. The microwave cavity is located on the main transmission mechanism and the passive transmission mechanism, the electrical box is above the microwave cavity, and the oil transformer box is at the two top corners on one side of the rectangular electrical box. It can effectively improve energy efficiency and reduce environmental pollution. It is a green material drying process. It takes time for the central part to reach the required temperature, and it takes longer for objects with poor thermal conductivity. These traditional drying methods have the characteristics of long time, large power consumption, uneven heating, turning up and down, and high labor intensity. Microwave energy drying is characterized by microwave energy. Microwave energy can penetrate the inside and outside of the object and heat at the same time. The frequency is 2450MHz. With 2.45 billion oscillations per second, water molecules also oscillate 2.45 billion times. Molecules rub with each other to generate heat and heat themselves.

This is the main feature of microwave drying. Because microwave has great penetration ability, heat can be directly generated in the medium during heating. No matter how complex the shape of the green body is, the heating is also uniform and fast, which makes the green body dehydrate quickly, demould evenly, deform less, and it is not easy to produce cracks. Microwave heating is related to the nature of the material itself. In the microwave field of a certain frequency, because the dielectric loss of water is greater than that of other materials, the heat absorption of water is much greater than that of other dry materials; At the same time, because microwave heating is carried out both inside and outside, the internal water can be heated quickly and evaporated directly, so that the ceramic body can be heated and demoulded in a very short time. Responsive. Because the heat comes directly from the inside of the dry material, the heat loss in the surrounding medium is very small. In addition, the microwave heating chamber itself does not absorb heat and microwave, and all of it emits and acts on the green body, so the thermal efficiency is high.