Diffusion pump oil basic requirements _ Diffusion pump oil Precautions

[Asia Pump Network News] Diffusion pump oil, as its name implies, is used to spread the pump pump oil. Diffusion pump on the oil quality requirements more stringent, because the nature of the diffusion pump oil diffusion pump suction performance is particularly large, so there are some basic requirements for diffusion pump oil. Here, Xiaobian to introduce the basic requirements for diffusion pump oil and its precautions. Diffusion pump oil basic requirements: 1, diffusion pump oil molecular weight to be large, this is to reduce the pump limit pressure; 2, diffusion pump oil saturated at room temperature, vapor pressure is low, so that the pump at a high outlet pressure Under the work; 3, diffusion pump oil saturated at boiling temperature, the vapor pressure should be as large as possible, the thermal stability of the pump oil (high temperature is not easy to break down) and anti-oxidation (contact with the atmosphere will not change due to oxidation pump oil Performance) is better; 4, Diffusion pump oil freezing point and low temperature viscosity is low; 5, Diffusion pump oil is non-toxic, corrosion-resistant, low cost. Diffusion pump oil Note: First, the proliferation of pump oil should be sealed storage, are not allowed to mix other oils, moisture and impurities. Second, the oil should be anti-diffusion pump with 120 solvent gasoline cleaning, drying, adding a predetermined amount of diffusion pump oil. Third, after adding new oil if the ultimate pressure or pumping speed does not meet the requirements, should check whether the vacuum system leaks, the nozzle assembly is correct, the former vacuum, the boiler heating voltage, measuring regulation, instruments and wires, etc. are normal. On the basic requirements of diffusion pump oil and its precautions, Xiao Bian introduced to this. In view of the diffusion pump on the strict quality requirements of oil in the purchase of diffusion pump oil should pay special attention, so as not to buy inferior products, thus affecting the proliferation of pump efficiency.