Titanium pump, is the selection of equipment manufacturing, the use of titanium and titanium alloy has a corrosion-resistant, a small proportion of high strength, high temperature low mechanical properties of good overall characteristics of the flow components, impeller and packing Integrated seals and other nodes using titanium or titanium alloy manufacturing. Now to introduce the performance of titanium pump and outgassing mechanism. Titanium pump, titanium pump performance 1. Ultimate pressure: 10-8 Pa. 2. Start pressure: 10-2 Pa. 3. pumping speed: pumping speed of titanium pump and anode voltage and magnetic field strength, pumping speed is strong when the magnetic field is strong, corresponding to the optimal pumping speed of the anode voltage is high. Common titanium pump pumping speed 25 liters / second, 5 liters / second. For situations requiring a large pumping speed, pumping speed can reach 50 liters / second, 100 liters / second and so on in parallel with the basic structural units. 4. Titanium pump life: a, cathode depleted life, the cathode due to sputtering through the titanium plate so that the pump can not be used. b, the anode spalling life, the anode deposited titanium film thickness is too large will produce spalling, resulting in irregular strong pressure changes in the pump, so that the pump can not be used. c, anode sucking life, the anode adsorbed and dissolved a lot of helium, hydrogen, when the pump can not be reached when the saturated gas adsorption. In normal use, sputtering ion pump life of up to tens of thousands of hours. Second, the titanium pump degassing mechanism 1. Removal of the active gas on N2, O2, CO and CO2 and other gases excluded mainly by deposition on the inner wall of the anode cylinder titanium film chemisorption. 2. The extraction of hydrogen Hydrogen removal of chemical adsorption, but also diffusion, absorption, dissolution. 3. The removal of inert gas Exclusion of inert gas, mainly by ion "buried" by ionized inert gas ions bombard the cathode, the following three conditions: a, ions directly into the cathode, or into B, oblique ions into the cathode surface, the ions and titanium were thrown off and deposited around the cathode plate or elsewhere; c, the ions did not break into the plate, However, electrons are obtained from the cathode and recombined into neutral atoms, which are then reflected into the titanium film on the inner surface of the anode. Further Reading: pump valve pipe fittings Exhibition 2016 Exhibition of Information Industry, Internet (Xiamen) Technology Co., Ltd. Author: Asian pumps Network Editor: Yao Xiaoxia (QQ / micro letter:) http://beng.liuti.cn/ (Hotline :)
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