Since the thermal velocities of molecules decrease with molecular weight, the pump should be increasingly effective for heavier gases. The device can also be used for separation of gaseous isotopes.doi:10.1016/B978-1-4831-9852-1.50019-0H. SCHWARZVacuum Technology Transactions...
so it is important to select right high-strength and wear-resistant concrete conveying pipes.Bases on the construction experience of ultra-high pumping of high-performance concrete in Shenzhen Kingkey Finance Center project.The selection of the material,the con-necting forms of joints in different ...
They provide optimum pumping performance with excellent light gas compression ratios. Corrosion resistant To ensure a high level of resistance to corrosion, the corrosion resistant (C) and high throughput (H-C) pumps have nickel coated rotors/stators and pump internals suitable for ion ...
Achieving Ultra-High Vacuum In order to achieve ultra high vacuum conditions, special materials and pumping procedures are needed. Seals and gaskets used between components in a UHV system must prevent even trace leakage. Therefore, nearly all such seals are all metal, with knife-edges on both ...
Product name:EV series turbomolecular pumps;Usage:Ultra high vacuum;Motor:100% Copper Wire;Type:EV-300Z/EV-300ZF;Speed:30000 RPM;Pumping Speed:300 L/s;Ultimate Vacuum:3*10^-7 Pa;communication protocol:modbus RS232/485;Weight:11kg;customized support:OEM;c
Ultra‐high vacuum pumping for 38 h at 109Torr gave rise to a deposit growth rate of 160 /h on the next baking cycle. The contamination rate was reduced to its lowest amount during baking (35 /h) when the chevron baffle was cooled throughout the pumping cycle. Using a new silicone ...
The pumping effect is based chiefly on gettering processes. Operating Principle of Sputter Ion Pumps Ions from a gas discharge impinge on the cathode of an electrode system within the pump housing thereby sput- tering the cathode material (titanium, in conventional pumps). The titanium deposits ...
However, the large consumption of binding materials, low water-binder ratio and the viscous mixture are prone to give rise to the inferior pumping capacity, pipe blockage and pipe break, thus preventing its massive appli...
The hybrid optical pumping technique can apply dense al... Y Ito,H Ohnishi,K Kamada,... - 《Aip Advances》 被引量: 13发表: 2012年 Detecting rotating magnetic fields using optically pumped atomic magnetometers for measuring ultra-low-field magnetic resonance signals From the results of rotating...
Product name:EV series turbomolecular pumps;Usage:Ultra high vacuum;Motor:100% Copper Wire;Type:EV-300Z/EV-300ZF;Speed:30000 RPM;Pumping Speed:300 L/s;Ultimate Vacuum:3*10^-7 Pa;communication protocol:modbus RS232/485;Weight:11kg;customized support:OEM;c