I do laser vacuum tube exhaust equipment, and now the laser tube market is not very bad?
The inflatable part mostly still using small glass or metal needle valve, manual control, reading with silicone oil pressure gauge, the operator is difficult to precisely control, consistency is poor, but can not avoid oil pollution, the production department is one of the factors of instability.
Such systems can not understand the components of the tube baking or pipe when the release of what kind of gas, which makes the use of laser tubes and storage life of the lack of means of analysis
Most of the units are still in use in 50s, China's existing oil diffusion pump and mechanical pump connected to the glass vacuum exhaust system, not only complicated operation, noise, pumping speed is small, but also always can not avoid the pollution of oil vapor.
At present, the development of various kinds of gas laser tubes in our country is very fast, but the exhaust technology is extremely backward
