On the surface of DIN17175 15Mo3 grade seamless steel tube, the undissociated gas cannot pass through, so high purity hydrogen can be obtained by using DIN17175 15Mo3 grade seamless steel tube.
Although palladium has unique permeability to hydrogen, its mechanical properties are poor, and it is easy to be oxidized at high temperature and recrystallized at low temperature. Therefore, it is easy to deform and brittle the DIN17175 15Mo3 grade seamless steel tube.
Stay under 300-500℃, the purified hydrogen bubbled into DIN17175 15Mo3 grade seamless steel tube side, the hydrogen adsorption in DIN17175 15Mo3 grade seamless steel tube wall, as a result of the palladium 4d shell lack of two electrons, it can generate unstable with hydrogen bonds (palladium and the reaction is reversible hydrogen), under the action of palladium, ionized hydrogen protons as the radius of 1.5 x 1015m, while palladium lattice constant of 3.88 x 10-10m (20 ℃), it can through DIN17175 15Mo3 grade seamless steel tube, under the action of palladium protons combined with electrons to form hydrogen molecules, Escape from the other side of the 15Mo3 boiler pipe.
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