3results about How to "Solving Passivation Problems" patented technology

The application discloses a kind of based on nano microcrystalline metal powder and organic liquid hydride multi-medium composite slurry hydrogen storage material and its preparation method, and multi-medium composite slurry hydrogen storage material includes nano microcrystalline metal powder for hydrolysis heat production, hydrogen release endothermic organic liquid hydride and catalyst;Nano microcrystalline metal powder content is 1~40wt.%, and organic liquid hydride content is 50~95wt.%, and the content of catalyst is 1~25wt.%.The application combines the advantages of metal powder and organic liquid hydride, by covering metal powder in organic liquid hydride, on the one hand, the passivation problem of metal powder surface is solved, effectively isolates metal powder and air contact, prevents the formation of oxide;On the other hand, the heat generated by the reaction of metal and water is absorbed by organic liquid hydride, thereby improving the mass transfer efficiency, and reducing the energy loss in heat transfer process.

The application discloses a kind of catalysts for hydrogen storage material and its preparation method and application, belong to hydrogen storage material and its preparation technical field.The present application is to solve the problems such as high dehydrogenation temperature of existing magnesium-based solid hydrogen storage material and slow low-temperature kinetics.The present application is prepared by using nickel chloride hexahydrate, acetylacetone manganese, polyether P123, polyether P127, dopamine hydrochloride, 1,3,5-trimethylbenzene and ammonia as raw materials to obtain carbon as carrier wrapped with elemental Ni nanoparticle catalyst with a large number of edge dislocations, and is applied to Mg-based hydrogen storage material by ball milling method.The introduced dislocation has a dual role: not only directly accelerates the dissociation of H2 molecule, but also indirectly improves the activity of catalytic phase (Mg2NiH4 / Mg2Ni).The preparation process of the composite hydrogen storage material provided by the present application is simple and mature, and the raw materials are cheap and easy to obtain, only a small amount of MNC needs to be added to greatly improve the hydrogen storage performance of Mg, and it is convenient for large-scale industrial production.

The utility model belongs to sofa pad overlock machine field, specifically is a sofa pad overlock machine automatic cutting line device, including the overlock machine, the side surface fixed connection of overlock machine has the fixed plate, the bottom surface fixed connection of fixed plate has the cutting line subassembly, the cutting line subassembly includes the drive motor fixed connection in the work table surface close to overlock machine, the back of drive motor is equipped with the band brake structure, the output fixed connection of drive motor has the connecting rod, one end fixed connection of connecting rod has the cutting blade, and the cutting blade inside is connected with the electric heating rod, through the electric heating rod of cutting blade inside sleeve connection carries out the sustained heating to the cutting blade, makes the cutting blade under the high temperature state cut the shearing force of the cutting groove to the sewing thread and melt, effectively reduces the mechanical friction loss of blade and wire, avoids the blade passivation problem, prolongs the service life of cutting blade, and the synergies of high temperature fuse and mechanical cutting promote cutting line efficiency and the cross section flatness.