4results about How to "Evenly distributed and orderly" patented technology

The utility model relates to the technical field of production of brazed diamond grinding wheels, in particular to a diamond abrasive grain orderly arranging device for a brazed diamond grinding disc, which comprises a working frame, belt pulleys are rotatably connected to two sides of the inner wall of the working frame, a belt is in transmission connection with the surface of each belt pulley, and the belt is connected with the working frame. Electromagnets distributed in equal columns are arranged on the surface of the belt, and a driving mechanism is arranged on the surface of the working frame; wherein the driving mechanism comprises a material box fixedly connected to the inner wall of the working frame, and an auger conveying barrel is arranged on the inner wall of the material box; according to the device, the driven block, the driving block and the arrangement frame are utilized, reciprocating shaking of the arrangement frame on diamond abrasive particles is achieved, it is guaranteed that the diamond abrasive particles can be evenly distributed in the arrangement frame, scraping of the reciprocating shaking diamond abrasive particles is achieved through a scraping plate, and therefore the effect that the diamond abrasive particles are evenly distributed in the arrangement frame is improved; therefore, the diamond abrasive particles can be uniformly and orderly distributed on the grinding wheel.

The present invention provides a copper / graphene composite material and its preparation method and application. The preparation method includes: growing graphene by chemical vapor deposition on the surface of a mixed powder of copper powder and nano-magnesium oxide; obtaining a composite powder of copper / graphene / nano-magnesium oxide, removing the nano-magnesium oxide in the composite powder, and obtaining a copper / graphene composite powder; then performing vacuum hot pressing sintering to obtain a copper / graphene composite preform; melting the copper material and the copper / graphene composite preform, stirring, vacuum down-casting, drawing, and annealing. The present invention grows graphene by chemical vapor deposition, and cooperates with vacuum hot pressing sintering and vacuum down-casting processes to achieve the coordination of structural integrity and uniform dispersion of graphene in the composite material, so that the bonding strength of graphene and copper matrix is ​​greatly improved, and the strength and electrical conductivity of the composite material are improved, so that it has broad application prospects in high-temperature service scenarios.

The invention relates to the technical field of negative electrode materials, in particular to a graphene copper mixed electrolyte, a graphene metal composite material and a conductor. The graphene and copper mixed electrolyte comprises graphene, copper salt, acid, a displacement agent and a dispersing agent, the displacement agent comprises at least one of polyether and sulfydryl imidazoline, and the concentration of the displacement agent is 5-20 mg / L. According to the graphene and copper mixed electrolyte system provided by the invention, copper ions and graphene can be deposited more compactly and flatly, the content and spacing of graphene are controlled within a certain range, and the purpose of improving the tensile strength of the copper foil is achieved; the graphene metal composite material provided by the invention has relatively high tensile strength; a conductor prepared by adopting the graphene metal composite material provided by the invention not only has relatively good conductivity, but also has relatively high tensile strength, and can effectively cope with thinner application scenes with relatively large tensile force.

The utility model relates to motor technical field, and disclose a kind of double-winding switching type energy-saving motor stator structure, including stator slice, the stator slice top is equipped with two groups of into line mouth of opposite fan-shaped equidistance distribution, into line mouth each group is equipped with ten, the stator slice is close to into line mouth top and is equipped with two groups of second into line mouth of opposite fan-shaped equidistance distribution, second into line mouth each group is equipped with two, second into line mouth between two groups of into line mouth, the device is switched and adjusted by the mutual cooperation of above-mentioned structure, significantly improve the space utilization of motor and the rationality of winding layout, the setting of double winding can be according to different work requirements, enhance the flexibility of motor and the adaptability to variable working condition, more practical.