39results about How to "Realize the conductive function" patented technology

The invention discloses a preparation method of graphene dry powder for LFP (lithium ferric phosphate) anode paste. The preparation method of graphene dry powder for LFP anode paste comprises the following steps: (1) putting a baked graphene layer into a stirrer, diluting by using NMP (N-methyl pyrrolidinone), and stirring at a low speed till the material is at a wet powder state; (2) adding the baked anode active substances of LFP, SP and PVDF (polyvinylidene fluoride) into the graphene wet powder, and stirring continuously at a low speed for 1-2 hours, thereby preparing anode premix; (3) diluting by using NMP, and stirring the anode premix at a low speed till the anode premix is at a wet powder state and the solid content of the premix is 80%-90%; (4) diluting the premix at the wet powder state by using NMP until the solid content is around 65%, and stirring the premix at a high speed until each component is uniform and dispersive, thereby preparing a mixed material; and (5) beginning to dilute the mixed material when the mixed material generates a pole climbing phenomenon, controlling the solid content of the mixed material to be around 49%, and stirring at a high speed so as to prepare the required paste. The preparation method provided by the invention can effectively disperse graphene and each component of other anode materials without adopting any additive for helping the graphene to disperse, and reduces the influence on the battery performance of substances of the type of additives.

The invention provides a positioning device with conductive function, which includes a mounting plate, an opening is opened on the mounting plate, a positioning mechanism is installed above the mounting plate, a guide shaft is arranged below the mounting plate, and the guide shaft passes through There is a first spring, and a pressure plate is installed below the guide shaft; a round hole is opened on the pressure plate corresponding to the position of the guide shaft, a conductive copper sleeve is arranged above the pressure plate, and the upper end of the conductive copper sleeve is connected to the first soft conductive belt, The other end of the first conductive soft belt is connected to the positioning mechanism; a wedge is arranged outside the conductive copper sleeve, and the wedge is fixed on the pressing plate, and the upper part of the wedge is in contact with the positioning mechanism; the pressing plate An indenter is arranged below the indenter, and the connection end of the second soft conductive belt is fixed under the indenter, and the indenter and the second soft conductive belt are fixed on the cylinder. The invention only needs one power source to realize the positioning function and the conductive function, has a simple structure, saves control programs, reduces costs, and improves production efficiency.

The invention discloses a grounding protection device and a protection method for a vehicle frame, which is characterized in that it includes a mounting hole arranged at the position of the grounding point on the vehicle frame, and a bolt is inserted in the mounting hole during electrophoresis, and the A cap nut covering the protruding end is connected to the protruding end, and a flat washer placed between the cap nut and the vehicle frame is arranged on the bolt. The vehicle frame ground iron protection device and protection method of the present invention have simple structure and simple operation, can not damage the matrix material, and at the same time help to realize the conductive function of the ground iron point, and have strong practicability and good application prospects.

The invention discloses a method for preparing epoxy resin composite materials from recycled circuit board materials, comprising raw materials, 20-30 parts of circuit board recycled materials, 30-40 parts of epoxy resin prepolymer, and 10-20 parts of curing agent; The method, step A1, breaks the recovered material of the circuit board into small pieces, boils it in a sodium hydroxide solution, washes and dries it with water, then soaks it in an acidic solution, and then carries out a hydrometallurgical method to obtain a metal compound precipitation from the soaking solution ; Step A2, put the metal compound precipitation and sulfur powder into the flask, add DMF, stir until dissolved, add the mixed solution of triethylenetetramine and ethylenediamine and polyvinylpyrrolidone, in a nitrogen atmosphere at 150‑160 °C Reflux reaction for 5-6 hours to prepare modified nanocrystals; step A3, heating the epoxy resin prepolymer to a molten state, adding modified nanocrystals and curing agent for 3-4 hours to prepare epoxy resin composite material .

The invention provides a method of manufacturing a conductive PCM plate, which comprises the following steps: (1) substrate pretreatment: degreasing a substrate through a degreasing tank I and a degreasing tank II, washing the substrate through a washing process, and passivating the substrate; (2) front paint layer applying: coating the substrate after pretreatment with a front paint layer in a coating room, drying the front paint layer in an oven, and curing the front paint layer; (3) back conductive back paint applying: coating the passivated substrate with conductive back paint in the coating room, and drying the conductive back paint in the oven; (4) rolling and cutting: rolling up a roll material, and cutting the roll material into corresponding material pieces of fixed length according to the material requirement; (5) paint layer removing: removing the finishing paint layer and priming paint layer on the front by laser; and (6) protective film applying: cleaning up powder and impurities caused by laser, and applying a corresponding protective film according to the surface property of the coating. Through the method, the problem that local conduction in any area cannot be realized through the conductive PCM plate manufacturing method in the prior art is solved.

The invention provides an anticorrosion conductive coating for a grounding grid and a preparation method thereof. The anticorrosion conductive coating for the grounding grid is prepared by mixing two components A and B in site according to a mass ratio of 100:2 to 100:8, wherein the component A is prepared by mixing the following substances in percentage by mass and filtering the mixture by a filter screen with a specification of 60 to 100 meshes: 8 to 15 percent of n-butyl acetate, 8 to 15 percent of cellulose acetate butyrate, 8 to 15 percent of natural asphalt, 8 to 15 percent of benzene mixture, 3 to 5 percent of conductive mica powder, 9 to 11 percent of nano graphite powder, 8 to 12 percent of isophorone, 0.3 to 0.7 percent of nano silver powder, 20 to 25 percent of fluorocarbon resin, 3 to 7 percent of propylene glycol methyl ether acetate, 0.1 to 0.3 percent of dispersing agent 923s, 0.05 to 0.15 percent of antifoaming agent 5500 and 0.05 to 0.15 percent of leveling agent 455; the component B is prepared by mixing 20 to 30 percent of a curing agent 3390, 20 to 30 percent of a curing agent TPA-90SB and 40 to 60 percent of n-butyl acetate.