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66results about How to "Sufficient load" patented technology

Copper nano-particle/black phosphorus nano-sheet composite material, preparation method and application thereof

The invention discloses a copper nano-particle/black phosphorus nano-sheet composite material, and a preparation method and an application thereof. The composite material includes a carrier, black phosphorus nano-sheet, and copper nano-particles supported thereon. The preparation method includes the steps of: firstly dispersing the black phosphorus and NaOH in organic solvent to obtain a mixture liquid, performing a reaction to the mixture liquid in a supercritical reaction kettle at 40-70 DEG C under 15-20 MPa for 3-4 h to obtain the black phosphorus nano-sheet; then mixing the black phosphorus nano-sheet with a copper phase solution to perform a reaction at 50-60 DEG C for 10-120 min to prepare the composite material which is applied to electrochemically catalytically reducing CO2. The composite material has large specific surface area, is large in support quantity of the copper nano-particle and has great crystallization performance and catalytic performance, is simple in preparation method and low in cost and is environment-friendly. The composite material, when being applied to electrochemically catalytically reduce CO2, is high in catalytic activity and stability and has lowimpressed voltage.
Owner:NANJING UNIV OF POSTS & TELECOMM

Test device and method for researching friction characteristics between tire and actual pavement

PendingCN109612929AExtended service lifeEliminate the influence of other additional loads such as centrifugal forceUsing mechanical meansVehicle tyre testingWear patternRoad surface
The invention discloses a test device and method for researching friction characteristics between a tire and an actual pavement, and belongs to the technical field of detecting equipment. Actual working conditions of the tire with load running on different pavements are well simulated through mechanical structures such as a loading sleeve, a loading sleeve base, a rotary arm and a rack, the test device and method for researching friction characteristics between the tire and the actual pavement can be used for testing a friction factor between the tire and the pavement and researching wear pattern between the tire and the pavement, compression amount of a loading spring can be adjusted through a loading screw according to requirements, and thus a test load is adjusted; meanwhile tire running speed is adjusted through a transmission system; changing is conducted on a slip rotary rate or a slip shift rate between the tire and a pavement through adjusting a connected relation between a tested wheel and an auxiliary wheel, multiple kinds of running conditions of the tire on the pavement are simulated, data such as the load, a rotate speed and a torque are detected in real time through asensor, and thus the friction factor between the tested tire and the tested pavement is obtained by formula calculation.
Owner:西安凯德液压机电有限责任公司
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