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66results about How to "Fast transition" patented technology

Resistive random access memory based on organic/inorganic hybrid perovskite material and fabrication method of resistive random access memory

The invention discloses a resistive random access memory based on an organic / inorganic hybrid perovskite material and a fabrication method of the resistive random access memory. The resistive random access memory comprises a bottom electrode, a top electrode and a resistance changing functional layer material, wherein the resistance changing functional layer material is arranged between the bottom electrode and the top electrode and comprises one layer or multiple layers of organic / inorganic hybrid perovskite thin film materials. The fabrication method comprises the following steps of (1) cleaning a substrate; (2) depositing the bottom electrode on the substrate by employing a physical vapor deposition technique; (3) forming the organic / inorganic hybrid perovskite thin film material on the bottom electrode as a resistance changing functional layer by techniques such as spin coating, dip coating and vacuum evaporation; and (4) depositing the top electrode on the resistance changing functional layer by employing the physical vapor deposition technique. According to the resistive random access memory, the structure is simple, and low-temperature and low-cost fabrication can be carried out; and the fabricated device has the technical advantages of large memory window, low conversion voltage, high conversion speed, multi-value storage capability, favorable thermal stability and device durability and the like.
Owner:GRIMAT ENG INST CO LTD

High performance cutting pick and manufacturing method thereof

The invention provides a high performance cutting pick and a manufacturing method thereof, the high performance cutting pick comprises a tooth tip and a tooth body. The tooth body is high-strength, high-toughness and high-wear-resistance steel. The chemical components are as following by weight percent, 0.30 to 0.40 of C, 2.30 to 2.50 of Si, 2.20 to 2. 60 of Mn, 0.80 to 1.50 of Cr, 0.35 to 0.45 ofMo, 0.01 to 0.1 of Re, 0.02 to 0.04 of Nb, less than 0.01 of S, less than 0.01 of P, and the rest of Fe. After raw materials are refined and cast to obtain steel ingots or subjected to continuous casting to obtain continuous casting billets, after being rolled into round steel, cutting and annealing are conducted, and finally a cutting pick body is obtained by cold forging. The tooth tip is prepared from cemented carbide and welded to the tooth body by medium frequency induction heating. After cooling, austempering treatment is conducted, and finally discharging and air-cooling to room temperature are conducted. The finally obtained tooth body has tensile strength sigma b of 1700 to 2000MPa, yield strength sigma s of 1100 to 1520MPa, elongation delta of 16 to 35%, section shrinkage phi of45 to 55%, impact work Aku of 55 to 90 J, hardness HRC of 53 to 62, and strong plastic product of 32 to 51 GPa.%. The microstructure of the tooth body is a nano-carbide-free bainite-martensitic multiphase organization, and the thickness of a substructure slat is 10 to 50 nm.
Owner:鄂尔多斯市神东天隆矿山机械有限责任公司 +1

High-temperature phase-transitional temperature-sensitive fire-extinguishing gel and preparation method thereof

The invention relates to a high-temperature phase-transitional temperature-sensitive fire-extinguishing gel and a preparation method thereof. Through the physical crosslinking between polyacid with a hydrophilic backbone structure and polyamine with a hydrophobic backbone structure, the fire-extinguishing gel is in a soluble state at a low temperature and in a gel state at a high temperature. The fire-extinguishing agent is a low-viscosity aqueous solution at normal temperature; the viscosity is gradually increased as the temperature rises, and then the aquagel is formed and adhered on the surface of burning objects, thus the effect of fire-extinguishing is achieved and the fire behavior is blocked from spreading; after the temperature of the gel is lowered to a certain temperature, the gel is returned to the state of liquid, the residue can be cleaned by using water for flushing, thereby being efficient and environment-friendly. The fire-extinguishing agent provided by the invention has low viscosity, can be spouted by using the traditional squirt gun; meanwhile, other elements, such as fire-proofing agent, flame retardant, and the like, can be added to improve the fire-extinguishing performance of the fire-extinguishing agent.
Owner:SHANGHAI UNIV +1

Self-propelled green hedge trimmer and use method

The invention relates to a self-propelled green hedge trimmer and a use method. The problems that an existing green hedge trimmer is not flexible in trimming knife operation angle adjustment and inconvenient to operate, and has difficulty in trimming beveled green hedges and landscape trees with certain height are solved. The angle, relative to the base, of a long arm rotating arm is adjusted through telescoping of the first stage hydraulic cylinder; the height and angle, relative to the long arm rotating arm, of a middle arm rotating arm is adjusted through telescoping of a second stage hydraulic cylinder; a sleeve is fixedly connected to the other end of the middle arm rotating arm, a fan-shaped gear is installed on the side wall of the middle arm rotating arm, the bottom of a cylinder body of a third stage hydraulic cylinder is hinged to the middle arm rotating arm, the tail end of a piston rod of the third hydraulic cylinder is hinged to the fan-shaped gear, the head end of a shortarm overturning arm is installed on the sleeve, and a saw blade is installed at the tail end of the short arm overturning arm; overturning of the short arm overturning arm is achieved through telescoping of the third stage hydraulic cylinder. Accordingly, the green hedge can be trimmed at different slopes and certain height.
Owner:HARBIN UNIV OF SCI & TECH

Woodworking cutting and punching all-in-one machine

The invention provides a woodworking cutting and punching all-in-one machine, belongs to the technical field of machinery, and solves the technical problems of low production efficiency and the like due to that cutting and punching are realized on different equipment respectively in the prior art. The woodworking cutting and punching all-in-one machine comprises a rack, wherein an electric saw and a main guide rail are arranged on the rack; a main supporting plate is slidably connected to the main guide rail; an electric drill is arranged on the main supporting plate; a charge workbench is fixed on the rack; a transfer mechanism I is arranged on the rack; a punching workbench is further fixed on the rack; the electric saw is located between the charge workbench and the punching workbench; a transfer mechanism II is further arranged on the rack; the main guide rail is located at one side of the punching workbench and the slide direction of the main guide rail is the same as the left-right direction of the rack; and the charge workbench and the punching workbench are located at positions on the same straight line or located at parallel staggered positions or located at inclined positions. According to the woodworking cutting and punching all-in-one machine provided by the invention, cutting and punching for wood are combined on one piece of equipment, thus the production efficiency can be increased.
Owner:TAIZHOU EVOK MASCH CO LTD

Method for improving weather resistance of decorative base paper titanium dioxide

The invention provides a method for improving weather resistance of decorative base paper titanium dioxide, and belongs to the technical field of decorative base paper titanium dioxide. The control is performed through salt treatment and calcination. The method comprises the following steps of A, using bleached slurry as raw materials; adding titanium dioxide sol into the raw materials; controlling the addition to meet the requirement that the proportion of TiO2 in the titanium dioxide sol to TiO2 in metatitanic acid is 2 to 6 percent; performing water washing; diluting the slurry subjected to water washing into 300 to 400g / L TiO2 slurry; B, adding potassium and phosphorus solution with the K2O / P2O5 ratio being 1.3 to 4.0 into the diluted slurry; performing stirring; adding aluminum-containing compound solution according to the Al2O3 to TiO2 proportion being 0.3 to 0.9 percent; performing stirring; C, performing pressurized filtering on the slurry material treated by the step B until the filter cake solid content is 45 to 55 percent; C, roasting the filter cake in the step C for 8 to 10h at the roasting temperature of 200 to 950 DEG C. Through the control on the salt treatment and roasting processes, the primary product weather resistance of the decorative base paper titanium dioxide is improved; the weather resistance of the decorative base paper titanium dioxide is further improved.
Owner:HEBEI MILSON TITANIUM DIOXIDE
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