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323results about How to "Improve industrial production efficiency" patented technology

Method for preparing small expended and vitrified ball with reinforcing layer coated on surface

The invention relates to a method for preparing a small expended and vitrified ball with a reinforcing layer coated on the surface. By combining the advantages of the small expended and vitrified ball and a thermosetting polymer material, the small expended and vitrified ball with the reinforcing layer coated on the surface is prepared by forming an insoluble and infusible high molecular protective film on the surface of the small expended and vitrified ball through the crosslinking and solidification of thermosetting resin. The strength and the heat-preservation and heat-insulating performance of the small expended and vitrified ball with the reinforcing layer coated on the surface are improved, the problems that the small expended and vitrified ball is easy to crack in use and the like are reduced, and meanwhile, the water absorption rate of the small expended and vitrified ball is reduced greatly. The method has the advantages that the preparation process is simple, the small expended and vitrified ball is easy to control and the like. The small expended and vitrified ball with the reinforcing layer coated on the surface can be used as heat-preservation light mortar and a plaster material, a heat-preservation and heat-insulating layer in oil cans, liquefied gas storage tanks and industrial gas storage tanks and a raw material of a light high-grade refractory material.
Owner:WUHAN TEXTILE UNIV

Game strategy generation method of non-complete information

The invention relates to a strategy generation method under non-complete information gaming. The method comprises following specific steps: the opponent behavior modeling step that, before gaming is performed, according to a specific rule of the gaming, modeling for each behavior of an opponent is performed; the behavior collection and information prediction step that, in the gaming process, information of each action of the opponent is recorded, and the information is converted into probability distribution of opponent information through a model; the win rate calculation step which is performed according to a prediction and that, according to the probability distribution, a simulation is performed through a monte carlo method to obtain an own win rate; and the step that an expect benefit of each behavior is calculated according to the win rate finally, and the haviro having the highest expect benefit is selected to be taken as a final decision. A new thought is provided for the non-complete information gaming, the method has the advantages of clear logic, simple implementation and accurate calculations of the opponent information and the win rate, the decision-making capability in specific situation can be improved, a decision benefit is maximized, and then industrial production efficiency is improved.
Owner:ZHEJIANG UNIV

Method for preparing high-specific-surface-area cotton-shaped super-fine silver powder and silver powder prepared with method

The invention relates to a method for preparing high-specific-surface-area cotton-shaped super-fine silver powder and silver powder prepared with the method. The method for preparing the high-specific-surface-area cotton-shaped super-fine silver powder comprises the following steps of A, preparing a first water solution; B, preparing a second water solution; C, conducting reduction treatment; D, conducting washing; E, conducting drying and sieving, and obtaining the dried finished high-specific-surface-area cotton-shaped super-fine silver powder. According to the silver powder prepared with the method, the specific surface area is over 6.5 m<2>/g, and the burning lose content is smaller than 1.5 after heat treatment is conducted for one hour at the temperature of 538 DEG C. The method for preparing the high-specific-surface-area cotton-shaped super-fine silver powder and the silver powder prepared with the method have the advantages that the method is controlled effectively, the prepared silver powder is high in quality and stable, the production efficiency is high, pollution is avoided, the requirement for environment protection is met, after the silver power is prepared into silver paste, the viscosity and the rheological property of electrocondution slurry are maintained, the conductivity of a silver film obtained by burning the electrocondution slurry is not changed, and the proportion of the silver powder in the electrocondution slurry can be reduced. The silver powder prepared with the method has the outstanding advantages that the particle size distribution range is narrow, the dispersibility is high, the purity is high, and the specific surface area is high and is an ideal material for silver paste for electrodes of electronic components.
Owner:中船黄冈贵金属有限公司

Continuous extrusion deformation method of magnesium alloy

The invention discloses a continuous extrusion deformation method of magnesium alloy, which comprises the steps that: the temperature of a homogenized magnesium alloy blank is heated to 350 to 450 DEG C, an extrusion die, with the temperature lower than that of the magnesium alloy blank by 10 to 30 DEG C, is used for performing first-pass one-way continuous extrusion at the constant-speed extrusion rate of 1m/min to 3m/min in an order of forward extrusion, change channel angular extrusion at 90-degree corner and equal channel angular extrusion at 90-degree corner, so that the magnesium alloy blank, after the forward extrusion at one end of the die, is equivalently divided into a plurality of streams, which are subject to the change channel angular extrusion and the equal channel angular extrusion to form the magnesium alloy at the other end of the die, followed by mold stripping, thus continuous flowing extrusion deformation is formed, the extrusion ratio of the forward extrusion to the change channel angular extrusion at 90-degree corner is 16:1, and the extrusion ratio of the change channel angular extrusion to the equal channel angular extrusion at 90-degree corner is 1:1. The method can not only obtain extremely prominent grain refining effect and more homogenous structure of the magnesium alloy, but can also enhance industrial production efficiency, lower production cost and ensure production quality by increasing the extrusion ratio and the extrusion speed.
Owner:CHONGQING UNIV

Ti-alloy nitride selective-absorption film system and preparation method thereof

The invention discloses a Ti-alloy nitride selective-absorption film system. The selective-absorption film system comprises a metal substrate and further comprises a Ti-alloy nitride selective-absorption film, an anti-reflection dielectric film and an SiO2 protective film which are deposited on the metal substrate in sequence. The selective-absorption film system provided by the invention is characterized in that the solar absorptivity is greater than 97%; the solar emissivity is smaller than 3%; both the photo-thermal conversion efficiency and the heat-collecting efficiency are high. Under the premise of keeping high absorptivity and low emissivity, the selective-absorption film can meet the requirements of diversification and individuation of photo-thermal products such as solar water heaters and solar air conditioners by adjusting the components of Ti alloy. The selective-absorption film system is simple in structure and free from oxygen deposition, and has the characteristics of simple preparation technology and using less target materials, so that the production efficiency is greatly improved; the industrial large-scale production cost is lowered. Therefore, the selective-absorption film system is of great significance for the development of the field of solar selective heat absorption films.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI

Alkaline non-cyanide zinc plating nickel alloy plating solution and electroplating process thereof

The invention discloses an alkaline non-cyanide zinc plating nickel alloy plating solution and an electroplating process thereof. The plating solution is prepared with hydantoin or a hydantoin derivative as a main coordination agent by adding an auxiliary coordination agent, zinc sulfate, nickel sulfate, potassium carbonate and water. The plating solution comprises 20 g-400 g/L of the main coordination agent, 5 g-300 g/L of the auxiliary coordination agent, 5 g-200 g/L of the zinc sulfate, 1 g-150 g/L of the nickel sulfate and 5 g-435 g/L of the potassium carbonate. The electroplating process of the plating solution comprises the steps of substrate pretreatment and zinc-nickel alloy electroplating. A constant current electroplating mode is adopted for zinc-nickel alloy electroplating. The electric current density is 0.5 A-5 A/dm2. The temperature of the plating solution is 30 DEG C-60 DEG C. The distance between a cathode and an anode is 0.5 cm-25 cm. The stirring speed of the plating solution is 0 rpm-3000 rpm. The electroplating time is 1 min-120 min. According to the plating solution and the electroplating process thereof, the hydantoin or the hydantoin derivative serves as the main coordination agent for the first time, and zinc-nickel alloy with the nickel content of 10 wt.%-13 wt.% is obtained through electro-deposition by using the main coordination agent and the auxiliary coordination agent in a combination mode. An obtained coating is good in corrosion resistance. The stability of the plating solution is improved immensely compared with using of a single coordination agent.
Owner:宏正(福建)化学品有限公司

Secondary continuous extrusion processing method of magnesium alloy and die plate insert for secondary continuous extrusion processing method

The invention discloses a secondary continuous extrusion processing method of magnesium alloy and a die plate insert for the secondary continuous extrusion processing method. The secondary continuous extrusion processing method comprises the steps of replacing a conventional extrusion die plate insert with a secondary continuous extrusion die plate insert, preheating magnesium or magnesium alloy blank to a temperature lower than an extrusion temperature by 0 to 30 DEG C, and performing unidirectional and uniform extrusion on the blank with the extrusion speed being 0.1m/min to 4m/min and the extrusion ratio being 4: 1 to 40: 1. The designed and manufactured secondary continuous extrusion die plate insert comprises an upper cylinder with a small diameter and a lower cylinder with a large diameter, which are connected with each other, wherein center through holes are formed in the insert and comprise a first extrusion forming work tape hole, an inverted cone hole, a secondary extrusion forming work tape hole and a molding product channel hole. The secondary continuous extrusion processing method has the characteristics of being simple in technology, easy to operate, low in extrusion cost and wide in application range; and compared with the conventional extrusion product, the magnesium alloy prepared by the secondary continuous extrusion processing method has more tiny structures and better performance.
Owner:SHANGHAI JIAO TONG UNIV

Code micro-macro combined collection method of absolute grating ruler

The invention discloses a code micro-macro combined collection method of an absolute grating ruler. The absolute grating ruler is a double-code-channel grating ruler with a low-accuracy encoding code channel and a high-accuracy encoding code channel which are arranged side by side. The code micro-macro combined collection method of the absolute grating ruler is characterized in that a cmos sensor is arranged on the absolute grating ruler, the cmos sensor comprises a multi-line scanning mode, an inclined scanning read-out mode and a parabola scanning read-out mode, one line of encode channel is scanned through the multi-line scanning mode, another line of encode channel is scanned through the inclined scanning read-out mode and the parabola scanning read-out mode , and the multi-line scanning mode, the inclined scanning read-out mode and the parabola scanning read-out mode are combined in a micro-macro mode to collect codes. The code micro-macro combined collection method of the absolute grating ruler achieves that a reading head of the absolute grating ruler carries out micro-macro combined reading, and meanwhile the collection time of each frame of image is shortened to achieve the collection of high frame frequency images. The code micro-macro combined collection method of the absolute grating ruler can improve the pollution-resistant capacity of the absolute grating ruler, and improves the reliability and correction rate of decoding.
Owner:GUANGDONG UNIV OF TECH

Preparation method of high-yield cyanuric acid and its derivatives sodium dichloroisocyanurate and trichloroisocyanuric acid

A preparation method of high-yield cyanuric acid and its derivatives sodium dichloroisocyanurate and trichloroisocyanuric acid comprises the following steps of: uniformly mixing urea and a catalyst ammonium sulfate, adding the mixture into a reaction vessel, forming a uniform thin material layer on a conveyor belt when the materials reach a certain temperature, liquid viscosity is increased and the liquid is still at a liquid state, and allowing the thin material layer to pass through a tunnel type heating chamber of a tunnel type heating device for heating at high temperature such that the temperature of the materials is rapidly raised to 250-280 DEG C in a short time. As the reaction time of the materials is short and the reaction speed is fast, there are few side effects and product decomposition is low. The cyanuric acid crude product prepared in the invention has high purity and high yield. During the refining process, inorganic dilute acid is used to process the cyanuric acid crude product. After centrifugation, a cyanuric acid refined product is directly used in the synthesis of its derivatives sodium dichloroisocyanurate and trichloroisocyanuric acid without being dried. By the adoption of the method, the adhesive problem of heating surface in production preparation is solved, production speediness and continuity are realized, and industrial production efficiency is raised.
Owner:河北田加力生物科技股份有限公司

Bolt screwing machine for automobile engine flywheel

The invention discloses a bolt screwing machine for an automobile engine flywheel. The bolt screwing machine comprises a base. A lifting installing frame is fixed to the middle of the base. A lifting device is arranged on the lifting installing frame. A first machine base and a second machine base are fixed to the two sides of the base respectively. A first supporting plate is fixed to the first machine base. A first sliding rail cushion plate and a second sliding rail cushion plate are arranged on the two sides of the first supporting plate respectively. A first air cylinder is installed in the middle of the first supporting plate. Linear sliding rails are arranged on the first sliding rail cushion plate and the second sliding rail cushion plate respectively. A first installing plate is in sliding connection with the first sliding rail cushion plate and the second sliding rail cushion plate. A first air cylinder push plate is connected to the bottom of the first installing plate. One side of the first air cylinder push plate is fixed to the first installing plate. The other side of the first air cylinder push plate is connected with a first floating connector fixed to an output shaft of the first air cylinder. The bolt screwing machine is high in automation degree and has high pertinence; and in addition, the installing error is reduced, and the part installing precision and the part production efficiency are improved.
Owner:CHONGQING TECH & BUSINESS INST

Novel self-reset friction damper

ActiveCN104032848AOvercome existing shortcomingsAvoid disadvantagesShock proofingPull forceReinforced concrete
The invention discloses a novel self-reset friction damper, and belongs to the technical field of energy dissipation and shock absorption of civil engineering structures. The structure of the damper is that the two sides of an outer covering steel plate concrete connecting section are respectively provided with a profile steel connecting section; anchoring steel bars are welded to the outer sides of the profile steel connecting sections, and are poured in a reinforced concrete main structure simultaneously; the bottom ends of the outer covering steel plate concrete connecting sections and the bottom ends of the profile steel connecting sections are connected through friction energy dissipation plates; the outer covering steel plate concrete connecting sections are connected with the profile steel connecting section on one side or the profile steel connecting sections on the two sides through a plurality of prestressed cables. When the main structure deforms under seismic excitation, the prestressed cables anchored on the outer sides of profile steel are extended, and self-reset tension force is provided; meanwhile, the friction energy dissipation plates connected between the profile steel and the concrete connecting sections deform relatively, seismic energy is dissipated, and energy dissipation and shock absorption are achieved.
Owner:TSINGHUA UNIV

Lump coal boxing system and boxing method thereof

The invention discloses an automated lump coal boxing system and a boxing method thereof. A control system in the automated lump coal boxing system is connected with overturning trolleys (3) and trolley moving tables (31) respectively, detecting switches (33) are uniformly distributed on the trolley moving tables (31) in the lump coal boxing system, an empty trolley line (29) and a boxing line (30)which are under a hoisting device (2), and the boxing line (30) under a feeding mechanism (6), and the detecting switches (33) are connected with the control system; a hopper position detecting device (7) and a door opener (8) are arranged on a hopper (5) of a hopper device (1), and the hopper position detecting device (7) and the door opener (8) are respectively connected with the control system. The boxing method disclosed by the invention comprises the following steps: charging lump coal; controlling the overturning trolleys (3) to travel and overturn; and enabling a container (9) to be hoisted and placed to a transporting vehicle by the hoisting device (2). Through the adoption of the automated lump coal boxing system and the boxing method thereof, the overturning efficiency and the dismounting efficiency of the container are improved, and large-scale industrial production can be realized.
Owner:WUHAN POWER EQUIP WORKS

Machine vision based bamboo strip defect detection method

The invention provides a machine vision based bamboo strip defect detection method which comprises the following steps of S1, establishing a neural network structure used for bamboo strip recognitionto obtain a recognition model used for recognizing the yellow-green face of a bamboo strip; S2, collecting an original image of the bamboo strip to be detected; S3, performing normalized processing onthe original image of the bamboo strip to be detected; S4, performing feature extraction on image data after normalized processing; and S5, inputting features extracted in the step S4 into the recognition model in the step S1, judging the condition of the yellow-green face of the bamboo strip image, and performing defect detection of bamboo greenness and left blank according to a judgment resultrespectively. The invention provides the machine vision based bamboo strip defect detection method which can rapidly recognize and classify the bamboo strip. The machine vision based bamboo strip defect detection method is simple and feasible, can relatively rapidly realize effective detection of the bamboo strip under the condition of invariable illumination condition, increases the automation degree of bamboo product processing and improves the industrial production efficiency.
Owner:GUANGXI NORMAL UNIV
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