642results about How to "Meet the protection requirements" patented technology

The invention discloses a manufacturing method of a flexible heat-sensitive thin film resistor array, which belongs to the field of micro-electromechanical systems (MEMS). The method comprises the following steps: firstly depositing a sacrificial layer on a silicon chip; spin-coating a PI prepolymer on the sacrificial layer, and forming a PI thin film by thermocuring; then spin-coating photoresist, carrying out lithographic patterning, and sputtering a required metal heat-sensitive thin film layer; adopting the stripping method to obtain a pattern of the heat-sensitive thin film layer; then spin-coating the photoresist, carrying out the lithographic patterning, and then electroplating for forming an electrical connection metal layer; removing the photoresist, and then carrying out heat treatment on heat-sensitive resistors; and finally depositing a parylene protective layer, removing the sacrificial layer and then obtaining the flexible thin film resistor array. The flexible heat-sensitive thin film resistor array has simple process, more reliable connectivity of the heat-sensitive resistors, and small interference of conductor resistance, and can greatly improve the measurement precision when being used as a sensing element of a sensor, and be applied in moist, underwater and other environments under the condition of ensuring the sensitivity of the sensor.

The invention relates to a resin-formed flexible puncture-proof fabric and a preparation method of the resin-formed flexible puncture-proof fabric. The fabric consists of garment fabric and thermosetting resin condensates, wherein a gap exists between the thermosetting resin condensates. The preparation method comprises the following steps of: uniformly dispersing the thermosetting resin in each mesh of a screen plate so that each mesh is filled with resin; scraping residual resin on the surface of the screen plate; spreading the garment fabric on the screen plate filled with resin; applying pressure to the garment fabric, and drying; solidifying the thermosetting resin condensate on the surface of the garment fabric; and finally removing the thermosetting resin condensate from the screen plate to obtain the resin-formed flexible puncture-proof fabric. According to the invention, the thermosetting resin is a good binder before solidification, has a good binding effect with the garment fabric and relatively high strength and hardness after solidification, and can resist the puncture of a conventional tool needle tube; and the shortcomings and defects of the prior art are overcome, and the needs of the military field and civil field are met.

The invention discloses a rust-proof soft film composition and a preparation method thereof, belonging to the technical field of metal protection and particularly relating to a metal rust preventing technology. The rust-proof soft film composition disclosed by the invention comprises the following components in a formula in percentage by mass: 40-70 of film forming agent, 2-10 of corrosion and rust inhibitor, 1-5 of vapor phase inhibitor, 4-10 of microcapsule antirust agent, 0-10 of pigment, 1-3 of rheological agent, 0.2-1.0 of defoaming agent and 10-25 of solvent. The rust-proof soft film composition disclosed by the invention has an excellent rust-proof effect and an excellent self-repairing function; rust-proof gas volatilized by the film can meet the rust-proof requirements of inner and outer surfaces of workpieces with complex structures such as inner metal cavities, inner walls of pipelines, grooves and the like; when the rust-proof soft film is destroyed in a use process, a rust-proof core with an excellent self-repairing function of the microcapsule antirust agent can be automatically repaired, so that the condition that the rust-proof film is invalid in advance because of being destroyed is avoided, and the protection time of a protective film is prolonged; and the rust-proof soft film composition can comprehensively meet the requirement for metal rust-proof protection under severe environments such as outdoor sun and rain, sand-dust and the like.

The invention discloses a method suitable for controlling the concentration of hydrogen sulfide tail gas in a low-temperature methanol washing process. The method comprises the steps that a sulfur-bearing methanol rich solution dissolved with sulfide and carbon dioxide is subjected to flash evaporation via a medium-pressure flash evaporation tower; fuel gas such as CH4, CO and H2 dissolved in the solution is desorbed and recovered; the methanol solution after the flash evaporation is subjected to pressure reduction and gas stripping to allow a carbon dioxide component to be desorbed from the solution; sulfide is still dissolved in the methanol solution via secondary washing and absorption of the solution to achieve sulfide enrichment; the sulfur-bearing methanol rich solution is heated and then subjected to the flash evaporation; flash evaporation gas returns to a secondary absorption tower to strengthen the sulfide enrichment; the obtained sulfur-bearing methanol solution enters a heat regeneration tower to allow sulfide and residual CO2 to be fully desorbed by the action of steam stripping of methanol steam; and non-condensable gas, namely the acid sulfide tail gas is obtained by further condensation and cooling via a tail gas heat exchanger and a hydrogen sulfide tail gas chiller. The method has the advantages that the method is energy-saving and consumption-reducing, and can adapt to different sulfur recovery technology requirements.

The invention provides an intelligent motor vehicle exhaust emission diagnosis method and an apparatus thereof and relates to a wireless communication technology field. The apparatus mainly comprises vehicle terminal equipment formed by a vehicle on-board diagnosis (OBD) II automobile emission monitoring system and a vehicle wireless transceiver system. A monitoring center, a city traffic highway and a gateway are provided with monitoring stations. The vehicle terminal equipment carries out channel scanning, searches a monitoring station coordinator and emits an access network request. After the network is connected successfully, the vehicle terminal equipment sends a license plate number and information whether the exhaust emission exceeds a standard and the like to the monitoring station coordinator. The monitoring stations establish the network, receive the information of the vehicle terminal and transmit data to a vehicle monitoring database of a monitoring center computer so as to monitor and manage the vehicle exhaust emission. By using the method and the apparatus of the invention, detection, maintenance and management of the automobile exhaust emission can be integrated into one body so that a requirement of environment protection can be satisfied. And the method is reasonable and simple. An apparatus structure is simple. Usage is convenient and cost is low.

The invention relates to a solar air-conditioner comprising a U-shaped heat pipe collector, a lithium bromide absorption-type refrigerating machine, a heat storage water tank, a cold storage water tank, a circulation pump, a cooling tower, an air-cooled coil pipe, an auxiliary oil-fired boiler and an automatic control system. The lithium bromide absorption-type refrigerating machine comprises a high-pressure generator, a low-pressure generator, an evaporator, an absorber, a cooling tower, a cooled heat exchanger, a concentrator and a generator pump. Lithium bromide-water separators are respectively arranged in the high-pressure generator and the low-pressure generator. Surfactants are added in refrigerant solution. The solar air-conditioner does not need to consume lots of energy and has low requirement on heat energy, can utilize various low-grade heat energy besides the solar heat sources, and has good electricity saving and energy saving effects and high economic efficiency. The cold capacity regulating range is wide. Along with the change of external load, the unit can carry out stepless regulation on the cooling capacity within the range from 10% to 100%, and during low load regulation, the heat efficiency hardly falls and the properties are stable; therefore, the solar air-conditioner can better adapt to the requirement of variable load.

This invention disclsoes a vehicle multi-function concrete construction equipment, it is installed on car chassis. Pumping mechanism of pumping type spray machine, spray gun, and accelerating agent device and air compression set is set on the chassis. Its feature is that agitator is also fixed on chassis, and its material lifting mechanism, agitating mechanism, hydraulic power unit and electric control equipment. Generator connected to car engine is set, the hydraulic power unit and air compression set are connected to generator circuit. Folding guide rail is used on the material lifting mechanism. Agitate barrel is span fixed over pumping mechanism, and the barrel axial line is vertical to pumping mechanism push oil cylinder, the hopper of pumping spray machine is directly installed under the barrel discharge port. This invention can meet the needs of project salvage construction, especially for military engineering salvage. All kind of functions said above are on one car, dynamic need is met from chassis.

The invention relates to alkyl lubricating grease used for surface protection of a steel wire rope and a preparation method thereof. The alkyl lubricating grease comprises the following components by weight: 52.0-78.0% of base oil, 10.0-35.0% of microcrystalline wax, 8.0-30.0% of thickener, 0.25-0.6% of alkyl diphenylamine, 1.5-3.0% of petroleum barium sulfonate and 1.5%-3.0% of lanolin calcium soap. The sum of the weight percentages is 100%. The moving viscosity of the base oil under 100 DEG C is 10.0-40.0 mm2/s, the thickener is ammonium polyphosphate (APP) or amorphous poly alpha olefin (APAO), and the dropping melting point of the microcrystalline wax is 65-85 DEG C. The APP or the APAO is utilized as the thickener, dropping point of the alkyl lubricating grease is improved, adhesion performance of the alkyl lubricating grease is improved, and antirust performance and anti-corrosion performance of the alkyl lubricating grease are excellent.

The invention provides a cleaner for the surface of a metal material, comprising oxidizing agent, a pH regulator, surface active agent, solubilizer, defoaming agent and purified water; wherein, the weight percentage of the oxidizing agent is 0.5 percent to 5 percent, the weight percentage of the pH regulator is 3 percent to 12 percent, the weight percentage of the surface active agent is 5 percent to 15 percent, the weight percentage of the solubilizer is 1 percent to 10 percent, the weight percentage of the defoaming agent is 2 percent to 7 percent and the rest is purified water; the cleaner is an alkaline water-soluble cleaner, has good cleaning effect to pollutants remained on the surface of the metal material, has low corrosion without corrosion equipment, is not easy to damage the surface of the metal material, meets the requirements of environment protection and has reasonable formulation design, simple preparation technique and low cost; and the cleaned waste liquid is convenient to be treated and discharged.

The invention provides a preparation method of a thermal insulation coating high-performance polyurethane elastomer. After the reaction of terminal hydroxyl polybutadiene liquid rubber and polyisocyanate, polyurethane is added for reaction for 3 to 4.5 hours at 85 to 90 DEG C to produce isocyanate-terminated prepolymer; a certain amount of heat insulating filler is added in the prepolymer and is mixed evenly to produce component A; chain extender, antioxidant, curing agent and solvent are mixed evenly according to a certain portion to produce component B; the component A and the component B with the weight portion of 3: 1 to 6: 1 are mixed, stirred evenly, cured at room temperature to produce the thermal insulation coating high-performance polyurethane elastomer. The process of the invention used to synthesize the thermal insulation coating high-performance polyurethane elastomer is more reasonable, the product has higher quality and better comprehensive properties. The test date shows that the tensile strength is 3.50 to 5.80MPa, the elongation at break is more than 220 percent, the bond strength is more than 10.0MPa, the glass transition temperature is less than 60 DEG C below zero, the solidification shrinkage rate is less than 0.1 percent. The product is mainly applicable to aerospace industry.

The invention discloses a lifting device of a screenwiper arm. The lifting device comprises a signal acquisition device, a controller and an electric drive mechanism and an actuating mechanism arranged on the screenwiper arm, wherein the signal acquisition device is used for acquiring a state signal of a screenwiper and outputting the state signal into the controller; and the controller is used for judging the state of the screenwiper and controlling the electric drive mechanism to drive the actuating mechanism to lift or descend the screenwiper arm. A controlling method comprises: through acquisition of the state signal of the screenwiper, the lifting and descending of the screenwiper arm by the actuating mechanism are controlled. The lifting device has the advantages that the lifting device can use the structure of the prior screenwiper, directly mount the drive mechanism and the actuating mechanism on the screenwiper arm, is easy to modify and is flexible to control the lifting and descending of the screenwiper arm; and through the detection of the state of the screenwiper, the lifting device controls the lifting and descending of the screenwiper arm according to the state of the screenwiper, meets the protective requirements of different screenwipers, can lift the screenwiper arm when the screenwiper is stopped and solve the problem of aging due to the fact that a wiping rubber strip is contacted with windshield glass for a long time and is heated or frozen.

The invention relates to a waste heat recovery and utilization system for a coal mine air compressor. The system comprises a heat pipe heat exchanger arranged at the top of the air discharge duct of the air compressor; a heat exchange circulation pipeline is formed between the heat pipe heat exchanger and the casing of a shell-and-tube evaporator through a heat exchange circulating water outlet pipeline and a heat exchange circulating water return pipeline; a refrigerant circulation pipeline is formed between the evaporation heat exchange pipeline of the shell-and-tube evaporator and the casing of a shell-and-tube condenser through a compressor and an expansion valve; a domestic hot water primary circulation pipeline is formed between the condensation heat exchange pipeline of the shell-and-tube condenser and the hot water pipeline of a plate heat exchanger; a domestic hot water secondary circulation pipeline is formed between the cold water pipeline of the plate heat exchanger and a domestic hot water tank; a winter user heating circulation water supply pipeline is formed between user equipment and the condensation heat exchange pipeline of the shell-and-tube condenser; and a summer user refrigerating circulation water supply pipeline is formed between the user equipment and the casing of the shell-and-tube evaporator. By adopting the invention, winter heating, summer refrigerating, and domestic hot water providing all year round for coal mine buildings are realized.

The invention provides an identification method and device for the denial of service attack. The identification method for the denial of service attack comprises the following steps of obtaining the total amount of access requests sent to a target host within a first preset time period, and recording as a first request amount; judging whether the first request mount exceeds a threshold value which is obtained by calculating the page view of the target host; and if so, determining that the target host is subjected to the denial of service attack. According to the technical scheme disclosed by the invention, the total amount of the access requests sent to the target host within the preset time is used as a judgment target, the threshold value is obtained by the page view statistics of the target host to serve as a criteria to judge whether denial of service attack is received, the denial of service attack phenomenon is concluded to identify the denial of service attack so as to bring convenience to take corresponding measures, the identification accuracy of the denial of service attack is greatly improved, and the safety protection of the host is realized.

The present invention features that yellow corn powder as corn processing leftover is used as main material, into which ethanol is added to produce alcohol soluble protein for producing gum. Alcoholsoluble corn protein as gum is produced through adding 70-90 % concentration ethanol solution into yellow corn powder and immediate microwave treatment, and is modified with chitosan and crosslinkingagent to form chitosan-alcohol soluble protein gum. The gum is mixed with sweetener, edible essence and color to produce biodegradable chewing gum with bacteriostasis function. The present invention opens one new way for producing environment-protecting chewing gum.