337results about How to "Stable thickness" patented technology

The invention relates to the technical field of control on production equipment, and particularly relates to an intelligent control system for a vertical mill based on a fuzzy PID (proportion integration differentiation) algorithm. The intelligent control system comprises the vertical mill, a dust remover and a feeding device, wherein the feeding device comprises an unloader, a bucket elevator and a storage bin; and the intelligent control system is characterized in that an air inlet in the bottom of the vertical mill is connected with a fan via a pipeline, a cold-air device and a hot-air stove are arranged on the pipeline between the air inlet and the fan, a cold-air adjusting valve and a hot-air adjusting valve are respectively arranged on the cold-air device and the hot-air stove, a vertical mill material layer PID controller is arranged on the feeding device, and an in-mill pressure difference fuzzy PID controller is arranged on the cold-air adjusting valve. According to the intelligent control system disclosed by the invention, mathematical models of the change of the vertical mill material layer thickness and an in-mill pressure difference along with parameters of a feeding amount, a mill inlet hot-air temperature and the like can be established only by inputting and outputting data without analyzing the complex grinding process of the vertical mill; and the intelligent control system is simple in process, high in adaptability, fast in the dynamic response time of a controller algorithm, high in robustness, high in control accuracy, and good in market prospect.

The invention discloses a preparation method of a multilayer sandwich type electrostatic-spinning polymer nanofiber composite membrane. The preparation method comprises the steps of firstly, spinning a polymer spinning liquid into a fiber membrane in an electrostatic manner, then spraying a spraying liquid containing inorganic nano-particles to the surface of the electrostatic-spinning fiber membrane by virtue of a jetting technique, continuously spinning the fiber membrane, and repeatedly carrying out the steps according to specific conditions so as to prepare the multilayer sandwich type composite membrane. As the inorganic nano-particles are adhered to the surface of the fiber membrane, not only can the ultrahigh specific area and the specific structural advantage of a nanofiber be brought into full play, but also the selectable ranges of the spraying liquid and the polymer spinning liquid are flexible, so that spraying liquids containing different inorganic nano-particles can be sprayed to electrostatic-spinning fiber membranes made from different raw materials according to actual demands so as to prepare sandwich type composite membranes with different functions, stable structures and good properties, and the application range of the electrostatic-spinning polymer nanofiber composite membranes is expanded.

The conductive paste contains a conductive metal powder and an organic vehicle. The conductive paste has characteristics that the viscosity falls within the range of 200 Pa·s to 350 Pa·s when the shear rate of 10s⁻¹ is applied and within the range of 80 Pa·s to 120 Pa·s when the shear rate of 40s⁻¹ is applied under 25° C. and magnitudes of a storage elastic modulus G′ and a loss elastic modulus G″ are reversed when distortion applied to the conductive paste at the frequency of 1 Hz is varied from 0 to 20%.

The invention discloses an atmospheric correction method and system for a hyperspectral remote sensing image. The method comprises steps as follows: step one, surface reflectance and observation apparent reflectance of a blue waveband and a red waveband of a dark object are acquired according to satellite signals; step two, an aerosol mode is inversed based on the satellite signals; step three, moisture content is inversed based on the satellite signals and the current atmospheric aerosol mode; and step four, the remote sensing image is subjected to atmospheric correction according to the current atmospheric aerosol mode and the current moisture content obtained through inversion. Matched aerosol modes are established according to characteristics of different areas, and the aerosol mode is inversed firstly before atmospheric correction, so that the accuracy of atmospheric correction is improved; mutual influence of moisture content and aerosol is comprehensively considered, the aerosol optical thickness and the moisture content are subjected to synergic inversion, and mutual influence of the aerosol optical thickness and the moisture content can be further eliminated.

The invention provides continuous casting protection slag, which contains a calcium-contained compound, a silicon-contained compound and an aluminum-contained compound, wherein the protection slag also contains an addictive; the addictive selects from one or more of compounds which make the melting point and the viscocity in the melting state of the protection slag reduced; the dosage of the addictive makes the melting point of the protection slag reduced to be between 1,070 and 1,170 DEG C, and the viscocity of the protection slag at the temperature of 1,300 DEG C reduced to be between 0.2 and 0.4 Pa.S; and based on oxide, the weight ratio of the calcium-contained compound to the silicon-contained compound of the protection slag is between 0.95 and 1.15, and the weight ratio of the aluminum-contained compound to the silicon-contained compound is between 0.15 and 0.5. Compared with the prior continuous casting protection slag, the continuous casting protection slag provided by the invention can effectively reduce longitudinal cracks, transverse cracks and subsurface meshy cracks on the surface of casting banks, and the splitting defect rate of steel finished products subjected to casting blank rolling is lower.

The invention relates to a guide agent and relative preparation, used in CSP smelt factory, wherein it uses chromic sand, quartz sand, magnesium sand, feldspar sand, and graphite, to be screened, mixed and dried. Compared with present guide agent, it has better sinter degree, stable thickness, and better high-temperature resistance, etc. And the test proves that its steel pack self-open rate can reach 98-100%.

The invention provides an evaporating device and an evaporating method. According to the evaporating device disclosed by the invention, a crystal oscillator sheet baffle plate is arranged between an evaporation source and a crystal oscillator sheet, and the crystal oscillator sheet baffle plate can switch between two positions, namely a position shielding the crystal oscillator sheet and a position not shielding the crystal oscillator sheet; when the crystal oscillator sheet baffle plate is in the position shielding the crystal oscillator sheet, evaporation material deposits to the crystal oscillator sheet baffle plate, so as to prevent the evaporation material from depositing to the crystal oscillator sheet; and when the crystal oscillator sheet baffle plate is in the position not shielding the crystal oscillator sheet, the evaporation material deposits to the crystal oscillator sheet. When the evaporation device disclosed by the invention is applied to an evaporation process, in theinitial stage of evaporation, namely the evaporation stage of impurities on the surface of to-be-evaporated material, the crystal oscillator sheet baffle plate is in the position shielding the crystaloscillator sheet, so as to prevent impurities from depositing to the surface of the crystal oscillator sheet; and after evaporation of the impurities on the surface of the to-be-evaporated material is completed, the crystal oscillator sheet baffle plate is in the position not shielding the crystal oscillator sheet, and the evaporation material deposits to the surface of the crystal oscillator sheet, so that an evaporation rate monitoring device acquires a steady evaporation rate.

There is disclosed a device for purifying oily wastewater, including a vertical tank of an atmospheric pressure, inside which a central coagulation reaction tube, a reverse cone-shaped cyclone flocculation stage, a suspended sludge filtering zone and a purified water commutation stage of inclined plates are included from bottom to top sequentially, oily wastewater is sequentially subjected to a coagulation reaction, suspended sludge filtering and a purified water commutation process and then discharged, a sludge collecting groove collects and guides the suspended sludge to a sludge concentrating zone for further sedimentation and concentration processes and then discharges it to external to the tank, in this way, the purification reaction, flocculation and fine filtration of wastewater and the sludge concentration process are integrated within the same wastewater purifying device. Thus, the device is equivalent to the existing wastewater pretreatment system plus a fine filtration system.

The invention discloses paper pulp and a high-bulk energy-saving environment-friendly card prepared from the same. The paper pulp is prepared from the following components in percentage by weight: 1 to 10 percent of bleached sulfate softwood pulp, 30 to 70 percent of bleached sulfate hardwood pulp, 20 to 50 percent of chemithermomechanical pulp, and 10 to 30 percent of alkaline peroxide mechanical pulp. The invention also provides the copperplate card prepared from the paper pulp and other components. The paper made with the paper pulp is high in bulk, the gram weight of the paper is effectively controlled to be in a certain range, the paper pulp is prevented from being put into production excessively, and the defibrination energy consumption of a paper machine is reduced correspondingly, so that the effects of environment friendliness and energy saving are effectively achieved.

A functional roll film comprises a plastic film which is transparent and having gas barrier properties, and provided at its at least one surface with an inorganic oxide layer, and which can be wound; wherein a maximum thickness of the inorganic oxide layer is 1.5 times of a minimum thickness.

The invention discloses a novel thin strip tractor which comprises a stand, a traction device, an actuator and a transmission system at the minimum. The traction device is installed on the stand, double rollers which are arranged in parallel in the vertical direction are arranged on the traction device, a lower roller is fixed, an upper roller is adjustable in a floating mode, the transmission system is provided with a magnetic powder type clutch, the input end of the magnetic powder type clutch is connected with the actuator, and the output end of the magnetic powder type clutch transfers power to the traction device. According to the tractor, a double roller traction mode is adopted, a roller gap and pressure can be adjustable manually, a pole plate subjected to plate coating is uniform in thickness, the magnetic powder type clutch is arranged on the transmission system, rigid transmission is changed into flexible transmission, the power of the actuator is driven to be transferred, it is guaranteed that the traction speed changes smoothly, the fluctuation of traction force is little, so that the deformation of the pole plate is reduced, the rejection rate is reduced, the product quality is improved, the structure is simple, the manufacturing is convenient, the processing cost is low, and the production efficiency is high.

The invention discloses a printing device and a printing method of a three-dimensional ornamentation silk screen. The printing method comprises the following steps of: A, manufacturing a silk screen printing plate, and forming a silk screen sealing area and a silk screen penetrating area on a silk screen of the silk screen printing plate; and B, pressing the silk screen printing plate on a substrate, and injecting oil ink on the silk screen printing plate; scraping a scraper in a silk screen area of the silk screen printing plate back and forth, so that the oil ink is transferred to the substrate along the silk screen penetrating area, and the oil ink forms a three-dimensional ornamentation pattern under the influence of a magnetic field. According to the printing method provided by the invention, the silk screen sealing area and the silk screen penetrating area are arranged on the silk screen of the silk screen printing plate; the silk screen printing plate is tightly pressed on the substrate; the oil ink is injected on the silk screen printing plate; and the scraper scrapes in the silk screen area of the silk screen printing plate back and forth, so that the oil ink is transferred to the substrate along the silk screen penetrating area. Compared with the prior art, a manufacturing manner provided by the invention is simple and rapid; the oil ink on the silk screen printing plate can be circularly used for multiple times, so that the cost is lower; and furthermore, the thickness stability of the three-dimensional formed pattern can be ensured by using the scraper.

The invention discloses casting powder for a continuous casting crystallizer. The casting powder comprises raw materials in parts by weight as follows: 3.5-15 parts of fluorite, 35-55 parts of aedelforsite, 5-15 parts of alkali, 0-2 parts of lithium carbonate, 0-10 parts of diaspore, 0-6 parts of a cement clinker, 1-5 parts of magnesia powder, 2-5 parts of pyrolusite, 0-8 parts of sodium fluoride, 0-5 parts of barium carbonate, 0-5 parts of bentonite, 1-4 parts of coke, 0-8 parts of a carburant, 1-3 parts of carbon black and 1-2 parts of a binder. According to the casting powder, the preparation cost is low; the recovery rate of the casting powder is larger than or equal to 98.5%; the color of the casting powder is uniform; the granularity is uniform; the granulation rate is high; dust is reduced; the melting point of the casting powder is low; the viscosity is low; after the casting powder is added into the crystallizer, the casting powder is melted uniformly and shows excellent spreadability, heat retaining property and adsorptive property; heat is transferred uniformly all around the crystallizer, and the lubrication is excellent; and defects such as concave pits, impurities and the like don't exist on the surface of a casting blank, the internal quality is excellent, and the qualified rate of the casting blank is equal to or larger than 99.8%.

The invention provides a piston ring function end chrome plating method. The piston ring function end chrome plating method comprises the procedures of oil elimination, clamp loading, electrolysis degreasing, water washing, tank entering and preheating, reverse engraving, chrome plating, tank discharging and rinsing, and clap unloading. The invention also provides a special clamping tool used for the chrome plating method, the clamping tool comprises a conduction rod, a lifting stem, a central conducting round block and piston ring installing rings, wherein one end of the conducting rod is connected with the central conducting round block, the other ends are connected with the piston ring installing rings, and one end of the lifting stem is also connected with the central conducting round block. The piston ring function end chrome plating method of the invention has the advantages: firstly, the loading and unloading of the piston and the chrome plating clamping tool are convenient and rapid, and the production efficiency is high; secondly, the technology flow is simple and practical, and the processing control difficulty is small; thirdly, the uniformity of the chrome layer of the same ring is good, and the thickness of the chrome plating layer is guaranteed to be between 0.02 to 0.025 mm; simultaneously the thickness of the chrome layer of the whole batch is stable, and the uniformity of the chrome layer of the whole end surface of the same ring can be guaranteed to be less than and equal to 0.005 mm.

The invention discloses a production method for improving the surface quality of thin-gauge pipeline steel. Chemical components comprise, by mass percent, 0.040%-0.080% of C, 0.10%-0.30% of Si, 1.20%-1.90% of Mn, not larger than 0.015% of P, not larger than 0.0030% of S, not larger than 0.30% of Ni, not larger than 0.30% of Cr, not larger than 0.20% of Cu, not larger than 0.070% of Nb, not largerthan 0.15% of Mo, not larger than 0.01% of V, 0.005%-0.02% of Ti, not larger than 0.0050% of N, 0.001%-0.003% of Ca, 0.010%-0.050% of Al and the balance Fe and inevitable impurities. Through the smelting process, the surface quality of a cast blank is optimized and improved, the rolling forming technology is adjusted, the integrity of scale on the surface of a steel plate is improved, a corrosion-resisting pipeline steel plate with high surface quality is obtained, and the product quality is improved.

The invention discloses a metal-based surface composite material and a preparation method thereof. The preparation method comprises the following steps: uniformly coating a lower plate with enhanced granules such as silicon carbide by using organic adhesive, covering the lower plate with a thin upper plate, and performing stirring and friction treatment on the upper plate by using a stirring headwith a needle under the conditions that the rotating speed of a stirring and friction machine is 1000 to 2500 rpm and the welding speed is 30 to 200 mm/min to obtain the granule enhanced metal-based surface composite material. The organic adhesive comprises polyvinyl alcohol. The enhanced granules comprise silicon carbide and aluminum oxide. The metal plate can be aluminum alloy or magnesium alloy.

A rope for elevator in which a core rope comprises a core rope body, and its resin core rope coating. An inner layer strand aggregate comprises a plurality of inner layer strands stranded around the core rope on the outer circumference thereof. Each inner layer strand comprises an inner layer strand body, and its resin inner layer strand coating. An outer layer strand aggregate comprises a plurality of outer layer strands stranded on the outer circumference of the inner layer strand aggregate. Each outer layer strand has an outer layer strand body. The outer layer strand aggregate is coated with a resin outer layer coating. The inner layer strand body and the inner layer strand coating are bonded through adhesive, and the outer layer strand and the outer layer coating are bonded through adhesive.

The invention belongs to the technical field of magnetic control sputtering depositing air-sensitive films, particularly relates to a preparation method of mixing zinc oxide with air-sensitive films. Metal zinc is used as a target material in a super-high vacuum magnetic control sputtering coating device or the metal zinc is used as a base material of a target material and independent block-shaped oxide or independent block-shaped simple-substance metal to be mixed is uniformly distributed in a composite target material formed sputtering etching areas to be used as a target material. A pipe-shaped insulating material or a plate-shaped insulating material is used as a substrate, and the substrate is controlled to rotate at a constant speed to carry out magnetic control sputtering depositing film; then heat oxidizing treatment is carried out to obtain an air-sensitive film. Compared with the prior art, the invention has the advantages of simple technology, precise film thickness of the prepared air-sensitive film, uniform ingredients, stable structure and high productive efficiency, and the prepared air-sensitive film has the advantages of precise thickness, uniform ingredients, stable structure and high productive efficiency.