82results about How to "Resolve aggregation" patented technology

The invention provides a method for preparing an ultra-high hardness cladding layer through the synchronous ultrasonic vibration assisting laser technology. According to the specific scheme, the method includes the steps that ultrasonic vibration is synchronously introduced in the Ni-based metal ceramic coating cladding process, mobility of liquid metal can be improved in the mode, tissue distribution is more uniform, in the solidification process, a growing dendrite net can be broken and made to be dispersed to all portions of melt, small crystal nucleuses which are uniformly distributed are formed, segregation of metal ceramic is avoided, and therefore it is guaranteed that the cladding layer is not prone to cracking when ultra-high hardness is acquired; equipment is simple, calibration and installation are facilitated, energy consumption is low, the working environment is good, and acquired coating metal ceramic particles are uniform in distribution, high in hardness and good in abrasion resistance.

This invention relates to a copper-coated nm titanium dioxide light accelerant particle and preparation method, while relates to a light accelerant and preparation method and its applications. This invention by adding TiO2 Solution metal copper, surfactant, reductant and under the UV irradiation, Use nm titanium dioxide as a photochemical reaction induced, copper metal particles were produced by light reduction reaction in the surface of nm titanium dioxide, and obtain copper nm TiO2 composite materials. This invention not only solves the TiO2 nm particles aggregation problem, and copper coated with TiO2 because of long-term metal ions release effects, in dark conditions with a good antibacterial antifungal function, it overcomes the shortcomings of traditional light accelerant must acting under the illumination conditions, has a broader application.

The invention relates to a high-surface-quality 1200 MPa-grade hot-dip galvanized dual-phase steel. The hot-dip galvanized dual-phase steel comprises the following chemical components of, in percentage by mass, 0.07%-0.10% of C, 0.25%-0.55% of Si, 1%-4% of Mn, less than or equal to 0.016% of P, less than or equal to 0.008% of S, 0.01%-0.05% of Als, less than or equal to 0.006% of N, 0.04%-0.08% ofTi, 0.015%-0.055% of Nb, 0.15%-0.45% of Mo, 0.008%-0.010% of B, and the balance Fe. The production method comprises the steps of continuous casting, hot rolling, cold rolling and galvanization, wherein in the hot rolling process, the coiling temperature is controlled by adopting a U-shaped coiling process, the coiling temperature of a head part and a tail part of a steel coil is 600 +/-20 DEG C,the coiling temperature of the middle section is 550 +/-20 DEG C, and the stability of the uncoiling performance is improved. According to the method, the production cost is remarkably reduced, the steel coil with stable mechanical property in the head part, middle part and tail part is obtained by combining the U-shaped coiling process and a pre-oxidation technology in a zinc plating furnace, thesurface quality of a steel strip is good and can reach the FB1 grade, and the production reliability is high.

The invention discloses a preparation method and application of a stratiform bimetallic oxide sorbent capable of effectively removing low-concentrated phosphate radical. According to the invention, a hydrophobic ionic liquid BmimPF6 is taken as oil phase, and N,N-dimethyl formamide (DMF) is taken as a cosolvent in a Bmim PF6/DMF/H2O ionic liquid-in-water inverse surfactant-free microemulsion system, a small particle diameter ultrathin stratiform bimetallic hydroxide nanosheets precursor is prepared according to a double microemulsion coprecipitation method, calcination of the precursor is carried out at high temperature of 500 DEG C so as to prepare stratiform bimetallic oxides adsorbent. The obtained stratiform bimetallic oxides are 107.36-158.46 cm<2>/g in specific surface area, 8.56-11.17 nm in pore diameter, and 0.358-0.468 cm<3>/g in pore volume. The stratiform bimetallic oxides can restore and form stratiform bimetallic hydroxide nanosheets in an aqueous medium, wherein the particle diameter of nanosheets is 150-200 nm, the thickness is about 5 nm, and the distribution of particle diameters is uniform. The adsorption rate of the stratiform bimetallic oxides is far higher than that of large-grained hydrotalcite prepared from the precursor stratiform bimetallic oxides of the sorbent according to the traditional coprecipitation method.

The invention provides an integrated preparation process of big-tow carbon fiber spreading and curing, which comprises the following steps: a carbon fiber precursor is precisely limited to ensure theneutrality of the carbon fiber precursor when the fiber is spread; the carbon fiber precursor is spread after the precise limiting position, and then a coupling agent is added to permeate the carbon fiber precursor before the spreading process of the carbon fiber precursor is completed; a heat curing process is carried out by traction through a heating roller on the carbon fiber precursor after being permeated; a winding process is carried out; preparation devices are provided. The invention adopts an integrated preparation process of spreading--permeating--heat curing of combination of a special-shaped multiple-roller and an angle roller. The carbon fiber becomes obviously wider and thinner and more evenly arranged after the spreading process, which effectively solves the problem of poorpermeability of the big-tow carbon fiber precursor caused by the bad spreading effect. Furthermore, the phenomena of precursor adhesion, yarn breaking, buckling and lamination angle dislocation afterspreading can be overcome during the spreading process of the big-tow carbon fiber precursor.

The invention provides a production method for a low-fat yogurt ice cream, wherein the method includes the steps: raw materials are mixed and fermented to obtain a material liquid after fermentation; the material liquid after fermentation is demulsified and aged, and a material liquid after aging is obtained; then the material liquid after aging is homogenized, and a material liquid after homogenization is obtained; and the material liquid after homogenization is agitated, wherein the total fat content of the raw materials is lower than 3%, and the homogenization pressure is 10-15 bar. The produced yogurt ice cream is strong in yogurt flavor and delicate in mouthfeel.

The invention relates to a phthalocyanine polymer, an optical limiting device and a preparation method therefor. A special synthetic technique is adopted for synthesizing an asymmetric phthalocyanine compound containing monohydric radicals, and then epoxy resin adhesive monomers with excellent performance after curing are selected, so that the hydroxide radicals of the asymmetric phthalocyanine perform a polymerization reaction with an epoxy group of the adhesive, the phthalocyanine is grafted onto the epoxy resin monomers, and then a curing polymerization reaction is carried out continuously under a modified flexibilizer and a curing agent so as to obtain a low molecular polymer system containing a phthalocyanine unit. The phthalocyanine in the polymer system is uniformly distributed in the whole polymer structure in a single-molecule monomer structure; compared with a traditional doped hybrid and LB film low molecular sol-gel composite method, the phthalocyanine polymer has higher uniformity, transparency, strength, chemical stability and processing stability performance; and the prepared optical limiting device has good optical limiting performance and mechanical performance.

The invention discloses a combined air purifying system and method for a duty room in an ultralong highway tunnel. The combined air purifying system comprises an outdoor purifying and filtering unit arranged in a tunnel lane horizontal adit, filtering devices, a flow mixing cavity and an air supply device are arranged in the outdoor purifying and filtering unit, the filtering devices are arranged on two sides of the flow mixing cavity, and air collected from the tunnel enters the flow mixing cavity after passing the filtering device on one side of the flow mixing cavity, passes the filtering device on the other side of the flow mixing cavity after being mixed with air guided out from the duty room in the flow mixing cavity, and is fed into the duty room through the air supply device. Air purifying technology and oxygen generating technology are combined and applied to improving air quality of the duty room of the ultralong highway tunnel, an air purifying, circulating and controlling method capable of meeting needs of working staff for 24h's work is provided, purifying efficiency can be improved to greatest extent, maintenance frequency is reduced, activated carbon regeneration times are reduced especially, and operation cost is lowered.

The invention discloses a method for preparation of a graphene/carbon aerogel composite material. The method comprises: oxidized grapheme is used as a raw material and reduction and assembling are carried out by a liquid phase to obtain a reduced graphene foam; vacuum impregnation is carried out and composite processing is carried out on a carbon aerogel precursor and the reduced graphene foam; and then polymerization, drying, pyrogenic decomposition, and activation are carried out to obtain a graphene/carbon aerogel composite material. The method has the following advantages: on the basis of the vacuum impregnation composite process, grapheme and carbon aerogel are composited uniformly. During the process, the simple equipment is needed; and the process is stable. The method has the broad large-scale preparation prospects.

The invention discloses a method for adding a ceramic sintering auxiliary. The ceramic sintering auxiliary is added in the form of forming a nano TiO2 or nano ZrO2 coating on the surface of a main phase powder; in such a way, even dispersion of a small quantity of sintering agent in the main phase powder is realized; the sintering assisting effect is effectively improved through addition of a small dosage of sintering auxiliary. The method is advantageous for sintering preparation of high-purity phase ceramics, and also effectively capable of solving the aggregation problem of the sintering auxiliary when the difference between the grain sizes of the main phase powder and the sintering auxiliary is overhigh, and avoiding local overburning; as a result, the sintering homogeneity of the main phase powder particles and the sintering assisting effect of the sintering auxiliary are effectively improved.

The invention provides a generalized zero sample target classification method based on active learning and a variational auto-encoder. The method is used for solving the problem of bias caused by loss of unknown class supervision information and the problem of low-dimensional feature aggregation caused by projection from high-dimensional features to low-dimensional space in the prior art, and effectively improving the classification accuracy. The method comprises the following implementation steps: acquiring a training sample set Ptrain and a test sample set Ptest; constructing a generalized zero sample classification model H based on the variational auto-encoder; carrying out iterative training on the variational auto-encoder f and a nonlinear classifier fclassifier in the generalized zero sample classification model H based on the variational auto-encoder; and obtaining a target classification result of a generalized zero sample. The method can be applied to the fields of classification of rare species lacking training data, biomedical image recognition and the like.

The invention discloses a method for improving thermal stability of soybean protein by combining preheating and ultrasonic treatment. The method comprises the following specific steps of: taking soybean protein powder, dispersing the soybean protein powder in deionized water, and stirring at room temperature to ensure that the soybean protein powder is completely hydrated to obtain a first soybean protein dispersion liquid, wherein the mass concentration range of the first soybean protein dispersion liquid is 1-6%; preheating the first soybean protein dispersion liquid, and then immediately cooling to obtain a second soybean protein dispersion liquid; treating the second soybean protein dispersion liquid under ultrasonic waves to obtain a third soybean protein dispersion liquid; and repeatedly preheating, cooling and ultrasonically treating the third soybean protein dispersion liquid, repeating once as one cycle, and drying after at least six cycles to obtain a modified soybean protein dispersion liquid to obtain modified soybean protein powder. The thermal-stability soybean protein prepared by the method disclosed by the invention can be widely applied to protein-containing beverages, and the stability of related products in a hot processing process is improved while the protein content is increased.

The invention belongs to the technical field of composite material processing, and particularly relates to a pultrusion die for producing a hybrid fiber reinforced polymer rod and a preparation process. The pultrusion die comprises a yarn roll containing frame, a glue dipping device, a pre-forming device, a preheating device, a secondary forming device, a winding device, a high-temperature curingforming device, a cooling device, a traction device and a cutting device which are connected in sequence; the pre-forming device is used for extruding fiber bundles which are impregnated with the resin and are distributed in an array to form an array of hybrid fiber secondary rods; the preheating device is used for heating the hybrid fiber secondary rods output by the pre-forming device, an inletof the preheating device is connected with the pre-forming device through a glue scraping device, and an outlet of the preheating device is connected with the secondary forming device through the gluescraping device; and the secondary forming device is used for extruding the plurality of preheated hybrid fiber secondary rods to form a main rod. According to the pultrusion die, the problem that low-strain fibers cannot be uniformly dispersed on the cross section of the HFRP rod according to a preset mode when the HFRP rod is produced can be solved.

A method for preparing fatty acid silver salt used to produce photosensitive heat development imaging material includes crystal growing process of fatty acid silver salt, superflitering process, concentrating process, redispersing process of fatty acid silver salt. . The abovesaid preparing processes are carried out in closed container under vacuum condition with internal negative pressure value of 0.01 - 0.09 Mpa in closed container.

The present invention provides a multi-fuel energy saving environmentally-friendly cooker. The invention belongs to burner, especially a cooker generating combustible gas using solid combustible as fuel material. The pattern is an imporved pattern to the traditional fuel cooker, the lower of the furnace is a conical surface which upper is big and lower is small, the dust storage chamber wall is a bowl shaped curve and smoothly connected with the conical surface of the furnace, the inlet of the gas-guide tube extends to the center of the furnace, outlet tube of the blower is connected with the appendix previous to the dust storage chamber and the burning head. The invention has a reasonably designing structure, generating combustible gas by combustible such as straw, Eupatorium adenophorum, hyacinth, garbage etc, burning completely, generating less clinker, having no waste gas drainage, and having a simple feeding operation.

The invention discloses a power battery module heat dissipation system, and the system comprises a battery module, a heat dissipation assembly and a water-cooling heat dissipation module; the battery module comprises a shell and a plurality of battery cell units, the battery cell units are placed in a containing cavity, and the battery cell units are connected in series or in parallel to form a group and are packaged and formed through the shell; the heat dissipation assembly comprises a plurality of transverse heat pipes arranged in an array and a plurality of longitudinal heat pipes arranged in an array; the transverse heat pipes and the longitudinal heat pipes are combined to form an installation area, the battery module is installed in the installation area, heat dissipation working media are arranged in the transverse heat pipes and the longitudinal heat pipes, and the transverse heat pipes are connected with the water-cooling heat dissipation module; in the charging and discharging process of the battery module, the heat inside the battery module and near an electrode is quickly transferred to the bottom of the battery module through the longitudinal heat pipes and then transferred to the water-cooling heat dissipation module through the transverse heat pipes for heat dissipation, so the problem of heat accumulation inside the battery module is effectively solved, the temperature of the side wall of the battery module and near the electrode is reduced, and the temperature uniformity and the heat dissipation efficiency of the battery module are improved.