37results about How to "Solve substitution problems" patented technology

The present invention is granular iron oxide red pigment of grain size of 5-100 mesh and its preparation process. The preparation process includes the following steps: compounding water solution of additive in the concentration of 0.3-10 % and heating to 30-100 deg.c; spraying the water solution to iron oxide red in a pelletizing machine to form the granular pigment gradually with the weight ratio of iron oxide red to the water solution being 100 to 15-40; and vibration sieving and stoving to obtain the product. The additive is the combination of two or more of CMCNa, PVA, sodium silicate, glutin, sodium lignosulfonate and ferrous sulfate. The granular iron oxide red pigment has the same performance and use effect as the powdered iron oxide red pigment and is favorable to prevent dust pollution, and may be used to replace powdered iron oxide red pigment.

The invention discloses CPE / POE (chlorinated polyethylene / polyolefin elastomer) component type electro-insulating rubber and a preparation method thereof. The electro-insulating rubber is prepared from the following components in parts by weight: 40-60 parts of chlorinated polyethylene, 40-60 parts of POE, 80-110 parts of talcum powder, 70-90 parts of heavy calcium carbonate, 5-15 parts of paraffinic based oil, 3-10 parts of cross-linking agent and 2-8 parts of cross-linking aids. The insulation rubber is prepared by the extrusion and the granulation by a double-screw extruder in a dynamic vulcanization way.

The invention relates to a carbon nanometer material radiating module for the [heat] radiation of heating elements of a notebook computer, comprising at least one heat transferring module (10) that is contacted with at least one heating element of the notebook computer and made of carbon nanometer materials, at least one thermotube (20), a radiating fin component (30) that is made of carbon nanometer materials and arranged at the condensation end of the thermotube (20) and a radiating fan (40) arranged opposite to the radiating fin component (30). The thermotube (20) is tightly combined with the heat transferring module (10) and the radiating fin component (30) respectively, and the radiating fin component (30) is arranged at the air outlet of the radiating fan (40). The carbon nanometer material radiating module has the characteristics of easy acquisition of materials, low production cost, light weight, corrosion resistance and high radiating efficiency, and the like.

The invention discloses a device and a method for measuring a spatial free attitude of a rigid object, and a method for analyzing data, and relates to a measurement technology. The device comprises a planar orthogonal four-directional cursor generation device and a linear array charge coupled device (CCD); and the linear array CCD is provided with a data output interface. In the invention, a position detector consists of a plurality of linear array CCDs, so the problem that a detector with a large planar array position cannot be substituted is solved, the measurement device is simplified and the same measurement precision within a measurement range can be guaranteed. By adoption of the method for processing the data, the measurement of a linear light position can reach the subpixel level under the condition of poor data quality; and finally, a systematic measurement result can reach a higher level.

The invention relates to a method using wood chip hot grinding pulp to replace OCC pulp to produce kraft liner board paper, and the method comprises the following steps: OCC pulp preparation, wood chip hot grinding pulp preparation, pulp mixing, respective flowing of the OCC pulp into an OCC long fiber pulp tower, an OCC short-fiber pulp tower and an OCC medium-fiber pulp tower according to fiberlength, flowing of the wood chip hot grinding pulp into a wood chip hot grinding pulp tower, and papermaking, wherein the wood chip hot grinding pulp accounts for 15%-40% of pulp of a core layer of the kraft liner board paper. The OCC pulp of different fiber lengths are added according to the different needs of the surface layer, the core layer and the bottom layer of the kraft liner board paper.The core layer of the kraft liner board paper can be prepared by mixing long fiber pulp, short fiber pulp and the wood chip hot grinding pulp in a certain proportion. The wood chip hot grinding pulp is used as a filler, some lignin is removed without use of chemical agents such as an alkali, and no alkali wastewater is produced. The problem of replacement of an OCC waste paper material can be effectively solved, the consumption of OCC waste paper is reduced and the production cost is reduced.

The invention discloses a method for producing white cement at a low temperature from shells instead of limestone. The ingredients of the white cement are as follows (in percentage by weight): 80 to 90 percent of mixed material and 10 to 20 percent of clinker. The preparation method of the mixed material comprises the following steps of: preparing fine powder of shells, kaolin, natural gypsum; and calcining in a high-temperature furnace respectively, and thoroughly mixing them at a ratio of 5: 3: 2. The preparation method of the clinker comprises the following steps of: thoroughly mixing 85% of shell powder and 15% of kaolin powder, calcining at 1350 DEG C, and bleaching in cold water for 1 minute. The invention has the advantages that: the method for preparing white cement from shells has a low calcination temperature, achieves the purpose of waste utilization and saves energy; and the product is healthy and environment-friendly, and the method conforms to the principles of sustainable development in the building material industry and has wide market prospects.

The invention belongs to the field of refrigerants, and particularly relates to a refrigerant replacing R-410A and a preparation method thereof. The refrigerant is formed by fully mixing the following raw materials including, by weight, 44-54 parts of propylene, 10-20 parts of iodotrifluoromethane and 30-40 parts of ethyl fluoride. The preparation method of the refrigerant comprises the following steps that S1, the purity of the raw materials are detected to ensure that the purity reaches the refrigerant-grade standard; S2, a cleaning reagent is used for cleaning a pressure vessel; S3, the cleaned pressure vessel is vacuumed; S4, the raw materials which reach the stand are added into the vacuumed pressure vessel according to the proportion of parts by weight and mixed to obtain a mixture; and S5, the mixture in the S4 is sampled, and whether all components in a sample meet the corresponding proportion of the parts by weight or not is detected. By adoption of the refrigerant replacing the R-410A, all original refrigeration equipment do not need to be replaced, the improvement cost is greatly reduced, and the refrigerant is good in energy saving effect and saves energy by 20-25% compared with the original refrigerant R-410A.

The formula of a thermocuring and UV curing composite adhesive comprises the following components (by weight): 20-40 parts of modified acrylate, 20-40 parts of NCO-terminated urethane acrylate, 20-30parts of an acrylate monomer, 4-6 parts of a photoinitiator, 0.2-1 part of a photosensitizer, 4-6 parts of an additive and 20-50 parts of OH-terminated acrylate or OH-terminated acrylate oligomer. A preparation method comprises the following steps: (1) adding the modified acrylate, the OH-terminated acrylate or OH-terminated acrylate oligomer, the acrylate monomer, the photoinitiator, the photosensitizer and the additive into a reaction kettle in parts by weight, and uniformly stirring at room temperature; and (2) sealing and storing in a dark place at a low temperature, adding NCO-terminatedurethane acrylate during use, and uniformly stirring to obtain the thermocuring and UV-curing composite adhesive. According to the composite adhesive disclosed by the invention, the peel strength of acomposite film can reach 10N / 25mm, the replacement problem of a solvent type composite adhesive is solved, and the use requirements of the composite film can be ensured.

The invention discloses a hybrid chaotic virtual optical image encryption method, which comprises the following steps of: 1, assuming that the size of a plaintext image is M * N, and sequentially reading pixel values of each point of the image from left to right to obtain a pixel matrix F (x, y); step 2, performing phase encoding on the plaintext image F (x, y) to obtain Q (x, y); step 2, modulating Q (x, y) through a random phase template RM1 to obtain F1 (x, y); step 3, carrying out Fourier transform on F1 (x, y), and carrying out random phase template RM2 modulation to obtain F2 (alpha, y);step 4, carrying out inverse Fourier transform on F2 (alpha beta) to obtain a ciphertext image U1; and step 5, performing secondary encryption of pixel value substitution on U1 (x, y) to obtain a ciphertext image U2. According to the invention, a coparametric generalized Fibonacci chaotic system and a coupled tent space-time chaotic system are adopted to respectively construct random templates with good uniformity; therefore, the two chaotic systems have a linkage effect, the defect that the distribution of random template elements constructed by the Logistic chaotic system is not uniform isovercome, and the hiding property on a ciphertext and the sensitivity on a secret key are enhanced.

The invention discloses a water chiller unit for the air-conditioner refrigeration field. The water chiller unit comprises a compressor, a condenser, a liquid reservoir, a drying filter, a liquid mirror, an electronic expansion valve, a first casing type evaporator, a second casing type evaporator, an adjusting valve, a cooling water pump, a first chilled water pump, a second chilled water pump, a three-way valve and refrigerant. The outlet end of the electronic expansion valve is connected with the first inlet end of the first casing type evaporator, the first outlet end of the first casing type evaporator, the first inlet end of the second casing type evaporator and the outlet end of the electronic expansion valve are connected with three orifices of the three-way valve respectively. The water chiller unit solves the problems that an existing one-off cooling and dehumidifying air conditioner is low in evaporation temperature, air supply humidity is difficult to accurately control, energy efficiency ratio of a refrigerating unit is hard to increase. Meanwhile, the invention further provides an operating method of the water chiller unit, and two kinds of chilled water different in temperature are effectively provided. Further, the invention provides the refrigerant. Performance of a heat and humidity segment treatment system can be improved.

The invention belongs to the technical field of refrigerants of fixed commercial air conditioners and movable vehicle air conditioners, and particularly relates to a refrigerant used for replacing R-134A and a preparation method and application of the refrigerant. The refrigerant used for replacing R-134A provided by the invention is prepared from the following components in parts by weight: 10 to35 parts of fluoroethane; 25 to 60 parts of propylene; 20 to 50 parts of difluoroethane; and 15 to 45 parts of trifluoroiodomethane. The refrigerant used for replacing R-134A, provided by the invention, not only is very low in GWP, but also is energy-saving and environment-friendly, and has a very good market application prospect.

The invention relates to the technical field of artificial intelligence, and discloses a document repeatability identification method and device, electronic equipment and a storage medium. The method includes extracting at least two target words of a target document, and constructing a target word sequence of the target document according to the at least two target words, wherein the target words at least comprise nouns, verbs and quantity words in the target document; determining a one-hot coding vector of each word in the target word sequence; according to the one-hot coding vector of each word in the target word sequence, determining a feature vector of the target document; and determining the repeatability of the target document according to the distance between the feature vectors of other documents and the feature vector of the target document. According to the technical scheme, the accuracy of document query is improved on the premise of balancing the time complexity and the space complexity of document duplicate checking, and a new thought is provided for repeated recognition of documents.

The invention relates to improved silicon pigment containing coupling agent and used as the filling material of engineering plastic. The improved silicon pigment containing the coupling agent also contains the following components according to the percent by weight: 41-50 percent of SiO2, 46-50 percent of CaO, 2-5 percent of Al2O3 and 2-5 percent of MgO. The improved silicon pigment containing the coupling agent is processed on surface by silane coupling agent in a coupling way; and the improved silicon pigment containing the coupling agent has flexible flow property, high strength and high retention rate under high temperature, thereby being convenient for use. Various physical indexes and ultraviolet-resistant indexes of a resin product are effectively improved by appropriately regulating the material proportion on the premise that the prior technology and the original filling materials are not changed, the problem of replacing the titanium pigment used as the filling material of the engineering plastic is fully solved, and the cost of the engineering plastic is remarkably lowered.

The invention relates to a windproof inflatable umbrella, comprising an umbrella cover, ribs and an umbrella pole. An air way and an inflating pump communicated with the same are arranged in the umbrella pole; each rib is made of an air balloon; one end of every rib is communicated with the air passage in the umbrella pole; the other end of every rib is communicated with an integrated balloon; theupper end of the umbrella pole is provided with a connection terrace that is connected with the center of the umbrella cover; a motor is arranged in the umbrella pole; a spindle of the motor is connected with the connection terrace such that the umbrella cover is driven to rotate at predetermined speed by using the umbrella pole as an axis; both the inflating pump and the motor are electrically connected with a power system arranged in the umbrella pole. The windproof inflatable umbrella uses the lightweight umbrella cover and the inflatable ribs and umbrella cover edge, so that a stable umbrella structure can be formed; in addition, the motor that may drive the umbrella cover to rotate at certain sped is disposed on the umbrella pole; the umbrella cover is kept opened under the centrifugal action of a weight of the umbrella cover edge, sufficient wind and store can be resisted, the replacement problem with rigid ribs is solved, and good windproof capacity is also given to the umbrella.

The invention relates to a production method for producing corrugated paper by using wood chip thermo-mechanical pulp to replace OCC (old corrugated container) pulp. The production method comprises the following steps of preparing the OCC pulp, preparing the wood chip thermo-mechanical pulp, and proportioning the pulp; enabling the OCC pulp to respectively flow into an OCC long fiber pulp tower, an OCC short fiber pulp tower and an OCC medium fiber pulp tower according to fiber lengths; enabling the wood chip thermo-mechanical pulp to flow into a wood chip thermo-mechanical pulp tower, whereinthe amount of wood chip thermo-mechanical pulp accounts for 10% to 20% of the weight of core layer pulp of the corrugated paper; copying. Compared with the prior art, the production method has the advantages that the OCC pulp with different fiber lengths is added according to the different requirements of surface layer, core layer and bottom layer of the corrugated paper; the long fiber pulp, theshort fiber pulp, and the wood chip thermo-mechanical pulp are mixed according to a certain ratio, so as to prepare the core layer of the corrugated paper; the wood chip thermo-mechanical pulp is used as a filling material, so as to avoid the operation of removing part of lignin by alkaline and other chemical reagents, and avoid the production of alkaline liquid wastewater; the problem of replacing of raw material of the OCC wastepaper is effectively solved, the usage amount of OCC waste paper is reduced, and the production cost is reduced.

The invention relates to a preparation method and application method of pentane spraying type polyurethane combined polyether. The pentane spraying type polyurethane combined polyether is prepared from polyether polyol A, polyester polyol B, polyether polyol C, polyether polyol D, a catalyst, a flame retardant, a foam stabilizer, a chemical foaming agent and a pentane foaming agent. Compared with a conventional product, the combined polyether solves the problems of foaming agent replacement, flame retardance after replacement and foaming viscosity in the spraying industry, has the characteristics of environment-friendly foaming agent and no ODS substance, meanwhile, the overall density and the comprehensive cost of the product are lower than those of a conventional 141b type product, and the comprehensive performance of the product meets the performance requirements of GB50404-2017.

The invention relates an inflatable umbrella; an umbrella cover is made of a light material; an integrated balloon in circular form is arranged at the lower periphery of the umbrella cover; an air passage and an inflating pump communicated with the air passage are arranged in an umbrella pole; ribs are made of air balloons; one end of every rib is communicated with the air passage of the umbrellapole, and the other end of every rib is communicated with the integrated balloon; the upper end of the umbrella pole is provided with a connection terrace connected with the umbrella cover; the connection terrace is provided with a fan inside; the fan can blow air below the umbrella cover to the position above the umbrella cover in radial form; both the inflating pump and the fan are electricallyconnected with a power system in the umbrella pole. The light umbrella cover and the inflatable ribs and umbrella cover edge can form a stable umbrella structure; after the connection terrace that mayblow air to the position above the umbrella cover in the radial form, the inflatable umbrella is imparted certain windproof capacity; the inflatable umbrella enables the problem with hard rib replacement to be solved and also gains good windproof capacity.

The invention belongs to the technical field of coal mining, and particularly relates to a speedy drivage process for a thin bottom plate roadway of a hard coal bed. The process comprises the following steps of coal bed drilling, gas inspection and watering for dust reduction, blasting, gas inspection, dust removal, and watering for dust reduction, temporary support, digging, transportation and permanent support. An excavating type loader and a matching transportation facility are adopted to realize integrated and continuous transportation of coal gangue, roadway differentiation is implemented, novel temporary support is adopted, operators not entering an empty roof area is ensured, construction safety of the operators is ensured, and the method is safe and efficient and shortens the construction period.

The invention discloses a catalyst for hydrogen production and a preparation method thereof. In the catalyst for hydrogen production, eosin is used as a sensitizing agent, a carbon nano-tube is used as a carrier and a photoinduced electron channel, and a copper-based composite metal oxide is used as a catalyst promoter. The preparation method comprises the following steps of: mixing the carbon nano-tube and a metal saline solution, adding water, stirring for several hours, and evaporating water to dryness so as to obtain a carbon nano-tube and metal saline precursor; at the air atmosphere, calcining the precursor for hours so as to obtain a carbon nano-tube and copper-based composite metal oxide system; and soaking the carbon nano-tube and copper-based composite metal oxide system in an aqueous solution containing eosin Y under the protection of N2, and separating to obtain the catalyst for hydrogen production. Under the irradiation of visible light, the catalyst has higher hydrogen production activity and can be used for producing hydrogen by catalyzing and reducing water in visible light. The copper-based composite metal oxide can be used for replacing Pt to server as the catalyst promoter so that the non-platinization of the catalyst is realized; and therefore, the catalyst has a certain application value in the aspect of hydrogen production by reducing water through photocatalysis.

The invention belongs to the technical field of chemical engineering materials, and particularly relates to thermoplastic hard polyurethane foam plastic for automobile interior decoration and a preparation method thereof. The thermoplastic hard polyurethane foam plastic is composed of a component A and a component B, the component A is composed of rapeseed oil derivative, polyether polyol, polyester polyol, crosslinking agent, H2O, foam stabilizer, hole opening agent, foaming catalyst and gel catalyst, and the component B is modified MDI. By the preparation method, foam which is lower in density, high in hole opening ratio and elongation rate, good in elongation effect and high in mechanical performance can be prepared, and requirements, on automobile ceiling interior decoration, of premium cars are met.

The invention relates to a carbon nanometer material radiating module for the [heat] radiation of heating elements of a notebook computer, comprising at least one heat transferring module (10) that isThe invention relates to a carbon nanometer material radiating module for the [heat] radiation of heating elements of a notebook computer, comprising at least one heat transferring module (10) that iscontacted with at least one heating element of the notebook computer and made of carbon nanometer materials, at least one thermotube (20), a radiating fin component (30) that is made of carbon nanome contacted with at least one heating element of the notebook computer and made of carbon nanometer materials, at least one thermotube (20), a radiating fin component (30) that is made of carbon nanometer materials and arranged at the condensation end of the thermotube (20) and a radiating fan (40) arranged opposite to the radiating fin component (30). The thermotube (20) is tightly combined with tter materials and arranged at the condensation end of the thermotube (20) and a radiating fan (40) arranged opposite to the radiating fin component (30). The thermotube (20) is tightly combined with the heat transferring module (10) and the radiating fin component (30) respectively, and the radiating fin component (30) is arranged at the air outlet of the radiating fan (40). The carbon nanometer mhe heat transferring module (10) and the radiating fin component (30) respectively, and the radiating fin component (30) is arranged at the air outlet of the radiating fan (40). The carbon nanometer material radiating module has the characteristics of easy acquisition of materials, low production cost, light weight, corrosion resistance and high radiating efficiency, and the like.aterial radiating module has the characteristics of easy acquisition of materials, low production cost, light weight, corrosion resistance and high radiating efficiency, and the like.

The invention discloses an environment-friendly dipping solution, which comprises the following components in parts by weight: 3-20 parts of blocked isocyanate, 1-5 parts of water-soluble epoxy resin, 40-240 parts of latex, maleic anhydride polybutylene 3-30 parts of alkenes, 65-350 parts of pure water. At the same time, its corresponding preparation method is provided. The dipping solution of the present invention does not contain resorcinol, formaldehyde and its derivatives at all, and the raw materials used are not in the category of hazardous chemicals. According to the requirements of relevant national departments; good results have been achieved in the application of the dipping process of cord fabrics, canvases, and cords made of fibers such as nylon 6, nylon 66, polyester, aramid, and spandex, and the physical properties of the obtained products have reached or even Exceeding the national superior product standard, it solves the replacement problem of "RFL dipping liquid".