115results about How to "Guaranteed infiltration" patented technology

The invention relates to a continuous fiber fabric reinforced thermoplastic polyurethane composite material and a preparation method thereof. The composite material is prepared by heating, curing and cooling a continuous fiber reinforced fabric which is steeped in thermoplastic polyurethane elastomer reaction liquid, wherein the continuous fiber reinforced fabric is selected from one or more of organic fibers, metal fibers or inorganic fibers, and the thermoplastic polyurethane elastomer reaction liquid is formed by polymerizing a polyether component and an isocyanate component. Compared with the prior art, the continuous fiber fabric reinforced thermoplastic polyurethane composite material prepared by using the continuous fiber reinforced fabric as a reinforcing material and a thermoplastic polyurethane elastomer as a reinforced matrix has the advantages of good steeping, low porosity, adjustable thickness, high glass fiber content and the like. The preparation method has the advantages that the production line is simple, equipment can realize the high-efficient continuous production, no environmental pollution is caused in the production process and the like.

The invention relates to equipment used for preparing a continuous fabric reinforced thermoplastic resin. The equipment comprises an unreeling assembly, a tension control assembly, a destaticizing and preheating assembly, a dipping assembly, a cooling assembly and a reeling assembly which are arranged successively. Compared with existing technology, a double-belt roller press is adopted for dipping of fiber and resin, so that defects of thermoplastic materials, such as high melt viscosity and poor melt fluidity, are avoided. In addition, different form pultrusion processes, the reinforced thermoplastic resin with high glass fiber content can be prepared without using any mould. The equipment is simple; operation is easy, fiber content is high, and complete infiltration of fiber and resin can be ensured.

The invention discloses an integration method of a high-reliability power hybrid integrated circuit. The method comprises the following steps of: (1) firstly, washing an original thick film substrate with ultra sound and drying; (2) forming a multilayer Cu-Ni-Cr-Au composite film at the back of a ceramic substrate in a high-vacuum magnetically-controlled sputtering platform in one step by using a high-vacuum sputtering method; (3) selectively sputtering another Cu-Ni-Cr-Au composite film again on the basis so that a multilayer metal film grooved mesh is formed in a selected region; (4) then, annealing at a high temperature to obtain a thick film substrate; and (5) assembling the thick film substrate on a shell base, assembling a semiconductor chip and other separate devices, bonding with silicon-aluminum wires to connect the circuit and seal a lid to obtain a made high-reliability power hybrid integrated circuit. The integrated circuit made by the method has favorable welding system compactness, adhesion, heat conductivity, rapid radiation and circuit reliability and is widely applied to the fields of aerospace, aviation, ships, precise instruments, geological exploration, oil exploration, communication, and the like.

The invention discloses a full-vacuum horizontal liquefied natural gas (LNG) submerged pump pool. The full-vacuum horizontal LNG submerged pump pool comprises a pump pool body, a submerged pump pool and a support. A liquid outlet device which is arranged on the inner side of a pump pool cap is in a structure of high vacuum and heat insulation and an outer casing tube which is arranged on the outer side of the pump poop cap is fixedly connected with a vacuumized joint. The vacuumized joint is communicated with the liquid outlet device and the structure of high vacuum and heat insulation of the full-vacuum horizontal LNG submerged pump pool is formed by the vacuumized joint and a high-vacuum and heat-insulated interlayer between an outer cylinder and inner cylinder of the full-vacuum horizontal LNG submerged pump pool. According to this arrangement, all ways of heat leakage, such as convention, conduction and radiation can be eradicated so that good cold-insulated effect can be ensured. The rate of evaporation per day of LNG in the full-vacuum horizontal LNG submerged pump pool can be reduced by 21.5% to 31.5% compared with the vertical submerged pump pool in the prior art. The full-vacuum horizontal LNG submerged pump pool can be used for filling vehicles or transporting vehicle-mounted LNG, so as to greatly improve the economic benefit of LNG filling stations, LNG transportation and filling vehicles.

The invention provides a membrane surface resistance test method of a lithium ion battery. The method comprises the following steps: stamping a membrane into a sample piece and soaking in lithium ion electrolyte, clamping between two electrode plates after soaking and placing in the electrolyte, connecting the electrode plates with an electrochemical work station, and polishing the clamping surface; drawing a resistance value on a coordinate system of membrane level number and resistance value; overlapping membranes for testing successively according to the above steps; and calculating a discrete point curve slope, wherein the membrane surface resistance is the slope multiplied by the area of the clamping surface. At least two times of testing is carried out on the same kind of membrane, and the difference value of the membrane surface resistances obtained in any two times is not more than 5%, and finally the membrane surface resistances obtained in each time of testing are averaged, wherein the average value is decided to be the final surface resistance value of the membrane. Before testing, the membrane to be tested is soaked with lithium ion electrolyte for two hours under a sealing environment. The method provided by the invention can conveniently and accurately measure the surface resistance of the membrane.

The invention discloses ginger candy and a preparation method thereof. The ginger candy is prepared from the following raw materials in parts by weight: 40-60 parts of fresh ginger, 250-300 parts of brown sugar, 100-120 parts of cake flour, 10-15 parts of sesame seeds, 20-30 parts of honey, 8-12 parts of walnut powder, 8-10 parts of vegetable oil, 1-3 parts of bamboo leaves, 2-4 parts of lotus leaves, 3-6 parts of day lily, 1-3 parts of lotus root starch and 6-10 parts of pomegranate juice. According to the technology disclosed by the invention, the bamboo leaves, the lotus leaves and the like are utilized, so that a nutrient solution is prepared for impregnating the fresh ginger, and the prepared ginger candy has the health-care efficacies of clearing heat, removing toxicity and the like.

The invention discloses a unidirectional water guiding brick which comprises an impermeable layer and a permeable layer arranged at the upper part of the impermeable layer, wherein a first water guiding hole group is arranged inside the permeable layer, and comprises a plurality of water guiding holes penetrating through the permeable layer; axes of water guiding hole are roughly parallel to the impermeable layer. The invention discloses a bi-directional water guiding brick, in the permeable layer of the unidirectional water guiding brick, a second water guiding hole group is further arranged at the lower part of the first water guiding hole group, comprises a plurality of water guiding holes penetrating through the permeable layer, and forms a certain included angle relative to the first water guiding hole group. The invention further discloses a bathroom ground structure formed by the pavement of the water guiding bricks provided with water guiding holes, so that when water flow in a bathroom is larger, not only can the original ground gradient be relied on to guide water, but also moisture on floor tiles can permeate into the water guiding holes through a permeable surface layer, and can be discharged by the water guiding holes.

The invention discloses a polyurethane potting glue for household water purification hollow fiber membranes, wherein the polyurethane potting glue comprises two components A and B, wherein the component A is the mixture of a variety of polyols, the component B is one or a variety of polyol modified isocyanate prepolymers, and during the use, the component A and the component B are mixed accordingto a weight ratio of 100:50-100. According to the present invention, the polyurethane potting glue has the following advantages that the mixing viscosity is moderate, the polyurethane potting glue easily infiltrates most of hollow fiber membrane filaments, and the glue extending is not easily generated; the hardening and the strength of the glue are high after the curing, the adhesion to the ABS shell is strong, and the water hammer simulation test results show that the problems of cracking, separation from the shell and the like are not generated; the curing rate is moderate, and the cured filtering core end head can be cut within 2 h in the case of the operable time of 20-25 min; and the problems caused by the use on the water filtering core product can be solved, and the quality of thewater filtering core product and the production efficiency can be improved.

The invention discloses a pipe connecting structure. The pipe connecting structure comprises a first pipe fitting and a second pipe fitting which are made of different metal materials. The pipe connecting structure further comprises a bushing which is made of the same metal material as the first pipe fitting. The connecting ends of the bushing and the second pipe fitting and the connecting end of the first pipe fitting are sequentially arranged in a sleeving mode and are fixedly welded. A plurality of through openings are formed in the pipe wall of the connecting end of the second pipe fitting in the circumferential direction so that welding flux can circulate in the welding process. The pipe connecting structure is applied to fixed welding of the pipe fittings made of the two different materials, welding strength of the connecting position of the two pipe fittings can be improved, and connecting reliability and durability of the two pipe fittings are guaranteed. In addition, the invention discloses a pipe connecting method and an air conditioning unit pipe assembly with the pipe connecting structure.

The invention discloses a printing method of a thick copper plate. The printing method of the thick copper plate comprises the following steps of: preparing a negative film solder resist line mask film and a screen printing plate, performing cutting, carrying out surface grinding treatment, and carrying out circuit etching; printing the negative film solder resist line mask, wherein the UV light curing energy value of the negative film solder resist line mask is 1700 +/-500 mj/cm2, and the black matrix solder resist UV light curing energy value is 2200 +/-400 mj/cm 2; carrying out solder resist and single-sided or double-sided character silk-screen printing after the negative film solder resist line mask is completed; and completing the steps after performing punching, molding and surfacetreatment. Compared with the prior art, the printing method is low in cost, easy and convenient to operate and high in production efficiency, and the defects of blistering, oil seepage or rough appearance caused by solder mask and the like can be avoided.

The invention provides a concrete crack repairing device and a concrete crack repairing method, and relates to the technical field of concrete construction. The concrete crack repairing device comprises a protective shell and a water absorption part; the water absorption part is arranged in the protective shell; an opening is formed in the protective shell; and the water absorption part is used for bearing repairing slurry and covering the crack position of concrete at the opening. A constructor places the water absorption part in the protective shell, then pours repairing slurry into the water absorption part to enable the water absorption part to bear enough repairing slurry, then covers the crack position with the opening of the protective shell, and enables the water absorption part toabut against the crack position of concrete from the opening, so that the repairing slurry absorbed by the water absorption part permeates into the crack position. The water absorption part is used for absorbing, bearing and releasing repairing slurry; the protective shell plays roles in protecting, supporting and sealing, so that the infiltration amount of the repairing slurry can be ensured, the infiltration depth of the repairing slurry is deepened, and the crack repair effect is improved.

The invention relates to the technical field of lithium ion batteries, in particular to a high-compaction-resistant composite conductive agent and application thereof in a lithium ion battery. The composite conductive agent comprises a porous conductive agent and other conductive agents, the porous conductive agent is a carbon material, and the particle size of the carbon material is micron-sizedor sub-micron-sized; other conductive agents are selected from one or more of acetylene black, carbon black, Ketjen black, conductive graphite, graphene, carbon nanotubes, carbon nanowires, Super P and KS-6, wherein the mass ratio of the porous conductive agent to other conductive agents is 5: 95-95: 5. Under the condition of high compaction density, the integrity of main material particles in a material layer is ensured; meanwhile, the composite conductive agent is beneficial to increase of pores among active material particles in the coating, the porous surface of the composite conductive agent is beneficial to infiltration of electrolyte, and the pores in the electrode are not liable to block in the high-compaction rolling process so that good wettability between the pole piece and theelectrolyte can be guaranteed, and the performance of the battery is improved.

The invention discloses a method for preparing a photo-anode of a dye-sensitized solar cell. An ordered mesoporous titanium dioxide thin film of a nanometer porous structure is adopted as the photo-anode of the dye-sensitized solar cell. The method comprises the steps of preparing butyl titanate, hydrochloric acid and anhydrous ethanol solution, enabling solution to become colloidal sol, conducting aging treatment, drawing the film, annealing, and preparing the dye-sensitized solar cell. The mesoporous titanium dioxide thin film obtained through the method is provided with even and ordered pore passages, has a high specific surface area and relatively good heat stability, can greatly improve the adsorption rate of dye sensitizer molecules and avoid the agglomeration of the dye sensitizer molecules, and enables the dye sensitizer molecules to show good optical activity. When a substrate covered by the thin film is used as the photo-anode of the dye-sensitized solar cell, the photo-anode can be improved in absorbing sunlight, and the transmission rate of electrons and photoelectric conversion efficiency can be improved, so that the performance of the battery can be improved.

The present invention discloses a silicon oil transformer oil injection process and a device thereof. Upper and lower valve of transformer (1) passes through three-way pipe and connects with silicon oil processing system (2) and vacuum system (3), a expander of transformer (1) connects with pressurized static release system (4), PLC circuit control box (5) electrically connects with pressurized static release system (4) and vacuum system (3). All coefficient of silicon oil injected into the transformer can be guaranteed when silicon oil is injected, all trouble probability of the transformer can be reduced, and all expenses brought by transformer reworking can be reduced. The invention describes a silicon oil injection method with operation simple, convenient, secure and reliable. The combination of the device is easy, production convenient and running reliable.

The invention belongs to the technical field of boilers, and discloses an environment-friendly device for dust removal of an industrial boiler. The environment-friendly device comprises a dust removal mechanism body, wherein the dust removal mechanism body comprises a flue, an upper seal head and a lower seal head are arranged on the upper end and the lower end of the flue through connecting pieces, a fume exhaust pipe fixedly communicates with the peripheral side surface of the upper seal head, a fume inlet pipe fixedly communicates with the peripheral side surface of the lower seal head, a dust discharging pipe fixedly communicates with the bottom of the lower seal head, a vibration motor is fixedly connected to the peripheral side surface of the flue, a heat exchange cavity and a fume discharging flow channel which are isolated from each other are sequentially formed inside the flue from outside to inside, and a dustproof inner container is rotationally connected to the inner wall of the fume discharging flow channel through a bearing, and the inner wall of the dustproof inner container is fixedly connected with a driven frame. According to the environment-friendly device, through the design of the flue, a spiral cleaning scraper and the dustproof inner container, dust cleaning operation of the boiler flue can be automatically completed, and through automation of the dust cleaning operation, the automation degree and the dust cleaning efficiency of the device are effectively improved.

The invention discloses a fiber reinforced MC nylon composite material and a moulding method thereof. The composite material employs a caprolactam monomer as a resin matrix and takes reinforced fibers as a reinforced frame, the characteristics of low viscosity and good fluidity of a caprolactam solution are used, infiltration of fiber by caprolactam can be ensured, fiber content of a product is greatly increased, and the composite material has strong physical and mechanical properties. The moulding method can be used for preparing a liquid state active material to be polymerized through a base catalysis principle, a cocatalyst is added and is casted into a preheated die, then the step of hot press molding is carried out, the physical and mechanical properties such as tensile strength and bending strength of the prepared composite material is better than that of the MC nylon, the impact intensity is obviously increased, heat resistance and size stability are good, flame resistance performance is enhanced, and original characteristics of good wear resistance and self lubricating of the MC nylon can be kept, and the service life is prolonged.

The invention discloses an absorption core and a preparation method of the absorption core. The absorption core comprises an upper layer spunbond nonwoven, a lower layer spunlace nonwoven and an absorption layer arranged between the two layers of the nonwovens, wherein the absorption layer consists of a high-water-absorption resin column and a super water absorbent fiber column which are arrangedalternatively; the part corresponding to the high-water-absorption resin column, on the upper layer nonwoven is a water repellency treatment column, and the part corresponding to the super water absorbent fiber column is the hydrophilic treatment column; and on the lower layer nonwoven, at least the part corresponding to the high water absorption resin column is a hydrophilic treatment column, andthe part corresponding to the super water absorbent fiber column is the water repellency treatment column. Hydrophilic treatment and water repellency treatment are performed alternatively, liquid infiltration can be guaranteed, the hydrophilic area can be reduced, and reverse osmosis is reduced. Because liquid is uniformly distributed in the absorption core, emergence of local nuggets can be avoided, and high softness can be obtained.

The invention relates to wind driven generator blades, vessels, yachts, automobile bodies and the like, in particular to vacuum infusion epoxy resin used for carbon fiber and applied to the production and manufacture process. The vacuum infusion epoxy resin comprises a resin component and a curing agent component, wherein the resin component comprises 50%-70% of a bisphenol A epoxy resin 127, 15%-30% of a bisphenol F epoxy resin 170 and 5%-15% of an epoxy diluent BDGE; the curing agent component comprises 40%-70% of a polyether amine curing agent D230, 20%-30% of diaminocyclohexane DCH 99 and 10%-20% of 2-methyl-diaminopentane Dytek A; and the resin component and the curing agent component are mixed in the proportion of 100:30 to form composition. The vacuum infusion epoxy resin for carbon fiber has low blending viscosity, the infiltration of carbon fiber is good, the operation pot life is flexible, appropriate adjustment can be performed according to different curing agents, the quality of blade and automobile body products is improved greatly, and the production efficiency can be increased.